diff --git a/crates/op-codegen/src/lib.rs b/crates/op-codegen/src/lib.rs
index afa2aebb4..31851bfac 100644
--- a/crates/op-codegen/src/lib.rs
+++ b/crates/op-codegen/src/lib.rs
@@ -412,7 +412,7 @@ mod tests {
     /// Bare empty document — no variables, no pages, no children.
     fn empty_doc() -> PenDocument {
         PenDocument {
-            version: "0.8.0".into(),
+            version: "1.0.0".into(),
             name: None,
             themes: None,
             variables: None,
diff --git a/crates/op-editor-core/src/color_picker_tests.rs b/crates/op-editor-core/src/color_picker_tests.rs
index cdf549466..da5cf9d2d 100644
--- a/crates/op-editor-core/src/color_picker_tests.rs
+++ b/crates/op-editor-core/src/color_picker_tests.rs
@@ -59,7 +59,7 @@ fn add_layer_blur_appends_blur_effect() {
 fn add_effect_on_effectless_node_creates_no_undo_state() {
     // An icon_font node carries no `effects` list. Adding an
     // effect must be a no-op that leaves NO empty undo/dirty state.
-    let src = r#"{"version":"0.8.0","children":[
+    let src = r#"{"version":"1.0.0","children":[
         {"type":"icon_font","id":"i1","name":"Icon",
          "x":0,"y":0,"width":20,"height":20,"iconFontName":"star"}
     ]}"#;
diff --git a/crates/op-editor-core/src/command_refine_tests.rs b/crates/op-editor-core/src/command_refine_tests.rs
index faf37d3f5..b72a87979 100644
--- a/crates/op-editor-core/src/command_refine_tests.rs
+++ b/crates/op-editor-core/src/command_refine_tests.rs
@@ -39,7 +39,7 @@ use jian_ops_schema::node::PenNode;
 
 /// Parse a single node fixture by wrapping it in a canonical doc.
 fn node_from(json: &str) -> PenNode {
-    let doc = format!(r#"{{"version":"0.8.0","children":[{json}]}}"#);
+    let doc = format!(r#"{{"version":"1.0.0","children":[{json}]}}"#);
     jian_ops_schema::load_str(&doc)
         .expect("fixture parses")
         .value
diff --git a/crates/op-editor-core/src/components.rs b/crates/op-editor-core/src/components.rs
index b2d3cef53..ce9561e47 100644
--- a/crates/op-editor-core/src/components.rs
+++ b/crates/op-editor-core/src/components.rs
@@ -436,7 +436,7 @@ mod tests {
     #[test]
     fn from_document_indexes_reusable_frames() {
         let mut doc = jian_ops_schema::PenDocument {
-            version: "0.8.0".into(),
+            version: "1.0.0".into(),
             name: None,
             themes: None,
             variables: None,
diff --git a/crates/op-editor-core/src/fills.rs b/crates/op-editor-core/src/fills.rs
index e2a6f23a0..401bdc611 100644
--- a/crates/op-editor-core/src/fills.rs
+++ b/crates/op-editor-core/src/fills.rs
@@ -1026,7 +1026,7 @@ mod tests {
     /// A bare rectangle node fixture, parsed from `.op` JSON so it
     /// stays robust to schema growth.
     fn rect_node() -> PenNode {
-        let src = r#"{"version":"0.8.0","children":[
+        let src = r#"{"version":"1.0.0","children":[
             {"type":"rectangle","id":"r1","name":"R",
              "x":0,"y":0,"width":10,"height":10}
         ]}"#;
diff --git a/crates/op-editor-core/src/fills_tests.rs b/crates/op-editor-core/src/fills_tests.rs
index 2cd9bba4b..9631fe519 100644
--- a/crates/op-editor-core/src/fills_tests.rs
+++ b/crates/op-editor-core/src/fills_tests.rs
@@ -8,7 +8,7 @@ use jian_ops_schema::style::{PenFill, PenStroke, SidedThickness, StrokeThickness
 
 fn three_fill_state() -> crate::EditorState {
     let src = r##"{
-      "version":"0.8.0",
+      "version":"1.0.0",
       "children":[{
         "type":"rectangle","id":"n1","name":"R",
         "x":0,"y":0,"width":10,"height":10,
@@ -204,7 +204,7 @@ fn node_stroke_width_reads_max_sided_edge() {
 }
 
 fn rect_node() -> PenNode {
-    let src = r#"{"version":"0.8.0","children":[
+    let src = r#"{"version":"1.0.0","children":[
         {"type":"rectangle","id":"r1","name":"R",
          "x":0,"y":0,"width":10,"height":10}
     ]}"#;
diff --git a/crates/op-editor-core/src/history_bench_tests.rs b/crates/op-editor-core/src/history_bench_tests.rs
index 504382d84..88e1785aa 100644
--- a/crates/op-editor-core/src/history_bench_tests.rs
+++ b/crates/op-editor-core/src/history_bench_tests.rs
@@ -30,7 +30,7 @@ use std::time::Instant;
 
 fn empty_doc() -> PenDocument {
     PenDocument {
-        version: "0.8.0".into(),
+        version: "1.0.0".into(),
         name: None,
         themes: None,
         variables: None,
diff --git a/crates/op-editor-core/src/history_snapshot_tests.rs b/crates/op-editor-core/src/history_snapshot_tests.rs
index d8daef47f..1c6eddeb1 100644
--- a/crates/op-editor-core/src/history_snapshot_tests.rs
+++ b/crates/op-editor-core/src/history_snapshot_tests.rs
@@ -383,7 +383,7 @@ fn repair_swap_is_copy_on_write_and_does_not_contaminate_a_shared_sibling_snapsh
     // A doc whose top-level entry "inst1" is a NON-Ref node — the
     // contamination signature a scope-time snapshot would carry.
     let mut doc = PenDocument {
-        version: "0.8.0".into(),
+        version: "1.0.0".into(),
         ..empty()
     };
     doc.children = vec![
@@ -432,7 +432,7 @@ fn repair_swap_is_copy_on_write_and_does_not_contaminate_a_shared_sibling_snapsh
 
 fn empty() -> PenDocument {
     PenDocument {
-        version: "0.8.0".into(),
+        version: "1.0.0".into(),
         name: None,
         themes: None,
         variables: None,
diff --git a/crates/op-editor-core/src/instance_child_override.rs b/crates/op-editor-core/src/instance_child_override.rs
index fd82bba59..560ca3e2f 100644
--- a/crates/op-editor-core/src/instance_child_override.rs
+++ b/crates/op-editor-core/src/instance_child_override.rs
@@ -140,7 +140,7 @@ mod tests {
     use crate::EditorState;
 
     const DOC: &str = r##"{
-      "version":"0.8.0",
+      "version":"1.0.0",
       "children":[
         {"type":"frame","id":"button","name":"Button","reusable":true,
          "width":120,"height":40,"children":[
@@ -159,7 +159,7 @@ mod tests {
     fn rich_color_state() -> EditorState {
         let doc = jian_ops_schema::load_str(
             r##"{
-              "version":"0.8.0",
+              "version":"1.0.0",
               "children":[
                 {"type":"frame","id":"card","name":"Card","reusable":true,
                  "width":120,"height":80,"children":[
diff --git a/crates/op-editor-core/src/instance_override.rs b/crates/op-editor-core/src/instance_override.rs
index bfa5bca33..e086223f0 100644
--- a/crates/op-editor-core/src/instance_override.rs
+++ b/crates/op-editor-core/src/instance_override.rs
@@ -460,7 +460,7 @@ mod tests {
     use crate::ref_resolve::resolve_refs_for_canvas;
 
     const DOC: &str = r##"{
-      "version":"0.8.0",
+      "version":"1.0.0",
       "children":[
         {"type":"frame","id":"card","name":"Card","reusable":true,"x":0,"y":0,"width":200,"height":100,
          "fill":[{"type":"solid","color":"#222222"}],
diff --git a/crates/op-editor-core/src/instance_override_history_tests.rs b/crates/op-editor-core/src/instance_override_history_tests.rs
index 499d23799..1e615c807 100644
--- a/crates/op-editor-core/src/instance_override_history_tests.rs
+++ b/crates/op-editor-core/src/instance_override_history_tests.rs
@@ -3,7 +3,7 @@ use crate::walkers::find_node;
 use jian_ops_schema::node::container::{AlignItems, JustifyContent};
 
 const HISTORY_DOC: &str = r##"{
-  "version":"0.8.0",
+  "version":"1.0.0",
   "children":[
     {"type":"frame","id":"master","name":"Master","reusable":true,
      "x":0,"y":0,"width":100,"height":100,"layout":"vertical",
diff --git a/crates/op-editor-core/src/ref_resolve.rs b/crates/op-editor-core/src/ref_resolve.rs
index 0602496c2..b75fa890d 100644
--- a/crates/op-editor-core/src/ref_resolve.rs
+++ b/crates/op-editor-core/src/ref_resolve.rs
@@ -409,7 +409,7 @@ mod tests {
     }
 
     const DOC_WITH_INSTANCE: &str = r##"{
-      "version":"0.8.0",
+      "version":"1.0.0",
       "children":[
         {"type":"frame","id":"card","name":"Card","reusable":true,"x":0,"y":0,"width":200,"height":100,
          "fill":[{"type":"solid","color":"#222222"}],
@@ -471,7 +471,7 @@ mod tests {
     fn unknown_target_and_cycles_drop_instead_of_panicking() {
         let doc = doc_from(
             r##"{
-              "version":"0.8.0",
+              "version":"1.0.0",
               "children":[
                 {"type":"ref","id":"dangling","ref":"missing"},
                 {"type":"frame","id":"a","name":"A","reusable":true,
@@ -508,7 +508,7 @@ mod tests {
     // empty (a high-`cornerRadius` `fit_content` card collapses to a
     // white circle).
     const DOC_WITH_SLOT_INSTANCE: &str = r##"{
-      "version":"0.8.0",
+      "version":"1.0.0",
       "children":[
         {"type":"frame","id":"cardMaster","name":"Card/Default","reusable":true,
          "width":"fit_content","height":"fit_content","cornerRadius":24,"padding":16,
@@ -562,7 +562,7 @@ mod tests {
         // the slot-fallback path).
         let doc = doc_from(
             r##"{
-              "version":"0.8.0",
+              "version":"1.0.0",
               "children":[
                 {"type":"frame","id":"master","name":"Master","reusable":true,
                  "width":200,"height":100,
diff --git a/crates/op-editor-core/src/tests_drag_mutators.rs b/crates/op-editor-core/src/tests_drag_mutators.rs
index 3dc90012b..104a6096a 100644
--- a/crates/op-editor-core/src/tests_drag_mutators.rs
+++ b/crates/op-editor-core/src/tests_drag_mutators.rs
@@ -565,7 +565,7 @@ fn incremental_container_resize_never_accumulates_descendant_changes() {
 #[test]
 fn single_axis_resize_freezes_only_that_axis_and_preserves_child_keywords() {
     let doc = jian_ops_schema::load_str(
-        r#"{"version":"0.8.0","children":[{"type":"frame","id":"root","width":"fill_container","height":"fit_content","layout":"vertical","children":[{"type":"rectangle","id":"child","width":"fill_container","height":40}]}]}"#,
+        r#"{"version":"1.0.0","children":[{"type":"frame","id":"root","width":"fill_container","height":"fit_content","layout":"vertical","children":[{"type":"rectangle","id":"child","width":"fill_container","height":40}]}]}"#,
     )
     .expect("keyword fixture parses")
     .value;
diff --git a/crates/op-editor-core/src/uikit_io.rs b/crates/op-editor-core/src/uikit_io.rs
index a6dad793f..6b454939b 100644
--- a/crates/op-editor-core/src/uikit_io.rs
+++ b/crates/op-editor-core/src/uikit_io.rs
@@ -463,7 +463,7 @@ mod tests {
 
     fn doc_with(children: Vec<PenNode>) -> PenDocument {
         PenDocument {
-            version: "0.8.0".to_string(),
+            version: "1.0.0".to_string(),
             name: Some("Source".to_string()),
             themes: None,
             variables: None,
@@ -546,7 +546,7 @@ mod tests {
         let kit = import_kit_from_document(&doc, "kit-1".to_string()).expect("kit");
         assert_eq!(kit.id, "kit-1");
         assert_eq!(kit.name, "Design System");
-        assert_eq!(kit.version, "0.8.0");
+        assert_eq!(kit.version, "1.0.0");
         assert!(!kit.built_in);
         assert_eq!(kit.components.len(), 2);
         let button = &kit.components[0];
diff --git a/crates/op-editor-core/src/variables_resolve.rs b/crates/op-editor-core/src/variables_resolve.rs
index ae2f410f4..e5d5103a4 100644
--- a/crates/op-editor-core/src/variables_resolve.rs
+++ b/crates/op-editor-core/src/variables_resolve.rs
@@ -900,7 +900,7 @@ mod tests {
         // `$ref` string and whose gap is a `$spacing` token must
         // render concrete values with NO transient editor cache.
         let mut doc = doc_from(
-            r##"{"version":"0.8.0","variables":{"brand":{"type":"color","value":"#ff8800"}},
+            r##"{"version":"1.0.0","variables":{"brand":{"type":"color","value":"#ff8800"}},
                 "children":[{"type":"frame","id":"f1","name":"f1","x":0,"y":0,"width":100,"height":50,
                   "fill":[{"type":"solid","color":"$brand"}],"layout":"vertical","gap":"$spacing-2",
                   "children":[{"type":"text","id":"t1","name":"t1","content":"$brand"}]}]}"##,
@@ -928,7 +928,7 @@ mod tests {
     #[test]
     fn replace_refs_renames_tokens_and_freezes_values_on_delete() {
         let mut doc = doc_from(
-            r##"{"version":"0.8.0","variables":{"brand":{"type":"color","value":"#ff8800"}},
+            r##"{"version":"1.0.0","variables":{"brand":{"type":"color","value":"#ff8800"}},
                 "children":[{"type":"rectangle","id":"r1","name":"r1","x":0,"y":0,"width":10,"height":10,
                   "fill":[{"type":"solid","color":"$brand"}]}]}"##,
         );
@@ -971,7 +971,7 @@ mod tests {
     #[test]
     fn effective_theme_layers_active_over_axis_defaults() {
         let doc = doc_from(
-            r#"{"version":"0.8.0","themes":{"Mode":["Light","Dark"],"Density":["Comfort","Compact"]},"children":[]}"#,
+            r#"{"version":"1.0.0","themes":{"Mode":["Light","Dark"],"Density":["Comfort","Compact"]},"children":[]}"#,
         );
         let active = Theme::from([("Mode".to_string(), "Dark".to_string())]);
         let theme = effective_theme(&doc, &active);
diff --git a/crates/op-editor-core/tests/instance_child_history.rs b/crates/op-editor-core/tests/instance_child_history.rs
index ce0caae71..b33b510fd 100644
--- a/crates/op-editor-core/tests/instance_child_history.rs
+++ b/crates/op-editor-core/tests/instance_child_history.rs
@@ -6,7 +6,7 @@ use op_editor_core::{
 
 fn state() -> EditorState {
     let doc = jian_ops_schema::load_str(
-        r##"{"version":"0.8.0","children":[
+        r##"{"version":"1.0.0","children":[
           {"type":"frame","id":"master","name":"Master","reusable":true,
            "x":0,"y":0,"width":100,"height":100,"children":[
              {"type":"rectangle","id":"surface","name":"Surface",
diff --git a/crates/op-editor-host-core/tests/codegen.rs b/crates/op-editor-host-core/tests/codegen.rs
index f9286a39c..ec3b21e0f 100644
--- a/crates/op-editor-host-core/tests/codegen.rs
+++ b/crates/op-editor-host-core/tests/codegen.rs
@@ -9,7 +9,7 @@ use op_editor_host_core::codegen::{
 
 fn two_rect_state() -> EditorState {
     let doc = jian_ops_schema::load_str(
-        r#"{"version":"0.8.0","children":[
+        r#"{"version":"1.0.0","children":[
             {"type":"rectangle","id":"n1","name":"A","x":0,"y":0,"width":10,"height":10},
             {"type":"rectangle","id":"n2","name":"B","x":20,"y":0,"width":10,"height":10}
         ]}"#,
diff --git a/crates/op-editor-ui/src/widgets/layer_panel_label_tests.rs b/crates/op-editor-ui/src/widgets/layer_panel_label_tests.rs
index bf35cd9ea..8f24c6b09 100644
--- a/crates/op-editor-ui/src/widgets/layer_panel_label_tests.rs
+++ b/crates/op-editor-ui/src/widgets/layer_panel_label_tests.rs
@@ -103,7 +103,7 @@ impl RenderBackend for LayerLabelBackend {
 
 fn state_with_layer_name(name: &str) -> EditorState {
     let source = format!(
-        r#"{{"version":"0.8.0","children":[{{"type":"rectangle","id":"n1","name":"{name}","width":10,"height":10}}]}}"#
+        r#"{{"version":"1.0.0","children":[{{"type":"rectangle","id":"n1","name":"{name}","width":10,"height":10}}]}}"#
     );
     let doc = jian_ops_schema::load_str(&source)
         .expect("layer-label fixture parses")
diff --git a/crates/op-editor-ui/src/widgets/layer_panel_tests.rs b/crates/op-editor-ui/src/widgets/layer_panel_tests.rs
index 19fc73129..01dbc09b0 100644
--- a/crates/op-editor-ui/src/widgets/layer_panel_tests.rs
+++ b/crates/op-editor-ui/src/widgets/layer_panel_tests.rs
@@ -23,7 +23,7 @@ fn state_from(src: &str) -> EditorState {
 /// Four sibling rectangles `n1..n4` in a single-page document.
 fn four_rects() -> EditorState {
     state_from(
-        r##"{ "version": "0.8.0", "children": [
+        r##"{ "version": "1.0.0", "children": [
               {"type":"rectangle","id":"n1","name":"A","width":10,"height":10},
               {"type":"rectangle","id":"n2","name":"B","width":10,"height":10},
               {"type":"rectangle","id":"n3","name":"C","width":10,"height":10},
@@ -94,7 +94,7 @@ fn whole_document_replacement_needs_owner_rotation_to_avoid_stale_rows() {
     // host's layer-panel owner never rotates on its own.
     let doc_a = four_rects(); // rows A/B/C/D
     let doc_b = state_from(
-        r##"{ "version": "0.8.0", "children": [
+        r##"{ "version": "1.0.0", "children": [
               {"type":"rectangle","id":"m1","name":"W","width":10,"height":10},
               {"type":"rectangle","id":"m2","name":"X","width":10,"height":10}
         ]}"##,
@@ -181,7 +181,7 @@ fn empty_document_yields_one_default_page_no_layers() {
 #[test]
 fn collapsed_node_hides_its_children() {
     let state = state_from(
-        r##"{ "version": "0.8.0", "children": [
+        r##"{ "version": "1.0.0", "children": [
               {"type":"frame","id":"n1","name":"Frame","width":100,"height":100,
                "children":[
                  {"type":"rectangle","id":"n2","name":"Child","width":10,"height":10}
@@ -205,7 +205,7 @@ fn unnamed_node_row_falls_back_to_kind_label() {
     // `name`. The layer row must then show the kind label (TS parity:
     // `node.name ?? node.type`) instead of a blank label.
     let state = state_from(
-        r##"{ "version": "0.8.0", "children": [
+        r##"{ "version": "1.0.0", "children": [
               {"type":"rectangle","id":"n1","width":10,"height":10},
               {"type":"frame","id":"n2","width":20,"height":20},
               {"type":"rectangle","id":"n3","name":"Hero","width":10,"height":10}
@@ -226,7 +226,7 @@ fn ghost_item_for_unnamed_node_falls_back_to_kind_label() {
     // The drag-ghost row (host paints it at the cursor) shares the same
     // name-or-kind fallback so a nameless node isn't a blank ghost.
     let state = state_from(
-        r##"{ "version": "0.8.0", "children": [
+        r##"{ "version": "1.0.0", "children": [
               {"type":"ellipse","id":"n1","width":10,"height":10}
         ]}"##,
     );
@@ -503,7 +503,7 @@ fn access_node_advertises_tree_role_and_layers_label() {
 #[test]
 fn from_document_scopes_to_active_page_only() {
     let mut state = state_from(
-        r##"{ "version": "0.8.0", "children": [], "pages": [
+        r##"{ "version": "1.0.0", "children": [], "pages": [
               {"id":"n1","name":"Page 1","children":[
                 {"type":"frame","id":"n2","name":"P1-Node","width":10,"height":10}]},
               {"id":"n3","name":"Page 2","children":[
@@ -606,7 +606,7 @@ fn drop_target_at_in_empty_area_below_rows_drops_at_end() {
 }
 
 fn nested_frame_doc(depth: usize) -> String {
-    let mut src = String::from(r#"{"version":"0.8.0","children":["#);
+    let mut src = String::from(r#"{"version":"1.0.0","children":["#);
     for i in 0..depth {
         src.push_str(&format!(
             r##"{{"type":"frame","id":"nest-{i:05}","name":"Nested Layer {i:05}","x":8,"y":6,"width":400,"height":220,"fill":[{{"type":"solid","color":"#ffffff20"}}],"stroke":{{"thickness":1,"fill":[{{"type":"solid","color":"#0088ff"}}]}},"children":["##
diff --git a/crates/op-editor-ui/src/widgets/property_panel_fill_tests.rs b/crates/op-editor-ui/src/widgets/property_panel_fill_tests.rs
index 2a8e1e5e1..13c297a7a 100644
--- a/crates/op-editor-ui/src/widgets/property_panel_fill_tests.rs
+++ b/crates/op-editor-ui/src/widgets/property_panel_fill_tests.rs
@@ -20,7 +20,7 @@ fn panel_rect() -> Rect {
 
 fn selected_rect_state() -> op_editor_core::EditorState {
     let mut state = state_from(
-        r##"{ "version": "0.8.0", "children": [
+        r##"{ "version": "1.0.0", "children": [
               {"type":"rectangle","id":"rect","name":"Rect",
                "x":40,"y":40,"width":160,"height":100,
                "fill":[{"type":"solid","color":"#112233"}]}
@@ -32,7 +32,7 @@ fn selected_rect_state() -> op_editor_core::EditorState {
 
 fn selected_three_fill_state() -> op_editor_core::EditorState {
     let mut state = state_from(
-        r##"{ "version": "0.8.0", "children": [
+        r##"{ "version": "1.0.0", "children": [
               {"type":"rectangle","id":"rect","name":"Rect",
                "x":40,"y":40,"width":160,"height":100,
                "fill":[
@@ -91,7 +91,7 @@ fn fill_type_picker_hit_uses_shared_outside_protocol() {
 fn fill_type_picker_hit_anchors_to_instance_toggle_action_rect() {
     let mut state = state_from(
         r##"{
-          "version":"0.8.0",
+          "version":"1.0.0",
           "children":[
             {"type":"frame","id":"card","name":"Card","reusable":true,
              "x":0,"y":0,"width":"fill_container","height":"fill_container",
diff --git a/crates/op-editor-ui/src/widgets/property_panel_icon_tests.rs b/crates/op-editor-ui/src/widgets/property_panel_icon_tests.rs
index 6294d6a2b..c3c37ea80 100644
--- a/crates/op-editor-ui/src/widgets/property_panel_icon_tests.rs
+++ b/crates/op-editor-ui/src/widgets/property_panel_icon_tests.rs
@@ -94,7 +94,7 @@ fn text_size_section_does_not_emit_clip_content_action() {
 #[test]
 fn icon_font_selection_exposes_icon_picker_action() {
     let mut state = state_from(
-        r##"{ "version": "0.8.0", "children": [
+        r##"{ "version": "1.0.0", "children": [
               {"type":"icon_font","id":"icon","name":"Search",
                "x":40,"y":40,"width":24,"height":24,
                "iconFontName":"search","iconFontFamily":"lucide"}
diff --git a/crates/op-editor-ui/src/widgets/property_panel_image_fill_tests.rs b/crates/op-editor-ui/src/widgets/property_panel_image_fill_tests.rs
index 0f7bfc2bd..776e46bd3 100644
--- a/crates/op-editor-ui/src/widgets/property_panel_image_fill_tests.rs
+++ b/crates/op-editor-ui/src/widgets/property_panel_image_fill_tests.rs
@@ -12,7 +12,7 @@ use op_editor_core::NodeId;
 
 fn image_fill_state_with_url(url: &str) -> op_editor_core::EditorState {
     let mut state = state_from(&format!(
-        r##"{{ "version": "0.8.0", "children": [
+        r##"{{ "version": "1.0.0", "children": [
               {{"type":"rectangle","id":"n60","name":"Photo fill",
                "x":40,"y":40,"width":180,"height":120,
                "fill":[{{"type":"image","url":"{}","mode":"fill",
diff --git a/crates/op-editor-ui/src/widgets/property_panel_instance_tests.rs b/crates/op-editor-ui/src/widgets/property_panel_instance_tests.rs
index 4172a38d1..04b960438 100644
--- a/crates/op-editor-ui/src/widgets/property_panel_instance_tests.rs
+++ b/crates/op-editor-ui/src/widgets/property_panel_instance_tests.rs
@@ -12,7 +12,7 @@ use crate::{Point2D, Rect};
 use op_editor_core::NodeId;
 
 const COMPONENT_DOC: &str = r##"{
-  "version":"0.8.0",
+  "version":"1.0.0",
   "children":[
     {"type":"frame","id":"card","name":"Card","reusable":true,"x":0,"y":0,"width":200,"height":100,
      "fill":[{"type":"solid","color":"#222222"}],
@@ -80,7 +80,7 @@ fn reusable_component_snapshot_flags_is_reusable() {
 fn registered_group_component_snapshot_flags_is_reusable() {
     let mut state = state_from(
         r##"{
-          "version":"0.8.0",
+          "version":"1.0.0",
           "children":[
             {"type":"group","id":"text_group","name":"Text Group",
              "children":[{"type":"text","id":"label","name":"Label","content":"Hello"}]}
diff --git a/crates/op-editor-ui/src/widgets/property_panel_multi_select_tests.rs b/crates/op-editor-ui/src/widgets/property_panel_multi_select_tests.rs
index 11189b4d3..d4405807d 100644
--- a/crates/op-editor-ui/src/widgets/property_panel_multi_select_tests.rs
+++ b/crates/op-editor-ui/src/widgets/property_panel_multi_select_tests.rs
@@ -78,7 +78,7 @@ fn multi_select_caps_keep_size_hide_fill_and_stroke() {
 fn multi_select_panel_shows_even_when_all_zero_size() {
     // Symmetry with single-select: a 0x0 node still shows the panel.
     let mut state = state_from(
-        r##"{ "version": "0.8.0", "children": [
+        r##"{ "version": "1.0.0", "children": [
               {"type":"rectangle","id":"n50","name":"A"},
               {"type":"rectangle","id":"n51","name":"B"}
         ]}"##,
@@ -96,7 +96,7 @@ fn multi_select_panel_shows_even_when_all_zero_size() {
 fn padding_pin_does_not_leak_into_a_different_selection() {
     use op_editor_core::PaddingEditMode;
     let mut state = state_from(
-        r#"{"version":"0.8.0","children":[
+        r#"{"version":"1.0.0","children":[
           {"type":"frame","id":"a","name":"A","x":0,"y":0,"width":100,"height":100},
           {"type":"frame","id":"b","name":"B","x":200,"y":0,"width":100,"height":100}
         ]}"#,
diff --git a/crates/op-editor-ui/src/widgets/property_panel_stroke_tests.rs b/crates/op-editor-ui/src/widgets/property_panel_stroke_tests.rs
index 751726822..4838ed3ac 100644
--- a/crates/op-editor-ui/src/widgets/property_panel_stroke_tests.rs
+++ b/crates/op-editor-ui/src/widgets/property_panel_stroke_tests.rs
@@ -13,7 +13,7 @@ fn panel_rect() -> Rect {
 
 fn sided_stroke_state() -> op_editor_core::EditorState {
     let mut state = state_from(
-        r##"{ "version": "0.8.0", "children": [
+        r##"{ "version": "1.0.0", "children": [
               {"type":"rectangle","id":"rect","name":"Rect",
                "x":40,"y":40,"width":160,"height":100,
                "fill":[{"type":"solid","color":"#ffffff"}],
diff --git a/crates/op-editor-ui/src/widgets/property_panel_tests.rs b/crates/op-editor-ui/src/widgets/property_panel_tests.rs
index 90b89b2b0..7931098dd 100644
--- a/crates/op-editor-ui/src/widgets/property_panel_tests.rs
+++ b/crates/op-editor-ui/src/widgets/property_panel_tests.rs
@@ -63,7 +63,7 @@ fn for_selection_with_real_node_builds_snapshot() {
 #[test]
 fn scene_aware_panel_reports_resolved_fill_and_hug_dimensions() {
     let mut state = state_from(
-        r##"{ "version": "0.8.0", "children": [
+        r##"{ "version": "1.0.0", "children": [
               {"type":"frame","id":"ff","name":"Frame",
                "width":"fill_container","height":"fit_content","children":[]}
         ]}"##,
@@ -90,7 +90,7 @@ fn scene_aware_panel_reports_resolved_fill_and_hug_dimensions() {
 #[test]
 fn scene_aware_panel_keeps_unbounded_group_aggregate_dimensions() {
     let mut state = state_from(
-        r##"{ "version": "0.8.0", "children": [
+        r##"{ "version": "1.0.0", "children": [
               {"type":"group","id":"g","name":"Group","children":[
                 {"type":"rectangle","id":"child","x":10,"y":20,
                  "width":70,"height":30}
@@ -216,7 +216,7 @@ fn group_snapshot_aggregates_child_bounds() {
 #[test]
 fn polygon_selection_exposes_sides_layer_input() {
     let mut state = state_from(
-        r##"{ "version": "0.8.0", "children": [
+        r##"{ "version": "1.0.0", "children": [
               {"type":"polygon","id":"poly","name":"Hex",
                "x":40,"y":40,"width":120,"height":120,
                "polygonCount":6}
@@ -250,7 +250,7 @@ fn polygon_selection_exposes_sides_layer_input() {
 #[test]
 fn ellipse_selection_exposes_arc_layer_inputs() {
     let mut state = state_from(
-        r##"{ "version": "0.8.0", "children": [
+        r##"{ "version": "1.0.0", "children": [
               {"type":"ellipse","id":"ell","name":"Arc",
                "x":40,"y":40,"width":120,"height":100,
                "startAngle":30,"sweepAngle":270,"innerRadius":0.25}
@@ -387,7 +387,7 @@ fn hit_test_action_export_section_returns_picker_toggles() {
 #[test]
 fn color_variables_add_fill_and_stroke_binding_buttons() {
     let mut state = state_from(
-        r##"{ "version": "0.8.0", "children": [
+        r##"{ "version": "1.0.0", "children": [
               {"type":"rectangle","id":"rect","name":"Rect",
                "x":40,"y":40,"width":160,"height":100,
                "fill":[{"type":"solid","color":"#ffffff"}],
@@ -439,7 +439,7 @@ fn color_variables_add_fill_and_stroke_binding_buttons() {
 #[test]
 fn color_variable_picker_emits_bind_and_unbind_rows() {
     let mut state = state_from(
-        r##"{ "version": "0.8.0", "children": [
+        r##"{ "version": "1.0.0", "children": [
               {"type":"rectangle","id":"rect","name":"Rect",
                "x":40,"y":40,"width":160,"height":100,
                "fill":[{"type":"solid","color":"#ffffff"}],
@@ -511,7 +511,7 @@ fn fill_width_keeps_both_numeric_inputs_visible_and_hittable() {
     use op_editor_core::PropertyFocus;
     let fill = {
         let mut s = state_from(
-            r##"{ "version": "0.8.0", "children": [
+            r##"{ "version": "1.0.0", "children": [
                   {"type":"frame","id":"ff","name":"Frame",
                    "x":40,"y":40,"width":"fill_container","height":240,
                    "layout":"vertical","children":[]}
@@ -549,7 +549,7 @@ fn both_dimensions_fill_keep_the_size_input_row() {
     };
     let panel_for = |w: &str, h: &str| {
         let json = format!(
-            r##"{{ "version": "0.8.0", "children": [
+            r##"{{ "version": "1.0.0", "children": [
                   {{"type":"frame","id":"ff","name":"Frame",
                    "x":40,"y":40,"width":{w},"height":{h},
                    "layout":"vertical","children":[]}}
@@ -599,7 +599,7 @@ fn both_dimensions_fill_keep_the_size_input_row() {
 fn fill_and_hug_inputs_paint_snapshot_size_and_numeric_commit_makes_fixed() {
     use op_editor_core::PropertyFocus;
     let mut state = state_from(
-        r##"{ "version": "0.8.0", "children": [
+        r##"{ "version": "1.0.0", "children": [
               {"type":"frame","id":"ff","name":"Frame",
                "x":40,"y":40,"width":"fill_container","height":"fit_content",
                "layout":"vertical","children":[
@@ -656,7 +656,7 @@ fn padding_mode_derives_from_values_and_drives_input_count() {
     };
     let padding_rects = |padding: &str| {
         let json = format!(
-            r##"{{ "version": "0.8.0", "children": [
+            r##"{{ "version": "1.0.0", "children": [
                   {{"type":"frame","id":"f","name":"F","x":0,"y":0,
                    "width":300,"height":200,"layout":"vertical",
                    "padding":{padding},"children":[]}}
@@ -691,7 +691,7 @@ fn padding_mode_derives_from_values_and_drives_input_count() {
 #[test]
 fn flex_advanced_rows_do_not_overlap_gap_modes() {
     let mut state = state_from(
-        r##"{ "version": "0.8.0", "children": [
+        r##"{ "version": "1.0.0", "children": [
               {"type":"frame","id":"f","name":"Frame",
                "x":40,"y":40,"width":360,"height":240,
                "layout":"horizontal","gap":0,
diff --git a/crates/op-editor-ui/src/widgets/property_panel_widget_tests.rs b/crates/op-editor-ui/src/widgets/property_panel_widget_tests.rs
index cb1c8ddb7..f42fbb301 100644
--- a/crates/op-editor-ui/src/widgets/property_panel_widget_tests.rs
+++ b/crates/op-editor-ui/src/widgets/property_panel_widget_tests.rs
@@ -23,7 +23,7 @@ fn widget_state(src: &str) -> op_editor_core::EditorState {
 
 #[test]
 fn widget_section_hidden_unless_experimental_enabled() {
-    let src = r##"{ "version": "0.8.0", "children": [
+    let src = r##"{ "version": "1.0.0", "children": [
               {"type":"text_input","id":"email","name":"Email",
                "x":24,"y":32,"width":220,"height":40,"placeholder":"Email"}
         ]}"##;
@@ -50,7 +50,7 @@ fn widget_section_hidden_unless_experimental_enabled() {
 #[test]
 fn text_input_selection_exposes_widget_text_rows() {
     let mut state = widget_state(
-        r##"{ "version": "0.8.0", "children": [
+        r##"{ "version": "1.0.0", "children": [
               {"type":"text_input","id":"email","name":"Email",
                "x":24,"y":32,"width":220,"height":40,
                "placeholder":"Email address","value":"kai@example.com"}
@@ -78,7 +78,7 @@ fn text_input_selection_exposes_widget_text_rows() {
 #[test]
 fn property_panel_text_input_fields_expose_icon_and_bind_rows() {
     let mut state = widget_state(
-        r##"{ "version": "0.8.0", "children": [
+        r##"{ "version": "1.0.0", "children": [
               {"type":"text_input","id":"email","name":"Email",
                "x":24,"y":32,"width":220,"height":40,
                "leadingIcon":"mail","trailingIcon":"eye",
@@ -113,7 +113,7 @@ fn checkbox_selection_hides_icon_and_bind_rows() {
     // Icon + bind editing is Phase-1 scoped to the input kinds; a
     // Checkbox widget shows neither.
     let mut state = widget_state(
-        r##"{ "version": "0.8.0", "children": [
+        r##"{ "version": "1.0.0", "children": [
               {"type":"checkbox","id":"cb","name":"Agree","x":0,"y":0,"width":18,"height":18,
                "label":"Accept","checked":false}
         ]}"##,
@@ -133,7 +133,7 @@ fn checkbox_selection_hides_icon_and_bind_rows() {
 #[test]
 fn slider_selection_exposes_widget_range_rows() {
     let mut state = widget_state(
-        r##"{ "version": "0.8.0", "children": [
+        r##"{ "version": "1.0.0", "children": [
               {"type":"slider","id":"volume","name":"Volume",
                "x":24,"y":32,"width":220,"height":24,
                "min":0,"max":100,"step":5,"value":50}
@@ -165,7 +165,7 @@ fn slider_selection_exposes_widget_range_rows() {
 #[test]
 fn frame_selection_hides_widget_section() {
     let mut state = widget_state(
-        r##"{ "version": "0.8.0", "children": [
+        r##"{ "version": "1.0.0", "children": [
               {"type":"frame","id":"f1","name":"Frame","x":0,"y":0,"width":200,"height":100}
         ]}"##,
     );
@@ -188,7 +188,7 @@ fn frame_selection_hides_widget_section() {
 fn checkbox_selection_emits_toggle_checked_action() {
     use super::property_panel::PropertyPanelAction;
     let mut state = widget_state(
-        r##"{ "version": "0.8.0", "children": [
+        r##"{ "version": "1.0.0", "children": [
               {"type":"checkbox","id":"cb","name":"Agree","x":0,"y":0,"width":18,"height":18,
                "label":"Accept","checked":false}
         ]}"##,
@@ -214,7 +214,7 @@ fn checkbox_selection_emits_toggle_checked_action() {
 fn committing_placeholder_updates_text_input_node() {
     use jian_ops_schema::node::PenNode;
     let mut state = widget_state(
-        r##"{ "version": "0.8.0", "children": [
+        r##"{ "version": "1.0.0", "children": [
               {"type":"text_input","id":"email","name":"Email",
                "x":0,"y":0,"width":220,"height":40,"placeholder":"Email"}
         ]}"##,
@@ -235,7 +235,7 @@ fn committing_placeholder_updates_text_input_node() {
 fn committing_slider_max_updates_node() {
     use jian_ops_schema::node::PenNode;
     let mut state = widget_state(
-        r##"{ "version": "0.8.0", "children": [
+        r##"{ "version": "1.0.0", "children": [
               {"type":"slider","id":"sl","name":"Vol","x":0,"y":0,"width":220,"height":24,
                "min":0,"max":100,"step":1,"value":50}
         ]}"##,
diff --git a/crates/op-host-desktop/src/persistence.rs b/crates/op-host-desktop/src/persistence.rs
index 56be65d67..51cf174aa 100644
--- a/crates/op-host-desktop/src/persistence.rs
+++ b/crates/op-host-desktop/src/persistence.rs
@@ -647,7 +647,7 @@ mod tests {
         let mut host = WidgetHostNative::new();
         let doc = jian_ops_schema::load_str(
             r#"{
-              "version":"0.8.0",
+              "version":"1.0.0",
               "children":[
                 {"type":"frame","id":"left","name":"Left","x":900,"y":120,"width":240,"height":320},
                 {"type":"frame","id":"right","name":"Right","x":1320,"y":220,"width":260,"height":280}
@@ -695,7 +695,7 @@ mod tests {
         let mut host = WidgetHostNative::new();
         let doc = jian_ops_schema::load_str(
             r#"{
-              "version":"0.8.0",
+              "version":"1.0.0",
               "children":[{
                 "type":"frame","id":"root","name":"Explore",
                 "x":12,"y":24,"width":390,"height":"fit_content",
diff --git a/crates/op-host-native/src/preview/tests_device_frame.rs b/crates/op-host-native/src/preview/tests_device_frame.rs
index e631366da..5df7c0782 100644
--- a/crates/op-host-native/src/preview/tests_device_frame.rs
+++ b/crates/op-host-native/src/preview/tests_device_frame.rs
@@ -24,7 +24,7 @@ fn enter(doc: &jian_ops_schema::PenDocument) -> PreviewSession {
 fn phone_doc_with_bottom_nav(nav_extra: &str) -> jian_ops_schema::PenDocument {
     load(&format!(
         r##"{{
-        "version": "0.8.0",
+        "version": "1.0.0",
         "children": [
             {{ "type": "frame", "id": "screen", "x": 0, "y": 0,
               "width": 390, "height": 800,
@@ -83,7 +83,7 @@ fn framed_root_app_mode_returns_mounted_screen_root() {
 fn zero_height_semantic_nav_is_rejected() {
     let doc = load(
         r##"{
-        "version": "0.8.0",
+        "version": "1.0.0",
         "children": [
             { "type": "frame", "id": "screen", "x": 0, "y": 0,
               "width": 390, "height": 800,
@@ -102,7 +102,7 @@ fn zero_height_semantic_nav_is_rejected() {
 
 #[test]
 fn framed_root_none_for_empty_page() {
-    let doc = load(r##"{ "version": "0.8.0", "children": [] }"##);
+    let doc = load(r##"{ "version": "1.0.0", "children": [] }"##);
     let session = enter(&doc);
     assert!(session.framed_root().is_none());
 }
@@ -127,7 +127,7 @@ fn desktop_never_pins() {
 fn semantic_nav_pins_even_when_narrow() {
     let doc = load(
         r##"{
-        "version": "0.8.0",
+        "version": "1.0.0",
         "children": [
             { "type": "frame", "id": "screen", "x": 0, "y": 0,
               "width": 390, "height": 800,
@@ -150,7 +150,7 @@ fn semantic_nav_pins_even_when_narrow() {
 fn top_nav_with_semantic_role_does_not_pin() {
     let doc = load(
         r##"{
-        "version": "0.8.0",
+        "version": "1.0.0",
         "children": [
             { "type": "frame", "id": "screen", "x": 0, "y": 0,
               "width": 390, "height": 800,
@@ -179,7 +179,7 @@ fn hidden_nav_is_rejected() {
 fn heuristic_rejects_each_missing_gate() {
     let doc = load(
         r##"{
-        "version": "0.8.0",
+        "version": "1.0.0",
         "children": [
             { "type": "frame", "id": "screen", "x": 0, "y": 0,
               "width": 390, "height": 800,
@@ -196,7 +196,7 @@ fn heuristic_rejects_each_missing_gate() {
 
     let doc = load(
         r##"{
-        "version": "0.8.0",
+        "version": "1.0.0",
         "children": [
             { "type": "frame", "id": "screen", "x": 0, "y": 0,
               "width": 390, "height": 800,
@@ -213,7 +213,7 @@ fn heuristic_rejects_each_missing_gate() {
 
     let doc = load(
         r##"{
-        "version": "0.8.0",
+        "version": "1.0.0",
         "children": [
             { "type": "frame", "id": "screen", "x": 0, "y": 0,
               "width": 390, "height": 800,
@@ -233,7 +233,7 @@ fn heuristic_rejects_each_missing_gate() {
 fn oversized_or_hidden_candidates_are_rejected() {
     let doc = load(
         r##"{
-        "version": "0.8.0",
+        "version": "1.0.0",
         "children": [
             { "type": "frame", "id": "screen", "x": 0, "y": 0,
               "width": 390, "height": 800,
diff --git a/crates/op-host-native/src/preview/tests_geometry_parity.rs b/crates/op-host-native/src/preview/tests_geometry_parity.rs
index bf1616ca3..dcbecddd2 100644
--- a/crates/op-host-native/src/preview/tests_geometry_parity.rs
+++ b/crates/op-host-native/src/preview/tests_geometry_parity.rs
@@ -79,7 +79,7 @@ fn assert_same_bounds(design: &LayoutScene, preview: &LayoutScene, id: &str) {
 fn preserve_geometry_doc() -> jian_ops_schema::PenDocument {
     load(
         r##"{
-        "version": "0.8.0",
+        "version": "1.0.0",
         "children": [
             { "type": "frame", "id": "root", "x": 0, "y": 0,
               "width": 400, "height": 300,
@@ -125,7 +125,7 @@ fn preview_matches_design_for_preserve_geometry_doc() {
 fn role_frame_doc() -> jian_ops_schema::PenDocument {
     load(
         r##"{
-        "version": "0.8.0",
+        "version": "1.0.0",
         "children": [
             { "type": "frame", "id": "root", "x": 0, "y": 0,
               "width": 400, "height": 600,
@@ -237,7 +237,7 @@ fn preview_matches_design_for_free_layout_doc() {
     let _guard = crate::font_registry_test_support::lock();
     let doc = load(
         r##"{
-        "version": "0.8.0",
+        "version": "1.0.0",
         "children": [
             { "type": "frame", "id": "root", "x": 40, "y": 40,
               "width": 300, "height": 200,
diff --git a/crates/op-host-native/src/widget_host/agent_settings_tests.rs b/crates/op-host-native/src/widget_host/agent_settings_tests.rs
index a1789c3a5..e1ef7bc48 100644
--- a/crates/op-host-native/src/widget_host/agent_settings_tests.rs
+++ b/crates/op-host-native/src/widget_host/agent_settings_tests.rs
@@ -633,7 +633,7 @@ fn system_experimental_switch_toggles_preference() {
 fn disabling_experimental_exits_active_preview() {
     let mut host = WidgetHostNative::new();
     let doc = jian_ops_schema::load_str(
-        r#"{"version":"0.8.0","children":[
+        r#"{"version":"1.0.0","children":[
             {"type":"frame","id":"root","name":"Root","x":0,"y":0,"width":200,"height":200,
              "children":[
                {"type":"rectangle","id":"r","name":"R","x":10,"y":10,"width":50,"height":50}
diff --git a/crates/op-host-native/src/widget_host/blur_inputs_tests.rs b/crates/op-host-native/src/widget_host/blur_inputs_tests.rs
index 2caba8148..cc1752680 100644
--- a/crates/op-host-native/src/widget_host/blur_inputs_tests.rs
+++ b/crates/op-host-native/src/widget_host/blur_inputs_tests.rs
@@ -14,7 +14,7 @@ use op_editor_core::{own_bounds, NodeId};
 const VW: f32 = 1200.0;
 const VH: f32 = 800.0;
 
-const ONE_RECT: &str = r#"{"version":"0.8.0","children":[{"type":"rectangle","id":"n1","name":"n1","x":0,"y":0,"width":100,"height":50}]}"#;
+const ONE_RECT: &str = r#"{"version":"1.0.0","children":[{"type":"rectangle","id":"n1","name":"n1","x":0,"y":0,"width":100,"height":50}]}"#;
 
 /// Seed a host's `editor_state` from a canonical `.op` JSON snippet.
 fn seed(host: &mut WidgetHostNative, json: &str) {
diff --git a/crates/op-host-native/src/widget_host/canvas_select_drag_tests.rs b/crates/op-host-native/src/widget_host/canvas_select_drag_tests.rs
index c141d3fc0..365b3813f 100644
--- a/crates/op-host-native/src/widget_host/canvas_select_drag_tests.rs
+++ b/crates/op-host-native/src/widget_host/canvas_select_drag_tests.rs
@@ -22,7 +22,7 @@ fn seed(host: &mut WidgetHostNative, json: &str) {
 /// `card` frame (400, 60, 200×200) with a nested `leaf` rect at
 /// relative (40, 40) — leaf renders at doc (440..490, 100..150) —
 /// plus a far-away top-level `other` rect at (650, 60, 40×40).
-const NESTED: &str = r#"{"version":"0.8.0","children":[
+const NESTED: &str = r#"{"version":"1.0.0","children":[
   {"type":"frame","id":"card","name":"Card","x":400,"y":60,"width":200,"height":200,
    "children":[
      {"type":"rectangle","id":"leaf","name":"Leaf","x":40,"y":40,"width":50,"height":50}
@@ -33,7 +33,7 @@ const NESTED: &str = r#"{"version":"0.8.0","children":[
 /// Four selection depths at the shared probe point: root > l1 > l2 > l3.
 /// Every nested node contains doc (470, 130), while `other` remains available
 /// for multi-selection and outside-scope tests.
-const FOUR_LEVEL: &str = r#"{"version":"0.8.0","children":[
+const FOUR_LEVEL: &str = r#"{"version":"1.0.0","children":[
   {"type":"frame","id":"root","name":"Root","x":400,"y":60,"width":240,"height":240,
    "children":[
      {"type":"frame","id":"l1","name":"Level 1","x":20,"y":20,"width":200,"height":200,
@@ -231,7 +231,7 @@ fn overlapping_rect_stack(count: usize) -> String {
         })
         .collect::<Vec<_>>()
         .join(",");
-    format!(r#"{{"version":"0.8.0","children":[{children}]}}"#)
+    format!(r#"{{"version":"1.0.0","children":[{children}]}}"#)
 }
 
 #[test]
@@ -257,7 +257,7 @@ fn promotion_inside_entered_container_stops_at_its_child() {
     let mut host = WidgetHostNative::new();
     seed(
         &mut host,
-        r#"{"version":"0.8.0","children":[
+        r#"{"version":"1.0.0","children":[
           {"type":"frame","id":"card","name":"Card","x":400,"y":60,"width":200,"height":200,
            "children":[
              {"type":"frame","id":"inner","name":"Inner","x":20,"y":20,"width":150,"height":150,
@@ -282,7 +282,7 @@ fn promotion_inside_entered_container_stops_at_its_child() {
 
 /// Vertical auto-layout stack at (400, 60) with three 80×40 flow
 /// children (gap 8): a 60..100, b 108..148, c 156..196 in doc y.
-const VSTACK: &str = r#"{"version":"0.8.0","children":[
+const VSTACK: &str = r#"{"version":"1.0.0","children":[
   {"type":"frame","id":"stack","name":"Stack","x":400,"y":60,"width":200,"height":300,
    "layout":"vertical","gap":8,
    "children":[
@@ -292,7 +292,7 @@ const VSTACK: &str = r#"{"version":"0.8.0","children":[
    ]}
 ]}"#;
 
-const HSTACK: &str = r#"{"version":"0.8.0","children":[
+const HSTACK: &str = r#"{"version":"1.0.0","children":[
   {"type":"frame","id":"row","name":"Row","x":400,"y":60,"width":360,"height":120,
    "layout":"horizontal","gap":8,
    "children":[
@@ -541,7 +541,7 @@ fn child_dragged_into_other_layout_uses_cross_container_placeholder() {
     let mut host = WidgetHostNative::new();
     seed(
         &mut host,
-        r#"{"version":"0.8.0","children":[
+        r#"{"version":"1.0.0","children":[
           {"type":"frame","id":"src","name":"Source","x":400,"y":60,"width":200,"height":120,
            "children":[
              {"type":"rectangle","id":"box","name":"Box","x":20,"y":20,"width":50,"height":50}
@@ -601,7 +601,7 @@ fn text_dragged_fully_outside_parent_reparents_to_page_root() {
     let mut host = WidgetHostNative::new();
     seed(
         &mut host,
-        r#"{"version":"0.8.0","children":[
+        r#"{"version":"1.0.0","children":[
           {"type":"frame","id":"card","name":"Card","x":400,"y":60,"width":200,"height":100,
            "children":[
              {"type":"text","id":"label","name":"Label","x":20,"y":20,
@@ -638,7 +638,7 @@ fn shape_dragged_outside_parent_becomes_page_root() {
     let mut host = WidgetHostNative::new();
     seed(
         &mut host,
-        r#"{"version":"0.8.0","children":[
+        r#"{"version":"1.0.0","children":[
           {"type":"frame","id":"card","name":"Card","x":400,"y":60,"width":200,"height":100,
            "children":[
              {"type":"rectangle","id":"box","name":"Box","x":20,"y":20,"width":50,"height":50}
@@ -669,7 +669,7 @@ fn shape_dragged_into_sibling_frame_reparents_to_that_frame() {
     let mut host = WidgetHostNative::new();
     seed(
         &mut host,
-        r#"{"version":"0.8.0","children":[
+        r#"{"version":"1.0.0","children":[
           {"type":"frame","id":"src","name":"Source","x":400,"y":60,"width":200,"height":120,
            "children":[
              {"type":"rectangle","id":"box","name":"Box","x":20,"y":20,"width":50,"height":50}
@@ -710,7 +710,7 @@ fn root_shape_dragged_into_frame_becomes_that_frame_child() {
     let mut host = WidgetHostNative::new();
     seed(
         &mut host,
-        r#"{"version":"0.8.0","children":[
+        r#"{"version":"1.0.0","children":[
           {"type":"rectangle","id":"box","name":"Box","x":400,"y":80,"width":50,"height":50},
           {"type":"frame","id":"target","name":"Target","x":700,"y":60,"width":220,"height":160,
            "children":[]}
diff --git a/crates/op-host-native/src/widget_host/ime.rs b/crates/op-host-native/src/widget_host/ime.rs
index 43c64671d..5de6be518 100644
--- a/crates/op-host-native/src/widget_host/ime.rs
+++ b/crates/op-host-native/src/widget_host/ime.rs
@@ -107,7 +107,7 @@ mod tests {
     use crate::WidgetHostNative;
     use op_editor_core::NodeId;
 
-    const TEXT_DOC: &str = r#"{"version":"0.8.0","children":[
+    const TEXT_DOC: &str = r#"{"version":"1.0.0","children":[
       {"type":"text","id":"t1","name":"Label","x":0,"y":0,"width":100,"height":40,
        "content":"hello","fontSize":20}
     ]}"#;
diff --git a/crates/op-host-native/src/widget_host/input_drag_tests.rs b/crates/op-host-native/src/widget_host/input_drag_tests.rs
index f44b58cd8..621fc3723 100644
--- a/crates/op-host-native/src/widget_host/input_drag_tests.rs
+++ b/crates/op-host-native/src/widget_host/input_drag_tests.rs
@@ -24,7 +24,7 @@ fn three_rects(boxes: [(f64, f64, f64, f64); 3], ids: [&str; 3]) -> String {
         )
     };
     format!(
-        r#"{{"version":"0.8.0","children":[{},{},{}]}}"#,
+        r#"{{"version":"1.0.0","children":[{},{},{}]}}"#,
         node(ids[0], boxes[0]),
         node(ids[1], boxes[1]),
         node(ids[2], boxes[2]),
@@ -36,7 +36,7 @@ fn bottom_right_handle_resizes_only_selected_container() {
     let mut host = WidgetHostNative::new();
     seed(
         &mut host,
-        r#"{"version":"0.8.0","children":[{
+        r#"{"version":"1.0.0","children":[{
           "type":"frame","id":"frame","name":"frame","x":100,"y":80,
           "width":200,"height":160,"layout":"none","children":[
             {"type":"rectangle","id":"child","name":"child","x":12,"y":18,
@@ -91,7 +91,7 @@ fn edge_handle_freezes_only_its_axis_and_preserves_descendants() {
         let mut host = WidgetHostNative::new();
         seed(
             &mut host,
-            r#"{"version":"0.8.0","children":[{
+            r#"{"version":"1.0.0","children":[{
               "type":"frame","id":"frame","name":"frame","x":100,"y":80,
               "width":"fill_container","height":"fit_content","layout":"vertical",
               "children":[
@@ -138,7 +138,7 @@ fn fill_child_reflows_to_resized_parent_without_authored_mutation() {
     let mut host = WidgetHostNative::new();
     seed(
         &mut host,
-        r#"{"version":"0.8.0","children":[{
+        r#"{"version":"1.0.0","children":[{
           "type":"frame","id":"frame","name":"frame","x":100,"y":80,
           "width":200,"height":160,"layout":"vertical","children":[
             {"type":"rectangle","id":"child","name":"child",
@@ -186,7 +186,7 @@ fn anchor_press_release_without_motion_does_not_push_history() {
     let mut host = WidgetHostNative::new();
     seed(
         &mut host,
-        r#"{"version":"0.8.0","children":[
+        r#"{"version":"1.0.0","children":[
           {"type":"path","id":"n60","name":"p","x":0,"y":0,
            "anchors":[{"x":0,"y":0},{"x":50,"y":25}]}
         ]}"#,
@@ -224,7 +224,7 @@ fn anchor_drag_back_to_start_lands_at_start() {
     let mut host = WidgetHostNative::new();
     seed(
         &mut host,
-        r#"{"version":"0.8.0","children":[
+        r#"{"version":"1.0.0","children":[
           {"type":"path","id":"n60","name":"p","x":0,"y":0,
            "anchors":[{"x":0,"y":0},{"x":50,"y":25}]}
         ]}"#,
@@ -266,7 +266,7 @@ fn anchor_drag_with_motion_pushes_one_history_entry() {
     let mut host = WidgetHostNative::new();
     seed(
         &mut host,
-        r#"{"version":"0.8.0","children":[
+        r#"{"version":"1.0.0","children":[
           {"type":"path","id":"n60","name":"p","x":0,"y":0,
            "anchors":[{"x":0,"y":0},{"x":50,"y":25}]}
         ]}"#,
@@ -349,7 +349,7 @@ fn node_drag_snap_does_not_trap_incremental_cursor_motion() {
     let mut host = WidgetHostNative::new();
     seed(
         &mut host,
-        r#"{"version":"0.8.0","children":[
+        r#"{"version":"1.0.0","children":[
           {"type":"rectangle","id":"moving","name":"moving","x":90,"y":0,"width":10,"height":10},
           {"type":"rectangle","id":"guide","name":"guide","x":105,"y":100,"width":100,"height":20}
         ]}"#,
@@ -396,7 +396,7 @@ fn node_drag_skips_smart_guides_for_large_documents() {
             1000 + i * 10
         ));
     }
-    let doc = format!(r#"{{"version":"0.8.0","children":[{}]}}"#, nodes.join(","));
+    let doc = format!(r#"{{"version":"1.0.0","children":[{}]}}"#, nodes.join(","));
     let mut host = WidgetHostNative::new();
     seed(&mut host, &doc);
     host.editor_state_mut()
@@ -428,7 +428,7 @@ fn node_drag_keeps_flex_child_in_layout_flow() {
     let mut host = WidgetHostNative::new();
     seed(
         &mut host,
-        r#"{"version":"0.8.0","children":[{
+        r#"{"version":"1.0.0","children":[{
           "type":"frame","id":"frame","name":"frame","x":100,"y":100,
           "width":200,"height":200,"layout":"vertical","gap":8,
           "children":[
@@ -478,7 +478,7 @@ fn dragging_a_selection_with_a_locked_node_does_not_drift_it_in_the_scene() {
     let mut host = WidgetHostNative::new();
     seed(
         &mut host,
-        r#"{"version":"0.8.0","children":[
+        r#"{"version":"1.0.0","children":[
           {"type":"rectangle","id":"free","name":"free","x":100,"y":100,"width":80,"height":60},
           {"type":"rectangle","id":"locked","name":"locked","x":600,"y":100,"width":80,"height":60,"locked":true}
         ]}"#,
@@ -525,7 +525,7 @@ fn incremental_drag_then_doc_restored_to_cached_value_rebuilds_the_scene() {
     let mut host = WidgetHostNative::new();
     seed(
         &mut host,
-        r#"{"version":"0.8.0","children":[
+        r#"{"version":"1.0.0","children":[
           {"type":"rectangle","id":"free","name":"free","x":100,"y":100,"width":80,"height":60}
         ]}"#,
     );
diff --git a/crates/op-host-native/src/widget_host/input_tests.rs b/crates/op-host-native/src/widget_host/input_tests.rs
index ef9392554..6a5688b05 100644
--- a/crates/op-host-native/src/widget_host/input_tests.rs
+++ b/crates/op-host-native/src/widget_host/input_tests.rs
@@ -47,7 +47,7 @@ fn layer_hover_does_not_refresh_stale_canvas_layout_scene() {
     let mut host = WidgetHostNative::new();
     seed(
         &mut host,
-        r#"{"version":"0.8.0","children":[{"type":"rectangle","id":"n1","name":"n1","x":0,"y":0,"width":100,"height":50}]}"#,
+        r#"{"version":"1.0.0","children":[{"type":"rectangle","id":"n1","name":"n1","x":0,"y":0,"width":100,"height":50}]}"#,
     );
     host.editor_state_mut().editor_ui.hovered_layer_id = Some(NodeId::new("n1"));
     host.mark_paint_dirty_for_test();
@@ -76,7 +76,7 @@ fn file_menu_cursor_move_clears_stale_layer_hover() {
     let mut host = WidgetHostNative::new();
     seed(
         &mut host,
-        r#"{"version":"0.8.0","children":[{"type":"rectangle","id":"n1","name":"n1","x":0,"y":0,"width":100,"height":50}]}"#,
+        r#"{"version":"1.0.0","children":[{"type":"rectangle","id":"n1","name":"n1","x":0,"y":0,"width":100,"height":50}]}"#,
     );
     host.last_viewport_w = 1200.0;
     host.last_viewport_h = 800.0;
@@ -123,7 +123,7 @@ fn property_panel_blank_hover_consumes_and_clears_lower_hover() {
     let mut host = WidgetHostNative::new();
     seed(
         &mut host,
-        r##"{ "version": "0.8.0", "children": [
+        r##"{ "version": "1.0.0", "children": [
               {"type":"group","id":"shape_group","name":"Shape Group",
                "children":[
                  {"type":"rectangle","id":"box","name":"Box","width":80,"height":40}
@@ -150,7 +150,7 @@ fn opening_file_menu_clears_stale_layer_hover() {
     let mut host = WidgetHostNative::new();
     seed(
         &mut host,
-        r#"{"version":"0.8.0","children":[{"type":"rectangle","id":"n1","name":"n1","x":0,"y":0,"width":100,"height":50}]}"#,
+        r#"{"version":"1.0.0","children":[{"type":"rectangle","id":"n1","name":"n1","x":0,"y":0,"width":100,"height":50}]}"#,
     );
     host.last_viewport_w = 1200.0;
     host.last_viewport_h = 800.0;
@@ -186,7 +186,7 @@ fn layer_row_selection_does_not_dirty_canvas_layout_scene() {
     let mut host = WidgetHostNative::new();
     seed(
         &mut host,
-        r#"{"version":"0.8.0","children":[{"type":"rectangle","id":"n1","name":"n1","x":0,"y":0,"width":100,"height":50},{"type":"rectangle","id":"n2","name":"n2","x":120,"y":0,"width":100,"height":50}]}"#,
+        r#"{"version":"1.0.0","children":[{"type":"rectangle","id":"n1","name":"n1","x":0,"y":0,"width":100,"height":50},{"type":"rectangle","id":"n2","name":"n2","x":120,"y":0,"width":100,"height":50}]}"#,
     );
     let _ = host.layout_scene();
     assert!(!host.editor_state_dirty);
@@ -216,7 +216,7 @@ fn layer_right_press_does_not_dirty_canvas_layout_scene() {
     let mut host = WidgetHostNative::new();
     seed(
         &mut host,
-        r#"{"version":"0.8.0","children":[{"type":"rectangle","id":"n1","name":"n1","x":0,"y":0,"width":100,"height":50},{"type":"rectangle","id":"n2","name":"n2","x":120,"y":0,"width":100,"height":50}]}"#,
+        r#"{"version":"1.0.0","children":[{"type":"rectangle","id":"n1","name":"n1","x":0,"y":0,"width":100,"height":50},{"type":"rectangle","id":"n2","name":"n2","x":120,"y":0,"width":100,"height":50}]}"#,
     );
     let _ = host.layout_scene();
     assert!(!host.editor_state_dirty);
@@ -247,7 +247,7 @@ fn layer_right_press_does_not_refresh_stale_canvas_layout_scene() {
     let mut host = WidgetHostNative::new();
     seed(
         &mut host,
-        r#"{"version":"0.8.0","children":[{"type":"rectangle","id":"n1","name":"n1","x":0,"y":0,"width":100,"height":50}]}"#,
+        r#"{"version":"1.0.0","children":[{"type":"rectangle","id":"n1","name":"n1","x":0,"y":0,"width":100,"height":50}]}"#,
     );
     host.mark_paint_dirty_for_test();
 
@@ -381,7 +381,7 @@ fn three_rects(boxes: [(f64, f64, f64, f64); 3], ids: [&str; 3]) -> String {
         )
     };
     format!(
-        r#"{{"version":"0.8.0","children":[{},{},{}]}}"#,
+        r#"{{"version":"1.0.0","children":[{},{},{}]}}"#,
         node(ids[0], boxes[0]),
         node(ids[1], boxes[1]),
         node(ids[2], boxes[2]),
@@ -708,7 +708,7 @@ fn toolbar_panel_actions_open_variables_and_design_panels() {
     let mut host = WidgetHostNative::new();
     seed(
         &mut host,
-        r#"{"version":"0.8.0","children":[{"type":"rectangle","id":"n1","name":"n1","x":0,"y":0,"width":100,"height":50}]}"#,
+        r#"{"version":"1.0.0","children":[{"type":"rectangle","id":"n1","name":"n1","x":0,"y":0,"width":100,"height":50}]}"#,
     );
     host.editor_state_mut().editor_ui.property_tab = op_editor_core::PropertyTab::Design;
     host.editor_state_mut().chat.collapsed = true;
@@ -763,7 +763,7 @@ fn explicit_variables_toolbar_opens_floating_variables_panel() {
     let mut host = WidgetHostNative::new();
     seed(
         &mut host,
-        r##"{"version":"0.8.0","children":[{"type":"frame","id":"frame-1","name":"Frame","x":0,"y":0,"width":100,"height":50}]}"##,
+        r##"{"version":"1.0.0","children":[{"type":"frame","id":"frame-1","name":"Frame","x":0,"y":0,"width":100,"height":50}]}"##,
     );
     host.editor_state_mut().selection.anchor = NodeId::new("frame-1");
     host.editor_state_mut().selection.set = vec![NodeId::new("frame-1")];
@@ -1123,7 +1123,7 @@ fn image_adjustment_drag_updates_live_after_press() {
     let mut host = WidgetHostNative::new();
     seed(
         &mut host,
-        r##"{ "version": "0.8.0", "children": [
+        r##"{ "version": "1.0.0", "children": [
               {"type":"rectangle","id":"n60","name":"Photo fill",
                "x":40,"y":40,"width":180,"height":120,
                "fill":[{"type":"image","url":"","mode":"fill",
@@ -1161,7 +1161,7 @@ fn image_fill_actions_refresh_the_render_scene() {
     let mut host = WidgetHostNative::new();
     seed(
         &mut host,
-        r##"{ "version": "0.8.0", "children": [
+        r##"{ "version": "1.0.0", "children": [
               {"type":"rectangle","id":"n61","name":"Photo fill",
                "x":40,"y":40,"width":180,"height":120,
                "fill":[{"type":"image","url":"data:image/png;base64,AA==","mode":"fill",
@@ -1212,7 +1212,7 @@ fn corner_radius_property_focus_updates_selected_rectangle() {
     let mut host = WidgetHostNative::new();
     seed(
         &mut host,
-        r##"{ "version": "0.8.0", "children": [
+        r##"{ "version": "1.0.0", "children": [
               {"type":"rectangle","id":"n62","name":"Rounded",
                "x":40,"y":40,"width":180,"height":120,
                "fill":[{"type":"solid","color":"#BDC7D9"}]}
@@ -1251,7 +1251,7 @@ fn property_focus_commit_reads_text_input_state() {
     let mut host = WidgetHostNative::new();
     seed(
         &mut host,
-        r##"{ "version": "0.8.0", "children": [
+        r##"{ "version": "1.0.0", "children": [
               {"type":"rectangle","id":"n62","name":"Wide",
                "x":40,"y":40,"width":180,"height":120,
                "fill":[{"type":"solid","color":"#BDC7D9"}]}
@@ -1274,7 +1274,7 @@ fn widget_leading_icon_focus_commits_onto_text_input() {
     let mut host = WidgetHostNative::new();
     seed(
         &mut host,
-        r##"{ "version": "0.8.0", "children": [
+        r##"{ "version": "1.0.0", "children": [
               {"type":"text_input","id":"email","name":"Email",
                "x":24,"y":32,"width":220,"height":40,"placeholder":"Email"}
         ]}"##,
@@ -1302,7 +1302,7 @@ fn widget_bind_key_focus_writes_state_binding() {
     let mut host = WidgetHostNative::new();
     seed(
         &mut host,
-        r##"{ "version": "0.8.0", "children": [
+        r##"{ "version": "1.0.0", "children": [
               {"type":"text_input","id":"email","name":"Email",
                "x":24,"y":32,"width":220,"height":40,"placeholder":"Email"}
         ]}"##,
@@ -1330,7 +1330,7 @@ fn property_focus_commit_is_undoable() {
     let mut host = WidgetHostNative::new();
     seed(
         &mut host,
-        r##"{ "version": "0.8.0", "children": [
+        r##"{ "version": "1.0.0", "children": [
               {"type":"rectangle","id":"n62","name":"Wide",
                "x":40,"y":40,"width":180,"height":120,
                "fill":[{"type":"solid","color":"#BDC7D9"}]}
@@ -1357,7 +1357,7 @@ fn property_press_seeds_text_input_state() {
     let mut host = WidgetHostNative::new();
     seed(
         &mut host,
-        r##"{ "version": "0.8.0", "children": [
+        r##"{ "version": "1.0.0", "children": [
               {"type":"rectangle","id":"n62","name":"Wide",
                "x":40,"y":40,"width":180,"height":120,
                "fill":[{"type":"solid","color":"#BDC7D9"}]}
@@ -1464,7 +1464,7 @@ fn property_step_reads_and_updates_text_input_state() {
     let mut host = WidgetHostNative::new();
     seed(
         &mut host,
-        r##"{ "version": "0.8.0", "children": [
+        r##"{ "version": "1.0.0", "children": [
               {"type":"rectangle","id":"n62","name":"Wide",
                "x":40,"y":40,"width":180,"height":120,
                "fill":[{"type":"solid","color":"#BDC7D9"}]}
@@ -1506,7 +1506,7 @@ fn polygon_sides_property_focus_updates_selected_polygon() {
     let mut host = WidgetHostNative::new();
     seed(
         &mut host,
-        r##"{ "version": "0.8.0", "children": [
+        r##"{ "version": "1.0.0", "children": [
               {"type":"polygon","id":"poly","name":"Polygon",
                "x":40,"y":40,"width":120,"height":120,
                "polygonCount":3}
@@ -1540,7 +1540,7 @@ fn ellipse_arc_property_focus_updates_selected_ellipse() {
     let mut host = WidgetHostNative::new();
     seed(
         &mut host,
-        r##"{ "version": "0.8.0", "children": [
+        r##"{ "version": "1.0.0", "children": [
               {"type":"ellipse","id":"ell","name":"Ellipse",
                "x":40,"y":40,"width":120,"height":100}
         ]}"##,
@@ -1883,7 +1883,7 @@ fn layer_context_create_component_click_promotes_frame() {
     let mut host = WidgetHostNative::new();
     seed(
         &mut host,
-        r#"{"version":"0.8.0","children":[
+        r#"{"version":"1.0.0","children":[
           {"type":"frame","id":"n10","name":"Card","x":0,"y":0,"width":100,"height":80,
            "children":[]}
         ]}"#,
@@ -1914,7 +1914,7 @@ fn property_panel_create_component_click_promotes_selected_frame() {
     let mut host = WidgetHostNative::new();
     seed(
         &mut host,
-        r#"{"version":"0.8.0","children":[
+        r#"{"version":"1.0.0","children":[
           {"type":"frame","id":"n20","name":"Hero","x":0,"y":0,"width":120,"height":90,
            "children":[]}
         ]}"#,
@@ -2349,7 +2349,7 @@ fn codegen_hover_tracks_idle_generate_button() {
     let mut host = WidgetHostNative::new();
     seed(
         &mut host,
-        r#"{"version":"0.8.0","children":[{"type":"rectangle","id":"n-code","name":"n-code","x":0,"y":0,"width":100,"height":50}]}"#,
+        r#"{"version":"1.0.0","children":[{"type":"rectangle","id":"n-code","name":"n-code","x":0,"y":0,"width":100,"height":50}]}"#,
     );
     host.last_viewport_w = 1200.0;
     host.last_viewport_h = 800.0;
@@ -2391,7 +2391,7 @@ fn codegen_preview_drag_selects_code_text() {
     let mut host = WidgetHostNative::new();
     seed(
         &mut host,
-        r#"{"version":"0.8.0","children":[{"type":"rectangle","id":"n-code","name":"n-code","x":0,"y":0,"width":100,"height":50}]}"#,
+        r#"{"version":"1.0.0","children":[{"type":"rectangle","id":"n-code","name":"n-code","x":0,"y":0,"width":100,"height":50}]}"#,
     );
     let viewport_w = 1200.0;
     let viewport_h = 800.0;
@@ -2426,7 +2426,7 @@ fn codegen_preview_wheel_scrolls_code_not_property_panel() {
     let mut host = WidgetHostNative::new();
     seed(
         &mut host,
-        r#"{"version":"0.8.0","children":[{"type":"rectangle","id":"n-code","name":"n-code","x":0,"y":0,"width":100,"height":50}]}"#,
+        r#"{"version":"1.0.0","children":[{"type":"rectangle","id":"n-code","name":"n-code","x":0,"y":0,"width":100,"height":50}]}"#,
     );
     let viewport_w = 1200.0;
     let viewport_h = 800.0;
@@ -2462,7 +2462,7 @@ fn property_tab_hover_tracks_inactive_design_tab() {
     let mut host = WidgetHostNative::new();
     seed(
         &mut host,
-        r#"{"version":"0.8.0","children":[{"type":"rectangle","id":"n-tabs","name":"n-tabs","x":0,"y":0,"width":100,"height":50}]}"#,
+        r#"{"version":"1.0.0","children":[{"type":"rectangle","id":"n-tabs","name":"n-tabs","x":0,"y":0,"width":100,"height":50}]}"#,
     );
     host.last_viewport_w = 1200.0;
     host.last_viewport_h = 800.0;
diff --git a/crates/op-host-native/src/widget_host/instance_fill_history_tests.rs b/crates/op-host-native/src/widget_host/instance_fill_history_tests.rs
index 4688f5fb9..de5b39cb0 100644
--- a/crates/op-host-native/src/widget_host/instance_fill_history_tests.rs
+++ b/crates/op-host-native/src/widget_host/instance_fill_history_tests.rs
@@ -11,7 +11,7 @@ use op_editor_core::NodeId;
 fn native_move_fill_action_dispatches_as_one_undoable_edit() {
     let mut host = WidgetHostNative::new();
     let doc = jian_ops_schema::load_str(
-        r##"{"version":"0.8.0","children":[{
+        r##"{"version":"1.0.0","children":[{
           "type":"rectangle","id":"rect","name":"Rect",
           "x":0,"y":0,"width":10,"height":10,
           "fill":[
@@ -53,7 +53,7 @@ fn native_move_fill_action_dispatches_as_one_undoable_edit() {
 fn native_instance_move_fill_undo_restores_the_original_ref() {
     let mut host = WidgetHostNative::new();
     let doc = jian_ops_schema::load_str(
-        r##"{"version":"0.8.0","children":[
+        r##"{"version":"1.0.0","children":[
           {"type":"rectangle","id":"master","name":"Master","reusable":true,
            "x":0,"y":0,"width":10,"height":10,
            "fill":[
@@ -135,7 +135,7 @@ fn native_compound_instance_alignment_undo_redo_preserves_each_history_state() {
 
     let mut host = WidgetHostNative::new();
     let doc = jian_ops_schema::load_str(
-        r##"{"version":"0.8.0","children":[
+        r##"{"version":"1.0.0","children":[
           {"type":"frame","id":"master","name":"Master","reusable":true,
            "x":0,"y":0,"width":100,"height":100,"layout":"vertical",
            "justifyContent":"start","alignItems":"start","children":[]},
diff --git a/crates/op-host-native/src/widget_host/instance_panel_tests.rs b/crates/op-host-native/src/widget_host/instance_panel_tests.rs
index 8d263f279..0556bb8c0 100644
--- a/crates/op-host-native/src/widget_host/instance_panel_tests.rs
+++ b/crates/op-host-native/src/widget_host/instance_panel_tests.rs
@@ -13,7 +13,7 @@ use op_editor_core::{NodeId, PenNodeExt};
 mod fill_history_tests;
 
 const COMPONENT_DOC: &str = r##"{
-  "version":"0.8.0",
+  "version":"1.0.0",
   "children":[
     {"type":"frame","id":"card","name":"Card","reusable":true,"x":0,"y":0,"width":200,"height":100,
      "fill":[{"type":"solid","color":"#222222"}],
@@ -344,7 +344,7 @@ fn remote_icon_insert_bakes_svg_d_as_path_node() {
 }
 
 const STROKE_RECT_DOC: &str = r##"{
-  "version":"0.8.0",
+  "version":"1.0.0",
   "children":[
     {"type":"rectangle","id":"r1","name":"Box","x":0,"y":0,"width":100,"height":50}
   ]
@@ -518,7 +518,7 @@ fn scene_fill(host: &mut WidgetHostNative, id: &str) -> Option<op_editor_ui::Col
 fn remove_fill_clears_scene_fill_on_plain_frame() {
     let mut host = WidgetHostNative::new();
     let doc = jian_ops_schema::load_str(
-        r##"{"version":"0.8.0","children":[
+        r##"{"version":"1.0.0","children":[
           {"type":"frame","id":"f1","name":"Box","x":0,"y":0,"width":100,"height":50,
            "fill":[{"type":"solid","color":"#ff0000"}]}
         ]}"##,
@@ -556,7 +556,7 @@ fn remove_fill_clears_scene_fill_on_plain_frame() {
 fn remove_fill_clears_scene_fill_on_nested_child() {
     let mut host = WidgetHostNative::new();
     let doc = jian_ops_schema::load_str(
-        r##"{"version":"0.8.0","children":[
+        r##"{"version":"1.0.0","children":[
           {"type":"frame","id":"screen","name":"Screen","x":0,"y":0,"width":200,"height":200,
            "children":[
              {"type":"rectangle","id":"bar","name":"Bar","x":10,"y":10,"width":120,"height":40,
@@ -587,7 +587,7 @@ fn remove_fill_clears_scene_fill_on_nested_child() {
 fn remove_all_multi_fills_clears_scene_fill() {
     let mut host = WidgetHostNative::new();
     let doc = jian_ops_schema::load_str(
-        r##"{"version":"0.8.0","children":[
+        r##"{"version":"1.0.0","children":[
           {"type":"frame","id":"f1","name":"Box","x":0,"y":0,"width":100,"height":50,
            "fill":[{"type":"solid","color":"#ff0000"},{"type":"solid","color":"#00ff00"}]}
         ]}"##,
@@ -618,7 +618,7 @@ fn remove_variable_bound_fill_clears_scene_color() {
     use jian_ops_schema::variable::{VariableKind, VariableScalar};
     let mut host = WidgetHostNative::new();
     let doc = jian_ops_schema::load_str(
-        r##"{"version":"0.8.0","children":[
+        r##"{"version":"1.0.0","children":[
           {"type":"rectangle","id":"r1","name":"Box","x":0,"y":0,"width":50,"height":50,
            "fill":[{"type":"solid","color":"$brand"}]}
         ]}"##,
diff --git a/crates/op-host-native/src/widget_host/panel_history_tests.rs b/crates/op-host-native/src/widget_host/panel_history_tests.rs
index 1ee46cfd3..81e565674 100644
--- a/crates/op-host-native/src/widget_host/panel_history_tests.rs
+++ b/crates/op-host-native/src/widget_host/panel_history_tests.rs
@@ -29,7 +29,7 @@ fn two_rects_host() -> WidgetHostNative {
     let mut host = WidgetHostNative::new();
     seed(
         &mut host,
-        r#"{"version":"0.8.0","children":[
+        r#"{"version":"1.0.0","children":[
           {"type":"rectangle","id":"a","name":"a","x":0,"y":0,"width":40,"height":40},
           {"type":"rectangle","id":"b","name":"b","x":60,"y":0,"width":40,"height":40}
         ]}"#,
@@ -42,7 +42,7 @@ fn three_pages_host() -> WidgetHostNative {
     let mut host = WidgetHostNative::new();
     seed(
         &mut host,
-        r#"{"version":"0.8.0","children":[],"pages":[
+        r#"{"version":"1.0.0","children":[],"pages":[
           {"id":"p1","name":"One","children":[
             {"type":"rectangle","id":"r1","name":"r1","x":0,"y":0,"width":10,"height":10}]},
           {"id":"p2","name":"Two","children":[
@@ -262,7 +262,7 @@ fn delete_last_page_guard_pushes_no_history() {
     let mut host = WidgetHostNative::new();
     seed(
         &mut host,
-        r#"{"version":"0.8.0","children":[],"pages":[
+        r#"{"version":"1.0.0","children":[],"pages":[
           {"id":"p1","name":"Only","children":[]}
         ]}"#,
     );
@@ -382,7 +382,7 @@ fn context_menu_boolean_union_is_undoable() {
     let mut host = WidgetHostNative::new();
     seed(
         &mut host,
-        r#"{"version":"0.8.0","children":[
+        r#"{"version":"1.0.0","children":[
           {"type":"rectangle","id":"a","name":"a","x":0,"y":0,"width":40,"height":40},
           {"type":"rectangle","id":"b","name":"b","x":20,"y":0,"width":40,"height":40}
         ]}"#,
@@ -419,7 +419,7 @@ fn context_menu_create_and_detach_component_are_undoable() {
     let mut host = WidgetHostNative::new();
     seed(
         &mut host,
-        r#"{"version":"0.8.0","children":[
+        r#"{"version":"1.0.0","children":[
           {"type":"frame","id":"f1","name":"Card","x":0,"y":0,
            "width":100,"height":80,"children":[]}
         ]}"#,
diff --git a/crates/op-host-native/src/widget_host/pen_press_tests.rs b/crates/op-host-native/src/widget_host/pen_press_tests.rs
index d1d85ba12..ed6b6ae05 100644
--- a/crates/op-host-native/src/widget_host/pen_press_tests.rs
+++ b/crates/op-host-native/src/widget_host/pen_press_tests.rs
@@ -20,7 +20,7 @@ fn seed(host: &mut WidgetHostNative, json: &str) {
 
 fn empty_host() -> WidgetHostNative {
     let mut host = WidgetHostNative::new();
-    seed(&mut host, r#"{"version":"0.8.0","children":[]}"#);
+    seed(&mut host, r#"{"version":"1.0.0","children":[]}"#);
     host
 }
 
@@ -29,7 +29,7 @@ fn path_host() -> WidgetHostNative {
     let mut host = WidgetHostNative::new();
     seed(
         &mut host,
-        r#"{"version":"0.8.0","children":[
+        r#"{"version":"1.0.0","children":[
           {"type":"path","id":"n60","name":"p","x":300,"y":300,
            "anchors":[{"x":300,"y":300},{"x":380,"y":300},{"x":380,"y":360}]}
         ]}"#,
@@ -370,7 +370,7 @@ fn handle_drag_preserves_grab_offset_and_anchor_type() {
     let mut host = WidgetHostNative::new();
     seed(
         &mut host,
-        r#"{"version":"0.8.0","children":[
+        r#"{"version":"1.0.0","children":[
           {"type":"path","id":"n60","name":"p","x":300,"y":300,
            "anchors":[{"x":300,"y":300},
                       {"x":380,"y":300,"handleOut":{"x":20,"y":0}},
diff --git a/crates/op-host-native/src/widget_host/preview_frame_tests.rs b/crates/op-host-native/src/widget_host/preview_frame_tests.rs
index 37568e438..fbf620651 100644
--- a/crates/op-host-native/src/widget_host/preview_frame_tests.rs
+++ b/crates/op-host-native/src/widget_host/preview_frame_tests.rs
@@ -21,7 +21,7 @@ fn load(src: &str) -> jian_ops_schema::PenDocument {
 fn phone_doc(height: u32) -> jian_ops_schema::PenDocument {
     load(&format!(
         r##"{{
-            "version": "0.8.0",
+            "version": "1.0.0",
             "children": [{{
                 "type": "frame", "id": "screen", "x": 0, "y": 0,
                 "width": 390, "height": {height},
@@ -35,7 +35,7 @@ fn phone_doc(height: u32) -> jian_ops_schema::PenDocument {
 fn narrow_semantic_nav_doc() -> jian_ops_schema::PenDocument {
     load(
         r##"{
-            "version": "0.8.0",
+            "version": "1.0.0",
             "children": [{
                 "type": "frame", "id": "screen", "x": 0, "y": 0,
                 "width": 390, "height": 2000,
diff --git a/crates/op-host-native/src/widget_host/property_panel_press_tests.rs b/crates/op-host-native/src/widget_host/property_panel_press_tests.rs
index eef42d5cf..3a181aab8 100644
--- a/crates/op-host-native/src/widget_host/property_panel_press_tests.rs
+++ b/crates/op-host-native/src/widget_host/property_panel_press_tests.rs
@@ -95,7 +95,7 @@ fn property_panel_action_press_sets_and_release_clears_pressed_button() {
     let mut host = WidgetHostNative::new();
     seed(
         &mut host,
-        r##"{ "version": "0.8.0", "children": [
+        r##"{ "version": "1.0.0", "children": [
               {"type":"rectangle","id":"n62","name":"Wide",
                "x":40,"y":40,"width":180,"height":120,
                "fill":[{"type":"solid","color":"#BDC7D9"}]}
@@ -128,7 +128,7 @@ fn fill_width_input_seeds_from_resolved_canvas_width() {
     let mut host = WidgetHostNative::new();
     seed(
         &mut host,
-        r##"{ "version": "0.8.0", "children": [
+        r##"{ "version": "1.0.0", "children": [
               {"type":"frame","id":"root","width":390,"height":710,
                "layout":"vertical","children":[
                  {"type":"frame","id":"fill","width":"fill_container",
@@ -152,7 +152,7 @@ fn disabling_fill_height_freezes_resolved_height_then_numeric_input_resizes_scen
     let mut host = WidgetHostNative::new();
     seed(
         &mut host,
-        r##"{ "version": "0.8.0", "children": [
+        r##"{ "version": "1.0.0", "children": [
               {"type":"frame","id":"screen","width":390,"height":710,
                "layout":"vertical","gap":0,"children":[
                  {"type":"frame","id":"content","name":"Content Wrapper",
@@ -201,7 +201,7 @@ fn property_panel_background_consumes_clicks() {
     let mut host = WidgetHostNative::new();
     seed(
         &mut host,
-        r##"{ "version": "0.8.0", "children": [
+        r##"{ "version": "1.0.0", "children": [
               {"type":"group","id":"shape_group","name":"Shape Group",
                "children":[
                  {"type":"rectangle","id":"box","name":"Box","width":80,"height":40}
@@ -227,7 +227,7 @@ fn native_property_panel_group_component_button_switches_to_detach() {
     let mut host = WidgetHostNative::new();
     seed(
         &mut host,
-        r##"{ "version": "0.8.0", "children": [
+        r##"{ "version": "1.0.0", "children": [
               {"type":"frame","id":"screen","name":"Screen",
                "x":40,"y":40,"width":360,"height":640,
                "children":[
diff --git a/crates/op-host-native/src/widget_host/scroll_tests.rs b/crates/op-host-native/src/widget_host/scroll_tests.rs
index cf7510773..a4f40744b 100644
--- a/crates/op-host-native/src/widget_host/scroll_tests.rs
+++ b/crates/op-host-native/src/widget_host/scroll_tests.rs
@@ -1,7 +1,7 @@
 use super::WidgetHostNative;
 
 fn nested_frame_doc(depth: usize) -> String {
-    let mut src = String::from(r#"{"version":"0.8.0","children":["#);
+    let mut src = String::from(r#"{"version":"1.0.0","children":["#);
     for i in 0..depth {
         src.push_str(&format!(
             r##"{{"type":"frame","id":"nest-{i:05}","name":"Nested Layer {i:05}","x":8,"y":6,"width":400,"height":220,"fill":[{{"type":"solid","color":"#ffffff20"}}],"stroke":{{"thickness":1,"fill":[{{"type":"solid","color":"#0088ff"}}]}},"children":["##
diff --git a/crates/op-host-native/src/widget_host/shortcut_surface_tests.rs b/crates/op-host-native/src/widget_host/shortcut_surface_tests.rs
index fde6a0e52..cd75980bd 100644
--- a/crates/op-host-native/src/widget_host/shortcut_surface_tests.rs
+++ b/crates/op-host-native/src/widget_host/shortcut_surface_tests.rs
@@ -12,9 +12,9 @@ fn seed(host: &mut WidgetHostNative, json: &str) {
     host.mark_paint_dirty_for_test();
 }
 
-const ONE_RECT: &str = r#"{"version":"0.8.0","children":[{"type":"rectangle","id":"n1","name":"n1","x":400,"y":300,"width":100,"height":50}]}"#;
+const ONE_RECT: &str = r#"{"version":"1.0.0","children":[{"type":"rectangle","id":"n1","name":"n1","x":400,"y":300,"width":100,"height":50}]}"#;
 
-const ONE_FRAME: &str = r#"{"version":"0.8.0","children":[{"type":"frame","id":"f1","name":"Card","x":0,"y":0,"width":100,"height":50}]}"#;
+const ONE_FRAME: &str = r#"{"version":"1.0.0","children":[{"type":"frame","id":"f1","name":"Card","x":0,"y":0,"width":100,"height":50}]}"#;
 
 #[test]
 fn panel_toggle_shortcuts_flip_their_flags() {
@@ -78,7 +78,7 @@ fn paste_figma_nodes_centres_fresh_ids_and_selects() {
     let mut host = WidgetHostNative::new();
     seed(&mut host, ONE_FRAME);
     let incoming = jian_ops_schema::load_str(
-        r#"{"version":"0.8.0","children":[
+        r#"{"version":"1.0.0","children":[
             {"type":"rectangle","id":"r1","name":"A","x":0,"y":0,"width":100,"height":100},
             {"type":"rectangle","id":"r2","name":"B","x":100,"y":0,"width":100,"height":100}
         ]}"#,
diff --git a/crates/op-host-native/src/widget_host/text_edit_press_tests.rs b/crates/op-host-native/src/widget_host/text_edit_press_tests.rs
index 4b487f528..936720f8c 100644
--- a/crates/op-host-native/src/widget_host/text_edit_press_tests.rs
+++ b/crates/op-host-native/src/widget_host/text_edit_press_tests.rs
@@ -17,7 +17,7 @@ const VIEWPORT_W: f32 = 1440.0;
 const VIEWPORT_H: f32 = 900.0;
 
 /// `t1` text node (400, 60, 200×60) with two authored lines.
-const TWO_LINES: &str = r#"{"version":"0.8.0","children":[
+const TWO_LINES: &str = r#"{"version":"1.0.0","children":[
   {"type":"text","id":"t1","name":"Label","x":400,"y":60,"width":200,"height":60,
    "content":"hello\nworld","fontSize":20,"lineHeight":1}
 ]}"#;
diff --git a/crates/op-host-services/src/doc_io.rs b/crates/op-host-services/src/doc_io.rs
index baea49cf9..ffde1dbab 100644
--- a/crates/op-host-services/src/doc_io.rs
+++ b/crates/op-host-services/src/doc_io.rs
@@ -470,7 +470,7 @@ mod tests {
     fn active_page_bbox_resolves_fit_content_root_height() {
         let doc = jian_ops_schema::load_str(
             r#"{
-              "version":"0.8.0",
+              "version":"1.0.0",
               "children":[{
                 "type":"frame", "id":"root", "name":"Explore",
                 "x":12, "y":24, "width":390, "height":"fit_content",
@@ -511,7 +511,7 @@ mod tests {
     fn canonical_document_is_not_mistaken_for_legacy() {
         // A canonical `.op` file has a *string* `version` — it must not
         // trip the legacy detector.
-        let canonical = r#"{"version":"0.8.0","children":[]}"#;
+        let canonical = r#"{"version":"1.0.0","children":[]}"#;
         assert!(!looks_like_legacy_doc_payload(canonical));
     }
 
diff --git a/crates/op-host-web/src/codegen_bundle.rs b/crates/op-host-web/src/codegen_bundle.rs
index 879a5a300..b5dbc0a08 100644
--- a/crates/op-host-web/src/codegen_bundle.rs
+++ b/crates/op-host-web/src/codegen_bundle.rs
@@ -57,7 +57,7 @@ mod tests {
     /// `test_support` is `#[cfg(test)]`-private to its crate).
     fn two_rect_state() -> EditorState {
         let doc = jian_ops_schema::load_str(
-            r#"{"version":"0.8.0","children":[
+            r#"{"version":"1.0.0","children":[
                 {"type":"rectangle","id":"n1","name":"A","x":0,"y":0,"width":10,"height":10},
                 {"type":"rectangle","id":"n2","name":"B","x":20,"y":0,"width":10,"height":10}
             ]}"#,
diff --git a/crates/op-host-web/src/codegen_web.rs b/crates/op-host-web/src/codegen_web.rs
index 220766b75..295b95f6c 100644
--- a/crates/op-host-web/src/codegen_web.rs
+++ b/crates/op-host-web/src/codegen_web.rs
@@ -634,7 +634,7 @@ mod tests {
 
     fn two_rect_state() -> EditorState {
         let doc = jian_ops_schema::load_str(
-            r#"{"version":"0.8.0","children":[
+            r#"{"version":"1.0.0","children":[
                 {"type":"rectangle","id":"n1","name":"A","x":0,"y":0,"width":10,"height":10},
                 {"type":"rectangle","id":"n2","name":"B","x":20,"y":0,"width":10,"height":10}
             ]}"#,
diff --git a/crates/op-host-web/src/file_actions.rs b/crates/op-host-web/src/file_actions.rs
index 12117dcbf..6feec46ac 100644
--- a/crates/op-host-web/src/file_actions.rs
+++ b/crates/op-host-web/src/file_actions.rs
@@ -412,7 +412,7 @@ mod tests {
 
     #[test]
     fn export_kit_document_builds_download_name_and_json() {
-        let src = r#"{"version":"0.8.0","name":"My Kit!","children":[{"type":"frame","id":"button","name":"Primary Button","reusable":true,"x":0,"y":0,"width":120,"height":40,"children":[]}]}"#;
+        let src = r#"{"version":"1.0.0","name":"My Kit!","children":[{"type":"frame","id":"button","name":"Primary Button","reusable":true,"x":0,"y":0,"width":120,"height":40,"children":[]}]}"#;
         let doc = op_pen_loader::load_canonical(src)
             .expect("canonical doc")
             .value;
@@ -432,7 +432,7 @@ mod tests {
 
     #[test]
     fn save_request_body_embeds_document_and_active_page_index() {
-        let src = r#"{"version":"0.8.0","children":[],"pages":[{"id":"p1","name":"One","children":[]},{"id":"p2","name":"Two","children":[{"type":"rectangle","id":"save-node","name":"Save Node","x":0,"y":0,"width":80,"height":40}]}]}"#;
+        let src = r#"{"version":"1.0.0","children":[],"pages":[{"id":"p1","name":"One","children":[]},{"id":"p2","name":"Two","children":[{"type":"rectangle","id":"save-node","name":"Save Node","x":0,"y":0,"width":80,"height":40}]}]}"#;
         let doc = op_pen_loader::load_canonical(src)
             .expect("canonical doc")
             .value;
@@ -467,7 +467,7 @@ mod tests {
 
     #[test]
     fn export_pdf_request_body_embeds_current_document() {
-        let src = r#"{"version":"0.8.0","children":[],"pages":[{"id":"p1","name":"One","children":[]},{"id":"p2","name":"Two","children":[{"type":"rectangle","id":"pdf-node","name":"PDF Node","x":0,"y":0,"width":80,"height":40}]}]}"#;
+        let src = r#"{"version":"1.0.0","children":[],"pages":[{"id":"p1","name":"One","children":[]},{"id":"p2","name":"Two","children":[{"type":"rectangle","id":"pdf-node","name":"PDF Node","x":0,"y":0,"width":80,"height":40}]}]}"#;
         let doc = op_pen_loader::load_canonical(src)
             .expect("canonical doc")
             .value;
@@ -515,7 +515,7 @@ mod tests {
 
     #[test]
     fn export_raster_request_body_embeds_format_scale_document_and_single_selection() {
-        let src = r#"{"version":"0.8.0","children":[{"type":"rectangle","id":"raster-node","name":"Raster Node","x":0,"y":0,"width":80,"height":40}]}"#;
+        let src = r#"{"version":"1.0.0","children":[{"type":"rectangle","id":"raster-node","name":"Raster Node","x":0,"y":0,"width":80,"height":40}]}"#;
         let doc = op_pen_loader::load_canonical(src)
             .expect("canonical doc")
             .value;
@@ -561,7 +561,7 @@ mod tests {
 
     #[test]
     fn import_kit_source_extracts_components_with_supplied_id() {
-        let src = r#"{"version":"0.8.0","name":"Imported System","children":[{"type":"frame","id":"card","name":"Profile Card","reusable":true,"x":0,"y":0,"width":240,"height":120,"children":[]}]}"#;
+        let src = r#"{"version":"1.0.0","name":"Imported System","children":[{"type":"frame","id":"card","name":"Profile Card","reusable":true,"x":0,"y":0,"width":240,"height":120,"children":[]}]}"#;
 
         let kit = import_kit_source(src, "web-kit-1".to_string())
             .expect("import parses")
diff --git a/crates/op-host-web/src/widget_host/canvas_hierarchy_tests.rs b/crates/op-host-web/src/widget_host/canvas_hierarchy_tests.rs
index a3f2c6d7b..107e152a0 100644
--- a/crates/op-host-web/src/widget_host/canvas_hierarchy_tests.rs
+++ b/crates/op-host-web/src/widget_host/canvas_hierarchy_tests.rs
@@ -7,7 +7,7 @@ use op_editor_ui::Point2D;
 const VIEWPORT_W: f32 = 1200.0;
 const VIEWPORT_H: f32 = 800.0;
 
-const FOUR_LEVELS: &str = r#"{"version":"0.8.0","children":[
+const FOUR_LEVELS: &str = r#"{"version":"1.0.0","children":[
   {"type":"frame","id":"root","name":"Root Frame","x":500,"y":100,"width":300,"height":300,
    "children":[
      {"type":"frame","id":"level-1","name":"Level 1","x":20,"y":20,"width":240,"height":240,
diff --git a/crates/op-host-web/src/widget_host/keyboard_tests.rs b/crates/op-host-web/src/widget_host/keyboard_tests.rs
index 4f4ef0e28..9d7342f66 100644
--- a/crates/op-host-web/src/widget_host/keyboard_tests.rs
+++ b/crates/op-host-web/src/widget_host/keyboard_tests.rs
@@ -7,7 +7,7 @@ use op_editor_ui::{KeyCode, KeyEvent, KeyLocation, KeyState, KeyValue, Modifiers
 
 fn seed_text_edit(host: &mut WidgetHost, content: &str) {
     let doc = jian_ops_schema::load_str(&format!(
-        r##"{{"version":"0.8.0","children":[
+        r##"{{"version":"1.0.0","children":[
           {{"type":"text","id":"t1","name":"Title","x":0,"y":0,"width":100,"height":24,
            "content":{content:?},"font_size":16,"fills":[{{"type":"solid","color":"#111827"}}]}}
         ]}}"##
diff --git a/crates/op-host-web/src/widget_host/layer_context_history_tests.rs b/crates/op-host-web/src/widget_host/layer_context_history_tests.rs
index 72c5a3667..1bd088e78 100644
--- a/crates/op-host-web/src/widget_host/layer_context_history_tests.rs
+++ b/crates/op-host-web/src/widget_host/layer_context_history_tests.rs
@@ -11,7 +11,7 @@ const VIEWPORT_H: f32 = 800.0;
 
 fn seed(host: &mut WidgetHost) {
     let doc = jian_ops_schema::load_str(
-        r#"{"version":"0.8.0","children":[
+        r#"{"version":"1.0.0","children":[
             {"type":"rectangle","id":"n1","name":"Header","x":0,"y":0,"width":100,"height":50},
             {"type":"rectangle","id":"n2","name":"Card","x":120,"y":0,"width":100,"height":50}
         ]}"#,
@@ -24,7 +24,7 @@ fn seed(host: &mut WidgetHost) {
 
 fn seed_overlapping_rects(host: &mut WidgetHost) {
     let doc = jian_ops_schema::load_str(
-        r#"{"version":"0.8.0","children":[
+        r#"{"version":"1.0.0","children":[
             {"type":"rectangle","id":"n1","name":"Header","x":0,"y":0,"width":100,"height":50},
             {"type":"rectangle","id":"n2","name":"Card","x":40,"y":0,"width":100,"height":50}
         ]}"#,
@@ -37,7 +37,7 @@ fn seed_overlapping_rects(host: &mut WidgetHost) {
 
 fn seed_pages(host: &mut WidgetHost) {
     let doc = jian_ops_schema::load_str(
-        r#"{"version":"0.8.0","children":[],"pages":[
+        r#"{"version":"1.0.0","children":[],"pages":[
             {"id":"p1","name":"One","children":[
                 {"type":"rectangle","id":"r1","name":"r1","x":0,"y":0,"width":10,"height":10}]},
             {"id":"p2","name":"Two","children":[
@@ -54,7 +54,7 @@ fn seed_pages(host: &mut WidgetHost) {
 
 fn seed_frame(host: &mut WidgetHost) {
     let doc = jian_ops_schema::load_str(
-        r#"{"version":"0.8.0","children":[
+        r#"{"version":"1.0.0","children":[
             {"type":"frame","id":"f1","name":"Card","x":0,"y":0,
              "width":100,"height":80,"children":[]}
         ]}"#,
diff --git a/crates/op-host-web/src/widget_host/layer_panel_rename_tests.rs b/crates/op-host-web/src/widget_host/layer_panel_rename_tests.rs
index a188dbe98..ed746e56c 100644
--- a/crates/op-host-web/src/widget_host/layer_panel_rename_tests.rs
+++ b/crates/op-host-web/src/widget_host/layer_panel_rename_tests.rs
@@ -9,7 +9,7 @@ const VIEWPORT_H: f32 = 800.0;
 
 fn seed(host: &mut WidgetHost) {
     let doc = jian_ops_schema::load_str(
-        r#"{"version":"0.8.0","children":[
+        r#"{"version":"1.0.0","children":[
             {"type":"rectangle","id":"n1","name":"Header","x":0,"y":0,"width":100,"height":50},
             {"type":"rectangle","id":"n2","name":"Card","x":120,"y":0,"width":100,"height":50}
         ]}"#,
diff --git a/crates/op-host-web/src/widget_host/node_drag_tests.rs b/crates/op-host-web/src/widget_host/node_drag_tests.rs
index d328d6f3f..47bb99617 100644
--- a/crates/op-host-web/src/widget_host/node_drag_tests.rs
+++ b/crates/op-host-web/src/widget_host/node_drag_tests.rs
@@ -9,7 +9,7 @@ const VH: f32 = 800.0;
 fn seed(host: &mut WidgetHost) {
     seed_json(
         host,
-        r##"{"version":"0.8.0","children":[
+        r##"{"version":"1.0.0","children":[
           {"type":"rectangle","id":"box","name":"Box","x":100,"y":100,"width":120,"height":80,
            "fill":[{"type":"solid","color":"#2563EB"}]}
         ]}"##,
@@ -110,7 +110,7 @@ fn option_dragging_vertical_layout_child_up_copies_before_source() {
     let mut host = WidgetHost::new();
     seed_json(
         &mut host,
-        r#"{"version":"0.8.0","children":[{
+        r#"{"version":"1.0.0","children":[{
           "type":"frame","id":"stack","name":"Stack","x":400,"y":60,"width":200,"height":300,
           "layout":"vertical","gap":8,
           "children":[
@@ -144,7 +144,7 @@ fn option_dragging_horizontal_layout_child_left_copies_before_source() {
     let mut host = WidgetHost::new();
     seed_json(
         &mut host,
-        r#"{"version":"0.8.0","children":[{
+        r#"{"version":"1.0.0","children":[{
           "type":"frame","id":"row","name":"Row","x":400,"y":60,"width":360,"height":120,
           "layout":"horizontal","gap":8,
           "children":[
@@ -178,7 +178,7 @@ fn arrow_nudge_reorders_selected_child_on_layout_axis() {
     let mut host = WidgetHost::new();
     seed_json(
         &mut host,
-        r#"{"version":"0.8.0","children":[{
+        r#"{"version":"1.0.0","children":[{
           "type":"frame","id":"stack","name":"Stack","x":400,"y":60,"width":200,"height":300,
           "layout":"vertical","gap":8,
           "children":[
@@ -200,7 +200,7 @@ fn arrow_nudge_reorders_selected_child_on_layout_axis() {
 fn select_tool_dragging_flex_child_reorders_during_preview_like_native() {
     let mut host = WidgetHost::new();
     let doc = jian_ops_schema::load_str(
-        r#"{"version":"0.8.0","children":[{
+        r#"{"version":"1.0.0","children":[{
           "type":"frame","id":"stack","name":"Stack","x":400,"y":60,"width":200,"height":300,
           "layout":"vertical","gap":8,
           "children":[
@@ -271,7 +271,7 @@ fn select_tool_dragging_flex_child_to_blank_canvas_previews_as_page_root() {
     let mut host = WidgetHost::new();
     seed_json(
         &mut host,
-        r#"{"version":"0.8.0","children":[{
+        r#"{"version":"1.0.0","children":[{
           "type":"frame","id":"stack","name":"Stack","x":400,"y":60,"width":200,"height":300,
           "layout":"vertical","gap":8,
           "children":[
@@ -319,7 +319,7 @@ fn select_tool_dragging_fill_sized_child_to_blank_canvas_freezes_resolved_size()
     let mut host = WidgetHost::new();
     seed_json(
         &mut host,
-        r#"{"version":"0.8.0","children":[{
+        r#"{"version":"1.0.0","children":[{
           "type":"frame","id":"screen","name":"Screen","x":400,"y":60,"width":360,"height":220,
           "layout":"vertical","gap":8,
           "children":[
@@ -367,7 +367,7 @@ fn select_tool_dragging_child_into_sibling_frame_reparents_like_native() {
     let mut host = WidgetHost::new();
     seed_json(
         &mut host,
-        r#"{"version":"0.8.0","children":[
+        r#"{"version":"1.0.0","children":[
           {"type":"frame","id":"src","name":"Source","x":400,"y":60,"width":200,"height":120,
            "children":[
              {"type":"rectangle","id":"box","name":"Box","x":20,"y":20,"width":50,"height":50}
@@ -399,7 +399,7 @@ fn select_tool_dragging_child_into_other_layout_uses_cross_container_placeholder
     let mut host = WidgetHost::new();
     seed_json(
         &mut host,
-        r#"{"version":"0.8.0","children":[
+        r#"{"version":"1.0.0","children":[
           {"type":"frame","id":"src","name":"Source","x":400,"y":60,"width":200,"height":120,
            "children":[
              {"type":"rectangle","id":"box","name":"Box","x":20,"y":20,"width":50,"height":50}
@@ -447,7 +447,7 @@ fn select_tool_dragging_child_to_blank_canvas_makes_it_page_root_like_native() {
     let mut host = WidgetHost::new();
     seed_json(
         &mut host,
-        r#"{"version":"0.8.0","children":[
+        r#"{"version":"1.0.0","children":[
           {"type":"frame","id":"card","name":"Card","x":400,"y":60,"width":200,"height":100,
            "children":[
              {"type":"rectangle","id":"box","name":"Box","x":20,"y":20,"width":50,"height":50}
@@ -475,7 +475,7 @@ fn select_tool_dragging_child_to_blank_canvas_makes_it_page_root_like_native() {
 fn dragging_a_selection_with_a_locked_node_does_not_drift_it_in_the_scene() {
     let mut host = WidgetHost::new();
     let doc = jian_ops_schema::load_str(
-        r##"{"version":"0.8.0","children":[
+        r##"{"version":"1.0.0","children":[
           {"type":"rectangle","id":"free","name":"Free","x":100,"y":100,"width":80,"height":60},
           {"type":"rectangle","id":"locked","name":"Locked","x":300,"y":100,"width":80,"height":60,"locked":true}
         ]}"##,
diff --git a/crates/op-host-web/src/widget_host/overlay_press_tests.rs b/crates/op-host-web/src/widget_host/overlay_press_tests.rs
index 2bdf27c5c..9ae9dda92 100644
--- a/crates/op-host-web/src/widget_host/overlay_press_tests.rs
+++ b/crates/op-host-web/src/widget_host/overlay_press_tests.rs
@@ -68,7 +68,7 @@ fn painted_inside(backend: &CaptureBackend, target: Rect) -> bool {
 
 fn seed_layer_doc(host: &mut WidgetHost) {
     let doc = jian_ops_schema::load_str(
-        r#"{"version":"0.8.0","children":[
+        r#"{"version":"1.0.0","children":[
             {"type":"rectangle","id":"n1","name":"Header","x":0,"y":0,"width":100,"height":50}
         ]}"#,
     )
diff --git a/crates/op-host-web/src/widget_host/pan_tests.rs b/crates/op-host-web/src/widget_host/pan_tests.rs
index e019e3688..53cba2278 100644
--- a/crates/op-host-web/src/widget_host/pan_tests.rs
+++ b/crates/op-host-web/src/widget_host/pan_tests.rs
@@ -56,7 +56,7 @@ fn horizontal_trackpad_pan_moves_canvas_viewport() {
 }
 
 fn nested_frame_doc(depth: usize) -> String {
-    let mut src = String::from(r#"{"version":"0.8.0","children":["#);
+    let mut src = String::from(r#"{"version":"1.0.0","children":["#);
     for i in 0..depth {
         src.push_str(&format!(
             r##"{{"type":"frame","id":"nest-{i:05}","name":"Nested Layer {i:05}","x":8,"y":6,"width":400,"height":220,"fill":[{{"type":"solid","color":"#ffffff20"}}],"stroke":{{"thickness":1,"fill":[{{"type":"solid","color":"#0088ff"}}]}},"children":["##
diff --git a/crates/op-host-web/src/widget_host/pen_press_tests.rs b/crates/op-host-web/src/widget_host/pen_press_tests.rs
index 3359487ff..a897b5655 100644
--- a/crates/op-host-web/src/widget_host/pen_press_tests.rs
+++ b/crates/op-host-web/src/widget_host/pen_press_tests.rs
@@ -19,7 +19,7 @@ fn path_host() -> WidgetHost {
     let mut host = WidgetHost::new();
     seed(
         &mut host,
-        r#"{"version":"0.8.0","children":[
+        r#"{"version":"1.0.0","children":[
           {"type":"path","id":"n60","name":"p","x":300,"y":300,
            "anchors":[{"x":300,"y":300},{"x":380,"y":300},{"x":380,"y":360}]}
         ]}"#,
@@ -59,7 +59,7 @@ fn handle_drag_preserves_grab_offset_and_anchor_type_like_native() {
     let mut host = WidgetHost::new();
     seed(
         &mut host,
-        r#"{"version":"0.8.0","children":[
+        r#"{"version":"1.0.0","children":[
           {"type":"path","id":"n60","name":"p","x":300,"y":300,
            "anchors":[{"x":300,"y":300},
                       {"x":380,"y":300,"handleOut":{"x":20,"y":0}},
diff --git a/crates/op-host-web/src/widget_host/property_input_tests.rs b/crates/op-host-web/src/widget_host/property_input_tests.rs
index dbd4ae980..b63272822 100644
--- a/crates/op-host-web/src/widget_host/property_input_tests.rs
+++ b/crates/op-host-web/src/widget_host/property_input_tests.rs
@@ -24,7 +24,7 @@ fn web_move_fill_action_dispatches_as_one_undoable_edit() {
     let mut host = WidgetHost::new();
     seed(
         &mut host,
-        r##"{"version":"0.8.0","children":[{
+        r##"{"version":"1.0.0","children":[{
           "type":"rectangle","id":"rect","name":"Rect",
           "x":0,"y":0,"width":10,"height":10,
           "fill":[
@@ -147,7 +147,7 @@ fn web_property_action_press_commits_prior_property_input() {
     let mut host = WidgetHost::new();
     seed(
         &mut host,
-        r##"{ "version": "0.8.0", "children": [
+        r##"{ "version": "1.0.0", "children": [
               {"type":"rectangle","id":"n62","name":"Wide",
                "x":40,"y":40,"width":180,"height":120,
                "fill":[{"type":"solid","color":"#BDC7D9"}]}
@@ -177,7 +177,7 @@ fn web_toolbar_press_commits_property_input_before_tool_switch() {
     let mut host = WidgetHost::new();
     seed(
         &mut host,
-        r##"{ "version": "0.8.0", "children": [
+        r##"{ "version": "1.0.0", "children": [
               {"type":"rectangle","id":"n62","name":"Wide",
                "x":40,"y":40,"width":180,"height":120,
                "fill":[{"type":"solid","color":"#BDC7D9"}]}
@@ -223,7 +223,7 @@ fn web_property_press_reseeds_from_committed_snapshot() {
     let mut host = WidgetHost::new();
     seed(
         &mut host,
-        r##"{ "version": "0.8.0", "children": [
+        r##"{ "version": "1.0.0", "children": [
               {"type":"rectangle","id":"n62","name":"Wide",
                "x":40,"y":40,"width":180,"height":120,
                "fill":[{"type":"solid","color":"#BDC7D9"}]}
@@ -250,7 +250,7 @@ fn web_effect_param_refocus_reseeds_from_committed_snapshot() {
     let mut host = WidgetHost::new();
     seed(
         &mut host,
-        r##"{ "version": "0.8.0", "children": [
+        r##"{ "version": "1.0.0", "children": [
               {"type":"rectangle","id":"n62","name":"Shadowed",
                "x":40,"y":40,"width":180,"height":120,
                "effects":[{"type":"shadow","offsetX":12,"offsetY":4,
@@ -288,7 +288,7 @@ fn web_effect_param_commit_on_instance_creates_override() {
     let mut host = WidgetHost::new();
     seed(
         &mut host,
-        r##"{ "version":"0.8.0", "children":[
+        r##"{ "version":"1.0.0", "children":[
               {"type":"rectangle","id":"card","name":"Card","reusable":true,
                "x":0,"y":0,"width":200,"height":100,
                "effects":[{"type":"shadow","offsetX":12,"offsetY":4,
@@ -347,7 +347,7 @@ fn web_effect_param_focus_commits_prior_property_input() {
     let mut host = WidgetHost::new();
     seed(
         &mut host,
-        r##"{ "version": "0.8.0", "children": [
+        r##"{ "version": "1.0.0", "children": [
               {"type":"rectangle","id":"n62","name":"Wide",
                "x":40,"y":40,"width":180,"height":120,
                "fill":[{"type":"solid","color":"#BDC7D9"}]}
@@ -406,7 +406,7 @@ fn web_property_focus_commit_reads_text_input_state() {
     let mut host = WidgetHost::new();
     seed(
         &mut host,
-        r##"{ "version": "0.8.0", "children": [
+        r##"{ "version": "1.0.0", "children": [
               {"type":"rectangle","id":"n62","name":"Wide",
                "x":40,"y":40,"width":180,"height":120,
                "fill":[{"type":"solid","color":"#BDC7D9"}]}
@@ -428,7 +428,7 @@ fn web_property_focus_commit_is_undoable() {
     let mut host = WidgetHost::new();
     seed(
         &mut host,
-        r##"{ "version": "0.8.0", "children": [
+        r##"{ "version": "1.0.0", "children": [
               {"type":"rectangle","id":"n62","name":"Wide",
                "x":40,"y":40,"width":180,"height":120,
                "fill":[{"type":"solid","color":"#BDC7D9"}]}
@@ -454,7 +454,7 @@ fn web_property_focus_commit_on_instance_undo_restores_ref() {
     let mut host = WidgetHost::new();
     seed(
         &mut host,
-        r##"{ "version":"0.8.0", "children":[
+        r##"{ "version":"1.0.0", "children":[
               {"type":"rectangle","id":"card","name":"Card","reusable":true,
                "x":0,"y":0,"width":200,"height":100,
                "fill":[{"type":"solid","color":"#222222"}]},
diff --git a/crates/op-host-web/src/widget_host/property_panel_press_tests.rs b/crates/op-host-web/src/widget_host/property_panel_press_tests.rs
index b2f8abc1e..844df859d 100644
--- a/crates/op-host-web/src/widget_host/property_panel_press_tests.rs
+++ b/crates/op-host-web/src/widget_host/property_panel_press_tests.rs
@@ -154,7 +154,7 @@ fn property_panel_action_press_sets_and_release_clears_pressed_button() {
     let mut host = WidgetHost::new();
     seed(
         &mut host,
-        r##"{ "version": "0.8.0", "children": [
+        r##"{ "version": "1.0.0", "children": [
               {"type":"rectangle","id":"n62","name":"Wide",
                "x":40,"y":40,"width":180,"height":120,
                "fill":[{"type":"solid","color":"#BDC7D9"}]}
@@ -186,7 +186,7 @@ fn web_disabling_fill_height_freezes_resolved_height_then_numeric_input_resizes_
     let mut host = WidgetHost::new();
     seed(
         &mut host,
-        r##"{ "version": "0.8.0", "children": [
+        r##"{ "version": "1.0.0", "children": [
               {"type":"frame","id":"screen","width":390,"height":710,
                "layout":"vertical","gap":0,"children":[
                  {"type":"frame","id":"content","name":"Content Wrapper",
@@ -226,7 +226,7 @@ fn web_property_panel_component_button_creates_and_detaches_component() {
     let mut host = WidgetHost::new();
     seed(
         &mut host,
-        r##"{ "version": "0.8.0", "children": [
+        r##"{ "version": "1.0.0", "children": [
               {"type":"frame","id":"card","name":"Card",
                "x":40,"y":40,"width":180,"height":120,
                "fill":[{"type":"solid","color":"#FFFFFF"}],
@@ -263,7 +263,7 @@ fn web_property_panel_group_component_button_switches_to_detach() {
     let mut host = WidgetHost::new();
     seed(
         &mut host,
-        r##"{ "version": "0.8.0", "children": [
+        r##"{ "version": "1.0.0", "children": [
               {"type":"group","id":"text_group","name":"Text Group",
                "children":[
                  {"type":"text","id":"label","name":"Label","content":"Hello"}
@@ -299,7 +299,7 @@ fn web_property_panel_background_consumes_clicks() {
     let mut host = WidgetHost::new();
     seed(
         &mut host,
-        r##"{ "version": "0.8.0", "children": [
+        r##"{ "version": "1.0.0", "children": [
               {"type":"group","id":"text_group","name":"Text Group",
                "children":[
                  {"type":"text","id":"label","name":"Label","content":"Hello"}
@@ -322,7 +322,7 @@ fn web_property_panel_background_consumes_clicks() {
 
 #[test]
 fn web_property_panel_instance_buttons_go_to_master_and_detach_instance() {
-    const COMPONENT_DOC: &str = r##"{ "version":"0.8.0", "children": [
+    const COMPONENT_DOC: &str = r##"{ "version":"1.0.0", "children": [
               {"type":"frame","id":"card","name":"Card","reusable":true,
                "x":40,"y":40,"width":180,"height":120,
                "fill":[{"type":"solid","color":"#FFFFFF"}],
@@ -359,7 +359,7 @@ fn web_property_panel_size_action_on_instance_routes_to_descendants_override() {
     let mut host = WidgetHost::new();
     seed(
         &mut host,
-        r##"{ "version":"0.8.0", "children": [
+        r##"{ "version":"1.0.0", "children": [
               {"type":"frame","id":"card","name":"Card","reusable":true,
                "x":40,"y":40,"width":180,"height":120,
                "fill":[{"type":"solid","color":"#FFFFFF"}],
@@ -399,7 +399,7 @@ fn web_property_panel_layout_actions_write_selected_node() {
     let mut host = WidgetHost::new();
     seed(
         &mut host,
-        r##"{ "version": "0.8.0", "children": [
+        r##"{ "version": "1.0.0", "children": [
               {"type":"rectangle","id":"n62","name":"Wide",
                "x":40,"y":40,"width":180,"height":120,
                "fill":[{"type":"solid","color":"#BDC7D9"}]}
@@ -453,7 +453,7 @@ fn web_property_panel_padding_mode_gear_opens_and_selects_mode() {
     let mut host = WidgetHost::new();
     seed(
         &mut host,
-        r##"{ "version": "0.8.0", "children": [
+        r##"{ "version": "1.0.0", "children": [
               {"type":"group","id":"text_group","name":"Text Group",
                "layout":"vertical","gap":8,
                "children":[
@@ -489,7 +489,7 @@ fn web_property_panel_fill_add_and_remove_match_native() {
     let mut host = WidgetHost::new();
     seed(
         &mut host,
-        r##"{ "version": "0.8.0", "children": [
+        r##"{ "version": "1.0.0", "children": [
               {"type":"rectangle","id":"n62","name":"No fill",
                "x":40,"y":40,"width":180,"height":120,
                "fill":[]}
@@ -519,7 +519,7 @@ fn web_property_panel_text_layout_actions_match_native() {
     let mut host = WidgetHost::new();
     seed(
         &mut host,
-        r##"{ "version": "0.8.0", "children": [
+        r##"{ "version": "1.0.0", "children": [
               {"type":"text","id":"label","name":"Label","content":"Hello",
                "x":40,"y":40,"width":180,"height":40,
                "fontSize":24}
@@ -554,7 +554,7 @@ fn web_property_panel_widget_checked_toggle_matches_native() {
     let mut host = WidgetHost::new();
     seed(
         &mut host,
-        r##"{ "version": "0.8.0", "children": [
+        r##"{ "version": "1.0.0", "children": [
               {"type":"checkbox","id":"cb","name":"Agree",
                "x":40,"y":40,"width":18,"height":18,
                "label":"Accept","checked":false}
diff --git a/crates/op-host-web/src/widget_host/resize_drag_tests.rs b/crates/op-host-web/src/widget_host/resize_drag_tests.rs
index 821ac0c33..8692810ad 100644
--- a/crates/op-host-web/src/widget_host/resize_drag_tests.rs
+++ b/crates/op-host-web/src/widget_host/resize_drag_tests.rs
@@ -7,7 +7,7 @@ const VH: f32 = 800.0;
 
 fn seed(host: &mut WidgetHost) {
     let doc = jian_ops_schema::load_str(
-        r##"{"version":"0.8.0","children":[
+        r##"{"version":"1.0.0","children":[
           {"type":"rectangle","id":"box","name":"Box","x":100,"y":100,"width":120,"height":80,
            "fill":[{"type":"solid","color":"#2563EB"}]}
         ]}"##,
@@ -22,7 +22,7 @@ fn seed(host: &mut WidgetHost) {
 
 fn seed_container(host: &mut WidgetHost) {
     let doc = jian_ops_schema::load_str(
-        r##"{"version":"0.8.0","children":[
+        r##"{"version":"1.0.0","children":[
           {"type":"frame","id":"box","name":"Frame","x":100,"y":100,
            "width":120,"height":80,"layout":"none","children":[
              {"type":"rectangle","id":"child","name":"Child","x":10,"y":12,
diff --git a/crates/op-host-web/src/widget_host/variables_panel_tests.rs b/crates/op-host-web/src/widget_host/variables_panel_tests.rs
index 0c4236377..6dfc8e1b2 100644
--- a/crates/op-host-web/src/widget_host/variables_panel_tests.rs
+++ b/crates/op-host-web/src/widget_host/variables_panel_tests.rs
@@ -50,7 +50,7 @@ fn selected_two_variant_color_host() -> WidgetHost {
     let mut host = WidgetHost::new();
     seed(
         &mut host,
-        r##"{ "version": "0.8.0", "children": [
+        r##"{ "version": "1.0.0", "children": [
               {"type":"rectangle","id":"n62","name":"Wide",
                "x":40,"y":40,"width":180,"height":120,
                "fill":[{"type":"solid","color":"#BDC7D9"}]}
@@ -326,7 +326,7 @@ fn variable_row_edit_commits_prior_property_focus_on_web() {
     let mut host = WidgetHost::new();
     seed(
         &mut host,
-        r##"{ "version": "0.8.0", "children": [
+        r##"{ "version": "1.0.0", "children": [
               {"type":"rectangle","id":"n62","name":"Wide",
                "x":40,"y":40,"width":180,"height":120,
                "fill":[{"type":"solid","color":"#BDC7D9"}]}
diff --git a/crates/op-pen-loader/src/adapter_tests.rs b/crates/op-pen-loader/src/adapter_tests.rs
index 91d065ecf..21e9b5858 100644
--- a/crates/op-pen-loader/src/adapter_tests.rs
+++ b/crates/op-pen-loader/src/adapter_tests.rs
@@ -42,7 +42,7 @@ fn preserving_geometry_keeps_authored_nested_positions() {
 
 #[test]
 fn minimal_empty_doc() {
-    let r = load(r#"{"version":"0.8.0","children":[]}"#);
+    let r = load(r#"{"version":"1.0.0","children":[]}"#);
     assert_eq!(r.payload.pages.len(), 1);
     assert!(r.payload.pages[0].children.is_empty());
 }
diff --git a/crates/op-pen-loader/src/payload.rs b/crates/op-pen-loader/src/payload.rs
index 6efd98090..d11201203 100644
--- a/crates/op-pen-loader/src/payload.rs
+++ b/crates/op-pen-loader/src/payload.rs
@@ -971,7 +971,7 @@ mod tests {
     use jian_ops_schema::node::PenNode;
 
     fn nested_frame_doc(depth: usize) -> String {
-        let mut src = String::from(r#"{"version":"0.8.0","children":["#);
+        let mut src = String::from(r#"{"version":"1.0.0","children":["#);
         for i in 0..depth {
             src.push_str(&format!(
                 r##"{{"type":"frame","id":"nest-{i:05}","name":"Nested Layer {i:05}","x":8,"y":6,"width":400,"height":220,"fill":[{{"type":"solid","color":"#ffffff20"}}],"stroke":{{"thickness":1,"fill":[{{"type":"solid","color":"#0088ff"}}]}},"children":["##
@@ -1027,7 +1027,7 @@ mod tests {
         // LLM-authored image node: `imageSearchQuery` / `imagePrompt` but no
         // `src`. jian's `ImageNode.src` is required, so this must be repaired
         // on load rather than rejected (the web app opened these files fine).
-        let doc = r#"{"version":"0.8.0","children":[{"id":"hero","type":"image","name":"Hero","width":120,"height":80,"imageSearchQuery":"pizza","imagePrompt":"a hot pizza"}]}"#;
+        let doc = r#"{"version":"1.0.0","children":[{"id":"hero","type":"image","name":"Hero","width":120,"height":80,"imageSearchQuery":"pizza","imagePrompt":"a hot pizza"}]}"#;
         let loaded = load_canonical(doc).expect("image node without src must load");
         assert_eq!(loaded.value.children.len(), 1, "the image node should load");
     }
@@ -1037,7 +1037,7 @@ mod tests {
         // Older TS files write a PenNode `fill` as a bare color string where
         // jian expects `Vec<PenFill>`. Must be wrapped, not rejected. The
         // type-less `StyledTextSegment.fill` (also a string) stays a string.
-        let doc = r##"{"version":"0.8.0","children":[{"id":"bg","type":"frame","name":"BG","x":0,"y":0,"width":100,"height":100,"fill":"#1A1D2E","children":[]}]}"##;
+        let doc = r##"{"version":"1.0.0","children":[{"id":"bg","type":"frame","name":"BG","x":0,"y":0,"width":100,"height":100,"fill":"#1A1D2E","children":[]}]}"##;
         let loaded = load_canonical(doc).expect("string fill must load");
         assert_eq!(loaded.value.children.len(), 1, "the frame should load");
     }
diff --git a/crates/op-pen-loader/src/scene_cache.rs b/crates/op-pen-loader/src/scene_cache.rs
index dc3ea0bb4..a69c302b0 100644
--- a/crates/op-pen-loader/src/scene_cache.rs
+++ b/crates/op-pen-loader/src/scene_cache.rs
@@ -104,7 +104,7 @@ mod tests {
 
     fn state_with_rect(x: f64) -> EditorState {
         let doc = jian_ops_schema::load_str(&format!(
-            r#"{{"version":"0.8.0","children":[
+            r#"{{"version":"1.0.0","children":[
               {{"type":"rectangle","id":"r","name":"r","x":{x},"y":0,"width":40,"height":20}}
             ]}}"#
         ))
diff --git a/crates/op-pen-loader/tests/fixed_size_layout.rs b/crates/op-pen-loader/tests/fixed_size_layout.rs
index 9fb94dc3f..e8aaf2134 100644
--- a/crates/op-pen-loader/tests/fixed_size_layout.rs
+++ b/crates/op-pen-loader/tests/fixed_size_layout.rs
@@ -24,7 +24,7 @@ fn find<'a>(nodes: &'a [NodePayload], name: &str) -> Option<&'a NodePayload> {
 fn fixed_square_image_not_shrunk_in_tight_row() {
     // 160-wide horizontal row holding a fill image + a fixed 80x80 image.
     // The fixed one must stay 80x80 (the fill image absorbs the squeeze).
-    let doc = r#"{"version":"0.8.0","children":[{"type":"frame","id":"row","width":160,"height":100,"layout":"horizontal","gap":8,"children":[{"type":"image","id":"fill","name":"Fill","width":"fill_container","height":"fill_container","src":""},{"type":"image","id":"sq","name":"Sq","width":80,"height":80,"src":""}]}]}"#;
+    let doc = r#"{"version":"1.0.0","children":[{"type":"frame","id":"row","width":160,"height":100,"layout":"horizontal","gap":8,"children":[{"type":"image","id":"fill","name":"Fill","width":"fill_container","height":"fill_container","src":""},{"type":"image","id":"sq","name":"Sq","width":80,"height":80,"src":""}]}]}"#;
     let loaded = op_pen_loader::load_canonical(doc).expect("loads");
     let d = op_pen_loader::pen_document_to_payload(&loaded.value);
     let sq = d
@@ -48,7 +48,7 @@ fn fill_width_tiles_with_fixed_height_still_share_the_row() {
     // height is Number` rule wrongly pinned them (flex_shrink=0) and the
     // fill tiles overflowed, showing only the first; the `AND` rule frees
     // them to share the row again.
-    let doc = r#"{"version":"0.8.0","children":[{"type":"frame","id":"row","width":300,"height":100,"layout":"horizontal","gap":0,"children":[{"type":"frame","id":"a","name":"A","width":"fill_container","height":78},{"type":"frame","id":"b","name":"B","width":"fill_container","height":78},{"type":"frame","id":"c","name":"C","width":"fill_container","height":78}]}]}"#;
+    let doc = r#"{"version":"1.0.0","children":[{"type":"frame","id":"row","width":300,"height":100,"layout":"horizontal","gap":0,"children":[{"type":"frame","id":"a","name":"A","width":"fill_container","height":78},{"type":"frame","id":"b","name":"B","width":"fill_container","height":78},{"type":"frame","id":"c","name":"C","width":"fill_container","height":78}]}]}"#;
     let loaded = op_pen_loader::load_canonical(doc).expect("loads");
     let d = op_pen_loader::pen_document_to_payload(&loaded.value);
     let a = d
@@ -71,7 +71,7 @@ fn fixed_sibling_stays_inside_card_when_fill_column_has_wide_content() {
     // must shrink below its content's min-width (TS gives fill the remaining
     // space, content wraps) so the fixed image stays inside the card instead
     // of being pushed out (needs `min_size: 0` on the fill axis).
-    let doc = r#"{"version":"0.8.0","children":[{"type":"frame","id":"card","width":200,"height":100,"layout":"horizontal","gap":0,"children":[{"type":"frame","id":"col","name":"Col","width":"fill_container","height":"fill_container","layout":"vertical","children":[{"type":"frame","id":"wide","width":150,"height":20}]},{"type":"image","id":"img","name":"Img","width":80,"height":80,"src":""}]}]}"#;
+    let doc = r#"{"version":"1.0.0","children":[{"type":"frame","id":"card","width":200,"height":100,"layout":"horizontal","gap":0,"children":[{"type":"frame","id":"col","name":"Col","width":"fill_container","height":"fill_container","layout":"vertical","children":[{"type":"frame","id":"wide","width":150,"height":20}]},{"type":"image","id":"img","name":"Img","width":80,"height":80,"src":""}]}]}"#;
     let loaded = op_pen_loader::load_canonical(doc).expect("loads");
     let d = op_pen_loader::pen_document_to_payload(&loaded.value);
     let img = d
diff --git a/tools/check-version-fixtures.sh b/tools/check-version-fixtures.sh
new file mode 100755
index 000000000..916ffdbd0
--- /dev/null
+++ b/tools/check-version-fixtures.sh
@@ -0,0 +1,36 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+script_dir=$(CDPATH= cd "$(dirname "$0")" && pwd)
+repo_root=$(CDPATH= cd "$script_dir/.." && pwd)
+current_version=$(bash "$repo_root/scripts/workspace-version.sh")
+
+cd "$repo_root"
+
+rg_status=0
+matches=$(rg \
+    --fixed-strings \
+    --line-number \
+    --with-filename \
+    --color never \
+    --glob '*.rs' \
+    --glob '!**/op-host-desktop/src/update_check.rs' \
+    "$current_version" \
+    crates) || rg_status=$?
+
+if [[ "$rg_status" -gt 1 ]]; then
+    printf 'version-fixtures: failed to scan Rust sources with rg (status %s)\n' "$rg_status" >&2
+    exit "$rg_status"
+fi
+
+if [[ -n "$matches" ]]; then
+    printf 'version-fixtures: ordinary Rust fixtures copy current product version %s:\n' \
+        "$current_version" >&2
+    printf '%s\n' "$matches" >&2
+    printf 'version-fixtures: use stable 1.0.0 test data unless a test explicitly covers compatibility, migration, or updates\n' >&2
+    exit 1
+fi
+
+printf 'version-fixtures: no ordinary Rust fixtures copy current product version %s\n' \
+    "$current_version"