From 350146726e51b2b942fa64a7a4c89df3c7df5deb Mon Sep 17 00:00:00 2001
From: mikebarkmin <2592379+mikebarkmin@users.noreply.github.com>
Date: Wed, 14 Oct 2026 18:33:31 +0000
Subject: [PATCH 1/2] chore: release v6.2.0

---
 .changeset/portable-save-data.md          | 13 ----
 CHANGELOG.md                              | 17 +++++-
 catalogs/api.json                         |  4 +-
 catalogs/assets.json                      |  4 +-
 catalogs/examples.json                    | 74 +++++++++++------------
 compatibility/browser-compatibility.md    |  2 +-
 compatibility/browser-policy.json         |  4 +-
 compatibility/contract.json               |  4 +-
 docs/public/catalogs/api.json             |  4 +-
 docs/public/catalogs/assets.json          |  4 +-
 docs/public/catalogs/examples.json        | 74 +++++++++++------------
 docs/public/compatibility.json            |  4 +-
 pom.xml                                   |  2 +-
 src/main/resources/catalogs/api.json      |  4 +-
 src/main/resources/catalogs/assets.json   |  4 +-
 src/main/resources/catalogs/examples.json | 74 +++++++++++------------
 16 files changed, 147 insertions(+), 145 deletions(-)
 delete mode 100644 .changeset/portable-save-data.md

diff --git a/.changeset/portable-save-data.md b/.changeset/portable-save-data.md
deleted file mode 100644
index e04dc9d9..00000000
--- a/.changeset/portable-save-data.md
+++ /dev/null
@@ -1,13 +0,0 @@
----
-type: minor
----
-
-Add `SaveData<T>` for game progress and named save slots. Desktop games store
-public data fields as JSON in their user-data directory; the online IDE uses
-IndexedDB through the same Java API. Missing slots use caller-supplied defaults,
-while corrupt data and failed writes report errors without silently resetting
-progress. Writes commit before the game continues.
-
-The Coin Quest demo uses built-in assets and three slots, with controls to save,
-load and start a fresh round. Its score and sprite positions survive a desktop
-restart or browser reload.
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9955999d..cde616ff 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,9 +1,24 @@
 ---
 name: Changelog
-index: 81
+index: 82
 lang: en
 ---
 
+## 6.2.0
+
+
+
+Add `SaveData<T>` for game progress and named save slots. Desktop games store
+public data fields as JSON in their user-data directory; the online IDE uses
+IndexedDB through the same Java API. Missing slots use caller-supplied defaults,
+while corrupt data and failed writes report errors without silently resetting
+progress. Writes commit before the game continues.
+
+The Coin Quest demo uses built-in assets and three slots, with controls to save,
+load and start a fresh round. Its score and sprite positions survive a desktop
+restart or browser reload.
+
+
 ## 6.1.3
 
 
diff --git a/catalogs/api.json b/catalogs/api.json
index 83309c7f..bb12174e 100644
--- a/catalogs/api.json
+++ b/catalogs/api.json
@@ -1,7 +1,7 @@
 {
   "schemaVersion": 1,
-  "libraryVersion": "6.1.3",
-  "browserVersion": "6.1.3-browser.2",
+  "libraryVersion": "6.2.0",
+  "browserVersion": "6.2.0-browser.1",
   "methods": [
     {
       "id": "AnimatedSprite/addAnimation(String,String,int)",
diff --git a/catalogs/assets.json b/catalogs/assets.json
index 78b8e2f0..9b058365 100644
--- a/catalogs/assets.json
+++ b/catalogs/assets.json
@@ -1,7 +1,7 @@
 {
   "schemaVersion": 1,
-  "libraryVersion": "6.1.3",
-  "browserVersion": "6.1.3-browser.2",
+  "libraryVersion": "6.2.0",
+  "browserVersion": "6.2.0-browser.1",
   "license": "CC0",
   "images": [
     {
diff --git a/catalogs/examples.json b/catalogs/examples.json
index 15141557..8c8b4378 100644
--- a/catalogs/examples.json
+++ b/catalogs/examples.json
@@ -1,13 +1,13 @@
 {
   "schemaVersion": 1,
-  "libraryVersion": "6.1.3",
-  "browserVersion": "6.1.3-browser.2",
+  "libraryVersion": "6.2.0",
+  "browserVersion": "6.2.0-browser.1",
   "examples": [
     {
       "id": "demo/cat",
       "kind": "demo",
       "source": "src/examples/java/demos/cat",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [],
       "files": [
@@ -25,7 +25,7 @@
       "id": "demo/catPlatformer",
       "kind": "demo",
       "source": "src/examples/java/demos/catPlatformer",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [
         "cat",
@@ -75,7 +75,7 @@
       "id": "demo/clock",
       "kind": "demo",
       "source": "src/examples/java/demos/clock",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [],
       "files": [
@@ -125,7 +125,7 @@
       "id": "demo/coinCollector",
       "kind": "demo",
       "source": "src/examples/java/demos/coinCollector",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [
         "platformer",
@@ -154,7 +154,7 @@
       "id": "demo/donutIO",
       "kind": "demo",
       "source": "src/examples/java/demos/donutIO",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [],
       "files": [
@@ -212,7 +212,7 @@
       "id": "demo/glide",
       "kind": "demo",
       "source": "src/examples/java/demos/glide",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [
         "platformer",
@@ -229,7 +229,7 @@
       "id": "demo/pipes",
       "kind": "demo",
       "source": "src/examples/java/demos/pipes",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [],
       "files": [
@@ -259,7 +259,7 @@
       "id": "demo/quiz",
       "kind": "demo",
       "source": "src/examples/java/demos/quiz",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [
         "platformer",
@@ -276,7 +276,7 @@
       "id": "demo/rainbowVine",
       "kind": "demo",
       "source": "src/examples/java/demos/rainbowVine",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [],
       "files": [
@@ -290,7 +290,7 @@
       "id": "demo/randomDot",
       "kind": "demo",
       "source": "src/examples/java/demos/randomDot",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [],
       "files": [
@@ -304,7 +304,7 @@
       "id": "demo/robot",
       "kind": "demo",
       "source": "src/examples/java/demos/robot",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [],
       "files": [
@@ -326,7 +326,7 @@
       "id": "demo/saveSlots",
       "kind": "demo",
       "source": "src/examples/java/demos/saveSlots",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [
         "platformer",
@@ -355,7 +355,7 @@
       "id": "demo/saving",
       "kind": "demo",
       "source": "src/examples/java/demos/saving",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [],
       "files": [
@@ -373,7 +373,7 @@
       "id": "demo/sensing",
       "kind": "demo",
       "source": "src/examples/java/demos/sensing",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [],
       "files": [
@@ -395,7 +395,7 @@
       "id": "demo/shader",
       "kind": "demo",
       "source": "src/examples/java/demos/shader",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [],
       "files": [
@@ -465,7 +465,7 @@
       "id": "demo/shakespeare",
       "kind": "demo",
       "source": "src/examples/java/demos/shakespeare",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [],
       "files": [
@@ -491,7 +491,7 @@
       "id": "demo/smartRocket",
       "kind": "demo",
       "source": "src/examples/java/demos/smartRocket",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [],
       "files": [
@@ -533,7 +533,7 @@
       "id": "demo/stressTest",
       "kind": "demo",
       "source": "src/examples/java/demos/stressTest",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [],
       "files": [
@@ -931,7 +931,7 @@
       "id": "demo/tiled",
       "kind": "demo",
       "source": "src/examples/java/demos/tiled",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [],
       "files": [
@@ -1041,7 +1041,7 @@
       "id": "demo/timedDot",
       "kind": "demo",
       "source": "src/examples/java/demos/timedDot",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [],
       "files": [
@@ -1055,7 +1055,7 @@
       "id": "demo/timer",
       "kind": "demo",
       "source": "src/examples/java/demos/timer",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [],
       "files": [
@@ -1069,7 +1069,7 @@
       "id": "demo/ui",
       "kind": "demo",
       "source": "src/examples/java/demos/ui",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [],
       "files": [
@@ -1099,7 +1099,7 @@
       "id": "demo/volume",
       "kind": "demo",
       "source": "src/examples/java/demos/volume",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [
         "platformer",
@@ -1116,7 +1116,7 @@
       "id": "tutorial/Halloween",
       "kind": "tutorial",
       "source": "docs/archives/Halloween",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [],
       "files": [
@@ -1218,7 +1218,7 @@
       "id": "tutorial/bluej-starter",
       "kind": "tutorial",
       "source": "docs/archives/bluej-starter",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [],
       "files": [
@@ -1252,7 +1252,7 @@
       "id": "tutorial/bouncy-hedgehog",
       "kind": "tutorial",
       "source": "docs/archives/bouncy-hedgehog",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [],
       "files": [
@@ -1302,7 +1302,7 @@
       "id": "tutorial/bouncy-hedgehog-100",
       "kind": "tutorial",
       "source": "docs/archives/bouncy-hedgehog-100",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [],
       "files": [
@@ -1352,7 +1352,7 @@
       "id": "tutorial/cat",
       "kind": "tutorial",
       "source": "docs/archives/cat",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [],
       "files": [
@@ -1378,7 +1378,7 @@
       "id": "tutorial/catch-the-coins-100",
       "kind": "tutorial",
       "source": "docs/archives/catch-the-coins-100",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [
         "platformer",
@@ -1415,7 +1415,7 @@
       "id": "tutorial/dodge-the-rocks-100",
       "kind": "tutorial",
       "source": "docs/archives/dodge-the-rocks-100",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [
         "platformer",
@@ -1460,7 +1460,7 @@
       "id": "tutorial/getting-started-100",
       "kind": "tutorial",
       "source": "docs/archives/getting-started-100",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [
         "jumper",
@@ -1493,7 +1493,7 @@
       "id": "tutorial/guess-the-number-100",
       "kind": "tutorial",
       "source": "docs/archives/guess-the-number-100",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [
         "platformer",
@@ -1522,7 +1522,7 @@
       "id": "tutorial/make-it-walk-100",
       "kind": "tutorial",
       "source": "docs/archives/make-it-walk-100",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [
         "platformer",
@@ -1555,7 +1555,7 @@
       "id": "tutorial/red-light-green-light-100",
       "kind": "tutorial",
       "source": "docs/archives/red-light-green-light-100",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [
         "platformer",
@@ -1592,7 +1592,7 @@
       "id": "tutorial/vs-code-starter",
       "kind": "tutorial",
       "source": "docs/archives/vs-code-starter",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [],
       "files": [
diff --git a/compatibility/browser-compatibility.md b/compatibility/browser-compatibility.md
index 60ad5cca..e2c77206 100644
--- a/compatibility/browser-compatibility.md
+++ b/compatibility/browser-compatibility.md
@@ -1,6 +1,6 @@
 # Browser compatibility
 
-Desktop library: **6.1.3**. Browser implementation: **6.1.3-browser.2**.
+Desktop library: **6.2.0**. Browser implementation: **6.2.0-browser.1**.
 
 Generated by `scripts/browser-compatibility.py`. Machine-readable: [contract.json](contract.json).
 
diff --git a/compatibility/browser-policy.json b/compatibility/browser-policy.json
index 540ffd7f..550d16c5 100644
--- a/compatibility/browser-policy.json
+++ b/compatibility/browser-policy.json
@@ -1,7 +1,7 @@
 {
   "schemaVersion": 1,
-  "desktopVersion": "6.1.3",
-  "browserVersion": "6.1.3-browser.2",
+  "desktopVersion": "6.2.0",
+  "browserVersion": "6.2.0-browser.1",
   "flavors": {
     "standard": {
       "libraries": [
diff --git a/compatibility/contract.json b/compatibility/contract.json
index 534bb33a..9a1cfdaa 100644
--- a/compatibility/contract.json
+++ b/compatibility/contract.json
@@ -1,8 +1,8 @@
 {
   "schemaVersion": 1,
-  "desktopVersion": "6.1.3",
+  "desktopVersion": "6.2.0",
   "browser": {
-    "version": "6.1.3-browser.2",
+    "version": "6.2.0-browser.1",
     "flavors": {
       "standard": {
         "libraries": [
diff --git a/docs/public/catalogs/api.json b/docs/public/catalogs/api.json
index 83309c7f..bb12174e 100644
--- a/docs/public/catalogs/api.json
+++ b/docs/public/catalogs/api.json
@@ -1,7 +1,7 @@
 {
   "schemaVersion": 1,
-  "libraryVersion": "6.1.3",
-  "browserVersion": "6.1.3-browser.2",
+  "libraryVersion": "6.2.0",
+  "browserVersion": "6.2.0-browser.1",
   "methods": [
     {
       "id": "AnimatedSprite/addAnimation(String,String,int)",
diff --git a/docs/public/catalogs/assets.json b/docs/public/catalogs/assets.json
index 78b8e2f0..9b058365 100644
--- a/docs/public/catalogs/assets.json
+++ b/docs/public/catalogs/assets.json
@@ -1,7 +1,7 @@
 {
   "schemaVersion": 1,
-  "libraryVersion": "6.1.3",
-  "browserVersion": "6.1.3-browser.2",
+  "libraryVersion": "6.2.0",
+  "browserVersion": "6.2.0-browser.1",
   "license": "CC0",
   "images": [
     {
diff --git a/docs/public/catalogs/examples.json b/docs/public/catalogs/examples.json
index 15141557..8c8b4378 100644
--- a/docs/public/catalogs/examples.json
+++ b/docs/public/catalogs/examples.json
@@ -1,13 +1,13 @@
 {
   "schemaVersion": 1,
-  "libraryVersion": "6.1.3",
-  "browserVersion": "6.1.3-browser.2",
+  "libraryVersion": "6.2.0",
+  "browserVersion": "6.2.0-browser.1",
   "examples": [
     {
       "id": "demo/cat",
       "kind": "demo",
       "source": "src/examples/java/demos/cat",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [],
       "files": [
@@ -25,7 +25,7 @@
       "id": "demo/catPlatformer",
       "kind": "demo",
       "source": "src/examples/java/demos/catPlatformer",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [
         "cat",
@@ -75,7 +75,7 @@
       "id": "demo/clock",
       "kind": "demo",
       "source": "src/examples/java/demos/clock",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [],
       "files": [
@@ -125,7 +125,7 @@
       "id": "demo/coinCollector",
       "kind": "demo",
       "source": "src/examples/java/demos/coinCollector",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [
         "platformer",
@@ -154,7 +154,7 @@
       "id": "demo/donutIO",
       "kind": "demo",
       "source": "src/examples/java/demos/donutIO",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [],
       "files": [
@@ -212,7 +212,7 @@
       "id": "demo/glide",
       "kind": "demo",
       "source": "src/examples/java/demos/glide",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [
         "platformer",
@@ -229,7 +229,7 @@
       "id": "demo/pipes",
       "kind": "demo",
       "source": "src/examples/java/demos/pipes",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [],
       "files": [
@@ -259,7 +259,7 @@
       "id": "demo/quiz",
       "kind": "demo",
       "source": "src/examples/java/demos/quiz",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [
         "platformer",
@@ -276,7 +276,7 @@
       "id": "demo/rainbowVine",
       "kind": "demo",
       "source": "src/examples/java/demos/rainbowVine",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [],
       "files": [
@@ -290,7 +290,7 @@
       "id": "demo/randomDot",
       "kind": "demo",
       "source": "src/examples/java/demos/randomDot",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [],
       "files": [
@@ -304,7 +304,7 @@
       "id": "demo/robot",
       "kind": "demo",
       "source": "src/examples/java/demos/robot",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [],
       "files": [
@@ -326,7 +326,7 @@
       "id": "demo/saveSlots",
       "kind": "demo",
       "source": "src/examples/java/demos/saveSlots",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [
         "platformer",
@@ -355,7 +355,7 @@
       "id": "demo/saving",
       "kind": "demo",
       "source": "src/examples/java/demos/saving",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [],
       "files": [
@@ -373,7 +373,7 @@
       "id": "demo/sensing",
       "kind": "demo",
       "source": "src/examples/java/demos/sensing",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [],
       "files": [
@@ -395,7 +395,7 @@
       "id": "demo/shader",
       "kind": "demo",
       "source": "src/examples/java/demos/shader",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [],
       "files": [
@@ -465,7 +465,7 @@
       "id": "demo/shakespeare",
       "kind": "demo",
       "source": "src/examples/java/demos/shakespeare",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [],
       "files": [
@@ -491,7 +491,7 @@
       "id": "demo/smartRocket",
       "kind": "demo",
       "source": "src/examples/java/demos/smartRocket",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [],
       "files": [
@@ -533,7 +533,7 @@
       "id": "demo/stressTest",
       "kind": "demo",
       "source": "src/examples/java/demos/stressTest",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [],
       "files": [
@@ -931,7 +931,7 @@
       "id": "demo/tiled",
       "kind": "demo",
       "source": "src/examples/java/demos/tiled",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [],
       "files": [
@@ -1041,7 +1041,7 @@
       "id": "demo/timedDot",
       "kind": "demo",
       "source": "src/examples/java/demos/timedDot",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [],
       "files": [
@@ -1055,7 +1055,7 @@
       "id": "demo/timer",
       "kind": "demo",
       "source": "src/examples/java/demos/timer",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [],
       "files": [
@@ -1069,7 +1069,7 @@
       "id": "demo/ui",
       "kind": "demo",
       "source": "src/examples/java/demos/ui",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [],
       "files": [
@@ -1099,7 +1099,7 @@
       "id": "demo/volume",
       "kind": "demo",
       "source": "src/examples/java/demos/volume",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [
         "platformer",
@@ -1116,7 +1116,7 @@
       "id": "tutorial/Halloween",
       "kind": "tutorial",
       "source": "docs/archives/Halloween",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [],
       "files": [
@@ -1218,7 +1218,7 @@
       "id": "tutorial/bluej-starter",
       "kind": "tutorial",
       "source": "docs/archives/bluej-starter",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [],
       "files": [
@@ -1252,7 +1252,7 @@
       "id": "tutorial/bouncy-hedgehog",
       "kind": "tutorial",
       "source": "docs/archives/bouncy-hedgehog",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [],
       "files": [
@@ -1302,7 +1302,7 @@
       "id": "tutorial/bouncy-hedgehog-100",
       "kind": "tutorial",
       "source": "docs/archives/bouncy-hedgehog-100",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [],
       "files": [
@@ -1352,7 +1352,7 @@
       "id": "tutorial/cat",
       "kind": "tutorial",
       "source": "docs/archives/cat",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [],
       "files": [
@@ -1378,7 +1378,7 @@
       "id": "tutorial/catch-the-coins-100",
       "kind": "tutorial",
       "source": "docs/archives/catch-the-coins-100",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [
         "platformer",
@@ -1415,7 +1415,7 @@
       "id": "tutorial/dodge-the-rocks-100",
       "kind": "tutorial",
       "source": "docs/archives/dodge-the-rocks-100",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [
         "platformer",
@@ -1460,7 +1460,7 @@
       "id": "tutorial/getting-started-100",
       "kind": "tutorial",
       "source": "docs/archives/getting-started-100",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [
         "jumper",
@@ -1493,7 +1493,7 @@
       "id": "tutorial/guess-the-number-100",
       "kind": "tutorial",
       "source": "docs/archives/guess-the-number-100",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [
         "platformer",
@@ -1522,7 +1522,7 @@
       "id": "tutorial/make-it-walk-100",
       "kind": "tutorial",
       "source": "docs/archives/make-it-walk-100",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [
         "platformer",
@@ -1555,7 +1555,7 @@
       "id": "tutorial/red-light-green-light-100",
       "kind": "tutorial",
       "source": "docs/archives/red-light-green-light-100",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [
         "platformer",
@@ -1592,7 +1592,7 @@
       "id": "tutorial/vs-code-starter",
       "kind": "tutorial",
       "source": "docs/archives/vs-code-starter",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [],
       "files": [
diff --git a/docs/public/compatibility.json b/docs/public/compatibility.json
index 534bb33a..9a1cfdaa 100644
--- a/docs/public/compatibility.json
+++ b/docs/public/compatibility.json
@@ -1,8 +1,8 @@
 {
   "schemaVersion": 1,
-  "desktopVersion": "6.1.3",
+  "desktopVersion": "6.2.0",
   "browser": {
-    "version": "6.1.3-browser.2",
+    "version": "6.2.0-browser.1",
     "flavors": {
       "standard": {
         "libraries": [
diff --git a/pom.xml b/pom.xml
index ea506424..e2d6c14a 100644
--- a/pom.xml
+++ b/pom.xml
@@ -5,7 +5,7 @@
 
     <groupId>org.openpatch</groupId>
     <artifactId>scratch</artifactId>
-    <version>6.1.3</version>
+    <version>6.2.0</version>
     <packaging>jar</packaging>
 
     <name>Scratch for Java</name>
diff --git a/src/main/resources/catalogs/api.json b/src/main/resources/catalogs/api.json
index 83309c7f..bb12174e 100644
--- a/src/main/resources/catalogs/api.json
+++ b/src/main/resources/catalogs/api.json
@@ -1,7 +1,7 @@
 {
   "schemaVersion": 1,
-  "libraryVersion": "6.1.3",
-  "browserVersion": "6.1.3-browser.2",
+  "libraryVersion": "6.2.0",
+  "browserVersion": "6.2.0-browser.1",
   "methods": [
     {
       "id": "AnimatedSprite/addAnimation(String,String,int)",
diff --git a/src/main/resources/catalogs/assets.json b/src/main/resources/catalogs/assets.json
index 78b8e2f0..9b058365 100644
--- a/src/main/resources/catalogs/assets.json
+++ b/src/main/resources/catalogs/assets.json
@@ -1,7 +1,7 @@
 {
   "schemaVersion": 1,
-  "libraryVersion": "6.1.3",
-  "browserVersion": "6.1.3-browser.2",
+  "libraryVersion": "6.2.0",
+  "browserVersion": "6.2.0-browser.1",
   "license": "CC0",
   "images": [
     {
diff --git a/src/main/resources/catalogs/examples.json b/src/main/resources/catalogs/examples.json
index 15141557..8c8b4378 100644
--- a/src/main/resources/catalogs/examples.json
+++ b/src/main/resources/catalogs/examples.json
@@ -1,13 +1,13 @@
 {
   "schemaVersion": 1,
-  "libraryVersion": "6.1.3",
-  "browserVersion": "6.1.3-browser.2",
+  "libraryVersion": "6.2.0",
+  "browserVersion": "6.2.0-browser.1",
   "examples": [
     {
       "id": "demo/cat",
       "kind": "demo",
       "source": "src/examples/java/demos/cat",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [],
       "files": [
@@ -25,7 +25,7 @@
       "id": "demo/catPlatformer",
       "kind": "demo",
       "source": "src/examples/java/demos/catPlatformer",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [
         "cat",
@@ -75,7 +75,7 @@
       "id": "demo/clock",
       "kind": "demo",
       "source": "src/examples/java/demos/clock",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [],
       "files": [
@@ -125,7 +125,7 @@
       "id": "demo/coinCollector",
       "kind": "demo",
       "source": "src/examples/java/demos/coinCollector",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [
         "platformer",
@@ -154,7 +154,7 @@
       "id": "demo/donutIO",
       "kind": "demo",
       "source": "src/examples/java/demos/donutIO",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [],
       "files": [
@@ -212,7 +212,7 @@
       "id": "demo/glide",
       "kind": "demo",
       "source": "src/examples/java/demos/glide",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [
         "platformer",
@@ -229,7 +229,7 @@
       "id": "demo/pipes",
       "kind": "demo",
       "source": "src/examples/java/demos/pipes",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [],
       "files": [
@@ -259,7 +259,7 @@
       "id": "demo/quiz",
       "kind": "demo",
       "source": "src/examples/java/demos/quiz",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [
         "platformer",
@@ -276,7 +276,7 @@
       "id": "demo/rainbowVine",
       "kind": "demo",
       "source": "src/examples/java/demos/rainbowVine",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [],
       "files": [
@@ -290,7 +290,7 @@
       "id": "demo/randomDot",
       "kind": "demo",
       "source": "src/examples/java/demos/randomDot",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [],
       "files": [
@@ -304,7 +304,7 @@
       "id": "demo/robot",
       "kind": "demo",
       "source": "src/examples/java/demos/robot",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [],
       "files": [
@@ -326,7 +326,7 @@
       "id": "demo/saveSlots",
       "kind": "demo",
       "source": "src/examples/java/demos/saveSlots",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [
         "platformer",
@@ -355,7 +355,7 @@
       "id": "demo/saving",
       "kind": "demo",
       "source": "src/examples/java/demos/saving",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [],
       "files": [
@@ -373,7 +373,7 @@
       "id": "demo/sensing",
       "kind": "demo",
       "source": "src/examples/java/demos/sensing",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [],
       "files": [
@@ -395,7 +395,7 @@
       "id": "demo/shader",
       "kind": "demo",
       "source": "src/examples/java/demos/shader",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [],
       "files": [
@@ -465,7 +465,7 @@
       "id": "demo/shakespeare",
       "kind": "demo",
       "source": "src/examples/java/demos/shakespeare",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [],
       "files": [
@@ -491,7 +491,7 @@
       "id": "demo/smartRocket",
       "kind": "demo",
       "source": "src/examples/java/demos/smartRocket",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [],
       "files": [
@@ -533,7 +533,7 @@
       "id": "demo/stressTest",
       "kind": "demo",
       "source": "src/examples/java/demos/stressTest",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [],
       "files": [
@@ -931,7 +931,7 @@
       "id": "demo/tiled",
       "kind": "demo",
       "source": "src/examples/java/demos/tiled",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [],
       "files": [
@@ -1041,7 +1041,7 @@
       "id": "demo/timedDot",
       "kind": "demo",
       "source": "src/examples/java/demos/timedDot",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [],
       "files": [
@@ -1055,7 +1055,7 @@
       "id": "demo/timer",
       "kind": "demo",
       "source": "src/examples/java/demos/timer",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [],
       "files": [
@@ -1069,7 +1069,7 @@
       "id": "demo/ui",
       "kind": "demo",
       "source": "src/examples/java/demos/ui",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [],
       "files": [
@@ -1099,7 +1099,7 @@
       "id": "demo/volume",
       "kind": "demo",
       "source": "src/examples/java/demos/volume",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [
         "platformer",
@@ -1116,7 +1116,7 @@
       "id": "tutorial/Halloween",
       "kind": "tutorial",
       "source": "docs/archives/Halloween",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [],
       "files": [
@@ -1218,7 +1218,7 @@
       "id": "tutorial/bluej-starter",
       "kind": "tutorial",
       "source": "docs/archives/bluej-starter",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [],
       "files": [
@@ -1252,7 +1252,7 @@
       "id": "tutorial/bouncy-hedgehog",
       "kind": "tutorial",
       "source": "docs/archives/bouncy-hedgehog",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [],
       "files": [
@@ -1302,7 +1302,7 @@
       "id": "tutorial/bouncy-hedgehog-100",
       "kind": "tutorial",
       "source": "docs/archives/bouncy-hedgehog-100",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [],
       "files": [
@@ -1352,7 +1352,7 @@
       "id": "tutorial/cat",
       "kind": "tutorial",
       "source": "docs/archives/cat",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [],
       "files": [
@@ -1378,7 +1378,7 @@
       "id": "tutorial/catch-the-coins-100",
       "kind": "tutorial",
       "source": "docs/archives/catch-the-coins-100",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [
         "platformer",
@@ -1415,7 +1415,7 @@
       "id": "tutorial/dodge-the-rocks-100",
       "kind": "tutorial",
       "source": "docs/archives/dodge-the-rocks-100",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [
         "platformer",
@@ -1460,7 +1460,7 @@
       "id": "tutorial/getting-started-100",
       "kind": "tutorial",
       "source": "docs/archives/getting-started-100",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [
         "jumper",
@@ -1493,7 +1493,7 @@
       "id": "tutorial/guess-the-number-100",
       "kind": "tutorial",
       "source": "docs/archives/guess-the-number-100",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [
         "platformer",
@@ -1522,7 +1522,7 @@
       "id": "tutorial/make-it-walk-100",
       "kind": "tutorial",
       "source": "docs/archives/make-it-walk-100",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [
         "platformer",
@@ -1555,7 +1555,7 @@
       "id": "tutorial/red-light-green-light-100",
       "kind": "tutorial",
       "source": "docs/archives/red-light-green-light-100",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [
         "platformer",
@@ -1592,7 +1592,7 @@
       "id": "tutorial/vs-code-starter",
       "kind": "tutorial",
       "source": "docs/archives/vs-code-starter",
-      "libraryVersion": "6.1.3",
+      "libraryVersion": "6.2.0",
       "flavour": "standard",
       "requiredSheets": [],
       "files": [

From 1a39395c2695bd1eee05dc5c640a88c612384c68 Mon Sep 17 00:00:00 2001
From: Mike Barkmin <mike@barkmin.eu>
Date: Wed, 14 Oct 2026 20:36:43 +0200
Subject: [PATCH 2/2] docs: pin SaveData runtime for release 6.2.0

---
 CHANGELOG.md        | 3 +++
 docs/hyperbook.json | 5 ++++-
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index cde616ff..706b9d64 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -18,6 +18,9 @@ The Coin Quest demo uses built-in assets and three slots, with controls to save,
 load and start a fresh round. Its score and sprite positions survive a desktop
 restart or browser reload.
 
+The demo launcher checks compilation before running an example, so newly added
+demos work even when older compiled classes are already present.
+
 
 ## 6.1.3
 
diff --git a/docs/hyperbook.json b/docs/hyperbook.json
index cb88a9d5..da3f1239 100644
--- a/docs/hyperbook.json
+++ b/docs/hyperbook.json
@@ -43,7 +43,10 @@
     }
   ],
   "elements": {
-    "bookmarks": false
+    "bookmarks": false,
+    "onlineide": {
+      "cdn": "https://cdn.openpatch.org/onlineide/v2.2.1-hyperbook.31/"
+    }
   },
   "license": "CC-BY-NC-SA",
   "language": "en"