diff --git a/packages/ecs-lib/CHANGELOG.md b/packages/ecs-lib/CHANGELOG.md
new file mode 100644
index 0000000..96382d3
--- /dev/null
+++ b/packages/ecs-lib/CHANGELOG.md
@@ -0,0 +1,22 @@
+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+# [@nanoforge-dev/ecs-lib@1.0.0](https://github.com/NanoForge-dev/Engine/tree/@nanoforge-dev/ecs-lib@1.0.0) - (2026-01-09)
+
+## Bug Fixes
+
+- **ecs:** Change ecs tests build (#152) ([246759e](https://github.com/NanoForge-dev/Engine/commit/246759ead7bee2364f8405fab50133463ae88978)) by @Exeloo
+- **ecs:** Type error in editor manifest (#148) ([389b2d8](https://github.com/NanoForge-dev/Engine/commit/389b2d86ad1515579af94042234ebdf9685bb6ab)) by @MartinFillon
+
+## Documentation
+
+- Document registry and setup auto push for docs (#159) ([6d7caa6](https://github.com/NanoForge-dev/Engine/commit/6d7caa63fc78a5269536771d69e027775f1197d2)) by @MartinFillon
+- Update README files with new structure and detailed usage examples for all packages (#157) ([63fab73](https://github.com/NanoForge-dev/Engine/commit/63fab7326bd9c7e6b00f950694ab16c9d9190c53)) by @Exeloo
+- Add funding (#147) ([7301fad](https://github.com/NanoForge-dev/Engine/commit/7301fad10f59b7e1f7fa788f8a2f6fc81d0db72e)) by @Exeloo
+
+## Features
+
+- **packages/network:** Client and server for tcp/udp and networked pong as example (#156) ([839fb95](https://github.com/NanoForge-dev/Engine/commit/839fb95449f6ae0ee66d7f7e279374268b743f65)) by @Tchips46
+- Split ecs between client and server (#142) ([18fdd4a](https://github.com/NanoForge-dev/Engine/commit/18fdd4ab8d693ddcd0d3290e9ade127c4f410009)) by @Exeloo
+
diff --git a/packages/ecs-lib/package.json b/packages/ecs-lib/package.json
index 34a7d68..288132c 100644
--- a/packages/ecs-lib/package.json
+++ b/packages/ecs-lib/package.json
@@ -1,7 +1,7 @@
 {
   "$schema": "https://json.schemastore.org/package.json",
   "name": "@nanoforge-dev/ecs-lib",
-  "version": "0.0.1",
+  "version": "1.0.0",
   "description": "NanoForge Engine - ECS Lib (source code use by ECS Client and Server)",
   "keywords": [
     "nanoforge",