diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5b6a8b2..dfaa056 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -14,3 +14,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Build-time version generation from pubspec.yaml (`dart run tool/generate_version.dart`)
 - Version logging on app startup
 - Project documentation (PHILOSOPHY.md, README.md, AGENTS.md, PLAN.md)
+- Phase 0 technical documentation:
+  - docs/ARCHITECTURE.md - Clean Architecture patterns
+  - docs/API_INTEGRATION.md - Backend API reference
+  - docs/DEPLOYMENT.md - Docker and infrastructure setup
+  - docs/DATAGRID.md - DataGrid component specification
+  - docs/THEMING.md - Material 3 theming guide