Complete the change log for v0.5.0

CHANGELOG.md

@@ -2,16 +2,24 @@
 
 ## v0.5.0 / 2024-12-05
 
-This library is renamed from **Compose Multiplatform Material** to **Compose Multiplatform HTML Unified** which better describes its purpose since this release. The **Maven coordinates** have changed accordingly. Please adapt to these changes following the updated README.md.
+Important changes:
 
-There are no functional changes in this release.
-
-* bump Kotlin to 2.1.1, Compose Multiplatform to 1.7.1, and Kobweb to 0.20.0
+* This library is renamed from **Compose Multiplatform Material** to **Compose Multiplatform HTML Unified** which better describes its purpose since this release. The **Maven coordinates** have changed accordingly. Please adapt to these changes following the updated README.md.
 * replace the terms "Androidx"/"androidx"/"AndroidxCommon"/"androidxCommon" with Compose UI / "ComposeUi" / "composeUi" at appropriate places, both in docs and in code
 
   This introduces some breaking changes. Please adapt accordingly. We are sorry for the inconvenience.
 
-* ...
+Functional change:
+
+* delegate `Spacer` just to `DivBox` on JS DOM because the Kobweb `Spacer` has a different semantic from the Compose UI one
+
+Miscellaneous changes:
+
+* bump Kotlin to 2.1.0, Compose Multiplatform to 1.7.1, and Kobweb to 0.20.0
+* add a "side by side" demo hosted at <https://huanshankeji.github.io/compose-multiplatform-html-unified/>
+* add CODE_OF_CONDUCT.md and CONTRIBUTING.md
+* use the Kotlin binary compatibility validator
+* run IntelliJ IDEA Code Cleanup and Reformat Code on the whole project
 
 ## v0.4.0 / 2024-10-24