Update CHANGELOG.md

Author: nuno-vieira

CHANGELOG.md

@@ -3,7 +3,12 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 
 # Upcoming
 
-### 🔄 Changed
+### ✅ Added
+- New Thread List UI Component [#621](https://github.com/GetStream/stream-chat-swiftui/pull/621)
+- Handles marking a thread read in `ChannelViewModel` [#621](https://github.com/GetStream/stream-chat-swiftui/pull/621)
+
+### 🐞 Fixed
+- Fix Channel List loading view shimmering effect not working [#621](https://github.com/GetStream/stream-chat-swiftui/pull/621)
 
 # [4.64.0](https://github.com/GetStream/stream-chat-swiftui/releases/tag/4.64.0)
 _October 03, 2024_