Update release notes

Author: cjdsellers

RELEASES.md

@@ -15,6 +15,7 @@ This release adds support for Python 3.13 (*not* yet compatible with free-thread
 None
 
 ### Internal Improvements
+- Improved WebSocket error handling for dYdX (#2499), thanks @davidsblom
 - Ported `GreeksCalculator` to Rust (#2493, #2496), thanks @faysou
 - Upgraded Cython to v3.1.0b1
 - Upgraded `tokio` crate to v1.44.2