Update release notes

cjdsellers · cjdsellers · commit 303b9f4b305f · 2024-02-25T18:52:48.000+11:00
diff --git a/RELEASES.md b/RELEASES.md
@@ -1,6 +1,6 @@
 # NautilusTrader 1.188.0 Beta
 
-Released on TBD (UTC).
+Released on 25th February 2024 (UTC).
 
 ### Enhancements
 - Added `FuturesSpread` instrument type
