Merge pull request #9698 from rakhmets/topic/news-1.16.0-rc3

NEWS: Added 1.16.0-rc3 section.

Author: yosefe

NEWS

@@ -11,7 +11,12 @@
 ### Features:
 ### Bugfixes:
 
-## 1.16.0 (January 21, 2024)
+## 1.16.0-rc3 (February 20, 2024)
+### Bugfixes:
+#### UCP
+* Fixed crash in rendezvous protocol rkey pack after failed memory registration
+
+## 1.16.0-rc2 (January 21, 2024)
 ### Features:
 #### UCP
 * Added tag offload rendezvous protocol in new infrastructure