NEWS: 1.13.0.rc2 update

NEWS

@@ -11,7 +11,16 @@
 ### Features:
 ### Bugfixes:
 
-## 1.13.0 (May 27, 2022)
+## 1.13.0-rc2 (June 27, 2022)
+#### Bugfixes
+##### RDMA CORE (IB, ROCE, etc.)
+* Fixed indirect key registration
+* Fixed flow control protocol for DC transport
+##### GPU (CUDA, ROCM)
+* Fixed CUDA module compilation with clang 13
+* Fixes in ROCm memory detection and performance estimation
+
+## 1.13.0-rc1 (May 27, 2022)
 #### Features
 ##### Core
 * Added new objects to VFS: local and remote address of endpoint, statistics of ucp_ep_create success/failure, failed/destroyed endpoints