Merge pull request #19543 from ivanvc/update-changelog-v3.5.19-v3.6.0-rc.2

Update changelog with v3.5.19 v3.6.0-rc.2 release dates

Author: jmhbnz

CHANGELOG/CHANGELOG-3.5.md

@@ -3,7 +3,11 @@
 Previous change logs can be found at [CHANGELOG-3.4](https://github.com/etcd-io/etcd/blob/main/CHANGELOG/CHANGELOG-3.4.md).
 <hr>
 
-## v3.5.19 (TBC)
+## v3.5.20 (TBC)
+
+<hr>
+
+## v3.5.19 (2025-03-05)
 
 ### etcd server
 - Backport [add learner status check to readyz endpoint](https://github.com/etcd-io/etcd/pull/19280).

CHANGELOG/CHANGELOG-3.6.md

@@ -8,7 +8,11 @@ Previous change logs can be found at [CHANGELOG-3.5](https://github.com/etcd-io/
 
 <hr>
 
-## v3.6.0-rc.2 (TBD)
+## v3.6.0-rc.3 (TBD)
+
+<hr>
+
+## v3.6.0-rc.2 (2025-03-05)
 
 ### etcd server