Start 1.13.0 release (#4759)

Signed-off-by: Alvin Lin <[email protected]>

Author: alvinlin123

CHANGELOG.md

@@ -2,6 +2,7 @@
 
 ## master / unreleased
 
+## 1.13.0 in progress
 * [CHANGE] Changed default for `-ingester.min-ready-duration` from 1 minute to 15 seconds. #4539
 * [CHANGE] query-frontend: Do not print anything in the logs of `query-frontend` if a in-progress query has been canceled (context canceled) to avoid spam. #4562
 * [CHANGE] Compactor block deletion mark migration, needed when upgrading from v1.7, is now disabled by default. #4597

RELEASE.md

@@ -28,6 +28,7 @@ Our goal is to provide a new minor release every 6 weeks. This is a new process
 | v1.10.0        | 2021-06-25                                 | Bryan Boreham (@bboreham)                   |
 | v1.11.0        | 2021-08-06                                 | Marco Pracucci (@pracucci)                  |
 | v1.12.0        | 2022-02-17                                 | _Abandoned_                                 |
+| v1.13.0        | TBD                                        | Alvin Lin (@alvinlin123)                    |
 
 ## Release shepherd responsibilities