chore: sync RELEASE_POLICY and CHANGELOG after 1.4.1 release

Sync RELEASE_POLICY and CHANGELOG between main and 1.4.1 branch.
Also update latest supported version of 1.3.

Signed-off-by: Sudan Landge <sudanl@amazon.com>

Author: Sudan Landge

CHANGELOG.md

@@ -15,6 +15,8 @@
 
 ### Fixed
 
+- Fixed a change in behavior of normalize host brand string that breaks
+  Firecracker on external instances.
 - Fixed the T2A CPU template not to unset the MMX bit (CPUID.80000001h:EDX[23])
   and the FXSR bit (CPUID.80000001h:EDX[24]).
 - Fixed the T2A CPU template to set the RstrFpErrPtrs bit

docs/RELEASE_POLICY.md

@@ -86,8 +86,8 @@ also be specifying the supported kernel versions.
 
 | Release | Release Date | Latest Patch | Min. end of support | Official end of Support        |
 | ------: | -----------: | -----------: | ------------------: | :----------------------------- |
-| v1.4    |   2023-07-20 | v1.4.0       |          2024-01-20 | Supported                      |
-| v1.3    |   2023-03-02 | v1.3.2       |          2023-09-02 | Supported                      |
+| v1.4    |   2023-07-20 | v1.4.1       |          2024-01-20 | Supported                      |
+| v1.3    |   2023-03-02 | v1.3.3       |          2023-09-02 | Supported                      |
 | v1.2    |   2022-11-30 | v1.2.1       |          2023-05-30 | 2023-07-20 (v1.4 released)     |
 | v1.1    |   2022-05-06 | v1.1.4       |          2022-11-06 | 2023-03-02 (v1.3 released)     |
 | v1.0    |   2022-01-31 | v1.0.2       |          2022-07-31 | 2022-11-30 (v1.2 released)     |