docs(changelog): changelog for lts-v2.8.22 release

Change-Id: I07f6a6ebf4ca334c6384a7788852aa07577d0bd9
Signed-off-by: Release CI <ci@trustedfirmware.org>
diff --git a/docs/change-log.md b/docs/change-log.md
index 1a7871a..0de9559 100644
--- a/docs/change-log.md
+++ b/docs/change-log.md
@@ -3,6 +3,16 @@
 This document contains a summary of the new features, changes, fixes and known
 issues in each release of Trusted Firmware-A.
 
+## [lts-2.8.22](https://review.trustedfirmware.org/plugins/gitiles/TF-A/trusted-firmware-a/+/refs/tags/lts-v2.8.21..refs/tags/lts-v2.8.22) (2024-10-04)
+
+### Resolved Issues
+
+- **Libraries**
+
+  - **CPU Support**
+
+    - workaround for Cortex-X4 erratum 2897503 ([ac24f38](https://review.trustedfirmware.org/plugins/gitiles/TF-A/trusted-firmware-a/+/ac24f38b8fc9d6499ec020417d888f127e2ed44b))
+
 ## [lts-2.8.21](https://review.trustedfirmware.org/plugins/gitiles/TF-A/trusted-firmware-a/+/refs/tags/lts-v2.8.20..refs/tags/lts-v2.8.21) (2024-09-20)
 
 ### Resolved Issues
diff --git a/docs/conf.py b/docs/conf.py
index 41c5f15..6ae9d59 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -14,8 +14,8 @@
 
 project = "Trusted Firmware-A"
 author = "Trusted Firmware-A contributors"
-version = "2.8.21"
-release = "2.8.21"
+version = "2.8.22"
+release = "2.8.22"
 
 # -- General configuration ---------------------------------------------------