docs(changelog): changelog for lts-v2.8.6 release

Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
Change-Id: I7904bb919fc78ac9ff8b4b67d187f8b09afc1a68
diff --git a/Makefile b/Makefile
index 98c4d77..43ff467 100644
--- a/Makefile
+++ b/Makefile
@@ -9,7 +9,7 @@
 #
 VERSION_MAJOR			:= 2
 VERSION_MINOR			:= 8
-VERSION_PATCH			:= 4
+VERSION_PATCH			:= 6
 VERSION				:= ${VERSION_MAJOR}.${VERSION_MINOR}.${VERSION_PATCH}
 
 # Default goal is build all images
diff --git a/docs/change-log.md b/docs/change-log.md
index 4f6ea8b..c5f4db5 100644
--- a/docs/change-log.md
+++ b/docs/change-log.md
@@ -3,6 +3,26 @@
 This document contains a summary of the new features, changes, fixes and known
 issues in each release of Trusted Firmware-A.
 
+## [lts-2.8.6](https://review.trustedfirmware.org/plugins/gitiles/TF-A/trusted-firmware-a/+/refs/tags/lts-v2.8.5..refs/tags/lts-v2.8.6) (2023-04-20)
+
+### Resolved issues (since lts-v2.8.5)
+
+  - **Arm**
+
+    - **GIC**
+
+      - **GICv3**
+
+        - fix(gicv3): workaround for NVIDIA erratum T241-FABRIC-4 ([2e48284](https://review.trustedfirmware.org/plugins/gitiles/TF-A/trusted-firmware-a/+/2e48284c8b5a4cf28779a30fd60d99650928865e))
+
+- **Bootloader Images**
+
+  - **BL32**
+
+    - **TSP**
+
+      - fix(tsp): use verbose for power logs ([6cc8ca9](https://review.trustedfirmware.org/plugins/gitiles/TF-A/trusted-firmware-a/+/6cc8ca93a905cfdc791ab7a7d2b8d6c366b5705e))
+
 ## [lts-2.8.5](https://review.trustedfirmware.org/plugins/gitiles/TF-A/trusted-firmware-a/+/refs/tags/lts-v2.8.4..refs/tags/lts-v2.8.5) (2023-04-19)
 
 ### Resolved issues (since lts-v2.8.4)