Update errata

- Report the issue of SVE2 build crashes when run on an SVE only device.

Resolves: COMPMID-6178
Signed-off-by: Ramy Elgammal <ramy.elgammal@arm.com>
Change-Id: I4e9e63b6064d4d5db9f8f3b99a38ec60828e9607
Reviewed-on: https://review.mlplatform.org/c/ml/ComputeLibrary/+/10141
Reviewed-by: SiCong Li <sicong.li@arm.com>
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>
Tested-by: Arm Jenkins <bsgcomp@arm.com>
Benchmark: Arm Jenkins <bsgcomp@arm.com>
diff --git a/docs/user_guide/errata.dox b/docs/user_guide/errata.dox
index 525ad3e..056e45a 100644
--- a/docs/user_guide/errata.dox
+++ b/docs/user_guide/errata.dox
@@ -30,6 +30,17 @@
 
 @section S7_1_errata Errata
 
+- (COMPMID-6493) Crash when running Arm Compute Library compiled for SVE2 on a computer that support SVE only.
+    - Versions: >= v21.02 && <=v23.08
+    - OSs: Linux, Android.
+    - Conditions:
+        - Compile the latest Arm Compute Library for SVE2 (arch=armv8.6-a-sve2).
+        - multi_isa = 0
+        - Device with SVE but without SVE2 support.
+    - Result:
+        - Crash due to illegal instruction.
+        - To run SVE only, build with arch="armv8.2-a-sve", arch="armv8.6-a-sve", or with multi_isa=1.
+
 - (COMPMID-6404) Under certain conditions, CLTile may produce incorrect result.
     - Versions: >= v19.02 && < v23.08
     - OSs: Linux, Android.