AWS res documentation change

Service: res · 2026-05-16 · Documentation low

File: res/archive/release-minus-4/ug/res-troubleshooting-known-issues.md

Summary

Updated error message screenshot caption for username regex validation

Security assessment

Caption change doesn't alter the documented username security requirements or address any vulnerability. Input validation rules remain unchanged.

Diff

diff --git a/res/archive/release-minus-4/ug/res-troubleshooting-known-issues.md b/res/archive/release-minus-4/ug/res-troubleshooting-known-issues.md
index 103baaf58..c3619d93a 100644
--- a//res/archive/release-minus-4/ug/res-troubleshooting-known-issues.md
+++ b//res/archive/release-minus-4/ug/res-troubleshooting-known-issues.md
@@ -58 +58 @@ If you attempt to register AWS Cognito users through the web portal who have ema
-![](/images/res/archive/release-minus-4/ug/images/res-invalid-parameters-regex.png)
+![Error message stating username does not match regex pattern for lowercase letters, numbers, underscore, and hyphen.](/images/res/archive/release-minus-4/ug/images/res-invalid-parameters-regex.png)