DOC-2598: TINY-9548 Base64 URL-encoded data now properly decoded

Author: Farzad Hayatbakhsh

modules/ROOT/pages/7.6.0-release-notes.adoc

@@ -198,9 +198,13 @@ For information on using Enhanced Skins & Icon Packs, see: xref:enhanced-skins-a
 
 {productname} {release-version} also includes the following improvements:
 
-// === Base64 data was not properly decoded due to unhandled URL-encoded characters.
+=== Base64 data was not properly decoded due to unhandled URL-encoded characters.
 // #TINY-9548
 
+Previously, URL-encoded characters were not properly handled during base64 data decoding. This issue caused images to appear broken when using a base64 string as a source with URL-encoded characters.
+
+In {productname} {release-version}, this issue has been resolved by implementing logic to decode URL-encoded characters before processing the base64 string. As a result, images using base64 strings as a source will now appear correctly, even if URL-encoded characters are included.
+
 // === The `latin` list style type is now recognized as an alias for the `alpha` list style type.
 // #TINY-11515