chore: update external content [CI skip]

Author: github-actions[bot]

external_docs/versions/release-notes/v5-3.md

@@ -1029,7 +1029,7 @@ Post-release
 - Backported [from v6.2](v6-2#version-6.2.15) fix row context during bulk update
 - Backported [from v6.2](v6-2#version-6.2.15) fix list column order preferences
 
-### 5.3.77 (2025-09-10) - maintenance revision {#version-5.3.77}
+### 5.3.77 (2025-09-11) - maintenance revision {#version-5.3.77}
 
 - Backported [from v6.2](v6-2#version-6.2.16) fix select2 pillbox style with colored multi-enum
 - Backported [from v6.2](v6-2#version-6.2.16) removed "less" button on list edit = extended list only

external_docs/versions/release-notes/v6-3.md

@@ -31,6 +31,7 @@ These changes may require action if you are concerned:
 
 We also remind you that there have been some other compatibility breaking changes in previous minor versions:
 
+
 - See [the release note of minor version 6.0](v6-0#compatibility-breaking-changes)
 - See [the release note of minor version 6.1](v6-1#compatibility-breaking-changes)
 - See [the release note of minor version 6.2](v6-2#compatibility-breaking-changes)
@@ -51,7 +52,7 @@ We also remind you that there have been some other compatibility deprecations in
 - See [the release note of minor version 6.1](v6-1#deprecated-features)
 - See [the release note of minor version 6.2](v6-2#deprecated-features)
 
-In particular the legacy **iText** librarie will be removed in next major version v7 and there will be also breaking change impacts
+In particular the legacy **iText** library will be removed in next major version v7 and there will be also breaking change impacts
 on the associated helpers `PDFTool` and `PDFDocumentExternalObject` helper classes that are still fully designed for iText in v6.
 If you still use iText or the above helper classes in your code and plan to upgrade to v7 once it will be released
 it is now time to refactor these piece of code to use the **PDFBox** libraries (it won't compile any longer in v7).
@@ -80,10 +81,6 @@ Added context menus to lists. When multiple rows are selected, only bulk operati
 
 ![](img/v6-3/custom-right-click.gif)
 
-### Other Quality of Life improvements
-
-- On lists, <kbd>Ctrl</kbd>+<kbd>Click</kbd> to select a line
-
 ### Quick list ordering
 
 This feature allows user to reorder records using a persitent integer field of the business object.
@@ -133,6 +130,11 @@ The guide recorder is still experimental and will be improved in a future releas
 
 ![](img/v6-3/guide.gif)
 
+### Other Quality of Life improvements
+
+- On lists, <kbd>Ctrl</kbd>+<kbd>Click</kbd> to select a line
+- Added a new setting, `Display "Select All / Unselect All" option`, for lists of values, which enables a "Select All / Unselect All" feature for multiple enumeration fields
+
 Enhancements
 ------------