Issue #192: Update TinyMCE to 8.4.0

libraries/tinymce/CHANGELOG.md

@@ -5,6 +5,36 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html),
 and is generated by [Changie](https://github.com/miniscruff/changie).
 
+## 8.4.0 - 2026-03-31
+
+### Added
+- New `view_show` option to display a specified view on initialization. #TINY-11967
+- New `errorHandler` option for `dropzone` dialog components. #TINY-13420
+- The noneditable feature can now be disabled with the new `allow_noneditable` option. #TINY-10121
+- Editor option `content_id` for uniquely identifying the edited document. #TINY-13379
+- New `table_default_header_rows` and `table_default_header_cols` options to set the default header size for new tables #TINY-13391
+
+### Improved
+- The file upload feature of `link` and `image` dialogs now provide feedback when an unsupported file type is selected. #TINY-13420
+- Directionality buttons now only appear active when directionality is set on the selected block. #TINY-13337
+- Directionality buttons now always toggle the directionality attribute on selected blocks. #TINY-13337
+
+### Changed
+- The `border-color` style with multiple rgb colors would be compressed into `border` incorrectly #TINY-13393
+- Element Path now uses the ARIA-role "group" with an aria-label #TINY-13338
+
+### Fixed
+- Now `link` dialog allows uploading empty files. #TINY-13421
+- The `link` dialog now allows uploading empty files. #TINY-13421
+- Bundled content CSS is now loaded into preview iframes. #TINY-13190
+- Attempting to remove a link after a `contentEditable="false"` element was not possible. #TINY-13108
+- Some formatting was not applied to items in multilevel list. #TINY-13324
+- Dialogs did not retain focus when using the block/unblock API. #TINY-12918
+- Setting width via Table Properties did not apply when `table_style_by_css` was `false`. #TINY-12797
+
+### Security
+- Updated DOMPurify version to 3.3.2. #TINY-14180
+
 ## 8.3.2 - 2026-01-14
 
 ### Fixed

libraries/tinymce/js/tinymce/notices.txt

@@ -4,7 +4,7 @@ Below is a list of third party libraries that this software uses:
 dompurify
 owner: Mario Heiderich
 repo: https://github.com/cure53/DOMPurify
-version: 3.2.6
+version: 3.3.2
 license: MPL-2.0 OR Apache-2.0
 
 prismjs