Release 2.16.0

CHANGELOG.md

@@ -2,6 +2,25 @@
 
 All notable changes to this project will be documented in this file.
 
+## 2.16.0 - 2026-10-20
+
+### Added
+
+- Added a slide layout editor with drag/resize, pixel position and size, z-index, ratio locking, keyboard nudging, undo/redo, and reset-to-template controls. Its wide modal leaves the sidebar visible and matches the template editor's region outlines; both editors provide alignment guides and snapping, with the template snap toggle in the Designer header.
+- Added slide-specific region geometry overrides that flow through previews, playback, and thumbnails without changing sibling slides. Users with template-edit permission can apply the layout to this slide or save it to the shared template; shared saves confirm the affected-slide count, preserve region IDs and animations, clear only the current slide's geometry overrides, and reject stale templates.
+- Added a separate slide animation editor with the template's presets and advanced timing controls, plus intro/outro/attention previews on the actual slide canvas. Changes can be applied to this slide or saved to the shared template; per-region and all-region reset actions are available, and shared saves preserve slide content and sibling overrides.
+- Added consistent +/- sizing controls to HTML region editors, matching WYSIWYG regions, with the sandboxed iframe note alongside the controls.
+
+### Changed
+
+- Updated browser error pages to use a centered AdminLTE-style layout, with blue 404/other 4xx statuses, warning 403, and red 5xx statuses.
+- Slide animation overrides are now normalized as JSON objects in slide content, while legacy string values remain supported.
+
+### Fixed
+
+- Fixed region dragging and resizing when template animation metadata is null.
+- Fixed template and slide region outlines so they follow sizes below 12px, including scaled one-pixel regions, while keeping resize handles usable.
+
 ## 2.15.7 - 2026-10-19
 
 ### Fixed