Changelog for 0.4 release (#951)

* 0.4 changelog
* Updated galleries manual page

ui/v2.5/src/components/Changelog/versions/v040.md

@@ -1,15 +1,19 @@
+#### 💥 **Note: After upgrading, please [verify your stash library settings](/settings?tab=configuration) and perform a [scan](/settings?tab=tasks) to populate gallery images and the file modification times in the database. **
+
 ### ✨ New Features
 * Add selective scan.
 * Add selective export of all objects.
 * Add stash-box tagger to scenes page.
 * Add filters tab in scene page.
 * Add selectable streaming quality profiles in the scene player.
+* Add gallery metadata scraping.
 * Add scrapers list setting page.
 * Add support for individual images and manual creation of galleries.
 * Add various fields to galleries.
 * Add partial import from zip file.
 
 ### 🎨 Improvements
+* Add equals/not equals string criteria.
 * Increase page size limit to 1000 and add new page size options.
 * Add support for query URL parameter regex replacement when scraping by query URL.
 * Include empty fields in isMissing filter
@@ -25,9 +29,12 @@
 * Re-show preview thumbnail when mousing away from scene card.
 
 ### 🐛 Bug fixes
+* Changed startup behaviour to only set libraries from `STASH_STASH` environment variable if not already set.
 * Don't set default studio image during studio creation.
+* Update Freeones scraper for website update.
 * Fix invalid date tag preventing video file from being scanned.
 * Fix error when creating movie from scene scrape dialog.
 * Fix incorrect date timezone.
 * Fix search filters not persisting for studios, markers and galleries.
 * Fix pending thumbnail on wall items on mobile platforms.
+* Fix downloading and permissions for ffmpeg/ffprobe.