Note: I've tested this as much as I can and it's been working fine for me on several installations, but I would still recommend trying this out on a staging site first, or at the very least make a backup before trying to upgrade. The changes to "image" columns were quite intricate but hopefully I didnt miss anything.
Complete changelog
- Fix issue where "Change profile blocks" permission set to never would not hide the relevant user(groups) already-created blocks
- Clean up Javascript
- Fix compatibility with Content Blur Pro
- Stop applying user styles in the admin panel's "Staff online" widget
- Merge "Change repeat", "Change size", "Change position" permissions into "Change background" permission
- Fix issue where profile settings could not be saved due to "page_bg" triggering a false positive for an invalid color
- Allow more than just image URLs to be used for profile page header, profile navbar, and profile page background
- Create "Disallowed hosts for external images" admin option
- Allow a user to export/import their user style settings as a JSON file
- Add "cursor" to list of "Whitelisted CSS properties" admin option
- Allow choosing a solid color for postbit backgrounds
- Allow uploading images for inner-text animations instead of requiring a URL
- Create admin options for setting format & image quality of user-uploaded images (backgrounds, icons etc)
- Remove member profile name's text-stroke workaround
- Remove inner-text animations from Post Styles due to performance issues on large posts, and incompatibility with new implementation of inner-text animations
- Fix longstanding incompatibility between inner-text animations/color gradients & glows