!!ATTENTION!! Please read the release notes of 5.6.0 as well, this is just a hotfix!
Release Notes
- Fixed: Finally disabled template editor (
remove_theme_support( 'block-templates' )which is not documented) - Fixed: Editors can now save the posts again if they are allowed to use shortcodes or edit someone's post (-.-)
- Improved: Restriction of page templates on save (not great, not terrible)
- Changed: Extended contributor default capabilities