5.0.0-rc1

What's Changed

• DEP Update core dependencies for CMS 5 by @emteknetnz in #2759
• DEP Update dependencies for CMS 5 by @emteknetnz in #2763
• Rescue Master Branch PR: MNT Use SiteTree instead of Page in tests by @GuySartorelli in #2766
• Rescue Master Branch PR: FIX Don't offer to restore to root if can_be_root is false by @GuySartorelli in #2768
• SS5: move updateRelativeLink hook after concatination by @xini in #2770
• API Rescue Master Branch PR: Remove deprecated CMSPageHistoryViewer by @GuySartorelli in #2769
• FIX Fix link plugins to support tinymce6 by @GuySartorelli in #2781
• API Migrate SilverStripeNagivator classes by @GuySartorelli in #2761
• ENH Records can be made previewable via an extension by @GuySartorelli in #2779
• API Strongly-type action method signatures by @emteknetnz in #2788
• FIX Loosen config order to allow "after: '*'" in framework by @GuySartorelli in #2793
• API Stop using deprecated API by @emteknetnz in #2794
• API Stop using deprecated API by @emteknetnz in #2799
• FIX Use orderBy() instead of sort() by @emteknetnz in #2804
• API Remove deprecated code by @sabina-talipova in #2800
• FIX Cast absoluteUrl() argument to string by @emteknetnz in #2806
• DEP Upgrade build stack by @GuySartorelli in #2795
• MNT Remove silverstripe_version file by @GuySartorelli in #2809
• MNT Fix behat test for inserting WYSIWYG links by @GuySartorelli in #2811
• Fix anchor select field component by @GuySartorelli in #2813
• MNT Add yarn lint back in by @emteknetnz in #2814
• API Remove pointless subitem_class config by @maxime-rainville in #2817
• API Deprecate legacy tasks by @emteknetnz in #2819
• API Remove deprecated CMSMain::$subitem_class config by @maxime-rainville in #2821
• API Remove legacy tasks by @emteknetnz in #2818
• ENH Remove unused Translatable code by @emteknetnz in #2820
• MNT Broken builds by @emteknetnz in #2823
• SS5: Remove trailing slash from SiteTree links if no action present by @xini in #2771
• MNT Remove legacy upgrader config by @emteknetnz in #2824
• MNT Update unit test to work with both HTML4Value and HTML5Value by @emteknetnz in #2827
• Resolve a couple of behat issues by @GuySartorelli in #2830
• MNT Get JS tests passing again by @GuySartorelli in #2834
• FIX Replace Diff class with HtmlDiff by @sabina-talipova in #2836
• API Mark moved classes in silverstripe-admin module as deprecated by @sabina-talipova in #2840
• ENH Update translations by @emteknetnz in #2841
• MNT Use gha-dispatch-ci by @emteknetnz in #2843
• MNT Update dev JS by @emteknetnz in #2847

Full Changelog: 4.12.1...5.0.0-rc1