2.0.0-beta1

What's Changed

• DEP Update core dependencies for CMS 5 by @emteknetnz in #1337
• DEP Update dependencies for CMS 5 by @emteknetnz in #1342
• API Convert SecurityAdmin to be a ModelAdmin by @emteknetnz in #1359
• MNT Fix security admin behat tests by @GuySartorelli in #1370
• DEP Upgrade tinymce from 4 to 6 by @GuySartorelli in #1367
• FIX Use correct tinymce selection logic by @GuySartorelli in #1372
• ENH Implement our tinymce skin for tinymce 6 by @GuySartorelli in #1371
• API Migrate SilverStripeNagivator by @GuySartorelli in #1340
• ENH Records can be made previewable with an extension by @GuySartorelli in #1363
• FIX Set name of tinymce i18n file to be correct by @GuySartorelli in #1382
• API Strongly-type action method signatures by @emteknetnz in #1381
• MNT Remove require-dev deps by @emteknetnz in #1387
• API Stop using deprecated API by @emteknetnz in #1388
• FIX Rebuild JS bundles by @sabina-talipova in #1401
• API Stop using deprecated API by @emteknetnz in #1397
• API Remove deprecated code by @sabina-talipova in #1393
• FIX Cast absoluteUrl() argument to string by @emteknetnz in #1406
• DEP Upgrade front-end build stack by @GuySartorelli in #1389
• ENH Resolve various problems in support of fixing broken behat tests by @GuySartorelli in #1432
• MNT Add yarn lint back in by @emteknetnz in #1435
• API Remove pointless $subitem_class config by @maxime-rainville in #1440
• ENH Remove unused Translatable code by @emteknetnz in #1442
• ENH Allow base URL to not have trailing slash by @GuySartorelli in #1438
• MNT Remove legacy upgrader config by @emteknetnz in #1447
• API Remove ReturnTypeWillChange annotation by @maxime-rainville in #1434
• Support buildstack changes for other modules by @GuySartorelli in #1446
• NEW migrate functionality from security-extensions module by @GuySartorelli in #1451

Full Changelog: 1.12.1...2.0.0-beta1