12.0.0

What's Changed

• Add doc sets to v11 upgrade guide by @roborourke in #370
• [Backport master] Update README.md by @hm-backport in #373
• Add v11 to upgrade guides list by @roborourke in #375
• Add note on PHP 8 compat by @roborourke in #377
• Make it explicit that v11 is using 8.0 experimental by @missjwo in #379
• Update Travis file reference by @roborourke in #382
• [Backport master] s/CodeCeption/Codeception by @hm-backport in #384
• Update dependabot.yml for v11 by @roborourke in #385
• Add CI env docs by @roborourke in #386
• [Backport master] Add missing breaking changes to v10 upgrade guide by @hm-backport in #394
• [Backport v12-branch] Fix doc group admin titles and group default page ID by @hm-backport in #400
• [Backport v12-branch] Add upgrading v12 guide by @hm-backport in #402
• [Backport v12-branch] Fix tiny typo by @hm-backport in #404
• [Backport v12-branch] Replace absolute link with relative link. by @hm-backport in #408
• [Backport v12-branch] Replace composer serve with correct invocation by @hm-backport in #411

Full Changelog: 11.0.7...12.0.0