Changelog

• #15682 - Fixes for MultiPartCompliance configuration (12.0)
• #15681 - Fix the use of quickstart with a combined base resource (12.0)
• #15680 - [12.0.x] Strengthened connection failure handling. (#15668)
• #15630 - [12.0.x] Improve *AuthenticationProtocolHandler.accept()
• #15615 - [12.0.x] Reuses URIUtil.canonicalPath() for URI matching.
• #15592 - [12.0.x] Fixes FCGI's "try-files" query handling.
• #15583 - Add additional configuration for SessionAuthentication persistence (12.0)
• #15551 - [Backport] Updating ConstraintTest
• #15550 - [Backport] Use IncludeExclude instead for Host filtering
• #15549 - [Backport] Improve IPv6 support in HttpURI