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Java 11 by default for Gerrit
New logs timestamp format
File Uploads in frontend
Support for git protocol V2
Performance logging and tracing
The GWT UI is removed and PolyGerrit is now the only UI.
The database backend for changes, accounts, groups and projects (“ReviewDb”) is removed and all metadata is now stored in git (“NoteDb”).
New quota enforcer extension point.
Support for signed push with GPG subkeys.
New core plugins:
GWT UI is deprecated, and PolyGerrit is now the default UI.
Experimental Dark Mode in PolyGerrit.
Inline editing support in PolyGerrit UI.
Redesigned UI for PolyGerrit based on material.
New configuration option to ignore self-approval on labels.
New CommonMark/Markdown parser.
New change workflows for changes not yet ready for full review (formerly Drafts).
The new PolyGerrit UI is mature enough for most uses.
Account data is stored in NoteDb.
NoteDb for change metadata is considered stable, and new sites use it by default.
NoteDb migration for change metadata is available.
Made several improvements and additions to the documentation to help users find the information they need.
Changes can be assigned to specific users
Open and Abandoned changes can be deleted
HTML emails and new templating framework
Support for receiving review comments by email
New Polymer based user interface
Support for elliptic curve/ed25519 SSH keys
Secondary index with Elastic Search (experimental)
Support for Git LFS
Access control for git submodule subscriptions
New change submission workflows: ‘Submit Whole Topic’ and ‘Submitted Together’.
Support for GPG Keys and signed pushes.
Issue 505: Changes can be created and edited directly in the browser.
Many improvements in the new change screen.
The old change screen is removed.
Support for externally loaded plugins.
Release notes for releases prior to 2.9 can be found on the old documentation site.