Plugins in category Version Control Systems Support

Changelist Organizer

Automatically organizes your modified files by moving them into predefined changelists.

Bazaar

see also details in the issue.

Git

(bundled since TeamCity 5.0).

Mercurial

(bundled since TeamCity 5.0).

Plastic SCM

by Plastic SCM producers, Codice Software.

VCS Changes Push

and a fork with TeamCity 7.x support.

Surround SCM

integration with Surround SCM version control by Seapine Software.

TFS changes push

a way to trigger TeamCity build on CheckinEvent in TFS.