If you experience problems with Mercurial server-side checkout after upgrade to 7.1.2, please upgrade hg-plugin as described in the http://youtrack.jetbrains.com/issue/TW-24405.
Feature
TW-18711 - Support basic HTTP authentication with Git agent checkout
TW-23333 - Support new service message for adding a build problem to the build
TW-23358 - Support NoCache Flag on NuGet installer
TW-23838 - Visual Studio plugin does not work with dotCover 2.1
TW-23878 - Display full path to internal.properties file on Internal properties tab
TW-5039 - Provide more user-friendly message for login URLs like 'localhost:8111'
TW-19518 - Display users sorted for a specific Group
TW-20877 - Atrifacts download message misleading in case of 'no space left on agent'
TW-21087 - Confusing and unclear error message of artifacts downloading: java.io.IOException: There is not enough space on the disk (jetbrains.buildServer.artifacts.ResolvingFailedException)
TW-23753 - Artifact dependency rules are collapsed to a single line on Settings tab
TW-23961 - Using version number from *.csproj or *.nuspec is too obscure
TW-21693 - Error collecting TFS changes: The cache file ...Microsoft\Team Foundation\3.0\Cache\VersionControl.config is not valid and cannot be loaded.
TW-21858 - Eclipse plugin doesn't honor "svn:ignore" when collecting changes for remote run
TW-23883 - XCode runner - upgraded to XCode 4.5 and now receiving an exception on build
TW-23899 - how to get rid of the "Error collecting changes for VCS repository"
TW-23907 - Delay in applying template changes to build configurations based on that template
TW-23911 - Unexpected error (NullPointerException) when changing user's password
TW-23913 - Failed to start build error is not displayed for default branch.
TW-23927 - Deadlock in Artifacts Guard (streams leak)
TW-23949 - EC2 Cloud agent instances fail to start after upgrade to Teamcity 7.1.1 with "You may only modify the groupSet attribute for VPC instances" message.
TW-23964 - java.lang.NumberFormatException: For input string: "NuGet Dependency Trigger"