New or Updated

.NET CLI Support

(bundled since TeamCity 2017.2) The plugin brings support of .NET CLI toolchain to build .NET Core projects.

Browser notify

Browser notify is a plugin for JetBrains Teamcity server, that adds notification via web api notification mechanism.

GitHub Commit Hook

This plugin allows installing GitHub webhooks for GitHub repositories used by TeamCity VCS roots.

OAuth2 authentication

Enable GitHub or generic oAuth2 authentication to build server.

Tasks Build Runner

A plugin to identify pending tasks in the code.

JetBrains Hub

- provides integration with JetBrains Hub, allowing for single sign-on (SSO) and automatic update of user details from Hub in TeamCity.

Trac

announcement, related issue.

VersionOne

download, sources - by VersionOne.

RunAs

Adds the ability to run builds in sandboxes, under different user accounts (requires TeamCity 6.5.3).