See also:
TeamCity 8.1.4 (build 30168) Release Notes
TeamCity 8.1.3 (build 30101) Release Notes
TeamCity 8.1.2 (build 29993) Release Notes
TeamCity 8.1.1 (build 29939) Release Notes
TeamCity 8.1 Release Notes

Feature

Usability Problem

Bug

Performance Problem

Cosmetics