Bugs where some games could not be launched via the small blue bar have been fixed.
Note groups can now be renamed.
Real-time chat content is now persisted.
Note tabs can now be closed with the middle mouse button, or by right-clicking and selecting "close".
Source: Steam Community (opens in a new tab)
Build and release context
Recorded Steam release date:
Within one calendar day of this post (UTC). The listed date does not establish an exact launch time.