Via the Steam Community:

MISC

• Fixed a bug where the game would stop taking keyboard input during the end-of-match map vote.
• Fixed a bug where UI characters always had default gloves equipped.
• Demo playback will pause at the end of a recording instead of returning to the main menu.
• Minor demo playback optimizations.

WORKSHOP

• Added arms race game mode for workshop map submissions

Rumor has it:

• If VAC Live decides to terminate a competitive match for "irregular gameplay", the suspicious player and any party members they were playing with will receive a competitive cooldown

• Otherwise, not much else to this update aside from a round of new and updated translations, which are made possible in part by contributions from Translators Like You – Thank You

• Size is ~30 MB (with Workshop Tools installed)