Via CS:GO Blog:

GAME STATE INTEGRATION

• Added support for bomb info in GSI which can be turned on with “bomb” “1” in the configuration file.
• Added support for observer free camera information when “player_position” “1” is enabled in the configuration file.
• Added support for match round outcomes which can be turned on with “map_round_wins” “1” in the configuration file.

PERFECT WORLD

• Fixed Chinese voice audio for several character factions not playing correctly in the Perfect World version of the game.

AUDIO

• Improved quality of voice chat in the lobby.

PANORAMA

• Added cl_drawhud_specvote setting to disable vote screens when observing.
• Fixed map names displaying incorrectly in the voting panel in Chinese.
• Adjusted spectator player panel position at different HUD scales to reduce overlap with the chat.
• Fixed hostage icons under the radar not showing up if you had cl_hud_bomb_under_radar set to 0.
• Chat and voice panel spacing has been updated slightly.
• Fixed the player name in the spectator panel overlapping with the item name in rare cases.
• cl_radar_icon_scale_min max value has been increased to 1.25
• Added a con command (spec_cameraman_set_xray) that will allow setting whether the hltv cameraman is controlling the state of the x-ray or not (1 = cameraman controlled, 0 = spectator controlled).
• Scoreboard:
• Fixed 20 players not fitting in the Casual scoreboard.
• Fixed incorrect scrolling for servers with a large number of players.
• Fixed a performance issue when maxrounds is greater than 30.
• Fixed a case where old End of Match skill group and data would get reused.
• cl_mute_enemy_team now displays on avatars.