Via [url=http://blog.counter-strike.net/index.php/2017/04/18572/]the CS:GO blog[/url]:

[quote=Valve][ PERFECT WORLD ]
– UI and localization fixes for Perfect World Beta.
[ MISC ]
– Disabled holiday cheer.
– Fixed some exploits related to packet loss.
– Unified deploy duration for all knives to be exactly 1.0 seconds
[ MAPS ]
Militia
– Added path near CT spawn that connects to sewer and barn
– Tweaked lighting throughout map
Cbble
– Tweaked sightline in connector between underpass and Long A
– Fixed various minor bugs
Canals
– Rebuilt tunnel stairs area with smoother movement
– Fixed boat geometry overlapping a pier at CT spawn
– Fixed box intersecting windowsill at B
– Fixed pixelwalk on railing at CT spawn
– Moved plywood down on scaffolding below B to block a bad sightline
– Fixed sticky scaffolding clip brush below B
– Fixed some fade distance pop-up issues
– Added two picnic chairs at short and made clips smoother
– Removed lamp at ivy/garbage[/quote]

Rumor has it:

- Low-level changes, and translations from [url=http://translation.steampowered.com/]Translators Like You[/url] - Thank You: https://github.com/SteamDatabase/GameTracking-CSGO/commit/47b3fd5c90c1f85646efe29187f2308d0ac756e3

- Size is ~90 MB