A new build (“1.37.6.9-beta-demo_index”) is now available in the CS:GO beta depot. This build is compatible with public matchmaking.
For instructions on how to opt into a CS:GO beta depot build, visit the following page: https://support.steampowered.com/kb_article.php?ref=9847-WHXC-7326
[DEMO PLAYBACK]
– Added a new setting “demo_index” — when enabled, playback of demo files will create full frame baselines to improve performance of seeking forward and rewinding within demo files.