An update has been published for all users. This brings the multiplayer base in-sync with TF2 as of September 30th.
- Client/server memory improvements
- Fixed a client crash when switching between windowed-mode and fullscreen for Mac OS X and Linux clients
- Added experimental cpu_frequency_monitoring convar to detect thermal throttling. If you have performance problems on Windows, add "+cpu_frequency_monitoring 2" to the command line to see if CPU thermal throttling is an issue. If the displayed CPU frequency percentage drops below about 80-85% then you may have a problem with your CPU slowing down due to overheating. If it drops below 50-55% then you may have a serious problem. CPU overheating can be caused by overclocking, insufficient cooling, insufficient airflow, failing or dirty fans, or other causes. For more detail see https://support.steampowered.com/kb_article.php?ref=2715-YIPD-6873
- Fixed selecting the wrong refresh rate when running on a display that does not use the desktop refresh rate