This update, like usual, is mostly bug fixes. We've also got some large internal changes that will help in the creation of future improvements.
Players will still be able to join servers that have not yet been updated.
Ragdolls used to be treated as if they had no physics on the client whilst connected to a server. This meant that player movement between clients and the server would be completely out of synch, which felt pretty bad and would cause hideous rubber-banding.
This is now fixed. You'll still run in to issues when trying to walk on non-frozen objects, but it is far better than before.
The addons menu has had a couple of additions. Firstly, there's now a search bar which can be used to search through addons that you are subscribed to.
Addons can now also be operated on in bulk. This means you can easily select and enable, disable, or uninstall multiple addons at the same time.
We've added preset support to some of the options listed in the spawnmenu's utilities tab. This means that you can save different groups of settings for later use.
Presets now also have a 'Quick Preset' button. This allows you to save the current menu's settings without having to navigate the preset editor. To use it, just click the little green button:
You can find these in most of the game's default tools.
Windows builds of the game now use the Visual Studio 2017 C++ Runtime. This should hopefully not affect anybody, but could perhaps break some third-party binary modules.
Linux builds of the game now depend on GLIBCXX 3.4.19. You may run in to some issues if your server's C++ runtime is a decade out of date. Steam should handle this for you if you're just playing the game.
OSX builds are using the same runtime as before. This will probably change in the next update.