- Fix a crash caused by certain input devices that was introduced in Proton 4.11-4.
- Fix games running in virtual desktops and semi-transparent windows, both problems introduced in Proton 4.11-4.
- Performance optimization when using a controller on amdgpu driver.
- Improvement to fsync implementation when WINEFSYNC_SPINCOUNT is set.
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- Improve behavior of PlayStation 4 controllers and controllers connected by Bluetooth.
- More improvements to mouse capture and window focus loss behavior.
- Farming Simulator 19 is now playable.
- Fix some graphics issues in A Hat in Time and Ultimate Marvel vs Capcom 3.
- Update DXVK to v1.3.4
- Update D9VK to 0.21-rc-p.
- Update FAudio to 19.09.
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- Games will now attempt to access gamepads directly, instead of Proton emulating gamepads as if they were Xbox controllers. This means PlayStation 4 gamepads as well as fighting gamepads and other controllers will behave much more like they do on Windows. If you would like your gamepad to be emulated as if it were an Xbox controller, please use the Steam client controller mapping feature. If the controller cannot be accessed directly, due to a permissions issue, it will continue to be presented like an Xbox controller.
- fsync hang and crash fixes.
- Add support for fsync configurable spin count, might help performance but disabled by default. Try setting
WINEFSYNC_SPINCOUNT=100 - Add missing Chinese, Japanese, and Korean language font.
- Fix in-game web browser in some games including Bloons TD 6.
- Fix new crashes related to text input, especially in Unreal Engine 4 games including Mordhau and Deep Rock Galactic.
- Update D9VK to 0.20.
- Improve support for very old VR titles.
- Support for latest Steamworks and OpenVR SDK versions.
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- Update DXVK to v1.3.2.
- Update FAudio to 19.08.
- Update wine-mono to 4.9.2. This is known to fix DARK and DLC quest.
- For high framerate displays, also report a 60 FPS mode, for older games that require it.
- Earth Defense Force 5 and Earth Defense Force 4.1 will no longer freeze when prompted to input text.
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- Rebased Proton patches on top of Wine 4.11. This brings more than 3300 improvements from Wine into Proton. 154 patches from Proton 4.2 were upstreamed or are no longer needed.
- Proton now ships with D9VK v0.13f. D9VK is an experimental Vulkan-based Direct3D 9 renderer. It must be enabled by the user with the
PROTON_USE_D9VKuser setting. - Proton now includes experimental support for futex-based in-process synchronization primitives, which can reduce CPU usage compared to esync. For now, this requires special kernel support. See this forum thread for testing instructions.
- The display's current refresh rate is now reported to games.
- Update DXVK to v1.3.
- More window management and mouse cursor focus fixes.
- Fix for joystick input lag and rumble support in certain games, especially Unity titles.
- Support for the latest OpenVR SDKs.
- Update FAudio to 19.07.
- Fix for networking in GameMaker games.
- Many Wine modules are now built as Windows PE files instead of Linux libraries. As work in this area progresses, this will eventually help some DRM and anti-cheat systems. If you build Proton locally, you will likely need to re-create the Vagrant VM to build PE files.
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- Fixes for multiplayer functionality in Mordhau, SOULCALIBUR VI, and others with problems from 4.2-8.
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- Fixes for games which embed web browsers using the Steam client. For example, Football Manager 2019.
- Fix an issue with Bloodstained: Ritual of the Night and other titles crashing with an error dialog on exit.
- Upgrade wine-mono to 4.9.0, which includes winforms support. This may help some game launchers.
- Various window management and alt-tab fixes.
- Fix for controllers losing force feedback when removed and re-added.
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- Fix for performance and sound regression that affected some games, like Wolfenstein: The New Order.
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