OBS Studio 31.0.0 Release Candidate 1 has been launched, resolving multiple issues identified in Beta 1-3. The issues identified encompass the non-appearance of a YouTube dock when switching profiles, a deadlock occurring with configured NVIDIA Audio Filters, a crash resulting from multitrack output failures, macOS crashes linked to audio device disconnections, Windows crashes during D3D12 game captures, intermittent connection errors, Decklink Input/Output complications, modifications to the Auto Configuration Wizard, scripts for reloading, and the removal of legacy QSV code.

OBS Studio 31.0.0 Release Candidate 1

Important
NVIDIA Kepler (600 and 700 series) GPUs are no longer supported for NVENC.

Note
NVIDIA users may need to update their GPU drivers to 551.76 (Windows) / 550.54.14 (Linux) or newer.

Important
The code signing certificate for OBS has been updated. This may impact game capture compatibility with some anti-cheat solutions with this OBS update. If you are a game or anti-cheat developer please see  https://obsproject.com/kb/capture-hook-certificate-update for more information.

Release Candidate 1 Changes

• Fixed an issue in Beta 1-3 causing a YouTube dock to not appear when switching to a profile where it was previously set up [shiina424]
• Fixed a possible deadlock in Beta 1-3 if any NVIDIA Audio Filters were configured [exeldro]
• Fixed a crash in Beta 1-3 if multitrack output failed to start and the user chose to continue with regular stream output [dsaedtler]
• Fixed a crash on macOS that could occur if an audio device was disconnected [jcm93]
• Fixed a crash on Windows when capturing D3D12 games [confusionattack/Lain-B]
• Fixed an issue in Beta 1-3 causing spurious connection errors when streaming Multitrack Video to Amazon IVS auto URLs [palana]
• Fixed an issue in Beta 1-3 causing Decklink Input/Output to not work [CyBeRoni]
• Fixed an issue in Beta 1-3 where the Auto Configuration Wizard would alter the stream key if Multitrack Video was enabled [dsaedtler]
• Changed scripts to correctly pass settings to modified callbacks on reload [Penwy]
• Removed legacy QSV code for old devices (Haswell or older) [RytoEX]
• Removed legacy QSV code for Windows 7 [RytoEX]

Beta 3 Changes

• Fixed a regression in Beta 1-2 causing the AUTHORS file to not load on Linux [tytan652]
• Fixed a regression in Beta 1-2 where encoders might not load correctly [PatTheMav]
• Fixed a crash in Beta 1-2 on shutdown on Linux if browser panels/docks were open [WizardCM]
• Fixed an issue in Beta 1-2 causing Frontend API events to not dispatch during application launch [PatTheMav]
• Fixed an issue in Beta 1-2 where the "Show Profile Folder" menu item behavior had changed [WizardCM]
• Fixed an issue in Beta 1-2 where websocket commands to create/delete profiles did not work [BarryCarlyon]
• Fixed a memory leak in PipeWire plugin [dimtpap]
• Fixed a crash on Linux when importing a scene collection created on Windows [SarenDev]
• Fixed a crash on Windows when capturing a Vulkan application [Charlese2]
• Fixed an issue on FreeBSD with handling SSL certificates [emaste]
• Fixed an issue with pressed button color in the Rachni theme [shiina424]
• Fixed an issue with some missing icons in the System theme [shiina424]
• Removed legacy YouTube chat [gxalpha]
• Blocked TikTok Virtual Camera from loading in OBS due to known issues [notr1ch]

Beta 2 Changes

• Fixed a regression in Beta 1 where deleting a profile or scene collection caused the last remaining item to be selected instead of the first remaining item [PatTheMav]
• Fixed a regression in Beta 1 that caused the backup scene collection file to be deleted when removing a scene collection [PatTheMav]
• Fixed a crash in Beta 1 when specifying a Profile or Scene Collection via launch parameters [PatTheMav]
• Fixed a crash in Beta 1 on FreeBSD on application launch [emaste]
• Fixed a freeze in Beta 1 on Linux when trying to close a browser panel/dock [WizardCM/tytan652]
• Fixed a failure to launch in Beta 1 on FreeBSD [emaste]
• Fixed some theme bugs in Beta 1 in Yami Light [gxalpha]
• Fixed some theme bugs in Beta 1 for the mute button [gxalpha]
• Fixed an issue in Beta 1 with groups causing coordinates to be off-canvas [derrod]
• Fixed an issue in Beta 1 with NVENC failing if b-frames were set below 4 with UHQ tuning [derrod]
• Fixed an issue in Beta 1 with the order of Profiles and Scene Collections [PatTheMav]

31.0 New Features

• Added NVIDIA Blur Filter and Background Blur [pkviet]
• Added preview scrollbars and zoom/scale indicator [cg2121/Warchamp7]
• Added v210 format support for AJA device capture [paulh-aja]
• Added Amazon IVS service integration [palana]
• Added QSV AV1 Screen Content Coding [thyintel]
• Enabled first-party YouTube Chat features [msuman-google]

31.0 Changes

• Updated the browser source/docks CEF (Chromium) to version 127 (6533) on all platforms [reitowo/WizardCM/PatTheMav/tytan652/pkviet/kkartaltepe/Lain-B]
• Changed scene items to use relative coordinates [derrod]
  • Existing scene collections will be automatically converted to use relative coordinates if the scene collection has a known output resolution set.
• Split NVIDIA Audio Effects from Noise Suppression [pkviet]
  • Existing filters will be automatically migrated.
• Changed the Image Slideshow's Playback Mode property from radio buttons to a dropdown [derrod]
• Disabled the (currently unsupported) built-in Automatic Scene Switcher when using Wayland on Linux [tytan652]
• Improved error messages for macOS Virtual Camera [jcm93]
• Changed Display and Window capture on Windows to not capture the first found display or window [Lain-B]
• Changed display and window capture on Linux to not capture implicitly [Lain-B]
• Added a warning to Window Capture when trying to capture WinUI 3 applications with BitBlt [qhy040404]
• Refactored the NVENC implementation with various improvements [derrod]
  • SDK 12.2 features, such as split encoding, are now supported.
  • Additional features from old SDKs are supported:
    • B-Frames as reference
    • Target Quality VBR mode (CQVBR)
  • A custom options field has been added to allow setting more options that don't warrant their own UI elements.
• Improved screensaver inhibit functions on Linux in Flatpak
• Removed default desktop audio device on macOS 13+ [jcm93]
• Removed NVIDIA Kepler GPU support for NVENC [derrod]
• Removed FTL support [derrod]
• Removed legacy migrations from OBS Studio 28.1 and earlier [derrod]
  • If updating from these older versions, you may wish to update to OBS Studio 30.2 first, and then update to OBS Studio 31.
• Removed support for Ubuntu 22.04 [derrod]
• Application settings have been split into "app" configuration and "user" configuration, rather than storing everything in global.ini [PatTheMav]

31.0 Bug Fixes

• Fixed two crashes with the QSV encoder on Linux [kkartaltepe]
• Fixed a crash with a race condition involving multitrack video output reconnect [dsaedtler]
• Fixed two potential crashes in Linux Window Capture [Lain-B]
• Fixed a deadlock in MP4 muxer [derrod/notr1ch]
• Fixed a deadlock when shutting down muxer [exeldro]
• Fixed a potential deadlock when stopping an encoder [derrod]
• Fixed a potential memory error and crash in text parser [fzwoch]
• Fixed a couple minor memory leaks [pkviet]
• Fixed a memory leak when playing an HDR media file [tt2468]
• Fixed an SRT listener bug where the socket was not closed properly [pkviet]
• Fixed an issue where the current scene collection could be erased to default when trying to switch to a different scene collection that's corrupted or invalid [derrod]
• Fixed a buffer overrun in UTF-8 text conversion [derrod]
• Fixed an issue that could cause bitrate spikes in QSV CBR [thyintel]
  • Note: This fix only applies to Lunar Lake or newer except Alder Lake N.
• Fixed an issue where the Auto Configuration Wizard could unintentionally enable Enhanced Broadcasting [lexano-ivs]
• Fixed issues with the audio clipping indicators displaying incorrectly on volume meters [norihiro]
• Fixed an issue causing hotkeys to register inconsistently on macOS [jcm93]
• Fixed an issue causing multitrack video output to fail if color format was set to I444 [dsaedtler]
• Fixed an issue where Custom CSS in browser sources no longer worked with certain websites (namely YouTube chat) [vvto33]
• Restored STUN support for WHIP output [mondain]

Release OBS Studio 31.0.0 Release Candidate 1 · obsproject/obs-studio