OBS Studio 31.0.3

Note: 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.

Note: 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.

31.0.3 Hotfix Changes

Fixed a crash in OBS Studio 31.0.2 when attempting to log info about a browser source crash [WizardCM]
Fixed a crash on macOS if OBS used more than 8GB of memory [PatTheMav/jcm93]
Fixed a possible crash if OBS Studio was opened in Studio Mode [PatTheMav/tt2468]
Fixed a potential deadlock with browser sources on OBS shutdown [tt2468]
Fixed an issue with streams not reconnecting correctly after a disconnect [dsaedtler]
Fixed several issues with NVIDIA Background Blur [pkviet]
Fixed an issue where Video Capture Devices on macOS could be unintentionally flipped upside down [jcm93]
Fixed an issue where the Program View resolution would not update correctly [exeldro]

31.0.2 Hotfix Changes

Fixed a crash on Windows when initializing a Video Capture Device source that does not provide a valid frame size [RytoEX]
Fixed a crash on Windows when using NVIDIA Audio Effects filters with certain SDK versions [pkviet]
Fixed a crash on Windows when using obs-websocket with a config path that contained Unicode characters [PatTheMav/tt2468]
Fixed a crash on macOS when initializing a Video Capture Device source in a corrupt state [jcm93]
Fixed an issue on macOS where Python scripting would not work if Python was installed via Homebrew [jcm93]
Fixed an issue on Windows where browser sources would not recognize gamepad input if OBS Studio was not in focus [WizardCM]
Fixed an issue with browser sources where they would occasionally stutter for 250ms [reitowo/WizardCM/PatTheMav/tytan652/pkviet]
Fixed an issue on Linux where browser sources used more CPU than previous versions [tytan652]
Fixed the setting value range for NVENC target quality for AV1 [Bleuzen]
Fixed logging for NVENC lookahead values [DeeDeeG]
Added additional logging for browser sources [WizardCM/tt2468]

31.0.1 Hotfix Changes

Fixed a crash on macOS caused by hand gesture reactions [gxalpha]
Fixed a crash caused by malformed scene collection files [PatTheMav]
Fixed a possible crash on Linux when initializing PipeWire screen sharing [tytan652]
Fixed a possible deadlock and freeze on macOS while exiting OBS [izwb003]
Fixed an issue with inhibiting screensaver on Linux [tytan652]
Fixed an issue where migrated NVIDIA Audio Effects filters would not retain their position in the filter order [pkviet]
Fixed an issue where Scene Collections could have an incorrect base resolution [derrod]
Fixed an issue on Linux with Portable Mode causing the config directory to be in the wrong location [Penwy]
Fixed an issue where an Image Slideshow Source set to Random Playback Mode would stop on the last image [derrod]
Fixed a missing string for an NVENC error message [derrod]
Changed NVENC to not permit invalid custom options [derrod]

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 [tytan652]
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]
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]
Removed legacy YouTube chat [gxalpha]
Blocked TikTok Virtual Camera from loading in OBS due to known issues [notr1ch]
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 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 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 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 in PipeWire plugin [dimtpap]
Fixed a memory leak when playing an HDR media file [tt2468]
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]
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]