OBS Studio 30.0 Release Candidate 1

Note: As previously announced, this release removes support for Ubuntu 20.04, Qt 5, and FFmpeg versions prior to 4.4.

RC1 Changes
-----------

* Fixed audio issues ("crackling") with Application Audio Capture on Windows (hopefully) [derrod/Logitech]
* Fixed a crash from a Beta 1 change when closing OBS while the stats window is open [notr1ch]
* Fixed a crash in Beta 3 on macOS when loading display capture settings [gxalpha]
* Fixed a crash in Beta 3 on Windows when starting multiple QSV encode sessions and then stopping one [kkartaltepe]
* Fixed a regression in Beta 1 that caused QSV CBR bitrate overshoot [RytoEX]
* Fixed a regression in Beta 1 that caused hidden browser docks to autoplay videos with audio [PatTheMav]
* Fixed a crash with QSV on Linux when starting an encoder session [kkartaltepe]
* Fixed some issues with hotkeys with groups and duplicate sceneitems [derrod]
* Fixed YouTube account login showing a message box with unclickable links on macOS [gxalpha/derrod]
* Fixed some errors showing non-clickable links [notr1ch]
* Fixed an issue with the QSV target usage setting not being migrated correctly [gxalpha]
* Fixed async sources (e.g. video capture devices) sometimes unnecessarily dropping frames while buffering is enabled [derrod]
* Fixed order of IP binding/family setting [tytan652]
* Fixed an issue with audio/video sync with WebRTC/WHIP output [Sean-Der]
* Fixed issues with context menus opening on a different display [RytoEX]
* Fixed a bug where HDR video could incorrectly produce black pixels when tonemapping [jpark37]
* Fixed v4l2 source not working correctly with certain non-standard input frame rates [kkartaltepe]
* Fixed hidden browser docks being treated as visible when the YouTube Dock is enabled [PatTheMav]
* Fixed hotkeys of different scene items for the same source not being saved correctly [derrod]
* Fixed hotkeys being lost when moving a source in or out of a group [derrod]
* Fixed a possible issue with logging high frame rate video capture devices on Linux [kkartaltepe]
* Removed D3D9 code from QSV encoder plugin [RytoEX]
* Reenabled dynamic bitrate for AMF encoders [derrod]
* Enabled "Paste Filters" after copying from scenes or mixer [gxalpha]
* Changed QSV plugin settings new to Beta 1 to use translatable strings [RytoEX]
* Exposed shader creation errors [exeldro]

Beta 3 Changes
--------------

* Fixed a crash when quickly switching between NVIDIA Audio Filters [pkviet]
* Fixed a crash on Linux with Wayland when choosing a YouTube stream [ikalnytskyi]
* Fixed a regression in Beta 1 causing service integrations to be missing in Flatpak builds [tytan652]
* Fixed a regression in Beta 1 causing the Apply button in Settings to always be enabled [derrod]
* Fixed AMD encoder settings not being saved in Simple Output Mode [tytan652]
* Fixed source type version when dropping files onto the OBS UI [norihiro]
* Fixed multiple issues with QSV on Linux [kkartaltepe]
* Fixed an issue that could cause hardware encoders not showing up as options on capable GPUs [notr1ch]
* Fixed SRT and RIST output being broken [pkviet]
* Fixed possible security certificate verification failure when trying to stream with RTMPS on macOS [PatTheMav]
* Fixed stream key tooltip being inaccurate [TianQiBuTian]
* Fixed alignment of vertical audio mixer controls [cg2121]
* Fixed alignment of status bar message [cg2121]
* Added logging for "Ignore streaming service setting recommendations" [derrod]
* Added logging for Video Capture Devices on macOS for portrait and studio light effects [gxalpha]
* Added more logging for Video Capture Device names on Windows [norihiro]
* Increased minimum output resolution to 32x32 to prevent certain encoder failure scenarios [RytoEX]

Beta 2 Changes
--------------

* Fixed a crash in Beta 1 in the Linux QSV implementation [kkartaltepe]
* Fixed a crash in Beta 1 with the YouTube Live Control Room Panel browser dock [Lain-B]
* Fixed a crash in the QSV test app [notr1ch]
* Fixed a memory leak [norihiro]
* Fixed Safe Mode being enabled after changing settings that require a restart [derrod]
* Enabled QSV encoders on Flatpak [tytan652]
* Updated NVIDIA Audio/Video Effects SDK versions [pkviet]
* Fixed Windows users getting shown the "update available" dialog despite being on the latest version [derrod]

30.0 New Features
-----------------

* Added WHIP/WebRTC output [Sean-Der / kc5nra / DDRBoxman / tt2468]
  + With the introduction of WHIP, FTL is slated for removal in a release after May 2024
* Redesigned the status bar [cg2121 / GeorgesStavracas / Warchamp7]
  + The redesigned status bar now provides the same information in a more organized and well structured way, with more representative and recognizable icons.
* Added option for Full-Height docks to the "Docks" menu [ujifgc]
  + When enabled, a dock such as chat can take up the entire height of the OBS window
* Added support Intel QSV on Linux [kkartaltepe]
* Added a shader cache to improve OBS startup time on Windows [notr1ch]
* Added application audio capture on macOS [jcm93]
* Added a "Safe Mode" that runs OBS without third-party plugins, scripting, and websockets [derrod]
  + When OBS detects that it was not shut down properly it will offer the user the option to launch in Safe Mode for troubleshooting purposes. It can also be manually activated via the "Help" menu.
* Reworked the virtual camera on macOS to work with all applications (on macOS 13 and newer) [gxalpha/PatTheMav]
* Added a YouTube Live Control Room Panel when streaming to YouTube [yuriy-chunak]
* Added 10-bit capture support for Decklink devices [jpark37]
* Added HDR playback support for Decklink output [jpark37]
* Added an option to hide OBS windows from macOS Screen Capture's "Display Capture" [PatTheMav]

30.0 Changes
------------

* Changed audio/video encoder dropdowns to be sorted by name [gxalpha]
* Changed the list of applications in the macOS Screen Capture source to be sorted by name [Colerar]
* Added more accurate logging for Hardware Accelerated GPU Scheduling status and support [derrod]
* Added the ability to arrange filters via drag & drop [cg2121]
* Enabled GPU scaling for "Rescale Output" when possible [Palana]
* Clarified surround sound warning for YouTube 5.1 audio support [pkv]
* Added warning if Lenovo Vantage is installed [notr1ch]
* Added logging for scene changes in Studio Mode [Penwy]
* Changed Video Capture Device sources on Windows to not show an audio device in the Audio Mixer if none is available/selected [Exeldro]
* Added support for grayscale MJPEG in V4L / DirectShow sources [Staacks]
* Improved settings interface of the "Text (FreeType 2)" source [gxalpha]
* Added button to reactivate stopped capture in macOS Screen Capture [gxalpha]
* Changed scene collection removal to retain a backup file (.bak) that can be easily reimported if needed [derrod]
* Added IPv6 support for RTMP streaming output with IPv4 fallback ("happy eyeballs") for dual-stack streaming services. The preferred protocol can still be selected in advanced settings. [jgh-twitch]
* Fixed virtual camera output when used with additional output channels (e.g., Downstream Keyer plugin) [tytan652]
* Added ability to set FFmpeg Options for VAAPI [nowrep]
* Added a Help menu item to view the Release Notes [WizardCM]

30.0 Bug Fixes
--------------

* Fixed a crash when using Touch Portal to control OBS [notr1ch]
* Fixed a crash when selecting a window in PipeWire capture if one is already selected [GeorgesStavracas]
* Fixed a crash on OBS shutdown on macOS [norihiro]
* Fixed a crash with the auto-config wizard [norihiro]
* Fixed a crash when trying to capture screen via PipeWire [columbarius]
* Fixed a crash when rapidly changing scenes [PatTheMav]
* Fixed checking for updates not working on Windows if the username contains special characters [derrod]
  + Affected users will have to manually update to OBS 30.0
* Removed legacy AMD encoder plugin [derrod]
  + Users upgrading from an older OBS version will continue to be able to use the old plugin
* Fixed max bitrate not working in NVENC VBR mode [flaeri]
* Fixed warnings being cut off in the UI in Simple Output Mode [gxalpha]
* Fixed the installed version number visible in Windows Settings not being updated when using the auto-updater [derrod]
* Fixed window capture showing the last frame of a closed window on Windows [Walker-WSH]
* Fixed alignment helpers rendering below safe area indicators [cg2121]
* Fixed some edge cases where certain undo/redo actions could behave in unexpected ways [derrod]
* Fixed media source restarting playback when not necessary [CodeYan01]
* Fixed frontend_save_callback in Python scripts [Penwy]
* Fixed "flip" not working with "stretch to bounds" [Penwy]
* Fixed OBS stealing focus when launching minimized [BenJuan26]
* Fixed lossless recording not working if fragmented MP4/MOV was selected [gxalpha]
* Fixed rendezvous mode with SRT [pkv]
* Fixed browser source events not being sent to all frames [Exeldro]
* Improved FFmpeg VAAPI AMD encoder video quality [nowrep]
* Fixed virtual camera not deactivating correctly in some cases [Lain-B]
* Fixed lag with VLC media source, particularly on macOS [usakhelo]
* Fixed "Show more" in service settings selecting the first service in the list [gxalpha]
* Fixed incorrectly positioned labels in a scenes-only multiview projector [norihiro]
* Fixed detected framerate of videos encoded with Custom Output (FFmpeg) [jack-karamanian]
* Fixed a bug where the "Show fullscreen and hidden windows/applications" option in macOS Screen Capture did not apply immediately [niw]
* Fixed a bug where the Auto-Configuration Wizard didn't save YouTube stream key [Lain-B]
* Fixed a bug where the OK button was enabled in the Add Source dialog if "Add Existing" was selected but no existing source was selected [gxalpha]
* Fixed a bug where using VoiceOver to toggle the "Use Different Colors" GroupBox in the Accessibility settings, the Apply button would not activate [gxalpha]
* Fixed a bug where the Auto-Configuration Wizard would show current frame rate in scientific notation if FPS was 100 or greater [gxalpha]
* Fixed an issue where importing a Streamlabs Desktop scene collection would result in OBS performing seemingly random scene changes and scene item visibility changes [prgmitchell]
* Fixed not being able to select a stream audio encoder if previous selection was invalidated [derrod]
* Fixed source transform shortcuts in context (flip, rotate, etc.) when multiple scene items are selected [gxalpha]