Download Darktable 4.2.1

Version 4.2.1 of Darktable has been released. Darktable is an open source raw photo editing program, a virtual lightbox and darkroom for photo editing. It manages digital negatives via a database. The raw photo files are developed using so-called sidecar files, where the photos are edited in a non-destructive manner. The software is available for various Linux distributions, macOS and Windows. The changelog for this release can be found below.

Since darktable 4.2.0:

• Almost 300 commits to darktable+rawspeed
• 89 pull requests handled
• 18 issues closed

The Big Ones

• AFTER

Other Changes

• JPEG files are identified using magic bytes instead of file extension. This helps in cases where JPEG images end up in files with unexpected extensions.
• Allow shortcuts to be assigned to the “quick access” style and preset menus at the bottom of the darkroom view
• Add a collapsible section to the sigmoid module so that controls not used in standard processing scenarios are hidden by default.
• Some minor modifications to image overlays in culling view to make them less intrusive.

Bug fixes

• Fix possible bad pinned memory transfer on OpenCL.
• Fix bug in date/time sanitization function that caused image capture timestamps to be corrupted when they contained a time zone with a negative offset.
• Fix toast messages containing “%”.
• Fix collections module using exclude rules when the first filter is empty.
• Fix RGB curve histogram display when “compensate middle gray” is set.
• Fix possible infinite loop when a module fails to load.
• Properly honor “hide histogram” setting when restarting.
• Fix darktable chart crash.
• Fix Y0 mask calculations in the demosaic module.
• Avoid using fscanf() for loading configuration to avoid broken Windows implementation.
• Add RYB vectorscope option to the darktable configuration file to ensure proper histogram view settings on startup.
• Ensure that wide popups are properly shown on the same display as the associated widget.
• Fix possible crash in camera tethering.
• Make yes/no buttons in dialog boxes respond to standard shortcuts alt+y and alt+n.
• Fix preferences sanitization, which was completely ineffective due to incorrect loading order.
• Add a link to the sigmoid module’s online documentation.
• Fix tooltip on color calibration expander.
• Fix incorrect reporting of HEIF image bit depth, which resulted in incorrect color profile selection for images without embedded color profile data.
• Fix snapshot invalidation, which was too pessimistic and made switching snapshots slow.
• Fix some messages in LUT module.

Lua

• AFTER

Notes

• AFTER

Changed Dependencies

• Update bundled LibRaw version to 0.21.1.
• For systems providing LibRaw 0.21.1 or newer, it is now possible to disable building the bundled copy by defining -DDONT_USE_INTERNAL_LIBRAW=ON

Mandatory

• Bump minimum required CMake version from 3.10 to 3.18.

Optional

• Bump litheif minimum required version from 1.9.0 to 1.13.0.
• Relax libavif minimum required version from 0.9.1 back to 0.8.2.

RawSpeed ​​changes

• Massive Fuji decompressor refactoring, up to -25% less wall time
• Fuji GFX100(S): fix 16-bit sensor black/white levels
• Fix decoding of compressed Fuji raws with large filesize