darktable 4.2.1 released

We’re proud to announce the new bug fix release of darktable, 4.2.1!

The github release is here: https://github.com/darktable-org/darktable/releases/tag/release-4.2.1.

As always, please don’t use the autogenerated tarball provided by github, but only our tar.xz file. The checksums are:

$ sha256sum darktable-4.2.1.tar.xz
603a39c6074291a601f7feb16ebb453fd0c5b02a6f5d3c7ab6db612eadc97bac  darktable-4.2.1.tar.xz
$ sha256sum darktable-4.2.1_arm64.dmg
d037a23e8b37f6971a1f2b7c4cf3e03647b168ad2fb43080761d7a307b43048d  darktable-4.2.1_arm64.dmg
$ sha256sum darktable-4.2.1_x86_64.dmg
993a29685397c6e1a429d84be578da9271eefc06d2c75c10818ffc00b7d04a00  darktable-4.2.1_x86_64.dmg
$ sha256sum darktable-4.2.1-win64.exe
31c4d6c522818eda87e48df44f267afd531339ef9d374fa02d44891e3755f7b5  darktable-4.2.1-win64.exe

When updating from the stable 4.0.x series, please bear in mind that your edits will be preserved during this process, but the new library and configuration will no longer be usable with 4.0.x.

You are strongly advised to take a backup first.

Important note: to make sure that darktable can keep on supporting the raw file format for your camera, please read this post on how/what raw samples you can contribute to ensure that we have the full raw sample set for your camera under CC0 license!

Since darktable 4.2.0:

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

The Big Ones

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

Notes

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 libheif 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

Camera support, compared to 4.2.0

Base Support

Canon EOS Kiss X10
Canon EOS Kiss X10i
Leica M9 (dng)
Nikon Z 30 (12bit-compressed, 14bit-compressed)
OM System OM-1
OM System OM-5
Panasonic DC-G95D (4:3)
Panasonic DC-G99D (4:3)
Ricoh GR IIIx (dng)

Missing Compression Mode Support

Fujifilm “non-lossless”/lossy
Nikon high efficiency
Sony lossless

White Balance Presets

Nikon Z 9

Noise Profiles

Fujifilm GFX100S
Fujifilm X-H2
Fujifilm X-H2S
OM System OM-1
Sony ILCE-7SM3
Canon EOS 250D / Kiss X10 / Rebel SL3 / 200D Mark II
Canon EOS R7

Suspended Support

No samples on raw.pixls.us

Creo/Leaf Aptus 22(LF3779)/Hasselblad H1
Fujifilm FinePix S9600fd
Fujifilm IS-1
GoPro FUSION
Kodak EasyShare Z980
Leaf Aptus-II 5(LI300059)/Mamiya 645 AFD
Leaf Credo 60
Leaf Credo 80
Minolta DiMAGE 5
Olympus SP320
Panasonic DMC-FX150
Pentax Q10
Phase One IQ250
Samsung GX10
Samsung GX20
Samsung EK-GN120
Samsung SM-G920F
Samsung SM-G935F
Sinar Hy6/ Sinarback eXact
ST Micro STV680

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