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posts by Houz

darktable 2.4.4 released

we’re proud to announce the fourth bugfix release for the 2.4 series of darktable, 2.4.4!

the github release is here: https://github.com/darktable-org/darktable/releases/tag/release-2.4.4.

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

$ sha256sum darktable-2.4.4.tar.xz
964320b8c9ffef680fa0407a6ca16ed5136ad1f449572876e262764e78acb04d darktable-2.4.4.tar.xz
$ sha256sum darktable-2.4.4.dmg
9324562c98a52346fa77314103a5874eb89bd576cdbc21fc19cb5d8dfaba307a darktable-2.4.4.dmg
$ sha256sum darktable-2.4.4-win64.exe
3763d681de4faa515049daf3dae62ee21812e8c6c206ea7a246a36c0341eca8c darktable-2.4.4-win64.exe
$ sha256sum darktable-2.4.4-win64.zip
5dba3423b0889c69f723e378564e084878b20baf3996c349bfc9736bed815067 darktable-2.4.4-win64.zip

when updating from the currently stable 2.2.x series, please bear in mind that your edits will be preserved during this process, but it will not be possible to downgrade from 2.4 to 2.2.x any more.


darktable 2.4.3 released

we’re proud to announce the third bugfix release for the 2.4 series of darktable, 2.4.3!

the github release is here: https://github.com/darktable-org/darktable/releases/tag/release-2.4.3.

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

$ sha256sum darktable-2.4.3.tar.xz
1dc5fc7bd142f4c74a5dd4706ac1dad772dfc7cd5538f033e60e3a08cfed03d3 darktable-2.4.3.tar.xz
$ sha256sum darktable-2.4.3.dmg
290ed5473e3125a9630a235a4a33ad9c9f3718f4a10332fe4fe7ae9f735c7fa9 darktable-2.4.3.1.dmg
$ sha256sum darktable-2.4.3-win64.exe
a34361924b4d7d3aa9cb4ba7e5aeef928c674822c1ea36603b4ce5993678b2fa darktable-2.4.3-win64.exe
$ sha256sum darktable-2.4.3-win64.zip
3e14579ab0da011a422cd6b95ec409565d34dd8f7084902af2af28496aead5af darktable-2.4.3-win64.zip

when updating from the currently stable 2.2.x series, please bear in mind that your edits will be preserved during this process, but it will not be possible to downgrade from 2.4 to 2.2.x any more.


darktable 2.4.2 released

we’re proud to announce the second bugfix release for the 2.4 series of darktable, 2.4.2!

the github release is here: https://github.com/darktable-org/darktable/releases/tag/release-2.4.2.

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

$ sha256sum darktable-2.4.2.tar.xz
19cccb60711ed0607ceaa844967b692a3b8666b12bf1d12f2242ec8942fa5a81 darktable-2.4.2.tar.xz
$ sha256sum darktable-2.4.2.dmg
2b0b456f6efbc05550e729a388c55e195eecc827b0b691cd42d997b026f0867c darktable-2.4.2.dmg
$ sha256sum darktable-2.4.2-win64.exe
5181dad9afd798090de8c4d54f76ee4d43cbf76ddf2734364ffec5ccb1121a34 darktable-2.4.2-win64.exe
$ sha256sum darktable-2.4.2-win64.zip
935ba4756e208369b9cabf1ca441ed0b91acb73ebf9125dcaf563210ebe4524d darktable-2.4.2-win64.zip

when updating from the currently stable 2.2.x series, please bear in mind that your edits will be preserved during this process, but it will not be possible to downgrade from 2.4 to 2.2.x any more.


darktable 2.4.1 released

we’re proud to announce the first bugfix release for the 2.4 series of darktable, 2.4.1!

the github release is here: https://github.com/darktable-org/darktable/releases/tag/release-2.4.1.

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

$ sha256sum darktable-2.4.1.tar.xz
6254c63f9b50894b3fbf431d98c0fe8ec481957ab91f9af76e33cc1201c29704 darktable-2.4.1.tar.xz
$ sha256sum darktable-2.4.1.dmg
75077f17332a6fda144125ab0f1d3dd219c214bf7602b0b252208f1ec665d031 darktable-2.4.1.dmg
$ sha256sum darktable-2.4.1-win64.exe
0be1e0dd8dec61a7cea41598c52db258edaee8783c543b4311fa0ac56ab43d2a darktable-2.4.1-win64.exe
$ sha256sum darktable-2.4.1-win64.zip
560d82e4c87c002f0284daca922023df136c822713e3670ba42358c9427fe26c darktable-2.4.1-win64.zip

when updating from the currently stable 2.2.x series, please bear in mind that your edits will be preserved during this process, but it will not be possible to downgrade from 2.4 to 2.2.x any more.


darktable 2.4.0 released

we’re proud to finally announce the new feature release of darktable, 2.4.0!

the github release is here: https://github.com/darktable-org/darktable/releases/tag/release-2.4.0.

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

$ sha256sum darktable-2.4.0.tar.xz
9d37388aee79d5ada71062bbac3cda612a61d1a781f6320b784b27308f3a1878 darktable-2.4.0.tar.xz
$ sha256sum darktable-2.4.0.dmg
70dcbec46c54f2006f2887b7ec1c9d748f9a726389d3b75cd5e081695e26394e darktable-2.4.0.dmg
$ sha256sum darktable-2.4.0-win64.exe
5b7b00a0bed8ea0d5ac45b0a0668f1998ad396e4bc3b5791e7a17f7c70b90f7c darktable-2.4.0.exe

when updating from the currently stable 2.2.x series, please bear in mind that your edits will be preserved during this process, but it will not be possible to downgrade from 2.4 to 2.2.x any more.


darktable 2.4.0rc2 released

we’re proud to announce the third release candidate for the upcoming 2.4 series of darktable, 2.4.0rc2!

the github release is here: https://github.com/darktable-org/darktable/releases/tag/release-2.4.0rc2.

as always, please don’t use the autogenerated tarball provided by github, but only our tar.xz. the checksum is:

$ sha256sum darktable-2.4.0rc2.tar.xz
dcb56e1eb2c10aa9fe64ea9ba3e806e3da3a3a0ebb47646a07e1838b88f15949 darktable-2.4.0rc1.tar.xz
$ sha256sum darktable-2.4.0rc2.dmg
5ad1c355c04d8a42bab7c2879cba92891dbdd0a89b8fe0ff2ea18f1f8b592f15 darktable-2.4.0rc1.dmg
$ sha256sum darktable-2.4.0rc2.dirty-win64.exe
a4cd63e9e44f029d4a85b430c5fdaf49e110c1ebe0a9cfc51ac2bf86ebac41cf darktable-2.4.0rc1.exe

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!

changes since rc1

  • Fix a bug in haze removal that resulted in black areas in the exported image
  • Support Sony ILCE-7RM3
  • Make calls to exiv2’s readMetadata thread safe to not crash randomly
  • Don’t hide the mode combobox in the exposure module, just disable it
  • Change the styling of insensitive bauhaus widgets
  • Fix spurious segfault in local contrast
  • Don’t show an error popup on Windows when the CD drive is empty

and the changelog as compared to 2.2.0 can be found below. Some of the fixes might have been backported to the stable 2.2.x series already.


darktable 2.4.0rc1 released

we’re proud to announce the second release candidate for the upcoming 2.4 series of darktable, 2.4.0rc1!

the github release is here: https://github.com/darktable-org/darktable/releases/tag/release-2.4.0rc1.

as always, please don’t use the autogenerated tarball provided by github, but only our tar.xz. the checksum is:

$ sha256sum darktable-2.4.0rc1.tar.xz
2b38462584223a0f74f081dc025e1811b524f403d919734a1b8c15f7c87858ea darktable-2.4.0rc1.tar.xz
$ sha256sum darktable-2.4.0rc1.dmg
??? darktable-2.4.0rc1.dmg
$ sha256sum darktable-2.4.0rc1.exe
d576071f7052d61acf35d05184d5e12c2bdedcb1dce0159668022c2e46c6467d darktable-2.4.0rc1.exe

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!

changes since rc0

  • noise profile for Nikon D4
  • Phase One IQ140 support
  • OSX packaging fixes
  • Lightroom 7 import fixes
  • Some fixes for sliders and comboboxen and grabbing the keyboard focus
  • No longer use colored sliders in the white balance module – they confused people
  • Update Catalan translation
  • Update Hungarian translation
  • Fix OpenCL on OSX
  • Bail out of darktable-cli when the XMP file is not readable
  • Fix timezone selection for geotagging on Windows
  • Canon EOS M100 supported
  • Show ratings on zoomable lighttable without a delay
  • Rely on CUPS color management when printing without configuring any color profile in darktable

and the changelog as compared to 2.2.0 can be found below. Some of the fixes might have been backported to the stable 2.2.x series already.


darktable 2.4.0rc0 released

we’re proud to announce the first release candidate for the upcoming 2.4 series of darktable, 2.4.0rc0!

the github release is here: https://github.com/darktable-org/darktable/releases/tag/release-2.4.0rc0.

as always, please don’t use the autogenerated tarball provided by github, but only our tar.xz. the checksum is:

$ sha256sum darktable-2.4.0rc0.tar.xz
66795f96dfd46b921a006836eb062f40cab1e93d018f61ccb7e650fb01a0016d darktable-2.4.0rc0.tar.xz
$ sha256sum darktable-2.4.0rc0.dmg
23894c0ec808c8420719646ee289aba68fc15761ce812358ba3456691ad5849c darktable-2.4.0rc0.dmg
$ sha256sum darktable-2.4.0rc0.exe
ed560de786340cbdd94e446615cec8eef52fbbeb3ac81f7d10edfeee1e5b74ee darktable-2.4.0rc0.exe

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!

and the changelog as compared to 2.2.0 can be found below. Some of the fixes might have been backported to the stable 2.2.x series already.


darktable for Windows

A long time ago there was a post about why we don’t have a Windows port. While I still stand by what I wrote six years ago, the times they are a-changin'.

Then two years ago there was yet another post regarding Windows. The gist of it was that the real blocker for a Windows release isn’t so much a technical one but the lack of a person (or several) dedicated to maintaining it. Not just for the moment until all the patches got merged but for the foreseeable future.


darktable 2.2.5 released

we’re proud to announce the fifth bugfix release for the 2.2 series of darktable, 2.2.5!

the github release is here: https://github.com/darktable-org/darktable/releases/tag/release-2.2.5.

as always, please don’t use the autogenerated tarball provided by github, but only our tar.xz. the checksum is:

$ sha256sum darktable-2.2.5.tar.xz
e303a42b33f78eb1f48d3b36d1df46f30873df4c5a7b49605314f61c49fbf281  darktable-2.2.5.tar.xz
$ sha256sum darktable-2.2.5.dmg
f6e8601fca9a08d988dc939484d03e137c16dface48351ef523b5e0bbbaecf18  darktable-2.2.5.dmg

Important note: to make sure that darktable can keep on supporting the raw file format for your camera, please help us by visiting https://raw.pixls.us/ and making sure that we have the full raw sample set for your camera under CC0 license!


Comments be gone

We are sorry to inform you that we had to disable comments on this website. Currently there are more than 21 thousand messages in the spam queue plus another 2.6 thousand in the review queue. There is no way we can handle those. If you want to get in touch with us then head over to the contact page and find what suits you best – mailing lists, IRC, bug tracker, … We hope to be able to get some alternative up and running, but that might take some time as it’s not really a high priority for us.


darktable 2.2.4 released

we’re proud to announce the fourth bugfix release for the 2.2 series of darktable, 2.2.4!

the github release is here: https://github.com/darktable-org/darktable/releases/tag/release-2.2.4.

as always, please don’t use the autogenerated tarball provided by github, but only our tar.xz. the checksum is:

$ sha256sum darktable-2.2.4.tar.xz
bd5445d6b81fc3288fb07362870e24bb0b5378cacad2c6e6602e32de676bf9d8  darktable-2.2.4.tar.xz
$ sha256sum darktable-2.2.4.6.dmg
b7e4aeaa4b275083fa98b2a20e77ceb3ee48af3f7cc48a89f41a035d699bd71c  darktable-2.2.4.6.dmg

Important note: to make sure that darktable can keep on supporting the raw file format for your camera, please help us by visiting https://raw.pixls.us/ and making sure that we have the full raw sample set for your camera under CC0 license!


darktable 2.2.3 released

we’re proud to announce the third bugfix release for the 2.2 series of darktable, 2.2.3!

the github release is here: https://github.com/darktable-org/darktable/releases/tag/release-2.2.3.

as always, please don’t use the autogenerated tarball provided by github, but only our tar.xz. the checksum is:

$ sha256sum darktable-2.2.3.tar.xz
1b33859585bf283577680c61e3c0ea4e48214371453b9c17a86664d2fbda48a0  darktable-2.2.3.tar.xz
$ sha256sum darktable-2.2.3.dmg
1ebe9a9905b895556ce15d556e49e3504957106fe28f652ce5efcb274dadd41c  darktable-2.2.3.dmg

Important note: to make sure that darktable can keep on supporting the raw file format for your camera, please help us by visiting https://raw.pixls.us/ and making sure that we have the full raw sample set for your camera under CC0 license!


darktable 2.2.2 released

we’re proud to announce the second bugfix release for the 2.2 series of darktable, 2.2.2!

the github release is here: https://github.com/darktable-org/darktable/releases/tag/release-2.2.2.

as always, please don’t use the autogenerated tarball provided by github, but only our tar.xz. the checksum is:

766d7d734e7bd5a33f6a6932a43b15cc88435c64ad9a0b20410ba5b4706941c2 darktable-2.2.2.tar.xz
52fd0e9a8bb74c82abdc9a88d4c369ef181ef7fe2b946723c5706d7278ff2dfb darktable-2.2.2.dmg

Important note: to make sure that darktable can keep on supporting the raw file format for your camera, please help us by visiting https://raw.pixls.us/ and making sure that we have the full raw sample set for your camera under CC0 license!


darktable 2.2.1 released

we’re proud to announce the first bugfix release for the 2.2 series of darktable, 2.2.1!

the github release is here: https://github.com/darktable-org/darktable/releases/tag/release-2.2.1.

as always, please don’t use the autogenerated tarball provided by github, but only our tar.xz. the checksum is:

$ sha256sum darktable-2.2.1.tar.xz
da843190f08e02df19ccbc02b9d1bef6bd242b81499494c7da2cccdc520e24fc  darktable-2.2.1.tar.xz
$ sha256sum darktable-2.2.1.3.dmg
9a86ed2cff453dfc0c979e802d5e467bc4974417ca462d6cbea1c3aa693b08de  darktable-2.2.1.3.dmg

and the changelog as compared to 2.2.0 can be found below.

New features:

  • Show a dialog window that tells when locking the database/library failed
  • Ask before deleting history stack from lightable.
  • preferences: make features that are not available (greyed out) more obvious

Bugfixes:

  • Always cleanup undo list before entering darkroom view. Fixes crash when using undo after re-entering darkroom
  • Darkroom: properly delete module instances. Fixes rare crashes after deleting second instance of module.
  • Levels and tonecurve modules now also use 256 bins.
  • Rawoverexposed module: fix visualization when a camera custom white balance preset is used

Base Support:

  • Canon EOS M5

darktable 2.2.0 released

we’re proud to finally announce the new feature release of darktable, 2.2.0!

the github release is here: https://github.com/darktable-org/darktable/releases/tag/release-2.2.0.

as always, please don’t use the autogenerated tarball provided by github, but only our tar.xz. the sha256 checksum is:

3eca193831faae58200bb1cb6ef29e658bce43a81706b54420953a7c33d79377  darktable-2.2.0.tar.xz
75d5f68fec755fefe6ccc82761d379b399f9fba9581c0f4c2173f6c147a0109f  darktable-2.2.0.dmg

and the changelog as compared to 2.0.0 can be found below.

when updating from the currently stable 2.0.x series, please bear in mind that your edits will be preserved during this process, but it will not be possible to downgrade from 2.2 to 2.0.x any more.


darktable 2.2.0rc3 released

we’re proud to announce the fourth release candidate of darktable 2.2.0, with some fixes over the previous release candidate.

the github release is here: https://github.com/darktable-org/darktable/releases/tag/release-2.2.0rc3.

as always, please don’t use the tarball autogenerated by github, but only our .tar.xz with the following sha256sum:

f7b9e8f5f56b2a52a4fa51e085b8aefe016ab08daf7b4a6ebf3af3464b1d2c29  darktable-2.2.0~rc3.tar.xz
86293aded568903eba3b225d680ff06bc29ea2ed678de05a0fd568aed93a0587  darktable-2.2.0.rc3.3.g9af0d4fcb.dmg

the changelog vs. the stable 2.0.x series is below:

  • Well over 2k commits since 2.0.0

The Big Ones:

Quite Interesting Changes:

  • Split the database into a library containing images and a general one with styles, presets and tags. That allows having access to those when for example running with a :memory: library
  • Support running on platforms other than x86 (64bit little-endian, currently ARM64 only) (" Running on non-x86 platforms ")
  • darktable is now happy to use smaller stack sizes (no less than 256Kb). That should allow using musl libc
  • Allow darktable-cli to work on directories
  • Allow to import/export tags from Lightroom keyword files
  • Allow using modifier keys to modify the step for sliders and curves. Defaults: Ctrl – x0.1; Shift – x10
  • Allow using the [keyboard] cursor keys to interact with sliders, comboboxes and curves; modifiers apply too
  • Support presets in “more modules” so you can quickly switch between your favorite sets of modules shown in the GUI
  • Add range operator and date compare to the collection module
  • Add basic undo/redo support for the darkroom (masks are not accounted !)
  • Support the Exif date and time when importing photos from camera
  • Input color profile module, when profile is just matrix (and linear curve), is 1/3 faster now.
  • Rudimentary CYGM and RGBE color filter array support
  • Nicer web gallery exporter – now touch friendly!
  • OpenCL implementation of VNG/VNG4 demosaicing methods
  • OpenCL implementation of Markesteijn demosaicing method for X-Trans sensors
  • Filter-out some useless EXIF tags when exporting, helps keep EXIF size under ~64Kb
  • OpenCL: properly discard CPU-based OpenCL devices. Fixes crashes on startup with some partially-working OpenCL implementations like pocl.
  • darktable-cli: do not even try to open display, we don’t need it.
  • Hotpixels module: make it actually work for X-Trans
  • Cmstest tool should now produce correct output in more cases, especially in multi-monitor setups.
  • Darkroom histogram now uses more bins: use all 8-bit of the output, not just 6.

Some More Changes, Probably Not Complete:

  • Drop darktable-viewer tool in favor of slideshow view
  • Remove gnome keyring password backend, use libsecret instead
  • When using libsecret to store passwords then put them into the correct collection
  • Hint via window manager when import/export is done
  • Quick tagging searches anywhere, not just at the start of tags
  • The sidecar XMP schema for history entries is now more consistent and less error prone
  • Rawspeed: fixes for building with libjpeg (as opposed to libjpeg-turbo)
  • Give the choice of equidistant and proportional feathering when using elliptical masks (shift+click)
  • Add geolocation to watermark variables
  • Fix some crashes with missing configured ICC profiles
  • Support greyscale color profiles
  • Make sure that proper signal handlers are still set after GM initialization…
  • OSX: add trash support (thanks to Michael Kefeder for initial patch)
  • Attach Xmp data to EXR files
  • Several fixes for HighDPI displays
  • Use Pango for text layout, thus supporting RTL languages
  • Feathering size in some mask shapes can be set with shift+scroll
  • Many bugs got fixed and some memory leaks plugged
  • The usermanual was updated to reflect the changes in the 2.2 series
  • Tone curve: mode “automatic in XYZ” mode for “scale chroma”
  • Some compilation fixes

Lua specific changes:

  • All asynchronous calls have been rewritten
  • The darktable-specific implementation of yield was removed
  • darktable.control.execute allows to execute some shell commands without blocking Lua
  • darktable.control.read allows to wait for a file to be readable without blocking Lua
  • darktable.control.sleep allows to pause the Lua execution without blocking other Lua threads
  • darktable.gui.libs.metadata_view.register_info allows to add new field to the metadata widget in the darkroom view
  • The TextView widget can now be created in Lua, allowing input of large chunks of text
  • It is now possible to use a custom widget in the Lua preference window to configure a preference
  • It is now possible to set the precision and step on slider widgets

Changed Dependencies:

  • CMake 3.0 is now required.
  • In order to compile darktable you now need at least gcc-4.7+/clang-3.3+, but better use gcc-5.0+
  • Drop support for OS X 10.6
  • Bump required libexiv2 version up to 0.24
  • Bump GTK+ requirement to gtk-3.14. (because even debian stable has it)
  • Bump GLib requirement to glib-2.40.
  • Port to OpenJPEG2
  • SDL is no longer needed.

Base Support:

  • Canon EOS-1D X Mark II
  • Canon EOS 5D Mark IV
  • Canon EOS 80D
  • Canon EOS 1300D
  • Canon EOS Kiss X80
  • Canon EOS Rebel T6
  • Canon EOS M10
  • Canon PowerShot A720 IS (dng)
  • Canon PowerShot G7 X Mark II
  • Canon PowerShot G9 X
  • Canon PowerShot SD450 (dng)
  • Canon PowerShot SX130 IS (dng)
  • Canon PowerShot SX260 HS (dng)
  • Canon PowerShot SX510 HS (dng)
  • Fujifilm FinePix S100FS
  • Fujifilm X-Pro2
  • Fujifilm X-T2
  • Fujifilm X70
  • Fujifilm XQ2
  • GITUP GIT2 (chdk-a, chdk-b)
  • (most nikon cameras here are just fixes, and they were supported before already)
  • Nikon 1 AW1 (12bit-compressed)
  • Nikon 1 J1 (12bit-compressed)
  • Nikon 1 J2 (12bit-compressed)
  • Nikon 1 J3 (12bit-compressed)
  • Nikon 1 J4 (12bit-compressed)
  • Nikon 1 J5 (12bit-compressed, 12bit-uncompressed)
  • Nikon 1 S1 (12bit-compressed)
  • Nikon 1 S2 (12bit-compressed)
  • Nikon 1 V1 (12bit-compressed)
  • Nikon 1 V2 (12bit-compressed)
  • Nikon 1 V3 (12bit-compressed, 12bit-uncompressed)
  • Nikon Coolpix A (14bit-compressed)
  • Nikon Coolpix P330 (12bit-compressed)
  • Nikon Coolpix P340 (12bit-compressed, 12bit-uncompressed)
  • Nikon Coolpix P6000 (12bit-uncompressed)
  • Nikon Coolpix P7000 (12bit-uncompressed)
  • Nikon Coolpix P7100 (12bit-uncompressed)
  • Nikon Coolpix P7700 (12bit-compressed)
  • Nikon Coolpix P7800 (12bit-compressed)
  • Nikon D1 (12bit-uncompressed)
  • Nikon D100 (12bit-compressed, 12bit-uncompressed)
  • Nikon D1H (12bit-compressed, 12bit-uncompressed)
  • Nikon D1X (12bit-compressed, 12bit-uncompressed)
  • Nikon D200 (12bit-compressed, 12bit-uncompressed)
  • Nikon D2H (12bit-compressed, 12bit-uncompressed)
  • Nikon D2Hs (12bit-compressed, 12bit-uncompressed)
  • Nikon D2X (12bit-compressed, 12bit-uncompressed)
  • Nikon D3 (14bit-compressed, 14bit-uncompressed, 12bit-compressed, 12bit-uncompressed)
  • Nikon D300 (14bit-compressed, 14bit-uncompressed, 12bit-compressed, 12bit-uncompressed)
  • Nikon D3000 (12bit-compressed)
  • Nikon D300S (14bit-compressed, 14bit-uncompressed, 12bit-compressed, 12bit-uncompressed)
  • Nikon D3100 (12bit-compressed)
  • Nikon D3200 (12bit-compressed)
  • Nikon D3300 (12bit-compressed, 12bit-uncompressed)
  • Nikon D3400 (12bit-compressed)
  • Nikon D3S (14bit-compressed, 14bit-uncompressed, 12bit-compressed, 12bit-uncompressed)
  • Nikon D3X (14bit-compressed, 14bit-uncompressed, 12bit-compressed, 12bit-uncompressed)
  • Nikon D4 (14bit-compressed, 14bit-uncompressed, 12bit-compressed, 12bit-uncompressed)
  • Nikon D40 (12bit-compressed, 12bit-uncompressed)
  • Nikon D40X (12bit-compressed, 12bit-uncompressed)
  • Nikon D4S (14bit-compressed)
  • Nikon D5 (14bit-compressed, 14bit-uncompressed, 12bit-compressed, 12bit-uncompressed)
  • Nikon D50 (12bit-compressed)
  • Nikon D500 (14bit-compressed, 12bit-compressed)
  • Nikon D5000 (12bit-compressed, 12bit-uncompressed)
  • Nikon D5100 (14bit-compressed, 14bit-uncompressed)
  • Nikon D5200 (14bit-compressed)
  • Nikon D5300 (12bit-uncompressed, 14bit-compressed, 14bit-uncompressed)
  • Nikon D5500 (12bit-uncompressed, 14bit-compressed, 14bit-uncompressed)
  • Nikon D60 (12bit-compressed, 12bit-uncompressed)
  • Nikon D600 (14bit-compressed, 12bit-compressed)
  • Nikon D610 (14bit-compressed, 12bit-compressed)
  • Nikon D70 (12bit-compressed)
  • Nikon D700 (12bit-compressed, 12bit-uncompressed, 14bit-compressed)
  • Nikon D7000 (14bit-compressed, 12bit-compressed)
  • Nikon D70s (12bit-compressed)
  • Nikon D7100 (14bit-compressed, 12bit-compressed)
  • Nikon D80 (12bit-compressed, 12bit-uncompressed)
  • Nikon D800 (14bit-compressed, 12bit-compressed, 12bit-uncompressed)
  • Nikon D800E (14bit-compressed, 12bit-compressed, 12bit-uncompressed)
  • Nikon D90 (12bit-compressed, 12bit-uncompressed)
  • Nikon Df (14bit-compressed, 14bit-uncompressed, 12bit-compressed, 12bit-uncompressed)
  • Nikon E5400 (12bit-uncompressed)
  • Nikon E5700 (12bit-uncompressed)
  • Olympus PEN-F
  • OnePlus One (dng)
  • Panasonic DMC-FZ150 (1:1, 16:9)
  • Panasonic DMC-FZ18 (16:9, 3:2)
  • Panasonic DMC-FZ300 (4:3)
  • Panasonic DMC-FZ50 (16:9, 3:2)
  • Panasonic DMC-G8 (4:3)
  • Panasonic DMC-G80 (4:3)
  • Panasonic DMC-G81 (4:3)
  • Panasonic DMC-G85 (4:3)
  • Panasonic DMC-GX80 (4:3)
  • Panasonic DMC-GX85 (4:3)
  • Panasonic DMC-LX3 (1:1)
  • Panasonic DMC-LX10 (3:2)
  • Panasonic DMC-LX15 (3:2)
  • Panasonic DMC-LX9 (3:2)
  • Panasonic DMC-TZ100 (3:2)
  • Panasonic DMC-TZ101 (3:2)
  • Panasonic DMC-TZ110 (3:2)
  • Panasonic DMC-ZS110 (3:2)
  • Pentax K-1
  • Pentax K-70
  • Samsung GX20 (dng)
  • Sony DSC-F828
  • Sony DSC-RX100M5
  • Sony DSC-RX10M3
  • Sony DSLR-A380
  • Sony ILCA-68
  • Sony ILCA-99M2
  • Sony ILCE-6300

We were unable to bring back these 2 cameras, because we have no samples.


darktable 2.2.0rc2 released

we’re proud to announce the third release candidate of darktable 2.2.0, with some fixes over the previous release candidate.

the github release is here: https://github.com/darktable-org/darktable/releases/tag/release-2.2.0rc2.

as always, please don’t use the tarball autogenerated by github, but only our .tar.xz with the following sha256sum:

f3ed739f79858a1ce2b3746bbab11994f5fb38db6e96941d84ba475beab890a6  darktable-2.2.0.rc2.tar.xz
5d91cfd1622fb82e8f59db912e8b784a36b83f4a06d179e906f437104edc96f1  darktable-2.2.0.rc2.39.g684e8af41.dmg

the changelog vs. the stable 2.0.x series is below:

  • Well over 2k commits since 2.0.0

The Big Ones:

Quite Interesting Changes:

  • Split the database into a library containing images and a general one with styles, presets and tags. That allows having access to those when for example running with a :memory: library
  • Support running on platforms other than x86 (64bit little-endian, currently ARM64 only) (" Running on non-x86 platforms ")
  • darktable is now happy to use smaller stack sizes (no less than 256Kb). That should allow using musl libc
  • Allow darktable-cli to work on directories
  • Allow to import/export tags from Lightroom keyword files
  • Allow using modifier keys to modify the step for sliders and curves. Defaults: Ctrl – x0.1; Shift – x10
  • Allow using the [keyboard] cursor keys to interact with sliders, comboboxes and curves; modifiers apply too
  • Support presets in “more modules” so you can quickly switch between your favorite sets of modules shown in the GUI
  • Add range operator and date compare to the collection module
  • Add basic undo/redo support for the darkroom (masks are not accounted !)
  • Support the Exif date and time when importing photos from camera
  • Input color profile module, when profile is just matrix (and linear curve), is 1/3 faster now.
  • Rudimentary CYGM and RGBE color filter array support
  • Nicer web gallery exporter – now touch friendly!
  • OpenCL implementation of VNG/VNG4 demosaicing methods
  • OpenCL implementation of Markesteijn demosaicing method for X-Trans sensors
  • Filter-out some useless EXIF tags when exporting, helps keep EXIF size under ~64Kb
  • OpenCL: properly discard CPU-based OpenCL devices. Fixes crashes on startup with some partially-working OpenCL implementations like pocl.
  • darktable-cli: do not even try to open display, we don’t need it.
  • Hotpixels module: make it actually work for X-Trans
  • Cmstest tool should now produce correct output in more cases, especially in multi-monitor setups.
  • Darkroom histogram now uses more bins: use all 8-bit of the output, not just 6.

Some More Changes, Probably Not Complete:

  • Drop darktable-viewer tool in favor of slideshow view
  • Remove gnome keyring password backend, use libsecret instead
  • When using libsecret to store passwords then put them into the correct collection
  • Hint via window manager when import/export is done
  • Quick tagging searches anywhere, not just at the start of tags
  • The sidecar XMP schema for history entries is now more consistent and less error prone
  • Rawspeed: fixes for building with libjpeg (as opposed to libjpeg-turbo)
  • Give the choice of equidistant and proportional feathering when using elliptical masks (shift+click)
  • Add geolocation to watermark variables
  • Fix some crashes with missing configured ICC profiles
  • Support greyscale color profiles
  • Make sure that proper signal handlers are still set after GM initialization…
  • OSX: add trash support (thanks to Michael Kefeder for initial patch)
  • Attach Xmp data to EXR files
  • Several fixes for HighDPI displays
  • Use Pango for text layout, thus supporting RTL languages
  • Feathering size in some mask shapes can be set with shift+scroll
  • Many bugs got fixed and some memory leaks plugged
  • The usermanual was updated to reflect the changes in the 2.2 series
  • Tone curve: mode “automatic in XYZ” mode for “scale chroma”
  • Some compilation fixes

Lua specific changes:

  • All asynchronous calls have been rewritten
  • The darktable-specific implementation of yield was removed
  • darktable.control.execute allows to execute some shell commands without blocking Lua
  • darktable.control.read allows to wait for a file to be readable without blocking Lua
  • darktable.control.sleep allows to pause the Lua execution without blocking other Lua threads
  • darktable.gui.libs.metadata_view.register_info allows to add new field to the metadata widget in the darkroom view
  • The TextView widget can now be created in Lua, allowing input of large chunks of text
  • It is now possible to use a custom widget in the Lua preference window to configure a preference
  • It is now possible to set the precision and step on slider widgets

Changed Dependencies:

  • CMake 3.0 is now required.
  • In order to compile darktable you now need at least gcc-4.7+/clang-3.3+, but better use gcc-5.0+
  • Drop support for OS X 10.6
  • Bump required libexiv2 version up to 0.24
  • Bump GTK+ requirement to gtk-3.14. (because even Debian stable has it)
  • Bump GLib requirement to glib-2.40.
  • Port to OpenJPEG2
  • SDL is no longer needed.

Base Support

  • Canon EOS-1D X Mark II
  • Canon EOS 5D Mark IV
  • Canon EOS 80D
  • Canon EOS 1300D
  • Canon EOS Kiss X80
  • Canon EOS Rebel T6
  • Canon EOS M10
  • Canon PowerShot A720 IS (dng)
  • Canon PowerShot G7 X Mark II
  • Canon PowerShot G9 X
  • Canon PowerShot SD450 (dng)
  • Canon PowerShot SX130 IS (dng)
  • Canon PowerShot SX260 HS (dng)
  • Canon PowerShot SX510 HS (dng)
  • Fujifilm FinePix S100FS
  • Fujifilm X-Pro2
  • Fujifilm X-T2
  • Fujifilm X70
  • Fujifilm XQ2
  • GITUP GIT2 (chdk-a, chdk-b)
  • (most nikon cameras here are just fixes, and they were supported before already)
  • Nikon 1 AW1 (12bit-compressed)
  • Nikon 1 J1 (12bit-compressed)
  • Nikon 1 J2 (12bit-compressed)
  • Nikon 1 J3 (12bit-compressed)
  • Nikon 1 J4 (12bit-compressed)
  • Nikon 1 J5 (12bit-compressed, 12bit-uncompressed)
  • Nikon 1 S1 (12bit-compressed)
  • Nikon 1 S2 (12bit-compressed)
  • Nikon 1 V1 (12bit-compressed)
  • Nikon 1 V2 (12bit-compressed)
  • Nikon 1 V3 (12bit-compressed, 12bit-uncompressed)
  • Nikon Coolpix A (14bit-compressed)
  • Nikon Coolpix P330 (12bit-compressed)
  • Nikon Coolpix P340 (12bit-compressed, 12bit-uncompressed)
  • Nikon Coolpix P6000 (12bit-uncompressed)
  • Nikon Coolpix P7000 (12bit-uncompressed)
  • Nikon Coolpix P7100 (12bit-uncompressed)
  • Nikon Coolpix P7700 (12bit-compressed)
  • Nikon Coolpix P7800 (12bit-compressed)
  • Nikon D1 (12bit-uncompressed)
  • Nikon D100 (12bit-compressed, 12bit-uncompressed)
  • Nikon D1H (12bit-compressed, 12bit-uncompressed)
  • Nikon D1X (12bit-compressed, 12bit-uncompressed)
  • Nikon D200 (12bit-compressed, 12bit-uncompressed)
  • Nikon D2H (12bit-compressed, 12bit-uncompressed)
  • Nikon D2Hs (12bit-compressed, 12bit-uncompressed)
  • Nikon D2X (12bit-compressed, 12bit-uncompressed)
  • Nikon D3 (14bit-compressed, 14bit-uncompressed, 12bit-compressed, 12bit-uncompressed)
  • Nikon D300 (14bit-compressed, 14bit-uncompressed, 12bit-compressed, 12bit-uncompressed)
  • Nikon D3000 (12bit-compressed)
  • Nikon D300S (14bit-compressed, 14bit-uncompressed, 12bit-compressed, 12bit-uncompressed)
  • Nikon D3100 (12bit-compressed)
  • Nikon D3200 (12bit-compressed)
  • Nikon D3300 (12bit-compressed, 12bit-uncompressed)
  • Nikon D3400 (12bit-compressed)
  • Nikon D3S (14bit-compressed, 14bit-uncompressed, 12bit-compressed, 12bit-uncompressed)
  • Nikon D3X (14bit-compressed, 14bit-uncompressed, 12bit-compressed, 12bit-uncompressed)
  • Nikon D4 (14bit-compressed, 14bit-uncompressed, 12bit-compressed, 12bit-uncompressed)
  • Nikon D40 (12bit-compressed, 12bit-uncompressed)
  • Nikon D40X (12bit-compressed, 12bit-uncompressed)
  • Nikon D4S (14bit-compressed)
  • Nikon D5 (14bit-compressed, 14bit-uncompressed, 12bit-compressed, 12bit-uncompressed)
  • Nikon D50 (12bit-compressed)
  • Nikon D500 (14bit-compressed, 12bit-compressed)
  • Nikon D5000 (12bit-compressed, 12bit-uncompressed)
  • Nikon D5100 (14bit-compressed, 14bit-uncompressed)
  • Nikon D5200 (14bit-compressed)
  • Nikon D5300 (12bit-uncompressed, 14bit-compressed, 14bit-uncompressed)
  • Nikon D5500 (12bit-uncompressed, 14bit-compressed, 14bit-uncompressed)
  • Nikon D60 (12bit-compressed, 12bit-uncompressed)
  • Nikon D600 (14bit-compressed, 12bit-compressed)
  • Nikon D610 (14bit-compressed, 12bit-compressed)
  • Nikon D70 (12bit-compressed)
  • Nikon D700 (12bit-compressed, 12bit-uncompressed, 14bit-compressed)
  • Nikon D7000 (14bit-compressed, 12bit-compressed)
  • Nikon D70s (12bit-compressed)
  • Nikon D7100 (14bit-compressed, 12bit-compressed)
  • Nikon D80 (12bit-compressed, 12bit-uncompressed)
  • Nikon D800 (14bit-compressed, 12bit-compressed, 12bit-uncompressed)
  • Nikon D800E (14bit-compressed, 12bit-compressed, 12bit-uncompressed)
  • Nikon D90 (12bit-compressed, 12bit-uncompressed)
  • Nikon Df (14bit-compressed, 14bit-uncompressed, 12bit-compressed, 12bit-uncompressed)
  • Nikon E5400 (12bit-uncompressed)
  • Nikon E5700 (12bit-uncompressed)
  • Olympus PEN-F
  • OnePlus One (dng)
  • Panasonic DMC-FZ150 (1:1, 16:9)
  • Panasonic DMC-FZ18 (16:9, 3:2)
  • Panasonic DMC-FZ300 (4:3)
  • Panasonic DMC-FZ50 (16:9, 3:2)
  • Panasonic DMC-G8 (4:3)
  • Panasonic DMC-G80 (4:3)
  • Panasonic DMC-GX80 (4:3)
  • Panasonic DMC-GX85 (4:3)
  • Panasonic DMC-LX3 (1:1)
  • Panasonic DMC-LX10 (3:2)
  • Panasonic DMC-LX15 (3:2)
  • Panasonic DMC-LX9 (3:2)
  • Pentax K-1
  • Pentax K-70
  • Samsung GX20 (dng)
  • Sony DSC-F828
  • Sony DSC-RX10M3
  • Sony DSLR-A380
  • Sony ILCA-68
  • Sony ILCE-6300

We were unable to bring back these 3 cameras, because we have no samples.


String freeze for the upcoming 2.2 series

This is a call for all our translators, now is the time to bring your .po file in the master branch up to date. We will not ship any translation that is not relatively complete, the exact threshold is still to be determined.

As a quick reminder, these are the steps to update the translation if you are working from git. language_code is not the whole filename of the po file but just the first part of it. For example, when for Italian the language code is it while the filename is it.po. You also have to compile darktable before updating your .po file as some of the translated files are auto-generated.


darktable 2.2.0rc1 released

we’re proud to announce the second release candidate of darktable 2.2.0, with some fixes over the previous release candidate. the most important one might be bringing back read support for very old xmp files (~4 years).

the github release is here: https://github.com/darktable-org/darktable/releases/tag/release-2.2.0rc1.

as always, please don’t use the tarball autogenerated by github, but only our .tar.xz with the following sha256sum:

0612163b0020bc3326909f6d7f7cbd8cfb5cff59b8e0ed1a9e2a2aa17d8f308e  darktable-2.2.0~rc1.tar.xz

the changelog vs. the stable 2.0.x series is below:


darktable 2.2.0rc0 released

we’re proud to announce the first release candidate for the upcoming 2.2 series of darktable, 2.2.0rc0!

the github release is here: https://github.com/darktable-org/darktable/releases/tag/release-2.2.0rc0.

as always, please don’t use the autogenerated tarball provided by github, but only our tar.xz. the checksum is:

a084ef367b1a1b189ad11a6300f7e0cadb36354d11bf0368de7048c6a0732229 darktable-2.2.0~rc0.tar.xz

and the changelog as compared to 2.0.0 can be found below.

  • Well over 2 thousand commits since 2.0.0

The Big Ones:

Quite Interesting Changes:

  • Split the database into a library containing images and a general one with styles, presets and tags. That allows having access to those when for example running with a :memory: library
  • Support running on platforms other than x86 (64bit little-endian, currently ARM64 only) (" Running on non-x86 platforms ")
  • darktable is now happy to use smaller stack sizes. That should allow using musl libc
  • Allow darktable-cli to work on directories
  • Allow to import/export tags from Lightroom keyword files
  • Allow using modifier keys to modify the step for sliders and curves. Defaults: Ctrl – x0.1; Shift – x10
  • Allow using the [keyboard] cursor keys to interact with sliders, comboboxes and curves; modifiers apply too
  • Support presets in “more modules” so you can quickly switch between your favorite sets of modules shown in the GUI
  • Add range operator and date compare to the collection module
  • Support the Exif date and time when importing photos from camera
  • Rudimentary CYGM and RGBE color filter array support
  • Preview pipe now does run demosaic module too, and its input is no longer pre-demosaiced, but is just downscaled without demosaicing it at the same time.
  • Nicer web gallery exporter – now touch friendly!
  • OpenCL implementation of VNG/VNG4 demosaicing methods
  • OpenCL implementation of Markesteijn demosaicing method for X-Trans sensors
  • Filter-out some useless EXIF tags when exporting, helps keep EXIF size under ~64Kb
  • OpenCL: properly discard CPU-based OpenCL devices. Fixes crashes on startup with some partially-working OpenCL implementations like pocl.
  • darktable-cli: do not even try to open display, we don’t need it.
  • Hotpixels module: make it actually work for X-Trans

Some More Changes, Probably Not Complete:

  • Drop darktable-viewer tool in favor of slideshow view
  • Remove gnome keyring password backend, use libsecret instead
  • When using libsecret to store passwords then put them into the correct collection
  • Hint via window manager when import/export is done
  • Quick tagging searches anywhere, not just at the start of tags
  • The sidecar Xmp schema for history entries is now more consistent and less error prone
  • Rawspeed: fixes for building with libjpeg (as opposed to libjpeg-turbo)
  • Give the choice of equidistant and proportional feathering when using elliptical masks
  • Add geolocation to watermark variables
  • Fix some crashes with missing configured ICC profiles
  • Support greyscale color profiles
  • OSX: add trash support (thanks to Michael Kefeder for initial patch)
  • Attach Xmp data to EXR files
  • Several fixes for HighDPI displays
  • Use Pango for text layout, thus supporting RTL languages
  • Many bugs got fixed and some memory leaks plugged
  • The usermanual was updated to reflect the changes in the 2.2 series

Changed Dependencies:

  • CMake 3.0 is now required.
  • In order to compile darktable you now need at least gcc-4.7+/clang-3.3+, but better use gcc-5.0+
  • Drop support for OS X 10.6
  • Bump required libexiv2 version up to 0.24
  • Bump GTK+ requirement to gtk-3.14. (because even Debian/stable has it)
  • Bump GLib requirement to glib-2.40.
  • Port to OpenJPEG2
  • SDL is no longer needed.

A special note to all the darktable Fedora users: Fedora-provided darktable packages are intentionally built with Lua disabled. Thus, Lua scripting will not work. This breaks e.g. darktable-gimp integration. Please bug Fedora. In the mean time you could fix that by self-compiling darktable (pass -DDONT_USE_INTERNAL_LUA=OFF to cmake in order to enable use of bundled Lua5.2.4).


darktable 2.0.7 released

we’re proud to announce the seventh bugfix release for the 2.0 series of darktable, 2.0.7!

the github release is here: https://github.com/darktable-org/darktable/releases/tag/release-2.0.7.

as always, please don’t use the autogenerated tarball provided by github, but only our tar.xz. the checksum is:

a9226157404538183549079e3b8707c910fedbb669bd018106bdf584b88a1dab  darktable-2.0.7.tar.xz
0b341f3f753ae0715799e422f84d8de8854d8b9956dc9ce5da6d5405586d1392  darktable-2.0.7.dmg

and the changelog as compared to 2.0.6 can be found below.

New Features

  • Filter-out some EXIF tags when exporting. Helps keep metadata size below max limit of ~64Kb
  • Support the new Canon EOS 80D {m,s}RAW format
  • Always show rendering intent selector in lighttable view
  • Clear elevation when clearing geo data in map view
  • Temperature module, invert module: add SSE vectorization for X-Trans
  • Temperature module: add keyboard shortcuts for presets

Bugfixes

  • Rawspeed: fixes for building with libjpeg (as opposed to libjpeg-turbo)
  • OpenCL: always use blocking memory transfer hostdevice
  • OpenCL: remove bogus static keyword in extended.cl
  • Fix crash with missing configured display profile
  • Histogram: always show aperture with one digit after dot
  • Show if OpenEXR is supported in --version
  • Rawspeed: use a non-deprecated way of getting OSX version
  • Don’t show bogus message about local copy when trying to delete physically deleted image

Base Support (newly added or small fixes)

  • Canon EOS 100D
  • Canon EOS 300D
  • Canon EOS 6D
  • Canon EOS 700D
  • Canon EOS 80D (sRaw1, sRaw2)
  • Canon PowerShot A720 IS (dng)
  • Fujifilm FinePix S100FS
  • Nikon D3400 (12bit-compressed)
  • Panasonic DMC-FZ300 (4:3)
  • Panasonic DMC-G8 (4:3)
  • Panasonic DMC-G80 (4:3)
  • Panasonic DMC-GX80 (4:3)
  • Panasonic DMC-GX85 (4:3)
  • Pentax K-70

Base Support (fixes, was broken in 2.0.6, apologies for inconvenience)

  • Nikon 1 AW1
  • Nikon 1 J1 (12bit-compressed)
  • Nikon 1 J2 (12bit-compressed)
  • Nikon 1 J3
  • Nikon 1 J4
  • Nikon 1 S1 (12bit-compressed)
  • Nikon 1 S2
  • Nikon 1 V1 (12bit-compressed)
  • Nikon 1 V2
  • Nikon Coolpix A (14bit-compressed)
  • Nikon Coolpix P330 (12bit-compressed)
  • Nikon Coolpix P6000
  • Nikon Coolpix P7000
  • Nikon Coolpix P7100
  • Nikon Coolpix P7700 (12bit-compressed)
  • Nikon Coolpix P7800 (12bit-compressed)
  • Nikon D1
  • Nikon D3 (12bit-compressed, 12bit-uncompressed)
  • Nikon D3000 (12bit-compressed)
  • Nikon D3100
  • Nikon D3200 (12bit-compressed)
  • Nikon D3S (12bit-compressed, 12bit-uncompressed)
  • Nikon D4 (12bit-compressed, 12bit-uncompressed)
  • Nikon D5 (12bit-compressed, 12bit-uncompressed)
  • Nikon D50
  • Nikon D5100
  • Nikon D5200
  • Nikon D600 (12bit-compressed)
  • Nikon D610 (12bit-compressed)
  • Nikon D70
  • Nikon D7000
  • Nikon D70s
  • Nikon D7100 (12bit-compressed)
  • Nikon E5400
  • Nikon E5700 (12bit-uncompressed)

We were unable to bring back these 4 cameras, because we have no samples. If anyone reading this owns such a camera, please do consider providing samples.


darktable 2.0.6 released

we’re proud to announce the sixth bugfix release for the 2.0 series of darktable, 2.0.6!

the github release is here: https://github.com/darktable-org/darktable/releases/tag/release-2.0.6.

as always, please don’t use the autogenerated tarball provided by github, but only our tar.xz. the checksum is:

2368c1865221032061645342ba8c00bcd6d224e9829a55bc610e6cb67de738c1  darktable-2.0.6.tar.xz
8376ab1bb74f4a25998ff1a7f03c8498b57064bf27700c9af53a7356e5a2ee1e  darktable-2.0.6.dmg

and the changelog as compared to 2.0.5 can be found below.

New Features

  • Jpeg format writer: use libexiv2 to write metadata, like with other formats
  • Accept non-mosaiced raw files with 4 channels, assume they are RGBA (alpha channel is ignored)

Bugfixes

  • Once again, fix for yet another gtk theming regression…
  • OpenCL: properly discard CPU-based OpenCL devices. Fixes crashes on startup with some broken OpenCL implementations like pocl.
  • darktable-cli: do not even try to open display, we don’t need it.
  • Rawspeed: NikonDecoder: stop accepting generic camera entries. Fixes multitude of Nikon raw loading issues.
  • OpenCL: fix border handling in crop&rotate module
  • Hotpixels iop: make it actually work for X-Trans
  • Clipping IOP: scale width of gray crop path with zoom level
  • One more fixup to canon lens name reading from exif
  • Fixup Bayer pattern for Olympus SP570UZ
  • Fix internal build issue: do not assume that Perl’s @INC contains ‘.’

Base Support

  • Canon EOS-1D X Mark II
  • Canon EOS 1300D
  • Canon EOS Kiss X80
  • Canon EOS Rebel T6
  • Canon EOS M10
  • Canon PowerShot G7 X Mark II
  • Canon PowerShot G9 X
  • Fujifilm X-T2
  • GITUP GIT2 action camera
  • Panasonic DMC-FZ18 (16:9, 3:2)
  • Panasonic DMC-FZ50 (16:9, 3:2)
  • Pentax K-1
  • Sony DSLR-A380
  • Sony ILCE-6300
  • Nikon D500
  • Some other whitelevel fixups for some other Nikon cameras (in particular, mostly for 12-bit and not compressed raws)

White Balance Presets

  • Canon EOS-1D X Mark II
  • Canon EOS 1300D
  • Canon EOS Kiss X80
  • Canon EOS Rebel T6
  • Canon EOS M10
  • Canon PowerShot G7 X Mark II
  • Fujifilm X-T10
  • Sony ILCE-6300

Translations Updates

  • Slovak

darktable 2.0.5 released

we’re proud to announce the fifth bugfix release for the 2.0 series of darktable, 2.0.5!

the github release is here: https://github.com/darktable-org/darktable/releases/tag/release-2.0.5.

as always, please don’t use the autogenerated tarball provided by github, but only our tar.xz. the checksum is:

$ sha256sum darktable-2.0.5.tar.xz
898b71b94e7ef540eb1c87c829daadc8d8d025b1705d4a9471b1b9ed91b90a02 darktable-2.0.5.tar.xz
$ sha256sum darktable-2.0.5.dmg
e0ae0e5e19771810a80d6851e022ad5e51fb7da75dcbb98d96ab5120b38955fd  darktable-2.0.5.dmg

and the changelog as compared to 2.0.4 can be found below.

New Features

  • Add geolocation to watermark variables

Bugfixes

  • Mac: bugfix + build fix
  • Lua: fixed dt.collection not working
  • Fix softproofing with some internal profiles
  • Fix non-working libsecret pwstorage backend
  • Fixed a few issues within (rudimentary) lightroom import
  • Some fixes related to handling of duplicates and/or tags

Base Support

  • Canon EOS 80D (no mRAW/sRAW support!)

White Balance Presets

  • Canon EOS 80D

Noise Profiles

  • Canon EOS 80D

Translations Updates

  • Danish
  • German
  • Slovak

darktable 2.0.4 released

we’re proud to announce the fourth bugfix release for the 2.0 series of darktable, 2.0.4!

the github release is here: https://github.com/darktable-org/darktable/releases/tag/release-2.0.4.

as always, please don’t use the autogenerated tarball provided by github, but only our tar.xz. the checksum is:

$ sha256sum darktable-2.0.4.tar.xz
80e448622ff060bca1d64bf6151c27de34dea8fe6b7ddb708e1e3526a5961e62  darktable-2.0.4.tar.xz
$ sha256sum darktable-2.0.4.dmg
1e6306f623c3743fabe88312d34376feae94480eb5a38858f21751da04ac4550  darktable-2.0.4.dmg

and the changelog as compared to 2.0.3 can be found below.

New Features

  • Support grayscale input profiles
  • Add a BRG profile for testing purposes

Bugfixes

  • Fix the GUI with GTK 3.20
  • Fix the color profiles we ship
  • Fix two deflicker (exposure iop, mode = automatic) issues
  • Fix trashing of files on OSX
  • Fix Rights field in Lua

Base Support

  • Nikon D5
  • Sony ILCA-68

White Balance Presets

  • Pentax K-S1
  • Sony ILCA-68

Noise Profiles

  • Canon PowerShot G15
  • Fujifilm X70
  • Olympus PEN-F
  • Panasonic DMC-GF7

Translation Added

  • Slovenian

Translations Updates

  • Catalan
  • Dutch
  • German
  • Hebrew
  • Slovak
  • Spanish

Running on non-x86 platforms

For many years darktable would only run on x86 CPUs that also support at least SSE2. While that is nowadays almost everything looking like a PC it’s still limiting. Consequently Roman sat down and started work on dropping that hard requirement. While his work isn’t complete yet it’s definitely becoming useful. So with a little tweaking you can for example use the development versions on an ARM, like the Raspberry Pi. Together with a touchscreen that has the potential to make a fun little package.


darktable 2.0.3 released

we’re proud to announce the third bugfix release for the 2.0 series of darktable, 2.0.3!

the github release is here: https://github.com/darktable-org/darktable/releases/tag/release-2.0.3.

as always, please don’t use the autogenerated tarball provided by github, but only our tar.xz. the checksum is:

$ sha256sum darktable-2.0.3.tar.xz
a03e5c1d786799e63c8b4a9f32e9e6f27b3a7d7ab0bbbb7753a516e630490345  darktable-2.0.3.tar.xz
$ sha256sum darktable-2.0.3.dmg
0568d2d2551cfd2b8a55e8ff111857588f9fb986236bc11bff869ecec68ddebd  darktable-2.0.3.dmg

and the changelog as compared to 2.0.2 can be found below.

Bugfixes

  • Actually allow printing with ctrl-p shortcut as advertised in the tooltip
  • Fix scrolling of the histogram to change the exposure
  • Fix the restricted histogram when color picking an area
  • Fix a bug in color reconstruction
  • Fix an OpenCL bug in tonecurve
  • Fix a small memory leak
  • Better error messages in darktable-cli
  • Fix params introspection for unsigned types
  • Only depend on glib 2.32

Base Support

  • Fujifilm X70
  • Olympus PEN-F
  • Panasonic DMC-LX3 (1:1)

White Balance Presets

  • Canon EOS 1200D
  • Canon EOS Kiss X70
  • Canon EOS Rebel T5
  • Canon EOS 5DS
  • Canon EOS 5DS R
  • Canon EOS 750D
  • Canon EOS Kiss X8i
  • Canon EOS Rebel T6i
  • Canon EOS 760D
  • Canon EOS 8000D
  • Canon EOS Rebel T6s
  • Fujifilm X-Pro2
  • Fujifilm X20
  • Fujifilm X70
  • Olympus PEN-F

Noise Profiles

  • Canon EOS 5DS R
  • Fujifilm X20
  • Olympus E-PL6

Translation updates

  • Danish
  • German
  • Swedish

darktable 2.0.2 released

we’re proud to announce the second bugfix release for the 2.0 series of darktable, 2.0.2!

the github release is here: https://github.com/darktable-org/darktable/releases/tag/release-2.0.2.

as always, please don’t use the autogenerated tarball provided by github, but only our tar.xz. the checksum is:

$ sha256sum darktable-2.0.2.tar.xz
75ea6354eb08aab8f25315a2de14c68dc6aad6ee5992061beea624afc7912400 darktable-2.0.2.tar.xz
$ sha256sum darktable-2.0.2.dmg
33789b5a791770f9308cc653aaf50b0e9c054a0fbdd5e4a1d2e48e2bf6553f95  darktable-2.0.2.dmg

and the changelog as compared to 2.0.1 can be found below.

General

  • Require glib of at least version 2.40

New features

  • Add support for DNGs from x3f_extract
  • Support XMP files from Ramperpro timelapse controllers from ElysiaVisuals

Bugfixes

  • Fix some problems with sluggish GUI when Lua is compiled in
  • Some High DPI fixes
  • Small theming fixes
  • Fix some strings being too long in the GUI, especially when using localized versions
  • Fix a potential crash with malformed GPX files
  • Fix wrong zoom level of the map when searching for a location
  • Put XMP metadata into the right Exif fields
  • Fix a crash in masks.
  • Fix a crash in demosaicing
  • Fix Markesteijn demosaicing
  • Fix a crash when moving the mouse while going to darkroom when crop&rotate is active
  • Fix discrepancy between CPU and OpenCL codepath in invert
  • Fix some crashes with certain TIFF files
  • Fix build with GCC6
  • Fix build with osmgpsmap older than 1.1.0
  • Fix compilation when there are spaces in the path names

Camera support

  • Fujifilm X-Pro2

White balance presets

  • Pentax K-S2

Noise profiles

  • Fujifilm X-T10
  • Pentax K-S2

Translations

  • new


darktable 2.0.1 released

we’re proud to announce the first bugfix release for the 2.0 series of darktable, 2.0.1!

the github release is here: https://github.com/darktable-org/darktable/releases/tag/release-2.0.1

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

$ sha256sum darktable-2.0.1.tar.xz
4d0e76eb42b95418ab59c17bff8aac660f5348b082aabfb3113607c67e87830b  darktable-2.0.1.tar.xz
$ sha256sum darktable-2.0.1.dmg
580d1feb356e05d206eb74d7c134f0ffca4202943388147385c5b8466fc1eada  darktable-2.0.1.dmg

and the changelog as compared to 2.0.0 can be found below.

New features:

  • add export variables for Creator, Publisher and Rights from metadata
  • add support for key accels for spot removal iop
  • add some more info to --version
  • add collection sorting by group_id to keep grouped images together
  • add $(IMAGE.BASENAME) to watermark
  • OSX packaging: add darktable-cltest
  • OSX packaging: add darktable-generate-cache

Bugfixes:

  • make sure GTK prefers our CSS over system’s
  • make selected label’s background color visible
  • make ctrl-t completion popup nicer
  • fixed folder list scrolling to the top on select
  • scale waveform histogram to hidpi screens
  • really hide all panels in slideshow
  • add filename to missing white balance message
  • fix wrong tooltip in print scale
  • changing mask no longer invalidates the filmstrip thumb, making it faster
  • fix calculated image count in a collection
  • don’t allow too small sidepanels
  • fixes white balance sliders for some cameras
  • fix some memleaks
  • code hardening in color reconstruction
  • validate noiseprofiles.json on startup
  • no longer lose old export presets
  • fix some crash with wrong history_end
  • don’t load images from cameras with CYGM/RGBE CFA for now
  • some fixes in demosaicing
  • fix red/blue interpolation for XTrans
  • fix profiled denoise on OpenCL
  • use sRGB when output/softproof profile is missing
  • fix loading of .hdr files
  • default to libsecret instead of gnome keyring which is no longer supported
  • fix a bug in mask border self intersections
  • don’t allow empty strings as mask shape names
  • fix a crash in masks
  • fix an OpenCL crash
  • eliminate deprecated OpenCL compiler options
  • update appdata file to version 0.6
  • allow finding Saxon on Fedora 23

Camera support:

  • Fujifilm XQ2 raw support
  • support all Panasonic FZ150 crop modes
  • basic support for Nikon 1 V3
  • add defs for Canon CHDK DNG cameras to make noise profiles work

White balance presets:

  • add Nikon D5500
  • add Nikon 1 V3
  • add missing Nikon D810 presets
  • add Fuji X100T

Basecurves:

  • copy X100S to X100T

Noise profiles:

  • fix typo in D5200 profiles to make them work again
  • add Panasonic FZ1000
  • add Nikon D5500
  • add Ricoh GR
  • add Nikon 1 V3
  • add Canon PowerShot S100
  • copy Fuji X100S to X100T

Translations:

  • add Hungarian
  • update German
  • update Swedish
  • update Slovak
  • update Spanish
  • update Dutch
  • update French

fourth release candidate for darktable 2.0

we’re proud to announce the fourth and hopefully last release candidate in the new feature release of darktable, 2.0~rc4.

the release notes and relevant downloads can be found attached to this git tag: https://github.com/darktable-org/darktable/releases/tag/release-2.0rc4 please only use our provided packages (“darktable-2.0.rc4.*” tar.xz and dmg) not the auto-created tarballs from github (“Source code”, zip and tar.gz). the latter are just git snapshots and will not work! here are the direct links to tar.xz and dmg: https://github.com/darktable-org/darktable/releases/download/release-2.0rc4/darktable-2.0.rc4.tar.xz https://github.com/darktable-org/darktable/releases/download/release-2.0rc4/darktable-2.0.rc4.dmg


third release candidate for darktable 2.0 & string freeze

we’re proud to announce the third release candidate in the new feature release of darktable, 2.0~rc3.

the release notes and relevant downloads can be found attached to this git tag:

https://github.com/darktable-org/darktable/releases/tag/release-2.0rc3

please only use our provided packages (“darktable-2.0.rc3.*” tar.xz and dmg) not the auto-created tarballs from github (“Source code”, zip and tar.gz). the latter are just git snapshots and will not work! here are the direct links to tar.xz and dmg:


first release candidate for darktable 2.0

We’re proud to announce the first release candidate in the new feature release of darktable, 2.0~rc1.

The release notes and relevant downloads can be found attached to this git tag:

https://github.com/darktable-org/darktable/releases/tag/release-2.0rc1

Please only use our provided packages (“darktable-2.0.rc1.*” tar.xz and dmg) not the auto-created tarballs from GitHub (“Source code”, zip and tar.gz). The latter are just git snapshots and will not work! Here are the direct links to tar.xz and dmg:


released darktable 1.6.9

We are happy to announce that darktable 1.6.9 has been released.

The release notes and relevant downloads can be found attached to this git tag: https://github.com/darktable-org/darktable/releases/tag/release-1.6.9 Please only use our provided packages (“darktable-1.6.9.*” tar.xz and dmg) not the auto-created tarballs from github (“Source code”, zip and tar.gz). The latter are just git snapshots and will not work! Here are the direct links to tar.xz and dmg: https://github.com/darktable-org/darktable/releases/download/release-1.6.9/darktable-1.6.9.tar.xz https://github.com/darktable-org/darktable/releases/download/release-1.6.9/darktable-1.6.9.dmg

this will likely be the last maintenance release in our 1.6 major release series


released darktable 1.6.8

We are happy to announce that darktable 1.6.8 has been released.

The release notes and relevant downloads can be found attached to this git tag: https://github.com/darktable-org/darktable/releases/tag/release-1.6.8 Please only use our provided packages (“darktable-1.6.8.*” tar.xz and dmg) not the auto-created tarballs from github (“Source code”, zip and tar.gz). The latter are just git snapshots and will not work! Here are the direct links to tar.xz and dmg: https://github.com/darktable-org/darktable/releases/download/release-1.6.8/darktable-1.6.8.tar.xz https://github.com/darktable-org/darktable/releases/download/release-1.6.8/darktable-1.6.8.dmg

this is a point release in the stable series. the sha256sum is


released darktable 1.6.7

We are happy to announce that darktable 1.6.7 has been released.

The release notes and relevant downloads can be found attached to this git tag: https://github.com/darktable-org/darktable/releases/tag/release-1.6.7 Please only use our provided packages (“darktable-1.6.7.*” tar.xz and dmg) not the auto-created tarballs from github (“Source code”, zip and tar.gz). The latter are just git snapshots and will not work! Here are the direct links to tar.xz and dmg: https://github.com/darktable-org/darktable/releases/download/release-1.6.7/darktable-1.6.7.tar.xz https://github.com/darktable-org/darktable/releases/download/release-1.6.7/darktable-1.6.7.dmg

this is another point release in the stable 1.6.x series.


released darktable 1.6.6

We are happy to announce that darktable 1.6.6 has been released. Please note that the 1.6.5 release was broken so 1.6.6 was directly pushed out. Just pretend 1.6.5 had been skipped.

The release notes and relevant downloads can be found attached to this git tag: https://github.com/darktable-org/darktable/releases/tag/release-1.6.6 Please only use our provided packages (“darktable-1.6.6.*” tar.xz and dmg) not the auto-created tarballs from github (“Source code”, zip and tar.gz). The latter are just git snapshots and will not work! Here are the direct links to tar.xz and dmg: https://github.com/darktable-org/darktable/releases/download/release-1.6.6/darktable-1.6.6.tar.xz https://github.com/darktable-org/darktable/releases/download/release-1.6.6/darktable-1.6.6.dmg


Introducing the darktable app store

Today we are happy to announce a big new feature that we will not only ship with the big 2.0 release later this year but also with our next point release, 1.6.4, which is due in about a week: even more darkroom modules!

One of the big strengths of darktable has always been its varied selection of modules to tweak your image. However, that has also been one of the main points of criticism: too much, too many and too complicated to grasp. To make it easier for the user to deal with the flood of tools darktable has had the “more modules” list since many years. It changed its appearance a few times, we added module categories, allowed to select favorite modules, and all of that has proven to be useful. Thus there have always been people that approached us with great new ideas for new modules, especially since we moved to GitHub a while ago with its powerful Pull Request system, yet we couldn’t accept many of them. Some were not that great codewise, some didn’t really fit our product vision – and then there were some that looked nice and certainly benefited some users, but we felt it wasn’t generic enough to justify polluting our module list even more. Of course this was a bad situation, after all these people invested quite some time into providing us with a new feature that we turned down. No one likes to waste their time.


released darktable 1.6.3

We are happy to announce that darktable 1.6.3 has been released.

The release notes and relevant downloads can be found attached to this git tag:

https://github.com/darktable-org/darktable/releases/tag/release-1.6.3

Please only use our provided packages (“darktable-1.6.3.*” tar.xz and dmg) not the auto-created tarballs from github (“Source code”, zip and tar.gz). The latter are just git snapshots and will not work! Here’s the direct link to tar.xz:

https://github.com/darktable-org/darktable/releases/download/release-1.6.3/darktable-1.6.3.tar.xz

and the DMG:

https://github.com/darktable-org/darktable/releases/download/release-1.6.3/darktable-1.6.3.dmg

this is another point release in the stable 1.6.x series.


released darktable 1.6.2

We are happy to announce that darktable 1.6.2 has been released.

The release notes and relevant downloads can be found attached to this git tag:

https://github.com/darktable-org/darktable/releases/tag/release-1.6.2

Please only use our provided packages (green buttons tar.xz and dmg) not the auto-created tarballs from github (grey buttons, zip and tar.gz). The latter are just git snapshots and will not work! Here’s the direct link to tar.xz:

https://github.com/darktable-org/darktable/releases/download/release-1.6.2/darktable-1.6.2.tar.xz

and the DMG:

https://github.com/darktable-org/darktable/releases/download/release-1.6.2/darktable-1.6.2.dmg

this is a new stable point release, no big new features added.


released darktable 1.6.1

We are happy to announce that darktable 1.6.1 has been released. Due to an oversight on our side we forgot to do this announcement back when the actual release was done, so this is mostly for historical reasons.

The release notes and relevant downloads can be found attached to this git tag: https://github.com/darktable-org/darktable/releases/tag/release-1.6.1 Please only use our provided packages (green buttons tar.xz and dmg) not the auto-created tarballs from github (grey buttons, zip and tar.gz). The latter are just git snapshots and will not work! Here’s the direct link to tar.xz: https://github.com/darktable-org/darktable/releases/download/release-1.6.1/darktable-1.6.1.tar.xz and the DMG: https://github.com/darktable-org/darktable/releases/download/release-1.6.1/darktable-1.6.1.dmg


released darktable 1.4.2

Hello everyone,

we released darktable 1.4.2, a point release which consists mostly of bugfixes and newly added camera support.

You can find the source tarball here:

https://sourceforge.net/projects/darktable/files/darktable/1.4/darktable-1.4.2.tar.xz/download

The PGP signature:

https://sourceforge.net/projects/darktable/files/darktable/1.4/darktable-1.4.2.tar.xz.asc/download

The disk image for Mac users:

https://sourceforge.net/projects/darktable/files/darktable/1.4/darktable-1.4.2.dmg/download

And this one is also signed:

https://sourceforge.net/projects/darktable/files/darktable/1.4/darktable-1.4.2.dmg.asc/download

The key can be obtained from the usual key servers, fingerprint being 4BFF7EAD.

The release notes are as follows:

========================

darktable 1.4.2 Release Notes

  • A lot of cleanup was done to allow larger images to be handled by darktable without crashing as often


Libre Graphics Meeting 2014 in Leipzig, Germany

Yes, it’s this time of the year again. The annual Libre Graphics Meeting is getting closer, and we, that is the whole developer community of your favorite free graphics applications, would like to ask you for your help. Some of you might remember our call for sponsoring from last year. Back then we asked for donations for specific people – a task that didn’t work out that well in the end. So this year we would just like to ask you for a small donation to the general funding campaign instead. This money is only being used to pay the travel expenses of developers and contributors of free graphics projects. Like us. You can see an incomplete list here.


Of Histograms and Waveforms

The gradient test image
Figure 1: the gradient test image – download and play with it in darktable

People using image editors or similar (raster) graphics editors are probably familiar with histograms. You also have them in almost all digital cameras. In darktable you can find it very prominently in the top right corner of darkroom mode, but also as a backdrop of modules like levels, tonecurve and similar.

From a mathematical point of view they are a diagram displaying the amount of pixels in the image that have a specific colour, lightness, value or similar measure. The horizontal axis represents the brightness while the vertical axis corresponds to the amount of pixels that have that brightness.


Call for LGM donations

Hello everyone,

today we have a request to you, the users of darktable.

As you might know there is an annual meeting of developers and users of free and open source graphics applications (like GIMP, Inkscape, blender, scribus, and also darktable), the Libre Graphics Meeting. This year it’s held in Madrid, Spain, and it’s a great opportunity to discuss things with other developers face-to-face. Last year this has brought us native colord support in darktable.


Geotagging in darktable

Geotagging module

For quite some time people have asked us for a way to geotag their images from within darktable. While that is a nifty feature for sure and really helpful when you take pictures outside of a studio we always had to say something along the lines of “sorry, we don’t have that yet”. Some day however Henrik decided to give it a try and started work in his geo branch. Things started to come together nicely and everything looked really promising, but unfortunately he was a little short in free time so the progress stalled and the code started to bitrot. Since it would be a pity to throw away all the great work Henrik did I kind of adopted the branch and set sails to add the missing bits and pieces to make geotagging a new feature of darktable.


Grouping

People following the development of darktable might have heard that we added a grouping feature. Everyone who hasn’t heard of that yet: We added a grouping feature.

Now that everybody knows about it I should try to explain what it actually is and how it works/how to use it. For the technical specification you can have a look at the design specs.

![Grouping turned off](grouping_off.jpg)
Grouping turned off

The first change in the GUI that can be noticed is a little ‘G’ button. Well, first of all we have to notice that there are two kinds of ‘G’ in the GUI: one in the top toolbar, next to the preferences wheel. The other kind is on images frames which are part of a group, next to the yin-yang-edited symbol.


Exporting images on the command line

Recent builds from git will bring you a new executable, “darktable-cli”. With this tool you can export images using the processing power of darktable on the command line.

The simplest way to call the utility is

darktable-cli <input> <output>

This will take the input image, look for the XMP file associated with it, process it at maximal resolution and write the output to output, trying to guess the output format from the output filename. You can also explicitly give a XMP file by running


Live view

screen shot of live view in darktable

For quite some time darktable supports tethering your camera. What was missing all the time was live view. This is about to change though. If you use master (and have a camera supporting it) you can now either use the eye button in the “camera settings” module or hit ‘v’ on your keyboard to start live view from within tethering mode. Since the preview is scaled to fit your screen it might be a good idea to hide some of the side panels. If you are using a Canon EOS (I only tested this with my 40D) you can also use your middle mouse button to zoom into the preview. Another click brings you back to regular live view.


That other OS

The last time I posted to this blog it was my April Fool’s Joke about a file manager (which happened to be just an embedded shell). Since a few people didn’t like that at all I want to assure you that this is no joke at all. However, if you are a Windows user and feel easily offended, then stop reading now.

Still here? Great. I managed to compile darktable for Windows.


File management

Whoever has followed the mailing lists or IRC has seen remarks that darktable lacks a feature complete file manager. Currently we only have a button which lets the user delete files from disk, but there is no way to move them, copy them, rename them, … Every time someone has shown up to suggest something beyond that we made clear that “darktable is not a file manager”. We even have a FAQ entry about that.


“Hello, world!”&nbsp;– yet another new blog?

“Why does darktable need a blog?” you might ask. The answer is quite simple: While we do have a mailing list (actually there are three) which is quite active, most decisions and background informations happen in IRC (#darktable on FreeNode). This is great for fast communications, but it doesn’t allow interested users to follow what we actually (want to) do.

I hope that this blog will be an annotated commit log on the one hand showing the progress we make and a persistent archive of important decisions taken by us on the other hand.


Why GIMP doesn’t play well with darktable

Every now and then the question arises why we don’t have a button in darktable to open the current image in GIMP. Everytime I answer more or less the same.

The arguments of those requesting the button are along the line of “$PROGRAM has it, so it shouldn’t be hard to do” and “I really need to do some small retouching, so it would save me lots of time”.

Well, to understand why we don’t have it I have to stress two features of darktable. First of all, every action is done non-destructive. What that means is that you never edit the actual data in your raw file, but “record” a list of actions (the history in darkroom mode and the XMP files) which shall be executed to get the final image. This list can be changed afterwards without negative side effects since those actions can just be recomputed. The second nice thing in darktable is that we work with high bit depths (32 bit floating point) to get the best possible result.