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+---
+author: Pascal Obry
+date: 2023-12-21 00:10:00+00:00
+layout: post
+title: "darktable 4.6.0 released"
+lede: ladefense.jpg
+lede_author: Pascal Obry
+tags:
+ - announcement
+ - darktable release
+---
+
+We're proud to announce the new feature release of darktable, 4.6.0!
+
+The github release is here: [https://github.com/darktable-org/darktable/releases/tag/release-4.6.0](https://github.com/darktable-org/darktable/releases/tag/release-4.6.0).
+
+As always, please don't use the autogenerated tarball provided by
+github, but only our tar.xz file. The checksums are:
+
+```
+$ sha256sum darktable-4.6.0.tar.xz
+724b27e3204d1822de6dc53ea090a6b1ce55f7c32226d34642689775c68aacc2 darktable-4.6.0.tar.xz
+$ sha256sum darktable-4.6.0-x86_64.dmg
+e4e53cc1ec6a5800029f39728c024882a0357458f5c8d8e0ff16dfe034e701ed darktable-4.6.0-x86_64.dmg
+$ sha256sum darktable-4.6.0-arm64.dmg
+c2649a07410d70f5da57f9c3583f24c6a97adb994924af88f132a2232ddf7ab4 darktable-4.6.0-arm64.dmg
+$ sha256sum darktable-4.6.0-win64.exe
+765fc4d9e67937663253f7cc4d20d4ba829e910ff92626c06dc0846e2ddc77de darktable-4.6.0.exe
+```
+
+When updating from the stable 4.4 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 4.4.
+
+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](https://discuss.pixls.us/t/raw-samples-wanted/5420?u=lebedevri) 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 4.4:
+
+- 1648 commits to darktable+rawspeed
+- 553 pull requests handled
+- 49 issues closed
+
+
+_Please note that the darktable documentation is not currently complete for release 4.6
+and contributions are greatly appreciated. Please see the
+[project documentation](https://github.com/darktable-org/dtdocs#contributing)
+for more information on how to contribute._
+
+## The Big Ones
+
+The following is a summary of the main features added to darktable
+4.6. Please see the user manual for more details of the individual
+changes (where available).
+
+- Editing history is now periodically auto-saved (every 10 seconds)
+ while editing images in the darkroom view. The auto-save interval can
+ be changed (via a preference) or auto-save can be disabled entirely
+ (by setting the interval to 0).
+
+- A new processing module _rgb primaries_ has been added. This module can be used
+ for delicate color corrections as well as creative color grading.
+ It allows the red, green and blue primary colors to be moved around
+ using "hue" and "purity" controls.
+
+ The underlying pixel operation is essentially the same as channel mixing.
+
+- In addition, the _sigmoid_ module now includes a new _primaries_ section,
+ which can be used to gracefully handle difficult lighting situations
+ (e.g. LEDs) and tune the overall look of the image. Modifying these
+ parameters can provide pleasing sunsets, improved skin tones etc.
+ This feature can only be used with sigmoid's per-channel mode and is
+ loosely based on ideas from Troy Sobotka's [AgX](https://github.com/sobotka/AgX-S2O3)
+ and related work in the [Blender community](https://blenderartists.org/t/feedback-development-filmic-baby-step-to-a-v2/1361663).
+ The included "smooth" preset should provide a good starting point
+ for further corrections using this feature.
+
+- When working with the liquify and retouch modules, the full uncropped
+ image is now always shown, with any crop indicated by displaying an overlaid
+ rectangle. This allows for cropped-out parts of the image to be used without
+ having to first disable the crop module and re-enable it when finished.
+
+- When panning or zooming in the darkroom view, a low resolution placeholder
+ used to be shown until the image was fully recalculated for the newly-visible
+ region. Now, if any part of the previous view is still visible, that part will
+ be immediately shown in high quality, with only the remainder of the image
+ being temporarily shown in low quality until the pipe has finished.
+
+ This has been achieved as part of a complete reworking of the darkroom image
+ display, which has also removed some annoying jumps when
+ replacing the low resolution placeholder with recalculated image data,
+ or when switching between full and cropped view
+ (when the crop, retouch or liquify modules are (un)focused).
+
+## Performance Improvements
+
+- OpenCL is now initialized in the background immediately after launching
+ the darktable UI, with progress indicated by a series of toast messages.
+ Previously, this was done before the main UI was launched, which
+ could lead to significant delays (sometimes more than a minute) between
+ the user opening darktable and anything appearing on-screen, making
+ it appear as though darktable had failed to start. Note that processing
+ will be slower (since darktable will only use the CPU) until OpenCL is fully
+ initialized.
+
+- An OpenCL code path has been implemented for lens correction using embedded
+ correction metadata.
+
+- Image display speed in the map view has been increased by 25%.
+
+- Export speed has been improved for JPEG 2000 and B&W TIFF images.
+
+- The chromatic aberrations module is now approximately 10% faster when
+ run on the CPU.
+
+## Other Changes
+
+- The hot pixels module now supports monochrome images.
+
+- The internal compositional guide widget has been removed from the retouch
+ module as it is not required (you can still display the guide globally).
+
+- A long-running import session can now be canceled by clicking on the cross
+ in the progress bar on the bottom left of the screen.
+
+- Auto orientation is now supported when importing AVIF/HEIF images
+ (requires at least libavif 0.9.2 and/or libheif 1.16.0).
+
+- It is now possible to visualize raster masks in the same way as other
+ mask types by clicking the mask visualization icon.
+
+- The dual demosaic mask visualization and performance have been improved.
+
+- It is now possible to manually define additional vignette correction via
+ the lens correction module.
+
+- The linear ProPhoto RGB color space can now be selected in the LUT 3D module.
+
+- The following changes have been made to the OpenCL implementation:
+
+ - Benchmarking code has been removed as it no longer produces valid
+ results on today's computers.
+
+ - The "pinned memory transfer" option has now been removed from the
+ preferences dialog, though it can still be set on a per-device basis.
+
+ - A new option "use all device memory" has been added to the preferences
+ dialog. Select this option to use all GPU memory, with the exception
+ of a 600MB "headroom" which is left free for use by other applications.
+ A similar option was previously available in earlier versions of darktable,
+ however the headroom is now increased to 600MB to account for greater
+ use of GPU acceleration on modern systems.
+
+ - A new set of options have been added to the preferences dialog, to allow
+ selection of desired OpenCL drivers.
+
+- A built-in "Display P3" color profile has been added for use in input,
+ output, display, working and soft-proofing profiles.
+
+- The highlight reconstruction module can now be used for all non-raw files.
+
+- The scroll speed in the filmstrip can now be increased by
+ holding Shift while scrolling (filmstrip will move by half
+ of the visible images at a time). Holding Ctrl while scrolling
+ changes the number of images shown (zooms the filmstrip) and thereby also
+ changes the speed achieved when holding Shift.
+
+- Exported PNG files now embed a CICP (Coding-Independent Code
+ Points) encoded color profile in addition to ICC where possible.
+
+- Exported AVIF files now no longer embed a superfluous ICC profile if the
+ color profile can be encoded as CICP.
+
+- Improved scaling and placement of images in the culling view now make
+ better use of available screen space.
+
+- When hovering over the sample patches in the global color picker module
+ those areas are displayed on the central image and on the histogram (if
+ the corresponding option is selected). It is no longer necessary
+ to have the color-picker activated when doing this. This enhanced behavior
+ is useful, for example, when color grading.
+
+- It is now possible to display a tooltip for a slider or drop-down
+ and a separate tooltip for the button to its right (commonly a
+ color picker button). This was not possible in previous versions
+ of darktable, and was an issue where the button was not directly
+ linked to the slider (for example, a button for mask display).
+
+- Holding the Ctrl key while double clicking a slider or
+ drop-down in a processing module now restores any auto-applied
+ preset.
+
+- Where multiple drawn shapes are grouped (e.g. in a module's mask)
+ the mask manager module now displays a tick mark in front of the
+ active combination mode (in the popup menu) when right-clicking one of
+ the constituent shapes. This is usually much easier to read than the
+ "Venn diagram" icons in the main module UI.
+
+- Mnemonics have been added to dialog boxes and default actions have been
+ assigned, so that pressing Enter will trigger the correct
+ action and close the dialog.
+
+- More OpenEXR 3.2.0 attributes can now be extracted and displayed in
+ the image information module, where present.
+
+- Lens and cameras filters have been added to the collection filters module.
+
+- AVIF exports have been changed so that there is now no conversion to YUV
+ for lossless. The quantizer selection logic has been updated and
+ "lossy" is now the default.
+
+- The content of the main preferences dialog is now (almost) entirely taken
+ from a single definition file (`darktableconfig.xml.in`) making its layout
+ much easier to modify.
+
+- The drop-downs in the preferences dialog now use the same (bauhaus)
+ widgets as the drop-downs in the rest of the application, offering
+ a more consistent behavior.
+
+- The configuration system now has improved number precision.
+
+- The collections module has been reworked for more consistent sorting.
+ All date/time sort orders can now be reversed
+ (placing either the oldest or newest first).
+ The film roll order can also be reversed when ordered by
+ id (which is equivalent to the film roll's first import date).
+ The "sort film rolls by" preference has been renamed from "id"
+ to "import time" to make this clearer.
+
+ The collection filtering based on rating now uses proper text
+ (like "rejected" instead of -1) and the numbers are replaced by stars.
+
+ The collection module now displays color labels in the same order
+ as in the rest of the UI.
+
+- Adding a tag to an image is now considered to be an "edit" and causes
+ XMP sidecars to be created/updated (unless XMP creation is disabled).
+
+- New functionality has been added to automatically generate thumbnails
+ in the background while the user is inactive in the lighttable view.
+ Currently this functionality is only available by running
+ `darktable-generate-cache` from the command-line. The new functionality
+ is controlled via a preference setting that defines which thumbnail
+ sizes to generate in the background (default "never").
+
+- Two new variables have been introduced to allow the camera crop factor
+ ("EXIF.CROP\_FACTOR") and 35mm-equivalent focal length
+ ("EXIF.FOCAL.LENGTH.EQUIV") to be displayed.
+
+- Color harmony guides in the scopes module are now saved and restored
+ for every image. It is therefore no longer necessary to reset the
+ guides when going back to a previous edit. This information is also
+ stored in the XMP file so can be viewed when sharing edits or
+ re-importing a collection.
+
+- It is now possible to control chroma subsampling in JPEG exports.
+
+ This allows the user to reduce the color resolution, often resulting in
+ much smaller files that are virtually indistinguishable
+ from images with more color information.
+
+ On the other hand, certain images will look better when the chroma
+ resolution is maximized. This includes images with small colored details
+ surrounded by a solid background (such as screenshots with colored text).
+
+- The option to ignore JPEG files when importing is now outdated,
+ given that many cameras can also output HEIF images. This option has
+ therefore now been changed to ignore all non-raw files.
+
+- The lens correction module now supports embedded metadata from Olympus
+ .ORF files for correction of distortion and chromatic aberration.
+
+ This correction is equivalent to that applied by the camera body to
+ in-camera JPEGs. For older bodies that do not apply chromatic
+ aberration correction to the JPEGs, the required information is
+ also excluded from the embedded metadata so darktable will be unable
+ to apply corrections.
+
+ Vignetting correction based on embedded metadata is not supported.
+ However, if the camera's "Shading Compensation" option is enabled, the
+ vignetting correction will already have been applied to the data in the raw
+ file.
+
+- The shortcuts system has received several refinements:
+
+ - Deleting or overwriting a default shortcut now moves it to the
+ "disabled defaults" category from where it can restored by
+ pressing Delete. It is no longer necessary to uncheck
+ "load default shortcuts at startup" (in prefs/misc/interface) to
+ keep it disabled.
+
+ - Visual mapping mode now has improved mouse cursors to indicate whether
+ the widget under the cursor can have a shortcut assigned or be added
+ to (or removed from) the quick access panel.
+
+ - The shortcuts tab in the preferences dialog now explains that it may
+ be more convenient to use visual mapping mode.
+
+ - When combining a shortcut with a mouse move (for example
+ b+scroll), separate actions can be triggered by up and
+ down moves. For example, b+scroll-up could cycle
+ through the top panel options and b+scroll-down
+ through the bottom panel combinations.
+
+ - A problem with drop-down and slider popups opened via a shortcut,
+ whereby they would immediately fill with the shortcut key
+ character, was resolved. Those popups are now integrated into the shortcut
+ system, so most non-alphanumeric shortcuts will continue to work. If a
+ dropdown value is changed while the popup is open (for example via
+ an automatic calculation in color calibration, a Lua script or a
+ MIDI shortcut), the popup is correctly updated/repositioned. After
+ a popup is closed it can quickly be reopened to enter another
+ value by pressing Enter (as long as the corresponding
+ widget still has focus).
+
+ - On macOS the system shortcuts e.g. for copy and paste will now work
+ according to the macOS keyboard defaults, meaning using the command
+ key instead of the original Linux style control key.
+
+- The ISO 12464 color assessment mode for the secondary
+ preview window is now activated independently from the main window
+ (and saved between sessions) with a toggle in the
+ right-click popover of the "display second window" button
+ (or using the default alt+b shortcut).
+
+## Bug Fixes
+
+- Fixed issues with the OpenCL platform checks that were causing freezes.
+
+- Fixed the size calculation of resizable widgets based on line size of
+ their contents.
+
+- Fixed a bug in the collection filters module where the conjunction of
+ multiple filters was not handled properly.
+
+- Fixed focus distance detection for Nikon Z mount lens corrections.
+
+- Fixed incorrect cropping of sensor data for sRaw dng files.
+
+- Apply the Lightroom color matrix only when importing a genuine
+ Lightroom XMP sidecar file.
+
+- Fixed a crash when increasing the number of recent collections.
+
+- Fixed a crash when clicking+dragging the feather line on the path
+ mask.
+
+- Fixed a crash when applying the CMYK soft-proof ICC profile.
+
+- The white borders for ISO 12464 color assessment (toggled with
+ Ctrl+b) are now correctly sized and placed at all
+ zoom levels and no longer flash when switching between low and high
+ quality preview, both in the center view and secondary preview
+ window.
+
+- Fixed an issue downloading to Piwigo when the "on conflict" option
+ was set to "don't check".
+
+- Fixed several mouse scroll-wheel issues on macOS when used in
+ combination with the Shift modifier key (color harmonies
+ width, module height, geotagging date/time, ...).
+
+- When loading an XMP sidecar file from disk, resolved an issue where the
+ assigned "duplicate number" was already present in the database. This
+ has been resolved by instead recalculating the "duplicate number" at import
+ time for all duplicates.
+
+- For large collections on the lighttable and when using small
+ thumbnails (more than 15 per line), using the scrollbar or scrolling
+ the mouse to move up/down could be slow. The responsiveness of the
+ lighttable in this scenario has now been drastically improved and is
+ fast and responsive even with ~50k images and 20 thumbnails per line.
+
+- Fixed pixel errors in RAW Chromatic Aberration and LMMSE demosaic
+ resulting in decreased noise.
+
+- Fixed the 'avoid colorshift' mode in the RAW Chromatic Aberrations
+ module.
+
+- Fixed the snapshot module so that snapshots for removed images
+ are no longer accessible – this was previously causing crashes
+ when attempting to display a snapshot of a removed image.
+
+- Fixed a potential crash when using an unsupported ICC profile for
+ soft-proofing.
+
+- Fixed multiple issues when computing borders in the framing module.
+ For a 0% border on the bottom or right-hand side a single pixel
+ border was sometimes shown, depending on the export size/zoom level.
+
+ Note that a 0% border doesn't necessarily mean no border at all
+ if the chosen aspect ratio doesn't correspond to the aspect ratio
+ of the image.
+
+- The internal luminance mask in the tone equalizer has been
+ made more resilient to distortion changes made with modules like lens
+ correction, crop, etc. After activating a crop, the tone equalizer
+ cursor will now show the proper mask luminance values when hovering
+ over the image in the darkroom.
+
+- Fixed calculation of required graphics memory for modules performing
+ blending operations, possibly avoiding crashes related to OpenCL.
+
+- Added the ability to calculate the crop factor for those cameras
+ that do not include this information in their Exif metadata.
+
+- Fixed various bugs related to feathering masks.
+
+- Fixed a DPI scaling issue on macOS causing some GUI elements being
+ rendered too small.
+
+## Lua
+
+### API Version
+
+- API version is now 9.2.0
+
+### Bug Fixes
+
+- Fixed `scripts_installer` to handle user names with spaces on Windows.
+
+### Add action support for Lua
+
+
+### Other Lua changes
+
+- Allow access to image `change_timestamp`.
+
+## Notes
+
+- When exporting to AVIF, EXR, JPEG XL, or XCF, selecting specific
+ metadata (e.g. geo-tag or creator) is not currently possible. For
+ AVIF, EXR, JPEG XL, and XCF formats, darktable will not include any
+ metadata fields unless the user selects all of the checkboxes in the
+ export module's preference options.
+
+- In order to support the correct display of numbers in darktable, the
+ minimum supported Gtk version has had to be increased to
+ 3.24.15. For people who need to build darktable with an older
+ version, this can be achieved by removing line 241 of the
+ `darktable.css` file on your system. See
+ https://github.com/darktable-org/darktable/issues/13166.
+
+- Starting with release 4.4 a new support policy regarding macOS
+ versions has been put in place – darktable releases will now only
+ support those macOS versions that are also supported by Apple.
+ Release 4.6 therefore drops support for macOS versions older than
+ 12.5.
+
+## Changed Dependencies
+
+### Mandatory
+
+- ???
+
+### Optional
+
+- Bump libavif to 0.9.2
+
+## RawSpeed changes
+
+
+## Camera support, compared to 4.4
+
+### Base Support
+
+- Canon EOS Kiss F
+- Canon EOS Kiss X50
+- Canon EOS Kiss X90
+- Canon IXY 220F (dng, chdk)
+- Canon PowerShot SX220 HS (chdk)
+- Fujifilm FinePix SL1000
+- Fujifilm X-S20 (compressed)
+- ImBack ImB35mm (chdk)
+- Leica M10-D (dng)
+- Leica M10-P (dng)
+- Leica M10-R (dng)
+- Leica M11-P (dng)
+- Leica Q2 Monochrom (dng)
+- Leica SL2 (dng)
+- Leica SL2-S (dng)
+- Nikon Coolpix A1000 (12bit-uncompressed)
+- Nikon Z f (14bit-compressed)
+- OM System TG-7
+- Panasonic DC-TZ200D (3:2)
+- Panasonic DC-TZ202D (3:2)
+- Panasonic DC-TZ220 (3:2)
+- Panasonic DC-TZ220D (3:2)
+- Panasonic DC-ZS200D (3:2)
+- Panasonic DC-ZS220 (3:2)
+- Panasonic DC-ZS220D (3:2)
+- Panasonic DMC-G10 (3:2, 16:9, 1:1)
+- Panasonic DMC-GM1S (4:3, 3:2, 16:9, 1:1)
+- Pentax K-3 Mark III Monochrome
+- Pentax KF
+- Samsung EK-GN120
+- Samsung G920F (dng)
+- Samsung G935F (dng)
+- Samsung GX10 (dng)
+- Samsung GX20 (dng)
+- Sigma fp (dng)
+- Sigma fp L (dng)
+- Sigma sd Quattro (dng)
+- Sigma sd Quattro H (dng)
+- Sinar eVolution 75
+- Sony ILCE-6700
+- Sony ILCE-7CM2
+- Sony ILCE-7CR
+- Sony ILME-FX3
+- Sony ZV-E1
+
+### White Balance Presets
+
+- Leica M (Typ 240)
+- Olympus E-P7
+- Olympus TG-6
+- Sony ILCE-7CM2
+
+### Noise Profiles
+
+- Canon IXY 220F
+- Nikon Z f
+- Olympus E-P7
+- Pentax *ist DS
+- Sony ILCE-6700
+
+### Missing Compression Mode Support
+
+- Apple ProRAW DNGs
+- CinemaDNG lossless (Blackmagic, DJI, etc.)
+- Fujifilm lossy RAFs
+- Nikon high efficiency NEFs
+- Samsung Expert RAW DNGs
+- Sony downsized lossless ARWs ("M" for full-frame, "S" for full-frame & APS-C)
+
+### Suspended Support
+
+Support for the following cameras is suspended because no samples
+are available 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
+- Sinar Hy6/ Sinarback eXact
+- ST Micro STV680
+
+## Translations
+
+- Albanian
+- Brazilian Portuguese
+- Chinese (Simplified)
+- Chinese (Traditional)
+- Czech
+- Dutch
+- European Spanish
+- Finnish
+- French
+- German
+- Hungarian
+- Italian
+- Japanese
+- Polish
+- Russian
+- Slovenian
+- Ukrainian
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