* tony Hamilton <shaky.st...@ntlworld.com> [02-25-23 10:03]:
> Forgive my impatient and selfish perspective, but for those of us blessed
> with the inability to compile anything in Linux, even after 15  years of
> trying, where can we look for an Ubuntu binary for dt version 4.2.1? The OBS
> is still showing 4.2.0.
> 
> On 22/02/2023 18:45, Pascal Obry wrote:
> > We're proud to announce the new bug fix release of darktable, 4.2.1!
> > 
> > The github release is here: 
> > [https://github.com/darktable-org/darktable/releases/tag/release-4.2.1](https://github.com/darktable-org/darktable/releases/tag/release-4.2.1).
> > 
> > As always, please don't use the autogenerated tarball provided by
> > github, but only our tar.xz file. The checksums are:
> > 
> > ```
> > $ sha256sum darktable-4.2.1.tar.xz
> > 603a39c6074291a601f7feb16ebb453fd0c5b02a6f5d3c7ab6db612eadc97bac  
> > darktable-4.2.1.tar.xz
> > $ sha256sum darktable-4.2.1_arm64.dmg
> > d037a23e8b37f6971a1f2b7c4cf3e03647b168ad2fb43080761d7a307b43048d  
> > darktable-4.2.1_arm64.dmg
> > $ sha256sum darktable-4.2.1_x86_64.dmg
> > 993a29685397c6e1a429d84be578da9271eefc06d2c75c10818ffc00b7d04a00  
> > darktable-4.2.1_x86_64.dmg
> > $ sha256sum darktable-4.2.1-win64.exe
> > 31c4d6c522818eda87e48df44f267afd531339ef9d374fa02d44891e3755f7b5  
> > darktable-4.2.1-win64.exe
> > ```
> > 
> > When updating from the stable 4.0.x series, please bear in
> > mind that your edits will be preserved during this process, but the new
> > library and configuration will no longer be usable with 4.0.x.
> > 
> > You are strongly advised to take a backup first.
> > 
> > #### Important note: to make sure that darktable can keep on supporting the 
> > raw file format for your camera, *please* read [this 
> > post](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 4.2.0:
> > 
> > - Almost 300 commits to darktable+rawspeed
> > - 89 pull requests handled
> > - 18 issues closed
> > 
> > ## The Big Ones
> > 
> > - N/A
> > 
> > ## Other Changes
> > 
> > - JPEG files are identified using magic bytes instead of file
> >    extension. This helps in cases where JPEG images end up in
> >    files with unexpected extensions.
> > 
> > - Allow shortcuts to be assigned to the "quick access" style and preset
> >    menus at the bottom of the darkroom view
> > 
> > - Add a collapsible section to the sigmoid module so that
> >    controls not used in standard processing scenarios are hidden
> >    by default.
> > 
> > - Some minor modifications to image overlays in culling view to make
> >    them less intrusive.
> > 
> > ## Bug Fixes
> > 
> > - Fix possible bad pinned memory transfer on OpenCL.
> > 
> > - Fix bug in date/time sanitization function that caused image capture
> >    timestamps to be corrupted when they contained a time zone with a
> >    negative offset.
> > 
> > - Fix toast messages containing "%".
> > 
> > - Fix collections module using exclude rules when the first filter is empty.
> > 
> > - Fix RGB curve histogram display when "compensate middle gray" is set.
> > 
> > - Fix possible infinite loop when a module fails to load.
> > 
> > - Properly honor "hide histogram" setting when restarting.
> > 
> > - Fix darktable-chart crash.
> > 
> > - Fix Y0 mask calculations in the demosaic module.
> > 
> > - Avoid using fscanf() for loading configuration to avoid broken Windows
> >    implementation.
> > 
> > - Add RYB vectorscope option to the darktable configuration file to
> >    ensure proper histogram view settings on startup.
> > 
> > - Ensure that wide popups are properly shown on the same display as
> >    the associated widget.
> > 
> > - Fix possible crash in camera tethering.
> > 
> > - Make yes/no buttons in dialog boxes respond to standard shortcuts 
> > <kbd>alt+y</kbd>
> >    and <kbd>alt+n</kbd>.
> > 
> > - Fix preferences sanitization, which was completely ineffective due to
> >    incorrect loading order.
> > 
> > - Add a link to the sigmoid module's online documentation.
> > 
> > - Fix tooltip on color calibration expander.
> > 
> > - Fix incorrect reporting of HEIF image bit depth, which resulted in
> >    incorrect color profile selection for images without embedded color
> >    profile data.
> > 
> > - Fix snapshot invalidation, which was too pessimistic and made
> >    switching snapshots slow.
> > 
> > - Fix some messages in LUT module.
> > 
> > ## Lua
> > 
> > - N/A
> > 
> > ## Notes
> > 
> > - N/A
> > 
> > ## Changed Dependencies
> > 
> > - Update bundled LibRaw version to 0.21.1.
> > 
> >    For systems providing LibRaw 0.21.1 or newer, it is now possible to
> >    disable building the bundled copy by defining
> >    -DDONT\_USE\_INTERNAL\_LIBRAW=ON
> > 
> > ### Mandatory
> > 
> > - Bump minimum required CMake version from 3.10 to 3.18.
> > 
> > ### Optional
> > 
> > - Bump libheif minimum required version from 1.9.0 to 1.13.0.
> > 
> > - Relax libavif minimum required version from 0.9.1 back to 0.8.2.
> > 
> > ## RawSpeed changes
> > 
> > - Massive Fuji decompressor refactoring, up to -25% less wall time
> > - Fuji GFX100(S): fix 16-bit sensor black/white levels
> > - Fix decoding of compressed Fuji raws with large filesize
> > 
> > ## Camera support, compared to 4.2.0
> > 
> > ### Base Support
> > 
> > - Canon EOS Kiss X10
> > - Canon EOS Kiss X10i
> > - Leica M9 (dng)
> > - Nikon Z 30 (12bit-compressed, 14bit-compressed)
> > - OM System OM-1
> > - OM System OM-5
> > - Panasonic DC-G95D (4:3)
> > - Panasonic DC-G99D (4:3)
> > - Ricoh GR IIIx (dng)
> > 
> > ### Missing Compression Mode Support
> > 
> > - Fujifilm "non-lossless"/lossy
> > - Nikon high efficiency
> > - Sony lossless
> > 
> > ### White Balance Presets
> > 
> > - Nikon Z 9
> > 
> > ### Noise Profiles
> > 
> > - Fujifilm GFX100S
> > - Fujifilm X-H2
> > - Fujifilm X-H2S
> > - OM System OM-1
> > - Sony ILCE-7SM3
> > - Canon EOS 250D / Kiss X10 / Rebel SL3 / 200D Mark II
> > - Canon EOS R7
> > 
> > ### Suspended Support
> > 
> > No samples on raw.pixls.us
> > 
> > - Creo/Leaf Aptus 22(LF3779)/Hasselblad H1
> > - Fujifilm FinePix S9600fd
> > - Fujifilm IS-1
> > - GoPro FUSION
> > - Kodak EasyShare Z980
> > - Leaf Aptus-II 5(LI300059)/Mamiya 645 AFD
> > - Leaf Credo 60
> > - Leaf Credo 80
> > - Minolta DiMAGE 5
> > - Olympus SP320
> > - Panasonic DMC-FX150
> > - Pentax Q10
> > - Phase One IQ250
> > - Samsung GX10
> > - Samsung GX20
> > - Samsung EK-GN120
> > - Samsung SM-G920F
> > - Samsung SM-G935F
> > - Sinar Hy6/ Sinarback eXact
> > - ST Micro STV680
> > 
> > ## Translations
> > 
> > - German
> > - European Spanish
> > - Finnish
> > - French
> > - Hungarian
> > - Italian
> > - Japanese
> > - Dutch
> > - Polish
> > - Brazilian Portuguese
> > - Russian
> > - Slovenian
> > - Albanian
> > - Turkish (New)
> > - Ukrainian
> > - Chinese - Taiwan
> > 
> > 
> 

you need to ask the Ubuntu packagers to prepare that package for you

or use google
or run a flatpack or AppImage

really building is simple and instructions are provided on github.

-- 
(paka)Patrick Shanahan       Plainfield, Indiana, USA          @ptilopteri
http://en.opensuse.org    openSUSE Community Member    facebook/ptilopteri
Photos: http://wahoo.no-ip.org/piwigo                   paka @ IRCnet oftc
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