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:

    Well over 2k commits since 2.0.0

The Big Ones:

    Add new automatic perspective correction module (https://
www.darktable.org/2016/03/a-new-module-for-automatic-perspective-correction/)
    Liquify tool for all your fancy pixel moving (https://www.darktable.org/
2016/04/liquify-liquify/)
    A new image module to use a Color Look Up Table (CLUT) to change colors in 
the image 
(https://www.darktable.org/2016/05/colour-manipulation-with-the-colour-checker-lut-module/)
    In Highlight reconstruction module, the mode LCh reconstruction was 
completely rewritten, and is no longer useless!
    A new tool, darktable-chart, that goes along with the CLUT module, to 
create styles for the latter
    Exposure fusion in the basecurve module to lower the dynamic range of 
images 
(https://www.darktable.org/2016/08/compressing-dynamic-range-with-exposure-fusion/)
    Add new raw overexposure indication (https://www.darktable.org/2016/10/
raw-overexposed/)
    Darkroom: the preview (in top-left corner) is now no longer pre-demosaiced 
(but just downscaled without demosaicing it at the same time), thus the 
preview, color picker, histogram show the proper results, especially when 
there is highlight clipping.

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) 
(https://www.darktable.org/2016/04/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

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
    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

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).
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)
    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.
If anyone reading this owns such a camera, please do consider providing 
samples.

    Nikon E8400
    Nikon E8800
    Nikon D3X (12-bit)

White Balance Presets

    Canon EOS 1200D
    Canon EOS Kiss X70
    Canon EOS Rebel T5
    Canon EOS 1300D
    Canon EOS Kiss X80
    Canon EOS Rebel T6
    Canon EOS 5D Mark IV
    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
    Canon EOS 80D
    Canon EOS M10
    Canon EOS-1D X Mark II
    Canon PowerShot G7 X Mark II
    Fujifilm X-Pro2
    Fujifilm X-T2
    Fujifilm X-T10
    Fujifilm X100T
    Fujifilm X20
    Fujifilm X70
    Nikon 1 V3
    Nikon D5500
    Olympus PEN-F
    Pentax K-1
    Pentax K-70
    Pentax K-S1
    Pentax K-S2
    Sony ILCA-68
    Sony ILCE-6300

Noise Profiles

    Canon EOS 5DS R
    Canon EOS 80D
    Canon PowerShot G15
    Canon PowerShot S100
    Canon PowerShot SX50 HS
    Fujifilm X-T10
    Fujifilm X-T2
    Fujifilm X100T
    Fujifilm X20
    Fujifilm X70
    Nikon 1 V3
    Nikon D5500
    Olympus E-PL6
    Olympus PEN-F
    Panasonic DMC-FZ1000
    Panasonic DMC-GF7
    Pentax K-S2
    Ricoh GR
    Sony DSLR-A900
    Sony DSC-RX10
    Sony SLT-A37

New Translations

    Hebrew
    Slovenian

Updated Translations

    Catalan
    Czech
    Danish
    Dutch
    French
    German
    Hungarian
    Russian
    Slovak
    Spanish
    Swedish

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