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[Gimp-developer] ANNOUNCE: GIMP 2.99.6 released

Hello everyone!

We have not been very good with announcing releases on the mailing list
lately, so let's fix this! In particular, we have never announced here any
of the development releases of the 2.99 series (the unstable versions meant
to become GIMP 3 later on) even though this is actually the third one!

* GIMP 2.99.2 (2020-11-06):
https://www.gimp.org/news/2020/11/06/gimp-2-99-2-released/
* GIMP 2.99.4 (2020-12-25):
https://www.gimp.org/news/2020/12/25/gimp-2-99-4-released/
* GIMP 2.99.6 (today):
https://www.gimp.org/news/2021/05/08/gimp-2-99-6-released/

Note about the release dates: some people may have noticed that versions
are tagged earlier in the git repository, because we now wait for at least
the Windows installer or macOS DMG before announcing a new version, and for
mirrors to sync up. In GIMP 2.99.6 case, we are even 11 days late, but such
is life! It is nicer not to announce something most people cannot test.
Though our flatpak (Linux) package is always timely distributed a few hours
after version tagging.

For a list of the changes, with nice text and screenshots, please refer to
the relevant news link above, on our website. For a more complete list of
changes since GIMP 2.99.6, please see the "Changes" section below.

Happy GIMPing,

Jehan and the GIMP team!

Download
========

  GIMP 2.99.6 is available from:

  https://download.gimp.org/mirror/pub/gimp/v2.99/

  and from the mirrors listed at:

  https://www.gimp.org/downloads/devel/#mirrors

  The sha256 and sha512 checksums of the tarball are:

8d264b28445a3df2b940f30ee0b89b469255e975e8563b889fd57fb2f58f66a0
 gimp-2.99.6.tar.bz2

51ada696693ac51624ba222d1fff54d39bdc72a06de54f7c244b89740b77f7205aab44f1cec90785ca4196cab32f817e7390b4287a30f5024606163f24222961
 gimp-2.99.6.tar.bz2

Overview of Changes from GIMP 2.99.4 to GIMP 2.99.6
===================================================

Core:

  - Various fixes for Wayland support.
  - Canvas Size dialog now displays a template selector to simply
    resize the canvas to a known template. When the image's and
    template's pixel density don't match, a choice will be proposed to
    set the image's PPI to the template's one or to scale the template's
    pixel size with the image's pixel density.
  - Off-canvas guides are now allowed. Guides are not deleted anymore
    when dropped off-canvas, but when dropped off-viewport.
  - Pinch gesture is now possible on canvas for zooming in/out (works on
    Wayland, not on X11; untested yet on *BSD, macOS, Windows and
    others).
  - GimpAction core class now stores a reason for explaining being
    disabled. This can be used later for giving better hints on why some
    effects or plug-ins are not usable in some situations. We already
    had this feature, but by tweaking the action's tooltip, which
    prevented this to have proper styling on GUIs and disrupted action
    search (as the reason text was searched, hence may return actions it
    should not).
  - Copy|Cut-Paste could already operate on multiple layers, by merging
    the result into a single layer. It will still do this when a
    selection exists, yet will paste layers as-is otherwise. This makes
    an alternative way to move layers, which is sometimes easier than
    drag'n dropping (especially between separate images).

Tools:

  - Paint Select tool got various improvements:
    * apply a threshold on the image mask before triggering the
      automatic expansion to simplify mask handling in the gegl
      paint-select operation.
    * enable viewport-based local selection.
  - GEGL Operation tool is now moved into Filters > Generic menu because
    it behaves more like a generic filter conceptually. As other
    filters, the GEGL Operation action is now only active when there are
    opened images.

API:

  - The generate "Metadata" frame layout in a GimpSaveProcedureDialog
    has been improved to always show the same number of columns to avoid
    ugly layout with options on 3 columns, then 2 columns on the next
    line (for instance).
  - The "Reset" button in GimpProcedureDialog shows a down arrow to show
    this is actually a button menu.
  - "Save|Load Defaults" in GimpProcedureDialog are renamed as "Save
    Settings" and "Load Saved Settings". The term "defaults" was not
    very clear and could be confused with "factory defaults". Moreover
    tooltips were added and the "Load Defaults" button is now only
    sensitive if "Save Defaults" buttion has been hit at least once.
  - Annotations improved.
  - Drop g_object_notify() in favor of g_object_notify_by_pspec() in
    various implementations to avoid a slight performance hit because of
    a global lock.
  - New function gimp_parasite_get_data() replacing gimp_parasite_data()
    and gimp_parasite_data_size() in a GObject Introspection friendly
    way.
  - gimp_procedure_dialog_new() now allows a NULL title if a menu label
    was set on the GimpProcedure with gimp_procedure_set_menu_label().
  - gimp_progress_update() improved: do not update more than 20 times
    per second and do not warn on stderr when too many progression steps
    are outputted. Indeed we should not place the burden of deciding
    whether there are too much or not enough progression updates on
    plug-in developers. On the opposite, they should be encouraged to
    update the progression as often as possible while libgimp will
    handle the decision on whether it actually ignores the progression
    step or not. This makes easier plug-in development and good
    progression feedback of long process.
  - GimpInt16Array was removed: it was used neither by GIMP core nor any
    core plug-ins. If third-party plug-ins really need this type, they
    may easily reintroduce it through GimpUint8Array (array of bytes) or
    GimpInt32Array (using only a subrange).
  - New function gimp_image_take_selected_layers() similar to
    gimp_image_set_selected_layers() except that it takes a GList
    (instead of a C array) and it takes ownership of the list pointer.
  - New functions: gimp_procedure_set_sensitivity_mask() and
    gimp_procedure_get_sensitivity_mask() for plug-ins to advertize when
    a procedure should be sensitive (in particular relatively to
    multi-drawable selection).
  - GimpImageProcedure's run() functions now have an array of drawables
    as argument (instead of a single drawable), to be consistent with
    multi-drawable selection ability.
  - New gimp_plug_in_error_quark() as a generic GQuark/GError domain for
    plug-ins.
  - Several functions were renamed to be consistent with our naming
    scheme:
    * s/gimp_parasite_name/gimp_parasite_get_name/
    * s/gimp_parasite_flags/gimp_parasite_get_flags/
    * s/gimp_image_base_type/gimp_image_get_base_type/
    * s/gimp_image_width/gimp_image_get_width/
    * s/gimp_image_height/gimp_image_get_height/
    * s/gimp_drawable_bpp/gimp_drawable_get_bpp/
    * s/gimp_drawable_width/gimp_drawable_get_width/
    * s/gimp_drawable_height/gimp_drawable_get_height/
    * s/gimp_drawable_offsets/gimp_drawable_get_offsets/
  - gimp_parasite_data() and gimp_parasite_data_size() are replaced by
    gimp_parasite_get_data() which is introspection friendly.
  - libgimpconfig: GimpParasite can now be serialized. This is useful
    when using a GimpParasite procedure argument, whose random contents
    (possibly binary) can be stored across sessions.
  - Move public classes to G_DECLARE_DERIVABLE_TYPE and
    G_DECLARE_FINAL_TYPE in order not to expose useless variables to
    plug-in developers.
  - New function gimp_procedure_dialog_set_sensitive() sets
    GimpProcedureDialog's widget sensitive value or binding.
  - PDB procedure 'plug-in-autocrop-layer' multi-layer aware.
  - GimpProcedureDialog now handles GimpRGB arguments.

Plug-ins:

  - We dropped the dialog for the Freedesktop portal implementation of
    the screenshot plug-in. Basically the Freedesktop portal provides
    its own GUI with most options, so also showing ours is redundant.
    Just directly call the portal and wait for the image in return.
  - Color profile and comment is saved on each layer of a TIFF file to
    prevent any ambiguity as TIFF allows its layers to have different
    profiles.
  - On PNG import, create an ICC profile out of the gAMA and/or cHRM
    chunks, if any of them are present, if no color profile is set and
    if the sRGB chunk is not present. This happens for RGB images as
    well as grayscale images (creating respectively a RGB or grayscale
    color profile).
  - Improve PNG export in no-profile case with gAMA and cHRM chunks
    (additionally to the sRGB chunk) according to PNG spec
    recommendations. Moreover the "gamma" option has now been removed
    because we just have proper core support of this metadata through
    ICC profile creation now, which is just more powerful.
  - "gamma" option for PNG export was removed (from GUI and
    file-png-load PDB API) because it is now redundant as we have proper
    support for this metadata.
  - Various fixes and improvements to OpenRaster image support.
  - PDF export now has progression.
  - PSD import/export got multi-layer selection support.
  - Qbist:
    * make the applied pattern a bit more prominent by adding a
      label about the center pattern of the 9x9 grid (which is the
      selected one meant to be applied).
    * last used values now stored with the new API, hence surviving
      across sessions.
  - benchmark-foreground-extract.py moved to gimp-data-extras.
  - Various plug-ins now work with multiple selected drawables when
    relevant.

Devel docs:

  - Python 3 and Javascript API documentation are now generated inside
    the build directory devel-docs/g-ir-docs/html/ (not installed right
    now) if you configure the build with option --enable-g-ir-doc
    (alternative for the meson build: -Dg-ir-doc=true but the docs ends
    up incomplete so autotools build is advised, cf. #6362).

Translations:

  - New Hebrew translation for the installer.

-- 
ZeMarmot open animation film
http://film.zemarmot.net
Liberapay: https://liberapay.com/ZeMarmot/
Patreon: https://patreon.com/zemarmot
Tipeee: https://www.tipeee.com/zemarmot
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