GIMP 2.99.8 Released with .jxl File Support, How to Install in Ubuntu

Last updated: October 21, 2021 — Leave a comment

GIMP image editor released new development version 2.99.8 for the next 3.0 series with some great new features.

GIMP 2.99.8 introduced multiple layers support for its Clone, Heal and Perspective Clone tools. There are as well 2 new modes in particular:

When sourcing from multiple selected drawables then cloning into a single drawable, the pixel source is the composited render of source layers.
When cloning while multiple drawables are selected, each drawable clones from itself to itself, i.e. every drawable is both its source and target.

The release added support for loading and exporting JPEG-XL (.jxl) files via the libjxl library. And it supports larger-than-4GiB PSD files and loading up to 99 channels, as well as PSB files with width and height up to 300,000 pixels.

Thanks to Windows Ink support, GIMP now has more more graphics tablets or touch input devices support. Other changes in GIMP 2.99.8 include:

  • Selection cue fixed on Wayland and macOS
  • Clicking anywhere on the toolbox or on Wilber’s drop area now returns the focus to the canvas
  • Dropped the thumbnail icon feature.
  • Memory leak fixes and plug-in improvements.

How to Install GIMP 2.99.8 in Ubuntu Linux:

GIMP rolls out new nightly build of the flatpak package for Linux. After installing flatpak daemon, run the command below will install GIMP nightly build:

flatpak install --user

For GIMP 2.99.8 Beta as Flatpak, see this how to install guide.

There are also third-party Ubuntu PPA for those don’t like flatpak. Though it’s not updated at the moment, check HERE.


I'm a freelance blogger who started using Ubuntu in 2007 and wishes to share my experiences and some useful tips with Ubuntu beginners and lovers. Please comment to let me know if the tutorial is outdated! And, notify me if you find any typo/grammar/language mistakes. English is not my native language. Contact me via [email protected] Buy me a coffee:

No Comments

Be the first to start the conversation.

Leave a Reply

Text formatting is available via select HTML.

<a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <s> <strike> <strong>