Licasa v0.5.0

Preview release: the checked Snap is on Store edge as revision 7. Beta follows qualification.

Licasa 0.5.0 release notes

Licasa 0.5.0 adds a portable AppImage alongside the Ubuntu .deb and Snap. It also makes rapid arrow-key browsing of large mixed photo folders smoother and stops queued browsing steps when the key is released.

Downloads

• Licasa-0.5.0-x86_64.AppImage and install-licasa-appimage.sh: install for your user without FUSE, administrator access, or separate Qt and codecs. The script extracts the package once, adds an application-menu launcher, and registers image types for Open With and default-app selection. The package uses Ubuntu 24.04 as its minimum Linux library baseline.
• licasa_0.5.0-1_amd64.deb: install with sudo apt install ./licasa_0.5.0-1_amd64.deb on Ubuntu 24.04 amd64. APT installs the Qt/QML dependencies.
• Snap Store: the preview is on edge (sudo snap install licasa --edge); after qualification, use sudo snap install licasa --beta. This version needs no experimental Snapd setting. Licasa opens on demand, so the first launch may take longer without a running background process.
• GitHub Snap file: licasa_0.5.0_amd64.snap is available with its SHA-256 checksum for direct installation using sudo snap install --dangerous ./licasa_0.5.0_amd64.snap. Direct installations do not follow Store updates.

Background startup is now optional for all three packages. Turn on Background process in Settings to keep the viewer ready after closing and start it after your next desktop login. The option uses a per-user login entry, requires no administrator password, and can be turned off in the same place. A new installation does not start a background process until you opt in. Warnings and errors are kept in a small, private per-user log for troubleshooting.

The AppImage, installer script, .deb, and .snap each have a SHA-256 checksum file. The release workflow checks a fresh Ubuntu 24.04 build and source tests, clean Ubuntu .deb installation, FUSE-free AppImage installation on Ubuntu and Fedora, image decoding without Qt installed, and Arch X11/Wayland launches. The Arch check also verifies that the packaged libraries resolve there. A native KDE Plasma session still needs hands-on testing before calling it qualified.

Browsing and format changes

• Arrow-key browsing now paints intermediate photos more reliably during fast key repeats and settles on a full-detail image after the key is released.
• HEIF and AVIF format probing uses container signatures more carefully, reducing false matches with other files.

Package SHA-256 checksums

99472ea16668571af7138a8ec60e05f8c3c3f5c2982b3de30e06ea7e37132e6b  licasa_0.5.0-1_amd64.deb
eb67995ed9f429f9a1a34a28ee698fee9162a379baa88636f075000869c88a56  Licasa-0.5.0-x86_64.AppImage
37900dcda3121dac7c2058d02aa1e5b91b5829dbcacea5d0fe759b14dc07e0bf  install-licasa-appimage.sh
fc04904f3290bc286fcc82be4629d85771eebf6d63ce2b45c9f399c782ac4551  licasa_0.5.0_amd64.snap

Source commit: 61ac03135566f4f8f57e75b1126b02471f41921e.

Licasa v0.3.0

Licasa 0.3.0 makes browsing large photos more responsive. This release includes an Ubuntu 24.04 .deb for amd64 and a Snap beta built by Snapcraft's hosted service.

Install the Snap beta

The Snap's per-user background service currently needs Snapd's experimental user-daemons setting:

sudo snap set system experimental.user-daemons=true
sudo snap install licasa --beta

Download the Debian package

Download licasa_0.3.0-1_amd64.deb and licasa_0.3.0-1_amd64.deb.sha256 from this release. The package targets Ubuntu 24.04 on amd64.

Run these commands in the folder containing both files:

sha256sum -c licasa_0.3.0-1_amd64.deb.sha256
sudo apt install ./licasa_0.3.0-1_amd64.deb

Included

• Keep nearby, reduced-size previews in a bounded memory cache for faster keyboard browsing.
• Show a quick preview while a large JPEG, TIFF, or camera RAW image finishes loading.
• Let navigation move on from a large image without waiting for its full-resolution decode.
• Make local development installs restart a running older copy.

Snap Store

Snapcraft hosted build revision 5 (Licasa 0.3.0) was installed, tested, and promoted to beta.

Debian package SHA-256

0246bc4b4603bb62fe93483433ef25e8ec8a2f8c15574c7fa6b66bff22c58acf  licasa_0.3.0-1_amd64.deb

Source commit: 414f5eaa972853a8554d7581d023c7bb29514d85.

Licasa v0.2.6

Licasa 0.2.6 improves editing and image browsing transitions. This release includes an Ubuntu 24.04 .deb for amd64 and a Snap beta built by Snapcraft's hosted service.

Install the Snap beta

The Snap's per-user background service currently needs Snapd's experimental user-daemons setting:

sudo snap set system experimental.user-daemons=true
sudo snap install licasa --beta

Download the Debian package

Download licasa_0.2.6-1_amd64.deb and licasa_0.2.6-1_amd64.deb.sha256 from this release. The package targets Ubuntu 24.04 on amd64.

Run these commands in the folder containing both files:

sha256sum -c licasa_0.2.6-1_amd64.deb.sha256
sudo apt install ./licasa_0.2.6-1_amd64.deb

Included

• Keep the current photo steady while an edited or adjacent image loads, then fade to the ready replacement without stretching the outgoing photo.
• Fit photos beside the editor panel when it opens or changes tools, with smoother panel and image motion.
• Add the installed version and release date to Settings, plus a background-service status indicator in the Snap.
• Improve keyboard focus and original-image comparison in the editor, and make the empty state usable in smaller windows.

Snap Store

Snapcraft hosted build revision 3 (Licasa 0.2.6) was installed, tested, and promoted to beta.

Debian package SHA-256

7f872b0c8781f634ac8001c309fa4423a8899bfd02329ad62ff4573703667f37  licasa_0.2.6-1_amd64.deb

Source commit: cfc82aa16f536bab13bdba54ebe164653c893d6b.

Licasa v0.2.1

Licasa 0.2.1 updates image browsing, keyboard controls, and background mode. This release includes an Ubuntu 24.04 .deb for amd64 and a Snap beta.

Install the Snap beta

The Snap's per-user background service currently needs Snapd's experimental user-daemons setting:

sudo snap set system experimental.user-daemons=true
sudo snap install licasa --beta

Download the Debian package

Download licasa_0.2.1-1_amd64.deb and licasa_0.2.1-1_amd64.deb.sha256 from this release. The package targets Ubuntu 24.04 on amd64.

Run these commands in the folder containing both files:

sha256sum -c licasa_0.2.1-1_amd64.deb.sha256
sudo apt install ./licasa_0.2.1-1_amd64.deb

Included

• Browse adjacent images in fullscreen view and use keyboard shortcuts for viewing, editing, menus, and notification history.
• Start the background process at login on native installs or through the Snap's per-user service.
• Clear failed or cancelled image previews from the pending decode registry and improve image-opening feedback.
• Build the Snap from source with Snapcraft's hosted build service, then test its Store revision before beta promotion and GitHub .deb publication.

Snap Store

Snapcraft hosted build revision 2 (Licasa 0.2.1) was installed, tested, and promoted to beta.

Debian package SHA-256

9200a3fda9ea50271fff57f30662e6fede08febd36dea761f62408bfda0b1ba1  licasa_0.2.1-1_amd64.deb

Source commit: 905e91d283f8d0374eb9e3ac2d8ec6a8f41abec5.

Licasa v0.1.1

Licasa 0.1.1 adds a Snap beta release and an updated Ubuntu 24.04 .deb package for amd64.

Install the Snap beta

sudo snap install licasa --beta

Download the Debian package

Download both licasa_0.1.1-1_amd64.deb and licasa_0.1.1-1_amd64.deb.sha256 from this release. The package targets Ubuntu 24.04 on amd64.

Run these commands in the folder containing both downloaded files:

sha256sum -c licasa_0.1.1-1_amd64.deb.sha256
sudo apt install ./licasa_0.1.1-1_amd64.deb

Included

• A strictly confined Snap with image viewing, editing, and the packaged image codecs.
• Smoother zooming in floating mode.

Snap Store

Licasa 0.1.1 is released to beta.

Debian package SHA-256

9909f6b4d40991d1e88f95702db29e2e18a45584c1ea2a51649029fb6e051f4f  licasa_0.1.1-1_amd64.deb

Source commit: f42d0a6d1f4bb6f6ed1eaf55c16ad91118f692e9.

Licasa v0.1.0

Licasa 0.1.0 is the first Ubuntu package of the desktop image viewer and editor.

Download

Download both licasa_0.1.0-1_amd64.deb and licasa_0.1.0-1_amd64.deb.sha256 from this release. The package targets Ubuntu 24.04 on amd64.

Included

• Fullscreen and floating image viewing, with editing tools.
• JPEG, PNG, TIFF, WebP, HEIC/HEIF, JPEG XL, AVIF, JPEG 2000, RAW preview, and animated APNG readers.
• Motion Photo playback and the private codec libraries needed by the package.

Verify and install

Run these commands in the folder containing both downloaded files:

sha256sum -c licasa_0.1.0-1_amd64.deb.sha256
sudo apt install ./licasa_0.1.0-1_amd64.deb

The release workflow builds the attached package from the v0.1.0 tag, checks its SHA-256, and tests installation and image decoding in a clean Ubuntu 24.04 environment before publication.

Package SHA-256

04a8b4e342b86c9fcff221064be3b162ec25b22ea6581495e6a6d37d8078682b  licasa_0.1.0-1_amd64.deb

Source commit: 6e1f67fc2b1b3f6cea33ff90f2ac10e55a2faec6.