Brave open sources Cookiecrumbler, an AI-powered tool to automatically detect and block cookie consent banners, currently running on Brave servers, with plans to move it to the browser:
https://betanews.com/2025/04/27/brave-cookiecrumbler-open-source-cookie-notice-blocker/
Kdenlive 25.04 released with AI-powered background removal plugin, OpenTimelineIO import/export, refactored audio thumbnail system, ability to change the duration of multiple adjacent clips in a single action and more:
https://alternativeto.net/news/2025/4/kdenlive-25-04-is-out-with-background-removal-opentimelineio-import-export-and-much-more/
(That background removal tool is actually a pretty good use of AI, and it runs locally, so no need to give Kdenlive Internet access.)
(The ability to change duration of multiple clips at once is also pretty useful, I might attempt to update Kdenlive to get that feature, and hope it doesn't break lol.)
Joplin 3.3 released with various accessibility improvements (keyboard navigation, screen reader support, higher contrast UI elements etc.), option to collapse or expand all notebook hierarchies with a single button, run multiple independent instances for better workspace management on desktop, new search dialog for quick linking of notes, Markdown auto-replacement in Rich Text Editor, improved focus handling in modals on mobile, support for attaching audio recordings to notes and enhanced voice typing on Android, redesigned "New Note" menu:
https://alternativeto.net/news/2025/4/joplin-3-3-brings-rich-text-updates-audio-recording-attachments-ui-improvements-and-more/
AdGuard's CLI adblocker for Linux reached version 1.0, includes app exclusion feature, differential filter updating, interactive setup wizard:
https://betanews.com/2025/04/29/how-to-install-adguard-v1-0-stable-on-linux/
OpenBSD 7.7 released with performance boosts, expanded hardware support, support for Scalable Vector Extension (SVE) and enabling PAC on hardware with the new QARMA3 cipher, improved support for running the system in QEMU, kernel improvements etc.:
https://alternativeto.net/news/2025/4/openbsd-7-7-released-with-performance-boosts-expanded-hardware-support-and-much-more/
(more FOSS news in comment)
כָלב 
yay