This is the first release in the new unstable line. While this release does not have any large changes or new features there will be breaking changes soon :-)
Changes
* #764: Add MediaRSS support (e.g. Youtube feeds) to display
descriptions and thumbnails
(Mikel Olasagasti)
* #773: Add WebKit Inspector menu option to HTML view when
run with --debug-html (by sillyslux)
* #714: Replaces deprecated gtk_menu_popup
(Leiaz)
* #705: New hotkey Ctrl-O to open enclosures
(Leiaz)
* #680: Add xdg-email command to item list popup menu
(poetsmeniet)
* Drop unused glade/google_source.ui
* #699: Refactoring of duplicate check handlingg
(dymoksc)
* #746: Fix accessibility fatals reported by gla11y
(reported by Paul Gevers)
* Fixes #730: "Update all subscriptions at startup" overrides
"Don't update this feed automatically"
(Dymtro Kyrychuk, reported by Paul Wise)
* Fixes #639: Right clicking on article no longer selects it
(Leiaz, reported by Bruce Guenter)
* #737: Update of Italian translation
(madmurphy)
* #745: URL fix for French example feeds
(sblondon)
Download
Grab the tarball on the Github release page https://github.com/lwindolf/liferea/releases/tag/v1.13.0