Version 2026.10.0 - GTK 4.24.1

Changes

• Switch CI to Python 3.15 @danyeaw (#1867)
• Update PyGObject, expat, pycairo, and other dependencies @danyeaw (#1865)
• GStreamer 1.28.8 @danyeaw (#1868)
• GTK 4.24.1 and other dependency updates @danyeaw (#1860)
• Add mpg123 and enable the mpg123 plugin in gst-plugins-good @JumpLink (#1849)
• Update OpenSSL to version 3.6.5 @kathoum (#1852)
• Fix validation error code for tests and drop Python 3.10 support @danyeaw (#1853)
• Weekly dependency update including GStreamer 1.28.7 and expat 2.8.4 @danyeaw (#1842)
• Update Pango and libadwaita @danyeaw (#1839)
• Update libffi to version 3.8.0 @danyeaw (#1840)
• Update HarfBuzz, fontconfig, and gdk-pixbuf @danyeaw (#1826)
• Update pycairo, Go, libpsl, gst-plugin-gtk4, and GStreamer @danyeaw (#1838)
• Update expat to 2.8.3 @danyeaw (#1837)
• openssl: Specify that the version must be FIPS validated @AlessandroBono (#1834)
• Update OpenSSL to 3.6.3, Downgrade FIPS version to 3.1.2 @fabiosky (#1833)
• Enchant 2.8.19 upstream @deepend-tildeclub (#1821)
• fix building librsvg @zhw2101024 (#1803)

Thanks again to @AlessandroBono, @danyeaw, @deepend-tildeclub, @fabiosky, @JumpLink, @kathoum, @zhw2101024, and Dario Marino Saccavino! 🎉