Core changes

• cookies
  • Allow --cookies-from-browser for Safari on iOS (#14950) by pha1n0q
  • Support Firefox cookies database v17 (#15010) by Grub4K
• sponsorblock: Add hook category (#14845) by seproDev
• update: Fix PyInstaller onedir variant detection (#14800) by bashonly

Extractor changes

• 1tv: live: Add extractor (#14299) by swayll
• ardaudiothek: Add extractors (#14309) by evilpie, marieell
• bunnycdn
  • Fix extractor (#14954) by seproDev
  • Support player subdomain URLs (#14979) by einstein95
• discoverynetworksde: Fix extraction (#14818) by dirkf, w4grfw (With fixes in f3c255b by bashonly)
• floatplane: Fix extractor (#14984) by i3p9
• googledrive
  • Fix subtitles extraction (#14809) by seproDev
  • Rework extractor (#14746) by seproDev
• kika: Do not extract non-existent subtitles (#14813) by InvalidUsernameException
• mux: Add extractor (#14914) by PierceLBrooks, seproDev
• nascarclassics: Add extractor (#14866) by JrM2628
• nbc: Detect and discard DRM formats (#14844) by bashonly
• ntv.ru: Rework extractor (#14934) by anlar, seproDev (With fixes in a86eeaa by seproDev)
• play.tv: Update extractor for new domain (#14905) by thomasmllt
• tubetugraz: Support alternate URL format (#14718) by krystophny
• twitch
  • Fix playlist extraction (#15008) by bashonly, ctengel
  • stream: Fix extractor (#14988) by seproDev
  • vod: Fix extractor (#14999) by Zer0spectrum
• urplay: Fix extractor (#14785) by seproDev
• web.archive: youtube: Fix extractor (#14753) by seproDev
• xhamster: Fix extractor (#14948) by CaramelConnoisseur, dhwz
• youtube
  • Add tv_downgraded client (#14887) by seproDev (With fixes in fa35eb2)
  • Fix web_embedded client extraction (#14843) by bashonly, seproDev
  • Fix auto-generated metadata extraction (#13896) by TheQWERTYCodr
  • Fix original language detection (#14919) by bashonly
  • Implement external n/sig solver (#14157) by bashonly, coletdjnz, Grub4K, seproDev (With fixes in 4b4223b, ee98be4, c0c9f30, cacd163, 8636a9b)
  • Support collaborators (#14677) by seproDev
  • tab: Fix duration extraction for feeds (#14668) by WeidiDeng

Downloader changes

• ffmpeg
  • Apply ffmpeg_args for each format (#14886) by bashonly
  • Limit read rate for DASH livestreams (#14918) by bashonly

Networking changes

• Ensure underlying file object is closed when fully read (#14935) by coletdjnz

Misc. changes

• Fix zsh path argument completion (#14953) by matyb08
• build: Bump musllinux Python version to 3.14 (#14623) by bashonly
• cleanup
  • Miscellaneous
    • c63b4e2 by bashonly, matyb08, seproDev
    • 335653b by bashonly, seproDev
• devscripts: Improve install_deps script (#14766) by bashonly
• test: Skip flaky tests if source unchanged (#14970) by bashonly, Grub4K