diff --git a/CONTRIBUTORS b/CONTRIBUTORS
index d0f475d1c1..9064ebd7f8 100644
--- a/CONTRIBUTORS
+++ b/CONTRIBUTORS
@@ -808,3 +808,6 @@ Randalix
 runarmod
 gitchasing
 zakaryan2004
+cdce8p
+nicolaasjan
+willsmillie
diff --git a/Changelog.md b/Changelog.md
index 120516ab2a..ed61c3bc3c 100644
--- a/Changelog.md
+++ b/Changelog.md
@@ -4,6 +4,63 @@
 # To create a release, dispatch the https://github.com/yt-dlp/yt-dlp/actions/workflows/release.yml workflow on master
 -->
 
+### 2025.09.23
+
+#### Important changes
+- **Several options have been deprecated**
+In order to simplify the codebase and reduce maintenance burden, various options have been deprecated. Please remove them from your commands/configurations. [Read more](https://github.com/yt-dlp/yt-dlp/issues/14198)
+
+#### Core changes
+- **compat**: [Add `compat_datetime_from_timestamp`](https://github.com/yt-dlp/yt-dlp/commit/6a763a55d8a93b2a964ecf7699248ad342485412) ([#11902](https://github.com/yt-dlp/yt-dlp/issues/11902)) by [pzhlkj6612](https://github.com/pzhlkj6612), [seproDev](https://github.com/seproDev)
+- **utils**
+    - `mimetype2ext`: [Recognize `vnd.dlna.mpeg-tts`](https://github.com/yt-dlp/yt-dlp/commit/98b6b0d339130e955f9d45ce67c0357c633c1627) ([#14388](https://github.com/yt-dlp/yt-dlp/issues/14388)) by [seproDev](https://github.com/seproDev)
+    - `random_user_agent`: [Bump versions](https://github.com/yt-dlp/yt-dlp/commit/f3829463c728a5b5e62b3fc157e71c99b26edac7) ([#14317](https://github.com/yt-dlp/yt-dlp/issues/14317)) by [seproDev](https://github.com/seproDev)
+
+#### Extractor changes
+- **10play**: [Fix extractor](https://github.com/yt-dlp/yt-dlp/commit/067062bb87ac057e453ce9efdac7ca117a6a7da0) ([#14242](https://github.com/yt-dlp/yt-dlp/issues/14242)) by [Sipherdrakon](https://github.com/Sipherdrakon)
+- **applepodcast**: [Fix extractor](https://github.com/yt-dlp/yt-dlp/commit/b2c01d0498653e0239c7226c5a7fcb614dd4dbc8) ([#14372](https://github.com/yt-dlp/yt-dlp/issues/14372)) by [seproDev](https://github.com/seproDev)
+- **loco**: [Fix extractor](https://github.com/yt-dlp/yt-dlp/commit/f5cb721185e8725cf4eb4080e86aa9aa73ef25b3) ([#14256](https://github.com/yt-dlp/yt-dlp/issues/14256)) by [seproDev](https://github.com/seproDev)
+- **mitele**: [Remove extractor](https://github.com/yt-dlp/yt-dlp/commit/820c6e244571557fcfc127d4b3680e2d07c04dca) ([#14348](https://github.com/yt-dlp/yt-dlp/issues/14348)) by [bashonly](https://github.com/bashonly)
+- **newspicks**: [Warn when only preview is available](https://github.com/yt-dlp/yt-dlp/commit/9def9a4b0e958285e055eb350e5dd43b5c423336) ([#14197](https://github.com/yt-dlp/yt-dlp/issues/14197)) by [doe1080](https://github.com/doe1080)
+- **onsen**: [Add extractor](https://github.com/yt-dlp/yt-dlp/commit/17bfaa53edf5c52fce73cf0cef4592f929c2462d) ([#10971](https://github.com/yt-dlp/yt-dlp/issues/10971)) by [doe1080](https://github.com/doe1080)
+- **pixivsketch**: [Remove extractors](https://github.com/yt-dlp/yt-dlp/commit/3d9a88bd8ef149d781c7e569e48e61551eda395e) ([#14196](https://github.com/yt-dlp/yt-dlp/issues/14196)) by [doe1080](https://github.com/doe1080)
+- **smotrim**: [Rework extractors](https://github.com/yt-dlp/yt-dlp/commit/8cb037c0b06c2815080f87d61ea2e95c412785fc) ([#14200](https://github.com/yt-dlp/yt-dlp/issues/14200)) by [doe1080](https://github.com/doe1080), [swayll](https://github.com/swayll)
+- **telecinco**: [Support browser impersonation](https://github.com/yt-dlp/yt-dlp/commit/e123a48f1155703d8709a4221a42bd45c0a2b3ce) ([#14351](https://github.com/yt-dlp/yt-dlp/issues/14351)) by [bashonly](https://github.com/bashonly)
+- **tiktok**: live: [Fix room ID extraction](https://github.com/yt-dlp/yt-dlp/commit/5c1abcdc49b9d23e1dcb77b95d063cf2bf93e352) ([#14287](https://github.com/yt-dlp/yt-dlp/issues/14287)) by [bashonly](https://github.com/bashonly)
+- **ttinglive**: [Adapt FlexTV extractor to new domain](https://github.com/yt-dlp/yt-dlp/commit/4bc19adc8798e7564513898cf34adc432c6c5709) ([#14375](https://github.com/yt-dlp/yt-dlp/issues/14375)) by [seproDev](https://github.com/seproDev)
+- **tunein**: [Fix extractors](https://github.com/yt-dlp/yt-dlp/commit/7d9e48b22a780c2e8d2d2d68940d49fd2029ab70) ([#13981](https://github.com/yt-dlp/yt-dlp/issues/13981)) by [doe1080](https://github.com/doe1080)
+- **twitch**: clips: [Fix extractor](https://github.com/yt-dlp/yt-dlp/commit/f8750504c2f71b54586fb857d60dce4e354a13ea) ([#14397](https://github.com/yt-dlp/yt-dlp/issues/14397)) by [seproDev](https://github.com/seproDev)
+- **vimeo**: [Fix login error handling](https://github.com/yt-dlp/yt-dlp/commit/679587dac7cd011a1472255e1f06efb017ba91b6) ([#14280](https://github.com/yt-dlp/yt-dlp/issues/14280)) by [bashonly](https://github.com/bashonly)
+- **vk**
+    - [Support vksport URLs](https://github.com/yt-dlp/yt-dlp/commit/b81e9272dce5844e8fba371cb4b4fd95ad3ed819) ([#14341](https://github.com/yt-dlp/yt-dlp/issues/14341)) by [seproDev](https://github.com/seproDev)
+    - uservideos: [Support alternate URL format](https://github.com/yt-dlp/yt-dlp/commit/bf5d18016b03a3f2fd5d3494d9efe85d3f8beeac) ([#14376](https://github.com/yt-dlp/yt-dlp/issues/14376)) by [seproDev](https://github.com/seproDev)
+- **xhamster**: [Fix extractor](https://github.com/yt-dlp/yt-dlp/commit/a1c98226a4e869a34cc764a9dcf7a4558516308e) ([#14286](https://github.com/yt-dlp/yt-dlp/issues/14286)) by [nicolaasjan](https://github.com/nicolaasjan), [willsmillie](https://github.com/willsmillie) (With fixes in [677997d](https://github.com/yt-dlp/yt-dlp/commit/677997d84eaec0037397f7d935386daa3025b004) by [arand](https://github.com/arand), [thegymguy](https://github.com/thegymguy))
+- **youtube**: [Force player `0004de42`](https://github.com/yt-dlp/yt-dlp/commit/7f5d9f8543d19590eeec9473d54fa00151afa78a) ([#14398](https://github.com/yt-dlp/yt-dlp/issues/14398)) by [seproDev](https://github.com/seproDev)
+
+#### Misc. changes
+- **build**
+    - [Fix cache warmer](https://github.com/yt-dlp/yt-dlp/commit/8597a4331e8535a246d777bb8397bdcab251766c) ([#14261](https://github.com/yt-dlp/yt-dlp/issues/14261)) by [bashonly](https://github.com/bashonly)
+    - [Post-release workflow cleanup](https://github.com/yt-dlp/yt-dlp/commit/cd94e7004036e0149d7d3fa236c7dd44cf460788) ([#14250](https://github.com/yt-dlp/yt-dlp/issues/14250)) by [bashonly](https://github.com/bashonly)
+    - [Refactor Linux build jobs](https://github.com/yt-dlp/yt-dlp/commit/e2d37bcc8e84be9ce0f67fc24cb830c13963d10f) ([#14275](https://github.com/yt-dlp/yt-dlp/issues/14275)) by [bashonly](https://github.com/bashonly)
+    - [Use PyInstaller 6.16 for Windows](https://github.com/yt-dlp/yt-dlp/commit/df4b4e8ccf3385be6d2ad65465a0704c223dfdfb) ([#14318](https://github.com/yt-dlp/yt-dlp/issues/14318)) by [bashonly](https://github.com/bashonly)
+    - [Use SPDX license identifier](https://github.com/yt-dlp/yt-dlp/commit/48a214bef4bfd5984362d3d24b09dce50ba449ea) ([#14260](https://github.com/yt-dlp/yt-dlp/issues/14260)) by [cdce8p](https://github.com/cdce8p)
+    - [Use new PyInstaller builds for Windows](https://github.com/yt-dlp/yt-dlp/commit/c8ede5f34d6c95c442b936bb01ecbcb724aefdef) ([#14273](https://github.com/yt-dlp/yt-dlp/issues/14273)) by [bashonly](https://github.com/bashonly)
+- **ci**
+    - [Bump actions/setup-python to v6](https://github.com/yt-dlp/yt-dlp/commit/22ea0688ed6bcdbe4c51401a84239cda3decfc9c) ([#14282](https://github.com/yt-dlp/yt-dlp/issues/14282)) by [bashonly](https://github.com/bashonly)
+    - [Improve workflow checks](https://github.com/yt-dlp/yt-dlp/commit/ae3923b6b23bc62115be55510d6b5842f7a46b5f) ([#14316](https://github.com/yt-dlp/yt-dlp/issues/14316)) by [bashonly](https://github.com/bashonly)
+    - [Test and lint workflows](https://github.com/yt-dlp/yt-dlp/commit/7c9b10ebc83907d37f9f65ea9d4bd6f5e3bd1371) ([#14249](https://github.com/yt-dlp/yt-dlp/issues/14249)) by [bashonly](https://github.com/bashonly)
+    - [Test with Python 3.14](https://github.com/yt-dlp/yt-dlp/commit/83b8409366d0f9554eaeae56394b244dab64a2cb) ([#13468](https://github.com/yt-dlp/yt-dlp/issues/13468)) by [bashonly](https://github.com/bashonly)
+- **cleanup**
+    - [Bump ruff to 0.13.x](https://github.com/yt-dlp/yt-dlp/commit/ba8044685537e8e14adc6826fb4d730856fd2e2b) ([#14293](https://github.com/yt-dlp/yt-dlp/issues/14293)) by [bashonly](https://github.com/bashonly)
+    - [Deprecate various options](https://github.com/yt-dlp/yt-dlp/commit/08d78996831bd8e1e3c2592d740c3def00bbf548) ([#13821](https://github.com/yt-dlp/yt-dlp/issues/13821)) by [seproDev](https://github.com/seproDev)
+    - [Remove broken extractors](https://github.com/yt-dlp/yt-dlp/commit/65e90aea29cf3bfc9d1ae3e009fbf9a8db3a23c9) ([#14305](https://github.com/yt-dlp/yt-dlp/issues/14305)) by [bashonly](https://github.com/bashonly)
+    - [Remove setup.cfg](https://github.com/yt-dlp/yt-dlp/commit/eb4b3a5fc7765a6cd0370ca44ccee0d7d5111dd7) ([#14314](https://github.com/yt-dlp/yt-dlp/issues/14314)) by [seproDev](https://github.com/seproDev) (With fixes in [8ab262c](https://github.com/yt-dlp/yt-dlp/commit/8ab262c66bd3e1d8874fb2d070068ba1f0d48f16) by [bashonly](https://github.com/bashonly))
+    - Miscellaneous: [2e81e29](https://github.com/yt-dlp/yt-dlp/commit/2e81e298cdce23afadb06a95836284acb38f7018) by [bashonly](https://github.com/bashonly), [doe1080](https://github.com/doe1080), [seproDev](https://github.com/seproDev)
+- **docs**
+    - [Clarify license of PyInstaller-bundled executables](https://github.com/yt-dlp/yt-dlp/commit/e6e6b512141e66b1b36058966804fe59c02a2b4d) ([#14257](https://github.com/yt-dlp/yt-dlp/issues/14257)) by [seproDev](https://github.com/seproDev)
+    - [Establish AI/LLM contribution policy](https://github.com/yt-dlp/yt-dlp/commit/8821682f15af59047bc1f92724ef8a9ba30d6f7e) ([#14194](https://github.com/yt-dlp/yt-dlp/issues/14194)) by [bashonly](https://github.com/bashonly), [seproDev](https://github.com/seproDev)
+- **test**: utils: [Fix `sanitize_path` test for Windows CPython 3.11](https://github.com/yt-dlp/yt-dlp/commit/a183837ec8bb5e28fe6eb3a9d77ea2d0d7a106bd) ([#13878](https://github.com/yt-dlp/yt-dlp/issues/13878)) by [Grub4K](https://github.com/Grub4K)
+
 ### 2025.09.05
 
 #### Core changes
diff --git a/README.md b/README.md
index 9e543aeeff..f6ae18d85a 100644
--- a/README.md
+++ b/README.md
@@ -320,7 +320,6 @@ Tip: Use `CTRL`+`F` (or `Command`+`F`)  to search by keywords
                                     playlist (default)
     --abort-on-error                Abort downloading of further videos if an
                                     error occurs (Alias: --no-ignore-errors)
-    --dump-user-agent               Display the current user-agent and exit
     --list-extractors               List all supported extractors and exit
     --extractor-descriptions        Output descriptions of all supported
                                     extractors and exit
@@ -571,8 +570,6 @@ Tip: Use `CTRL`+`F` (or `Command`+`F`)  to search by keywords
                                     --playlist-random and --playlist-reverse
     --no-lazy-playlist              Process videos in the playlist only after
                                     the entire playlist is parsed (default)
-    --xattr-set-filesize            Set file xattribute ytdl.filesize with
-                                    expected file size
     --hls-use-mpegts                Use the mpegts container for HLS videos;
                                     allowing some players to play the video
                                     while downloading, and reducing the chance
@@ -596,9 +593,9 @@ Tip: Use `CTRL`+`F` (or `Command`+`F`)  to search by keywords
                                     use (optionally) prefixed by the protocols
                                     (http, ftp, m3u8, dash, rstp, rtmp, mms) to
                                     use it for. Currently supports native,
-                                    aria2c, avconv, axel, curl, ffmpeg, httpie,
-                                    wget. You can use this option multiple times
-                                    to set different downloaders for different
+                                    aria2c, axel, curl, ffmpeg, httpie, wget.
+                                    You can use this option multiple times to
+                                    set different downloaders for different
                                     protocols. E.g. --downloader aria2c
                                     --downloader "dash,m3u8:native" will use
                                     aria2c for http/ftp downloads, and the
diff --git a/supportedsites.md b/supportedsites.md
index 3937134378..513fd93989 100644
--- a/supportedsites.md
+++ b/supportedsites.md
@@ -20,7 +20,6 @@ The only reliable way to check if a site is supported is to try it.
  - **3sat**
  - **4tube**
  - **56.com**
- - **6play**
  - **7plus**
  - **8tracks**
  - **9c9media**
@@ -299,7 +298,6 @@ The only reliable way to check if a site is supported is to try it.
  - **cpac**
  - **cpac:playlist**
  - **Cracked**
- - **Crackle**
  - **Craftsy**
  - **CrooksAndLiars**
  - **CrowdBunker**
@@ -314,8 +312,6 @@ The only reliable way to check if a site is supported is to try it.
  - **curiositystream**: [*curiositystream*](## "netrc machine")
  - **curiositystream:collections**: [*curiositystream*](## "netrc machine")
  - **curiositystream:series**: [*curiositystream*](## "netrc machine")
- - **cwtv**
- - **cwtv:movie**
  - **Cybrary**: [*cybrary*](## "netrc machine")
  - **CybraryCourse**: [*cybrary*](## "netrc machine")
  - **DacastPlaylist**
@@ -450,7 +446,6 @@ The only reliable way to check if a site is supported is to try it.
  - **Filmweb**
  - **FiveThirtyEight**
  - **FiveTV**
- - **FlexTV**
  - **Flickr**
  - **Floatplane**
  - **FloatplaneChannel**
@@ -798,7 +793,6 @@ The only reliable way to check if a site is supported is to try it.
  - **mirrativ**
  - **mirrativ:user**
  - **MirrorCoUK**
- - **MiTele**: mitele.es
  - **mixch**
  - **mixch:archive**
  - **mixch:movie**
@@ -1009,6 +1003,7 @@ The only reliable way to check if a site is supported is to try it.
  - **onet.tv:channel**
  - **OnetMVP**
  - **OnionStudios**
+ - **onsen**: [*onsen*](## "netrc machine") インターネットラジオステーション＜音泉＞
  - **Opencast**
  - **OpencastPlaylist**
  - **openrec**
@@ -1033,8 +1028,6 @@ The only reliable way to check if a site is supported is to try it.
  - **Panopto**
  - **PanoptoList**
  - **PanoptoPlaylist**
- - **ParamountPlus**
- - **ParamountPlusSeries**
  - **ParamountPressExpress**
  - **Parler**: Posts on parler.com
  - **parliamentlive.tv**: UK parliament videos
@@ -1069,8 +1062,6 @@ The only reliable way to check if a site is supported is to try it.
  - **PinterestCollection**
  - **PiramideTV**
  - **PiramideTVChannel**
- - **pixiv:sketch**
- - **pixiv:​sketch:user**
  - **PlanetMarathi**
  - **Platzi**: [*platzi*](## "netrc machine")
  - **PlatziCourse**: [*platzi*](## "netrc machine")
@@ -1257,7 +1248,6 @@ The only reliable way to check if a site is supported is to try it.
  - **rutube:person**: Rutube person videos
  - **rutube:playlist**: Rutube playlists
  - **rutube:tags**: Rutube tags
- - **RUTV**: RUTV.RU
  - **Ruutu**: (**Currently broken**)
  - **Ruv**
  - **ruv.is:spila**
@@ -1332,7 +1322,10 @@ The only reliable way to check if a site is supported is to try it.
  - **Slideshare**
  - **SlidesLive**
  - **Slutload**
- - **Smotrim**
+ - **smotrim**
+ - **smotrim:audio**
+ - **smotrim:live**
+ - **smotrim:playlist**
  - **SnapchatSpotlight**
  - **Snotr**
  - **SoftWhiteUnderbelly**: [*softwhiteunderbelly*](## "netrc machine")
@@ -1370,8 +1363,6 @@ The only reliable way to check if a site is supported is to try it.
  - **Sport5**
  - **SportBox**: (**Currently broken**)
  - **SportDeutschland**
- - **spotify**: Spotify episodes (**Currently broken**)
- - **spotify:show**: Spotify shows (**Currently broken**)
  - **Spreaker**
  - **SpreakerShow**
  - **SpringboardPlatform**
@@ -1510,15 +1501,17 @@ The only reliable way to check if a site is supported is to try it.
  - **TrueID**
  - **TruNews**
  - **Truth**
+ - **ttinglive**: 띵라이브 (formerly FlexTV)
  - **Tube8**: (**Currently broken**)
  - **TubeTuGraz**: [*tubetugraz*](## "netrc machine") tube.tugraz.at
  - **TubeTuGrazSeries**: [*tubetugraz*](## "netrc machine")
  - **tubitv**: [*tubitv*](## "netrc machine")
  - **tubitv:series**
  - **Tumblr**: [*tumblr*](## "netrc machine")
- - **TuneInPodcast**
- - **TuneInPodcastEpisode**
- - **TuneInStation**
+ - **tunein:embed**
+ - **tunein:podcast**
+ - **tunein:​podcast:program**
+ - **tunein:station**
  - **tv.dfb.de**
  - **TV2**
  - **TV2Article**
@@ -1600,7 +1593,6 @@ The only reliable way to check if a site is supported is to try it.
  - **Varzesh3**: (**Currently broken**)
  - **Vbox7**
  - **Veo**
- - **Vesti**: Вести.Ru (**Currently broken**)
  - **Vevo**
  - **VevoPlaylist**
  - **VGTV**: VGTV, BTTV, FTV, Aftenposten and Aftonbladet
@@ -1748,7 +1740,6 @@ The only reliable way to check if a site is supported is to try it.
  - **wykop:​dig:comment**
  - **wykop:post**
  - **wykop:​post:comment**
- - **Xanimu**
  - **XboxClips**
  - **XHamster**
  - **XHamsterEmbed**
diff --git a/yt_dlp/version.py b/yt_dlp/version.py
index 624271cb73..83f9018e3b 100644
--- a/yt_dlp/version.py
+++ b/yt_dlp/version.py
@@ -1,8 +1,8 @@
 # Autogenerated by devscripts/update-version.py
 
-__version__ = '2025.09.05'
+__version__ = '2025.09.23'
 
-RELEASE_GIT_HEAD = '50136eeeb3767289b236f140b759f23b39b00888'
+RELEASE_GIT_HEAD = '2e81e298cdce23afadb06a95836284acb38f7018'
 
 VARIANT = None
 
@@ -12,4 +12,4 @@ CHANNEL = 'stable'
 
 ORIGIN = 'yt-dlp/yt-dlp'
 
-_pkg_version = '2025.09.05'
+_pkg_version = '2025.09.23'