diff --git a/CONTRIBUTORS b/CONTRIBUTORS
index 10b5e8b66a..35a0764a29 100644
--- a/CONTRIBUTORS
+++ b/CONTRIBUTORS
@@ -177,3 +177,4 @@ Sematre
 jaller94
 r5d
 julien-hadleyjack
+git-anony-mouse
diff --git a/Changelog.md b/Changelog.md
index 0d945b9457..5c30457023 100644
--- a/Changelog.md
+++ b/Changelog.md
@@ -11,6 +11,24 @@
 -->
 
 
+### 2021.12.27
+
+* Avoid recursion error when re-extracting info
+* [ffmpeg] Fix position of `--ppa`
+* [aria2c] Don't show progress when `--no-progress`
+* [cookies] Support other keyrings by [mbway](https://github.com/mbway)
+* [EmbedThumbnail] Prefer AtomicParsley over ffmpeg if available
+* [generic] Fix HTTP KVS Player by [git-anony-mouse](https://github.com/git-anony-mouse)
+* [ThumbnailsConvertor] Fix for when there are no thumbnails
+* [docs] Add examples for using `TYPES:` in `-P`/`-o`
+* [PixivSketch] Add extractors by [nao20010128nao](https://github.com/nao20010128nao)
+* [tiktok] Add music, sticker and tag IEs by [MinePlayersPE](https://github.com/MinePlayersPE)
+* [BiliIntl] Fix extractor by [MinePlayersPE](https://github.com/MinePlayersPE)
+* [CBC] Fix URL regex
+* [tiktok] Fix `extractor_key` used in archive
+* [youtube] **End `live-from-start` properly when stream ends with 403**
+* [Zee5] Fix VALID_URL for tv-shows by [Ashish0804](https://github.com/Ashish0804)
+
 ### 2021.12.25
 
 * [dash,youtube] **Download live from start to end** by [nao20010128nao](https://github.com/nao20010128nao), [pukkandan](https://github.com/pukkandan)
@@ -104,7 +122,7 @@
 * [youtube:comments] Add more options for limiting number of comments extracted by [coletdjnz](https://github.com/coletdjnz)
 * [youtube:tab] Extract more metadata from feeds/channels/playlists by [coletdjnz](https://github.com/coletdjnz)
 * [youtube:tab] Extract video thumbnails from playlist by [coletdjnz](https://github.com/coletdjnz), [pukkandan](https://github.com/pukkandan)
-* [youtube:tab] Ignore query when redirecting channel to playlist and cleanup of related code Closes #2046
+* [youtube:tab] Ignore query when redirecting channel to playlist and cleanup of related code
 * [youtube] Fix `ytsearchdate`
 * [zdf] Support videos with different ptmd location by [iw0nderhow](https://github.com/iw0nderhow)
 * [zee5] Support /episodes in URL
diff --git a/supportedsites.md b/supportedsites.md
index 9ed10f14a5..9dc94f27d3 100644
--- a/supportedsites.md
+++ b/supportedsites.md
@@ -836,6 +836,8 @@
  - **Pinkbike**
  - **Pinterest**
  - **PinterestCollection**
+ - **pixiv:sketch**
+ - **pixiv:sketch:user**
  - **Pladform**
  - **PlanetMarathi**
  - **Platzi**
@@ -1141,6 +1143,9 @@
  - **ThreeSpeak**
  - **ThreeSpeakUser**
  - **TikTok**
+ - **tiktok:effect**
+ - **tiktok:sound**
+ - **tiktok:tag**
  - **tiktok:user**
  - **tinypic**: tinypic.com videos
  - **TMZ**