diff --git a/RELEASE_NOTES.md b/RELEASE_NOTES.md
index 988372e..960b01e 100644
--- a/RELEASE_NOTES.md
+++ b/RELEASE_NOTES.md
@@ -1,19 +1,18 @@
-# TypeType 1.7.2
+# TypeType 1.7.3
 
-TypeType 1.7.2 is a focused Token hotfix for YouTube videos that stopped starting after an anonymous playback identity was rejected.
+TypeType 1.7.3 fixes BiliBili videos that failed during stream extraction after a metadata format change.
 
 ## Playback
 
-- Detect anonymous YouTube `LOGIN_REQUIRED` responses during MWEB and WEB SABR session creation.
-- Discard the rejected Innertube and BotGuard identity before obtaining fresh visitor-bound and video-bound PO-token material.
-- Retry session creation once with the new identity while preserving bounded recovery behavior.
-- Update TypeType-Token to `1.7.2`. [PR #16](https://github.com/TypeType-Video/TypeType-Token/pull/16)
+- Update PipePipeExtractor to the BiliBili metadata fix used by TypeType-Server.
+- Restore BiliBili stream extraction and preserve the available audio and video formats.
+- Update TypeType-Server to `1.7.2`. [PR #83](https://github.com/TypeType-Video/TypeType-Server/pull/83)
 
 No frontend change, configuration change or manual database migration is required.
 
 ## Thx
 
-Thx to everyone who reported videos failing to start and shared detailed playback diagnostics.
+Thx to everyone who reported BiliBili playback failures and shared detailed diagnostics.
 
 A special thx to sponsors [@Toastienergy](https://github.com/Toastienergy) and [@filippobaroni](https://github.com/filippobaroni) for supporting TypeType.
 
diff --git a/TypeType-Server b/TypeType-Server
index 8ac0d25..3bbda24 160000
--- a/TypeType-Server
+++ b/TypeType-Server
@@ -1 +1 @@
-Subproject commit 8ac0d25a90d525e2ac6ca00f54b54aa904f3a325
+Subproject commit 3bbda2452eec7640342556e7630c5b086103f3f8