Add Mempool 3.0 release notes

mempool/umbrel-app.yml

@@ -13,10 +13,36 @@ description: >-
 
   This product includes GeoLite2 data created by MaxMind, available from https://www.maxmind.com
 releaseNotes: >-
-  This update brings a brand new mempool widget, allowing you to see the recommended fees at a glance right from your umbrelOS home screen.
+  The Mempool Open Source Project® v3.0.0 is here!
 
 
-  To add this widget, right-click on your home screen and select "Edit widgets", or click on Widgets in the Dock.
+  This release features integration with our new Mempool Accelerator™ service to help you get your stuck Bitcoin transactions confirmed quickly.
+  You can now submit accceleration requests directly to mempool.space from your own self-hosted instance of The Mempool Open Source Project®.
+  
+
+  Highlights:
+
+    - Added Mempool Accelerator™ to accelerate TX from your own instance
+    - Added Mempool Googles™ new mempool and blockchain analytics tool
+    - Added RBF Timeline visualizations including support for FullRBF
+    - Added CPFP and Effective Fee calculations in block visualizations
+    - Added Liquid Network audit tool to verify holdings vs liabilities
+    - Added new Wallet Balance widget for embedding into external sites
+    - Added customizable CSS themes including a new high-contrast mode
+    - Added optional support for FreecurrencyAPI fiat currencies
+    - Added optional Redis support for faster in-memory database
+    - Added support for legacy P2PK addresses and outputs
+    - Added new block fees graph at /graphs/mining/block-fees
+    - Added new fiat calculator at /tools/calculator
+    - Re-implemented our GBT algorithm in rust for high performance
+    - Re-designed transaction page with new mobile "pizza tracker" UI
+    - Re-designed address page with new balance history over time
+    - Improved Block Audit for accelerated transaction out-of-band fees
+    - Improved Websocket API to support tracking multiple addresses
+    - Improved search box now supports searching multiple networks
+    - Improved TV View to add new circular clock face view
+
+  Full release notes are found at https://github.com/mempool/mempool/releases
 developer: Mempool Space K.K.
 website: https://mempool.space/about
 dependencies: