tweak release notes for 3.3

RELEASE-NOTES

@@ -1,13 +1,29 @@
-# Release 3.3 - (Hodler's Edition)
+# Release 3.3.0 - Hodler's Edition (unreleased)
 
- * The network layer has been rewritten using asyncio.
- * Follow blockchain that has the most work, not length.
+ * The network layer has been rewritten using asyncio and aiorpcx.
+   In addition to easier maintenance, this makes the client
+   more robust against misbehaving servers.
+ * The minimum python version was increased to 3.6
+ * The blockchain headers and fork handling logic has been generalized.
+   Clients by default now follow chain based on most work, not length.
  * New wallet creation defaults to native segwit (bech32).
- * RBF batching (option): If the wallet has an unconfirmed RBF
+ * RBF batching (opt-in): If the wallet has an unconfirmed RBF
    transaction, new payments will be added to that transaction,
    instead of creating new transactions.
- * OSX: support QR code scanner.
- * Android APK: Use API 28, and do not use external storage.
+ * MacOS: support QR code scanner in binaries.
+ * Android APK:
+   - build using Google NDK instead of Crystax NDK
+   - target API 28
+   - do not use external storage (previously for block headers)
+ * hardware wallets:
+   - Coldcard now supports spending from p2wpkh-p2sh,
+     fixed p2pkh signing for fw 1.1.0
+   - Archos Safe-T mini: fix #4726 signing issue
+   - KeepKey: full segwit support
+   - Trezor: refactoring and compat with python-trezor 0.11
+   - Digital BitBox: support firmware v5.0.0
+ * fix bitcoin URI handling when app already running (#4796)
+ * Several other minor bugfixes and usability improvements.
 
 
 # Release 3.2.3 - (September 3, 2018)