Merge branch 'release-0.3' into develop

docs/RELEASE-NOTES

@@ -1,3 +1,16 @@
+Version 0.3
+-----------
+
+- Database format has changed; old DBs are incompatible.  They will
+  not work and will probably die miserably as I'm not yet versioning
+  them for helpful warnings (coming soon).
+- The change in on-disk format makes UTXO flushes noticeably more
+  efficient.  My gut feeling is it probably benefits HDDs more than
+  SSDs, but I have no numbers to back that up other than that my HDD
+  synced about 90 minutes (10%) faster.  Until the treacle hits at
+  blocks 300k+ there will probably be little noticeable difference in
+  sync time.
+
 Version 0.2.3
 -------------
 

server/block_processor.py

@@ -302,8 +302,8 @@ class MemPool(LoggedClass):
         Can be positive or negative.
         '''
         value = 0
-        for tx_hash in self.hash168s[hash168]:
+        for hex_hash in self.hash168s[hash168]:
-            txin_pairs, txout_pairs, unconfirmed = self.txs[tx_hash]
+            txin_pairs, txout_pairs, unconfirmed = self.txs[hex_hash]
             value -= sum(v for h168, v in txin_pairs if h168 == hash168)
             value += sum(v for h168, v in txout_pairs if h168 == hash168)
         return value
@@ -317,8 +317,6 @@ class BlockProcessor(server.db.DB):
     '''
 
     def __init__(self, env):
-        '''on_update is awaitable, and called only when caught up with the
-        daemon and a new block arrives or the mempool is updated.'''
         super().__init__(env)
 
         # These are our state as we move ahead of DB state

server/protocol.py

@@ -36,8 +36,6 @@ class BlockServer(BlockProcessor):
     '''Like BlockProcessor but also starts servers when caught up.'''
 
     def __init__(self, env):
-        '''on_update is awaitable, and called only when caught up with the
-        daemon and a new block arrives or the mempool is updated.'''
         super().__init__(env)
         self.servers = []
 

server/version.py

@@ -1 +1 @@
-VERSION = "ElectrumX 0.2.3"
+VERSION = "ElectrumX 0.3"