diff --git a/HISTORY b/HISTORY
index 082d5c61..74ead858 100644
--- a/HISTORY
+++ b/HISTORY
@@ -1,7 +1,7 @@
 SnapRAID HISTORY
 ================
 
-10.1 2016/04
+11.0 2016/05
 ============
  * In the Windows version allow to use the escape char '^' to handle
    file patterns containing real characters matching the globbing '*?[]'
@@ -9,6 +9,8 @@ SnapRAID HISTORY
    '\'.
  * Fixed running in Windows platforms that miss the RtlGenRandom
    function.
+ * Added a new 'hashsize' configuration option. It could be useful in
+   systems with low memory, to reduce the memory usage.
  * Added the --test-io-cache=1 option to disable the multithread IO
    mode.
 
diff --git a/TODO b/TODO
index 3dcb4c73..3a0a2b69 100644
--- a/TODO
+++ b/TODO
@@ -5,13 +5,6 @@ This is the list of TODO items for SnapRAID.
 
 - Next
 
-* Use smaller hashes to reduce the memory occupation. We can truncate the 128 bits hash
-to 32 or 64 bits and reduce the memory usage by a factor of 4 or 2.
-ZFS, and Btrfs supports the 32 bit CRCs. To identify bad blocks it should be enough.
-But this likely means to drop the dup and --import feature. We cannot trust a 32 bits hash
-as a 128 bits one to search for blocks.
-It should be optional, only for architectures with very low memory.
-
 * Allow to specify more than one partition for each parity disk.
 Checking the UUID, we can avoid that users mess-up with disk specifications.
 See discussion at: