+Notmuch 0.10 (2011-xx-xx)
+=========================
+
+New build and testing features
+------------------------------
+
+Emacs tests are now done in dtach. This means that dtach is now
+needed to run the notmuch test suite, at least until the checking for
+prerequisites is improved.
+
+New command-line features
+-------------------------
+
+Add "notmuch restore --accumulate" option
+
+ The --accumulate switch causes the union of the existing and new tags to be
+ applied, instead of replacing each message's tags as they are read in from
+ the dump file.
+
+Add search terms to "notmuch dump"
+
+ The dump command now takes an optional search term much like notmuch
+ search/show/tag. The output file argument of dump is deprecated in
+ favour of using stdout.
+
+Optimizations
+-------------
+
+Search avoids opening and parsing message files
+
+ We now store more information in the database so search no longer
+ has to open every message file to get basic headers. This can
+ improve search speed by as much as 10X, but taking advantage of this
+ requires a database rebuild:
+
+ notmuch dump > notmuch.dump
+ # Backup, then remove notmuch database ($MAIL/.notmuch)
+ notmuch new
+ notmuch restore notmuch.dump
+