news: Store "from" and "subject" headers in the database.

[notmuch] / NEWS

diff --git a/NEWS b/NEWS
index b44b11e2d39d715bdc46cb8aa7bf50a4525a6022..88f7b204f8178c641e45969ca5fc307d8e7864cc 100644 (file)
--- a/NEWS
+++ b/NEWS
@@ -4,9 +4,9 @@ Notmuch 0.10 (2011-xx-xx)
 New build and testing features
 ------------------------------
 
 New build and testing features
 ------------------------------
 

-Emacs tests are now done in screen. This means that screen is now
+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
 needed to run the notmuch test suite, at least until the checking for

-screen is improved.
+prerequisites is improved.

 
 New command-line features
 -------------------------
 
 New command-line features
 -------------------------


@@ -23,6 +23,21 @@ Add search terms to  "notmuch dump"
   search/show/tag. The output file argument of dump is deprecated in
   favour of using stdout.
 
   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
+

 Notmuch 0.9 (2011-10-01)
 ========================
 
 Notmuch 0.9 (2011-10-01)
 ========================