- After installing Xapian, please ensure that you have a command
- named "xapian-config" on your $PATH as notmuch expects. (At
- least one notmuch user found that Xapian installed the config
- program to /usr/local/bin/xapian-config-1.1 ).
+ Note: Notmuch will work best with Xapian 1.0.18 (or later) or
+ Xapian 1.1.4 (or later). Previous versions of Xapian (whether
+ 1.0 or 1.1) had a performance bug that made notmuch very slow
+ when modifying tags. This would cause distracting pauses when
+ reading mail while notmuch would wait for Xapian when removing
+ the "inbox" and "unread" tags from messages in a thread.