X-Git-Url: https://git.notmuchmail.org/git?p=notmuch;a=blobdiff_plain;f=INSTALL;fp=INSTALL;h=9cf328eea3186910ad9dd5cbbc44893325d46b74;hp=bc7bc6778276490279dced12e32c0b39421695e5;hb=bb1f03f0b9692ca782e8c397b87a09d7455c4452;hpb=f7ac6d5c8d1db89e698c6d741cd6f5b3ca22556c

diff --git a/INSTALL b/INSTALL
index bc7bc677..9cf328ee 100644
--- a/INSTALL
+++ b/INSTALL
@@ -42,10 +42,12 @@ which are each described below:
 
 	Xapian is available from http://xapian.org
 
-	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.
 
 	GMime 2.4
 	---------