Jori Hamalainen's patch to speed up exigrep, and fix two typos.

[users/heiko/exim.git] / doc / doc-txt / NewStuff

diff --git a/doc/doc-txt/NewStuff b/doc/doc-txt/NewStuff
index 43be722b0c2f0f08740aef453cb26b856e521fd1..04177227d7447d992442c7f83bed0d949a4e6f32 100644 (file)
--- a/doc/doc-txt/NewStuff
+++ b/doc/doc-txt/NewStuff
@@ -1,4 +1,4 @@
-$Cambridge: exim/doc/doc-txt/NewStuff,v 1.137 2007/02/06 11:11:39 ph10 Exp $
+$Cambridge: exim/doc/doc-txt/NewStuff,v 1.140 2007/02/07 12:23:35 ph10 Exp $
 
 New Features in Exim
 --------------------
@@ -233,8 +233,12 @@ Version 4.67
     time and date.
 
 11. Exim has been modified so that it flushes SMTP output before implementing
-    a delay in an ACL. This behaviour can be disabled by obeying control =
-    no_delay_flush at some earlier point.
+    a delay in an ACL. It also flushes the output before performing a callout,
+    as this can take a substantial time. These behaviours can be disabled by
+    obeying control = no_delay_flush or control = no_callout_flush,
+    respectively, at some earlier stage of the connection. The effect of the
+    new default behaviour is to disable the PIPELINING optimization in these
+    situations, in order to avoid unexpected timeouts in clients.
 
 12. There are two new expansion conditions that iterate over a list. They are
     called forany and forall, and they are used like this:
@@ -278,6 +282,16 @@ Version 4.67
     The value is expanded every time it is needed. If the expansion fails, a
     panic is logged, and the default setting is used.
 
+14. The smtp transport has a new option called hosts_avoid_pipelining. It can
+    be used to suppress the use of PIPELINING to certain hosts, while still
+    supporting the other SMTP extensions (cf hosts_avoid_tls).
+
+15. By default, exigrep does case-insensitive matches. There is now a -I option
+    that makes it case-sensitive. This may give a performance improvement when
+    searching large log files. Without -I, the Perl pattern matches use the /i
+    option; with -I they don't. In both cases it is possible to change the case
+    sensitivity within the pattern using (?i) or (?-i).
+
 
 Version 4.66
 ------------