Added bool_lax{} expansion operator, which uses Router condition logic to

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

diff --git a/doc/doc-txt/NewStuff b/doc/doc-txt/NewStuff
index c4d38fd4f8b638bb977e8a641abe8d9a988e38f3..91c9b5f715ad4099962cb140a864aaa6844ffb1e 100644 (file)
--- a/doc/doc-txt/NewStuff
+++ b/doc/doc-txt/NewStuff
@@ -1,4 +1,4 @@
-$Cambridge: exim/doc/doc-txt/NewStuff,v 1.168 2010/06/05 11:13:29 pdp Exp $
+$Cambridge: exim/doc/doc-txt/NewStuff,v 1.174 2010/06/07 08:23:20 pdp Exp $
 
 New Features in Exim
 --------------------
@@ -43,6 +43,46 @@ Version 4.73
     malware-scanning framework.  This is intended purely as a debugging aid
     to ensure that Exim's scanning is working, not to replace other tools.
 
+ 5. There is a new expansion operator, "reverse_ip", which will reverse IP
+    addresses; IPv4 into dotted quad, IPv6 into dotted nibble.  Examples:
+
+      ${reverse_ip:192.0.2.4}
+       -> 4.2.0.192
+      ${reverse_ip:2001:0db8:c42:9:1:abcd:192.0.2.3}
+       -> 3.0.2.0.0.0.0.c.d.c.b.a.1.0.0.0.9.0.0.0.2.4.c.0.8.b.d.0.1.0.0.2
+
+ 6. There is a new ACL control called "debug", to enable debug logging.
+    This allows selective logging of certain incoming transactions within
+    production environments, with some care.  It takes two options, "tag"
+    and "opts"; "tag" is included in the filename of the log and "opts"
+    is used as per the -d<options> command-line option.  Examples, which
+    don't all make sense in all contexts:
+
+      control = debug
+      control = debug/tag=.$sender_host_address
+      control = debug/opts=+expand+acl
+      control = debug/tag=.$message_exim_id/opts=+expand
+
+ 7. It has always been implicit in the design and the documentation that
+    "the Exim user" is not root.  src/EDITME said that using root was
+    "very strongly discouraged".  This is not enough to keep people from
+    shooting themselves in the foot in days when many don't configure Exim
+    themselves but via package build managers.  The security consequences of
+    running various bits of network code are severe if there should be bugs in
+    them.  As such, the Exim user may no longer be root.  If configured
+    statically, Exim will refuse to build.  If configured as ref:user then Exim
+    will exit shortly after start-up.  If you must shoot yourself in the foot,
+    then henceforth you will have to maintain your own local patches to strip
+    the safeties off.
+
+ 8. There is a new expansion operator, bool_lax{}.  Where bool{} uses the ACL
+    condition logic to determine truth/failure and will fail to expand many
+    strings, bool_lax{} uses the router condition logic, where most strings
+    do evaluate true.
+    Note: bool{00} is false, bool_lax{00} is true.
+
+ 9. Routers now support multiple "condition" tests,
+
 
 Version 4.72
 ------------
@@ -86,7 +126,7 @@ Version 4.70 / 4.71
  2. Experimental DCC support via dccifd (contributed by Wolfgang Breyha).
 
  3. There is now a bool{} expansion condition which maps certain strings to
-    true/false condition values (most likely of use in conjuction with the
+    true/false condition values (most likely of use in conjunction with the
     and{} expansion operator).
 
  4. The $spam_score, $spam_bar and $spam_report variables are now available
@@ -110,6 +150,12 @@ Version 4.70 / 4.71
  9. The transport_filter_timeout option now applies to SMTP transports too.
 
 
+Version 4.69
+------------
+
+ 1. Preliminary DKIM support in Experimental.
+
+
 Version 4.68
 ------------