Document the acl/add_header fix.

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

diff --git a/doc/doc-txt/NewStuff b/doc/doc-txt/NewStuff
index 053bdabab7db40bb3e2e14da756edaac67d23f50..435769f784922919f6abf296924937de1f5bb21e 100644 (file)
--- a/doc/doc-txt/NewStuff
+++ b/doc/doc-txt/NewStuff
@@ -1,4 +1,4 @@
-$Cambridge: exim/doc/doc-txt/NewStuff,v 1.30 2005/03/22 16:52:06 ph10 Exp $
+$Cambridge: exim/doc/doc-txt/NewStuff,v 1.98 2006/04/04 14:03:50 ph10 Exp $

 
 New Features in Exim
 --------------------
 
 New Features in Exim
 --------------------


@@ -8,92 +8,52 @@ but have not yet made it into the main manual (which is most conveniently
 updated when there is a relatively large batch of changes). The doc/ChangeLog
 file contains a listing of all changes, including bug fixes.
 
 updated when there is a relatively large batch of changes). The doc/ChangeLog
 file contains a listing of all changes, including bug fixes.
 

-
-Version 4.51
+Version 4.61

 ------------
 
 ------------
 

-PH/01 The format in which GnuTLS parameters are written to the gnutls-param
-      file in the spool directory has been changed. This change has been made
-      to alleviate problems that some people had with the generation of the
-      parameters by Exim when /dev/random was exhausted. In this situation,
-      Exim would hang until /dev/random acquired some more entropy.
-
-      The new code exports and imports the DH and RSA parameters in PEM
-      format. This means that the parameters can be generated externally using
-      the certtool command that is part of GnuTLS.
-
-      To replace the parameters with new ones, instead of deleting the file
-      and letting Exim re-create it, you can generate new parameters using
-      certtool and, when this has been done, replace Exim's cache file by
-      renaming. The relevant commands are something like this:
+The documentation is up-to-date for the 4.61 release. Major new features since
+the 4.60 release are:

 
 

-        # rm -f new.params
-        # touch new.params
-        # chown exim:exim new.params
-        # chmod 0400 new.params
-        # certtool --generate-privkey --bits 512 >new.params
-        # echo "" >>new.params
-        # certtool --generate-dh-params --bits 1024 >> new.params
-        # mv new.params params
+. An option called disable_ipv6, to disable the use of IPv6 completely.

 
 

-      If Exim never has to generate the parameters itself, the possibility of
-      stalling is removed.
+. An increase in the number of ACL variables to 20 of each type.

 
 

-PH/02 A new expansion item for dynamically loading and calling a locally-
-      written C function is now provided, if Exim is compiled with
+. A change to use $auth1, $auth2, and $auth3 in authenticators instead of $1,
+  $2, $3, (though those are still set) because the numeric variables get used
+  for other things in complicated expansions.

 
 

-        EXPAND_DLFUNC=yes
+. The default for rfc4131_query_timeout has been changed from 30s to 5s.

 
 

-      set in Local/Makefile. The facility is not included by default (a
-      suitable error is given if you try to use it when it is not there.)
+. It is possible to use setclassresources() on some BSD OS to control the
+  resources used in pipe deliveries.

 
 

-      If you enable EXPAND_DLFUNC, you should also be aware of the new redirect
-      router option forbid_filter_dlfunc. If you have unprivileged users on
-      your system who are permitted to create filter files, you might want to
-      set forbid_filter_dlfunc=true in the appropriate router, to stop them
-      using ${dlfunc to run code within Exim.
+. A new ACL modifier called add_header, which can be used with any verb.

 
 

-      You load and call an external function like this:
+. More errors are detectable in retry rules.

 
 

-        ${dlfunc{/some/file}{function}{arg1}{arg2}...}
+There are a number of other additions too.

 
 

-      Once loaded, Exim remembers the dynamically loaded object so that it
-      doesn't reload the same object file in the same Exim process (but of
-      course Exim does start new processes frequently).

 
 

-      There may be from zero to eight arguments to the function. When compiling
-      a local function that is to be called in this way, local_scan.h should be
-      included. The Exim variables and functions that are defined by that API
-      are also available for dynamically loaded functions. The function itself
-      must have the following type:
-
-        int dlfunction(uschar **yield, int argc, uschar *argv[])
+Version 4.60
+------------

 
 

-      Where "uschar" is a typedef for "unsigned char" in local_scan.h. The
-      function should return one of the following values:
+The documentation is up-to-date for the 4.60 release. Major new features since
+the 4.50 release are:

 
 

-      OK            Success. The string that is placed in "yield" is put into
-                    the expanded string that is being built.
+. Support for SQLite.

 
 

-      FAIL          A non-forced expansion failure occurs, with the error
-                    message taken from "yield", if it is set.
+. Support for IGNOREQUOTA in LMTP.

 
 

-      FAIL_FORCED   A forced expansion failure occurs, with the error message
-                    taken from "yield" if it is set.
+. Extensions to the "submission mode" features.

 
 

-      ERROR         Same as FAIL, except that a panic log entry is written.
+. Support for Client SMTP Authorization (CSA).

 
 

-      When compiling a function that is to be used in this way with gcc,
-      you need to add -shared to the gcc command. Also, in the Exim build-time
-      configuration, you must add -export-dynamic to EXTRALIBS.
+. Support for ratelimiting hosts and users.

 
 

-TF/01 $received_time is a new expansion variable containing the time and date
-      as a number of seconds since the start of the Unix epoch when the
-      current message was received.
+. New expansion items to help with the BATV "prvs" scheme.

 
 

-Version 4.50
-------------
+. A "match_ip" condition, that matches an IP address against a list.

 
 

-The documentation is up-to-date for the 4.50 release.
+There are many more minor changes.

 
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