-$Cambridge: exim/doc/doc-txt/NewStuff,v 1.31 2005/03/29 14:19:21 ph10 Exp $
+$Cambridge: exim/doc/doc-txt/NewStuff,v 1.100 2006/04/18 11:13:19 ph10 Exp $
New Features in Exim
--------------------
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 4.62
------------
-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.
+1. The ${readsocket expansion item now supports Internet domain sockets as well
+ as Unix domain sockets. If the first argument begins "inet:", it must be of
+ the form "inet:host:port". The port is mandatory; it may be a number or the
+ name of a TCP port in /etc/services. The host may be a name, or it may be an
+ IP address. An ip address may optionally be enclosed in square brackets.
+ This is best for IPv6 addresses. For example:
- 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.
+ ${readsocket{inet:[::1]:1234}{<request data>}...
- 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:
+ Only a single host name may be given, but if looking it up yield more than
+ one IP address, they are each tried in turn until a connection is made. Once
+ a connection has been made, the behaviour is as for ${readsocket with a Unix
+ domain socket.
- # 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
- If Exim never has to generate the parameters itself, the possibility of
- stalling is removed.
+Version 4.61
+------------
-PH/02 A new expansion item for dynamically loading and calling a locally-
- written C function is now provided, if Exim is compiled with
+The documentation is up-to-date for the 4.61 release. Major new features since
+the 4.60 release are:
- EXPAND_DLFUNC=yes
+. An option called disable_ipv6, to disable the use of IPv6 completely.
- 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.)
+. An increase in the number of ACL variables to 20 of each type.
- 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 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.
- You load and call an external function like this:
+. The default for rfc1413_query_timeout has been changed from 30s to 5s.
- ${dlfunc{/some/file}{function}{arg1}{arg2}...}
+. It is possible to use setclassresources() on some BSD OS to control the
+ resources used in pipe deliveries.
- 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).
+. A new ACL modifier called add_header, which can be used with any verb.
- 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:
+. More errors are detectable in retry rules.
- int dlfunction(uschar **yield, int argc, uschar *argv[])
+There are a number of other additions too.
- Where "uschar" is a typedef for "unsigned char" in local_scan.h. The
- function should return one of the following values:
- OK Success. The string that is placed in "yield" is put into
- the expanded string that is being built.
+Version 4.60
+------------
- FAIL A non-forced expansion failure occurs, with the error
- message taken from "yield", if it is set.
+The documentation is up-to-date for the 4.60 release. Major new features since
+the 4.50 release are:
- FAIL_FORCED A forced expansion failure occurs, with the error message
- taken from "yield" if it is set.
+. Support for SQLite.
- ERROR Same as FAIL, except that a panic log entry is written.
+. Support for IGNOREQUOTA in LMTP.
- 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.
+. Extensions to the "submission mode" features.
-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.
+. Support for Client SMTP Authorization (CSA).
-PH/03 There is a new value for RADIUS_LIB_TYPE that can be set in
- Local/Makefile. It is RADIUSCLIENTNEW, and it requests that the new API,
- in use from radiusclient 0.4.0 onwards, be used. It does not appear to be
- possible to detect the different versions automatically.
+. Support for ratelimiting hosts and users.
+. 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.
****
git://git.exim.org / users / heiko / exim.git / blobdiff