Work on IRIX by setting _XPG=1

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

diff --git a/doc/doc-txt/NewStuff b/doc/doc-txt/NewStuff
index 91c9b5f715ad4099962cb140a864aaa6844ffb1e..b940afe349da8ec001874bd5accb7488798acedb 100644 (file)
--- a/doc/doc-txt/NewStuff
+++ b/doc/doc-txt/NewStuff
@@ -1,4 +1,4 @@
-$Cambridge: exim/doc/doc-txt/NewStuff,v 1.174 2010/06/07 08:23:20 pdp Exp $
+$Cambridge: exim/doc/doc-txt/NewStuff,v 1.176 2010/06/14 18:51:10 pdp Exp $

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


@@ -9,9 +9,51 @@ test from the snapshots or the CVS before the documentation is updated. Once
 the documentation is updated, this file is reduced to a short list.
 
 
 the documentation is updated, this file is reduced to a short list.
 
 

+Version 4.75
+------------
+
+ 1. In addition to the existing LDAP and LDAP/SSL ("ldaps") support, there
+    is now LDAP/TLS support, given sufficiently modern OpenLDAP client
+    libraries.  The following global options have been added in support of
+    this: ldap_ca_cert_dir, ldap_ca_cert_file, ldap_cert_file, ldap_cert_key,
+    ldap_cipher_suite, ldap_require_cert, ldap_start_tls.
+
+ 2. The pipe transport now takes a boolean option, "freeze_signal", default
+    false.  When true, if the external delivery command exits on a signal then
+    Exim will freeze the message in the queue, instead of generating a bounce.
+
+ 3. Log filenames may now use %M as an escape, instead of %D (still available).
+    The %M pattern expands to yyyymm, providing month-level resolution.
+
+ 4. The $message_linecount variable is now updated for the maildir_tag option,
+    in the same way as $message_size, to reflect the real number of lines,
+    including any header additions or removals from transport.
+
+ 5. When contacting a pool of SpamAssassin servers configured in spamd_address,
+    Exim now selects entries randomly, to better scale in a cluster setup.
+
+
+Version 4.74
+------------
+
+ 1. SECURITY FIX: privilege escalation flaw fixed. On Linux (and only Linux)
+    the flaw permitted the Exim run-time user to cause root to append to
+    arbitrary files of the attacker's choosing, with the content based
+    on content supplied by the attacker.
+
+ 2. Exim now supports loading some lookup types at run-time, using your
+    platform's dlopen() functionality.  This has limited platform support
+    and the intention is not to support every variant, it's limited to
+    dlopen().  This permits the main Exim binary to not be linked against
+    all the libraries needed for all the lookup types.
+
+

 Version 4.73
 ------------
 
 Version 4.73
 ------------
 

+ NOTE: this version is not guaranteed backwards-compatible, please read the
+       items below carefully
+

  1. A new main configuration option, "openssl_options", is available if Exim
     is built with SSL support provided by OpenSSL.  The option allows
     administrators to specify OpenSSL options to be used on connections;
  1. A new main configuration option, "openssl_options", is available if Exim
     is built with SSL support provided by OpenSSL.  The option allows
     administrators to specify OpenSSL options to be used on connections;


@@ -38,10 +80,14 @@ Version 4.73
 
       av_scanner = clamd:192.0.2.3 1234:local
 
 
       av_scanner = clamd:192.0.2.3 1234:local
 

+    ClamAV's ExtendedDetectionInfo response format is now handled.
+

  4. There is now a -bmalware option, restricted to admin users.  This option
     takes one parameter, a filename, and scans that file with Exim's
     malware-scanning framework.  This is intended purely as a debugging aid
     to ensure that Exim's scanning is working, not to replace other tools.
  4. There is now a -bmalware option, restricted to admin users.  This option
     takes one parameter, a filename, and scans that file with Exim's
     malware-scanning framework.  This is intended purely as a debugging aid
     to ensure that Exim's scanning is working, not to replace other tools.

+    Note that the ACL framework is not invoked, so if av_scanner references
+    ACL variables without a fallback then this will fail.

 
  5. There is a new expansion operator, "reverse_ip", which will reverse IP
     addresses; IPv4 into dotted quad, IPv6 into dotted nibble.  Examples:
 
  5. There is a new expansion operator, "reverse_ip", which will reverse IP
     addresses; IPv4 into dotted quad, IPv6 into dotted nibble.  Examples:


@@ -83,6 +129,32 @@ Version 4.73
 
  9. Routers now support multiple "condition" tests,
 
 
  9. Routers now support multiple "condition" tests,
 

+10. There is now a runtime configuration option "tcp_wrappers_daemon_name".
+    Setting this allows an admin to define which entry in the tcpwrappers
+    config file will be used to control access to the daemon.  This option
+    is only available when Exim is built with USE_TCP_WRAPPERS.  The
+    default value is set at build time using the TCP_WRAPPERS_DAEMON_NAME
+    build option.
+
+11. [POSSIBLE CONFIG BREAKAGE] The default value for system_filter_user is now
+    the Exim run-time user, instead of root.
+
+12. [POSSIBLE CONFIG BREAKAGE] ALT_CONFIG_ROOT_ONLY is no longer optional and
+    is forced on.  This is mitigated by the new build option
+    TRUSTED_CONFIG_LIST which defines a list of configuration files which
+    are trusted; one per line. If a config file is owned by root and matches
+    a pathname in the list, then it may be invoked by the Exim build-time
+    user without Exim relinquishing root privileges.
+
+13. [POSSIBLE CONFIG BREAKAGE] The Exim user is no longer automatically
+    trusted to supply -D<Macro[=Value]> overrides on the command-line.  Going
+    forward, we recommend using TRUSTED_CONFIG_LIST with shim configs that
+    include the main config.  As a transition mechanism, we are temporarily
+    providing a work-around: the new build option WHITELIST_D_MACROS provides
+    a colon-separated list of macro names which may be overriden by the Exim
+    run-time user.  The values of these macros are constrained to the regex
+    ^[A-Za-z0-9_/.-]*$ (which explicitly does allow for empty values).
+

 
 Version 4.72
 ------------
 
 Version 4.72
 ------------