X-Git-Url: https://git.exim.org/users/heiko/exim.git/blobdiff_plain/240c288fabd47aa8daf34c06b77a40fd37add470..2eec84caa477a4b3b1f9fff999000768f65bd936:/doc/doc-txt/NewStuff diff --git a/doc/doc-txt/NewStuff b/doc/doc-txt/NewStuff index 7e530ce5d..603351dc8 100644 --- a/doc/doc-txt/NewStuff +++ b/doc/doc-txt/NewStuff @@ -3,9 +3,75 @@ New Features in Exim This file contains descriptions of new features that have been added to Exim. Before a formal release, there may be quite a lot of detail so that people can -test from the snapshots or the CVS before the documentation is updated. Once +test from the snapshots or the Git before the documentation is updated. Once the documentation is updated, this file is reduced to a short list. +Version 4.89 +------------ + + 1. Allow relative config file names for ".include" + + +Version 4.88 +------------ + + 1. The new perl_taintmode option allows to run the embedded perl + interpreter in taint mode. + + 2. New log_selector: dnssec, adds a "DS" tag to acceptance and delivery lines. + + 3. Speculative debugging, via a "kill" option to the "control=debug" ACL + modifier. + + 4. New expansion item ${sha3:} / ${sha3_:}. + N can be 224, 256 (default), 384, 512. + With GnuTLS 3.5.0 or later, only. + + 5. Facility for named queues: A command-line argument can specify + the queue name for a queue operation, and an ACL modifier can set + the queue to be used for a message. A $queue_name variable gives + visibility. + + 6. New expansion operators base32/base32d. + + 7. The CHUNKING ESMTP extension from RFC 3030. May give some slight + performance increase and network load decrease. Main config option + chunking_advertise_hosts, and smtp transport option hosts_try_chunking + for control. + + 8. LMDB lookup support, as Experimental. Patch supplied by Andrew Colin Kissa. + + 9. Expansion operator escape8bit, like escape but not touching newline etc.. + +10. Feature macros, generated from compile options. All start with "_HAVE_" + and go on with some roughly recognisable name. Driver macros, for + router, transport and authentication drivers; names starting with "_DRIVER_". + Option macros, for each configuration-file option; all start with "_OPT_". + Use the "-bP macros" command-line option to see what is present. + +11. Integer values for options can take a "G" multiplier. + +12. defer=pass option for the ACL control cutthrough_delivery, to reflect 4xx + returns from the target back to the initiator, rather than spooling the + message. + +13. New built-in constants available for tls_dhparam and default changed. + +14. If built with EXPERIMENTAL_QUEUEFILE, a queuefile transport, for writing + out copies of the message spool files for use by 3rd-party scanners. + +15. A new option on the smtp transport, hosts_try_fastopen. If the system + supports it (on Linux it must be enabled in the kernel by the sysadmin) + try to use RFC 7413 "TCP Fast Open". No data is sent on the SYN segment + but it permits a peer that also supports the facility to send its SMTP + banner immediately after the SYN,ACK segment rather then waiting for + another ACK - so saving up to one roundtrip time. Because it requires + previous communication with the peer (we save a cookie from it) this + will only become active on frequently-contacted destinations. + +16. A new syslog_pid option to suppress PID duplication in syslog lines. + + Version 4.87 ------------ @@ -26,6 +92,17 @@ Version 4.87 5. New "-bP config" support, to dump the effective configuration. + 6. New $dkim_key_length variable. + + 7. New base64d and base64 expansion items (the existing str2b64 being a + synonym of the latter). Add support in base64 for certificates. + + 8. New main configuration option "bounce_return_linesize_limit" to + avoid oversize bodies in bounces. The default value matches RFC + limits. + + 9. New $initial_cwd expansion variable. + Version 4.86 ------------ @@ -41,7 +118,7 @@ Version 4.86 5. Assorted options on malware= and spam= scanners. - 6. A commandline option to write a comment into the logfile. + 6. A command-line option to write a comment into the logfile. 7. If built with EXPERIMENTAL_SOCKS feature enabled, the smtp transport can be configured to make connections via socks5 proxies. @@ -69,7 +146,7 @@ Version 4.85 ------------ 1. If built with EXPERIMENTAL_DANE feature enabled, Exim will follow the - DANE smtp draft to assess a secure chain of trust of the certificate + DANE SMTP draft to assess a secure chain of trust of the certificate used to establish the TLS connection based on a TLSA record in the domain of the sender. @@ -258,14 +335,14 @@ Version 4.82 "aaaa" and "a" lookups is done and the full set of results returned. 14. New expansion variable $headers_added with content from ACL add_header - modifier (but not yet added to messsage). + modifier (but not yet added to message). 15. New 8bitmime status logging option for received messages. Log field "M8S". 16. New authenticated_sender logging option, adding to log field "A". 17. New expansion variables $router_name and $transport_name. Useful - particularly for debug_print as -bt commandline option does not + particularly for debug_print as -bt command-line option does not require privilege whereas -d does. 18. If built with EXPERIMENTAL_PRDR, per-recipient data responses per a