X-Git-Url: https://git.exim.org/exim.git/blobdiff_plain/e498ab40197936833f696439e78c5cb08e5180cb..33a1a1bf0dc7d8202f09fda79e5a496645bbeb3b:/doc/doc-txt/NewStuff diff --git a/doc/doc-txt/NewStuff b/doc/doc-txt/NewStuff index 2a776b730..f7a38e623 100644 --- a/doc/doc-txt/NewStuff +++ b/doc/doc-txt/NewStuff @@ -3,9 +3,16 @@ 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 ------------ @@ -21,11 +28,50 @@ Version 4.88 N can be 224, 256 (default), 384, 512. With GnuTLS 3.5.0 or later, only. - 5. Facility for named queues: A commandline argument can specify + 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 ------------ @@ -53,7 +99,7 @@ Version 4.87 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 dafault value matches RFC + avoid oversize bodies in bounces. The default value matches RFC limits. 9. New $initial_cwd expansion variable. @@ -73,7 +119,7 @@ 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. @@ -101,7 +147,7 @@ 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. @@ -168,7 +214,7 @@ Version 4.83 12. OCSP stapling is now supported by default. 13. If built with the EXPERIMENTAL_DSN feature enabled, Exim will output - Delivery Status Notification messages in MIME format, and negociate + Delivery Status Notification messages in MIME format, and negotiate DSN features per RFC 3461. @@ -223,20 +269,20 @@ Version 4.82 ignored. 7. New cutthrough routing feature. Requested by a "control = cutthrough_delivery" - ACL modifier; works for single-recipient mails which are recieved on and + ACL modifier; works for single-recipient mails which are received on and deliverable via SMTP. Using the connection made for a recipient verify, if requested before the verify, or a new one made for the purpose while the inbound connection is still active. The bulk of the mail item is copied direct from the inbound socket to the outbound (as well as the spool file). When the source notifies the end of data, the data acceptance by the destination - is negociated before the acceptance is sent to the source. If the destination + is negotiated before the acceptance is sent to the source. If the destination does not accept the mail item, for example due to content-scanning, the item is not accepted from the source and therefore there is no need to generate a bounce mail. This is of benefit when providing a secondary-MX service. The downside is that delays are under the control of the ultimate destination system not your own. - The Recieved-by: header on items delivered by cutthrough is generated + The Received-by: header on items delivered by cutthrough is generated early in reception rather than at the end; this will affect any timestamp included. The log line showing delivery is recorded before that showing reception; it uses a new ">>" tag instead of "=>". @@ -297,7 +343,7 @@ Version 4.82 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 @@ -321,7 +367,7 @@ Version 4.82 provided to the authentication method which failed. It is available for use in subsequent ACL processing (typically quit or notquit ACLs). -23. New ACL modifer "udpsend" can construct a UDP packet to send to a given +23. New ACL modifier "udpsend" can construct a UDP packet to send to a given UDP host and port. 24. New ${hexquote:..string..} expansion operator converts non-printable