X-Git-Url: https://git.exim.org/users/jgh/exim.git/blobdiff_plain/ec4b68e5d820109e5954329013a911d4032bc4dc..0eb9153b250c9569733efaf67e4fd1a3588faa5e:/doc/doc-txt/NewStuff diff --git a/doc/doc-txt/NewStuff b/doc/doc-txt/NewStuff index aae58c631..1b7ad35dd 100644 --- a/doc/doc-txt/NewStuff +++ b/doc/doc-txt/NewStuff @@ -6,7 +6,62 @@ 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 the documentation is updated, this file is reduced to a short list. -Version 4.81 +Version 4.84 +------------ + + +Version 4.83 +------------ + + 1. If built with the EXPERIMENTAL_PROXY feature enabled, Exim can be + configured to expect an initial header from a proxy that will make the + actual external source IP:host be used in exim instead of the IP of the + proxy that is connecting to it. + + 2. New verify option header_names_ascii, which will check to make sure + there are no non-ASCII characters in header names. Exim itself handles + those non-ASCII characters, but downstream apps may not, so Exim can + detect and reject if those characters are present. + + 3. New expansion operator ${utf8clean:string} to replace malformed UTF8 + codepoints with valid ones. + + 4. New malware type "sock". Talks over a Unix or TCP socket, sending one + command line and matching a regex against the return data for trigger + and a second regex to extract malware_name. The mail spoofile name can + be included in the command line. + + 5. The smtp transport now supports options "tls_verify_hosts" and + "tls_try_verify_hosts". If either is set the certificate verification + is split from the encryption operation. The default remains that a failed + verification cancels the encryption. + + 6. New SERVERS override of default ldap server list. In the ACLs, an ldap + lookup can now set a list of servers to use that is different from the + default list. + + 7. New command-line option -C for exiqgrep to specify alternate exim.conf + file when searching the queue. + + 8. OCSP now supports GnuTLS also, if you have version 3.1.3 or later of that. + + 9. Support for DNSSEC on outbound connections. + +10. New variables "tls_(in,out)_(our,peer)cert" and expansion item + "certextract" to extract fields from them. Hash operators md5 and sha1 + work over them for generating fingerprints, and a new sha256 operator + for them added. + +11. PRDR is now supported dy default. + +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 + DSN features per RFC 3461. + + +Version 4.82 ------------ 1. New command-line option -bI:sieve will list all supported sieve extensions @@ -32,10 +87,11 @@ Version 4.81 Unless you really know what you are doing, leave it alone. 4. If not built with DISABLE_DNSSEC, Exim now has the main option - dns_use_dnssec; if set to 1 then Exim will initialise the resolver library + dns_dnssec_ok; if set to 1 then Exim will initialise the resolver library to send the DO flag to your recursive resolver. If you have a recursive resolver, which can set the Authenticated Data (AD) flag in results, Exim - can now detect this. + can now detect this. Exim does not perform validation itself, instead + relying upon a trusted path to the resolver. Current status: work-in-progress; $sender_host_dnssec variable added. @@ -70,10 +126,10 @@ Version 4.81 system not your own. The Recieved-by: header on items delivered by cutthrough is generated - early in of reception rather than at the end; this will affect any timestamp + 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 "=>". - + To support the feature, verify-callout connections can now use ESMTP and TLS. The usual smtp transport options are honoured, plus a (new, default everything) hosts_verify_avoid_tls. @@ -82,7 +138,88 @@ Version 4.81 for specific access to the information for each connection. The old names are present for now but deprecated. - Not yet supported: IGNOREQUOTA, SIZE, PIPELINING, AUTH. + Not yet supported: IGNOREQUOTA, SIZE, PIPELINING. + + 8. New expansion operators ${listnamed:name} to get the content of a named list + and ${listcount:string} to count the items in a list. + + 9. New global option "gnutls_allow_auto_pkcs11", defaults false. The GnuTLS + rewrite in 4.80 combines with GnuTLS 2.12.0 or later, to autoload PKCS11 + modules. For some situations this is desirable, but we expect admin in + those situations to know they want the feature. More commonly, it means + that GUI user modules get loaded and are broken by the setuid Exim being + unable to access files specified in environment variables and passed + through, thus breakage. So we explicitly inhibit the PKCS11 initialisation + unless this new option is set. + + Some older OS's with earlier versions of GnuTLS might not have pkcs11 ability, + so have also added a build option which can be used to build Exim with GnuTLS + but without trying to use any kind of PKCS11 support. Uncomment this in the + Local/Makefile: + + AVOID_GNUTLS_PKCS11=yes + +10. The "acl = name" condition on an ACL now supports optional arguments. + New expansion item "${acl {name}{arg}...}" and expansion condition + "acl {{name}{arg}...}" are added. In all cases up to nine arguments + can be used, appearing in $acl_arg1 to $acl_arg9 for the called ACL. + Variable $acl_narg contains the number of arguments. If the ACL sets + a "message =" value this becomes the result of the expansion item, + or the value of $value for the expansion condition. If the ACL returns + accept the expansion condition is true; if reject, false. A defer + return results in a forced fail. + +11. Routers and transports can now have multiple headers_add and headers_remove + option lines. The concatenated list is used. + +12. New ACL modifier "remove_header" can remove headers before message gets + handled by routers/transports. + +13. New dnsdb lookup pseudo-type "a+". A sequence of "a6" (if configured), + "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). + +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 + require privilege whereas -d does. + +18. If built with EXPERIMENTAL_PRDR, per-recipient data responses per a + proposed extension to SMTP from Eric Hall. + +19. The pipe transport has gained the force_command option, to allow + decorating commands from user .forward pipe aliases with prefix + wrappers, for instance. + +20. Callout connections can now AUTH; the same controls as normal delivery + connections apply. + +21. Support for DMARC, using opendmarc libs, can be enabled. It adds new + options: dmarc_forensic_sender, dmarc_history_file, and dmarc_tld_file. + It adds new expansion variables $dmarc_ar_header, $dmarc_status, + $dmarc_status_text, and $dmarc_used_domain. It adds a new acl modifier + dmarc_status. It adds new control flags dmarc_disable_verify and + dmarc_enable_forensic. + +22. Add expansion variable $authenticated_fail_id, which is the username + 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 + UDP host and port. + +24. New ${hexquote:..string..} expansion operator converts non-printable + characters in the string to \xNN form. + +25. Experimental TPDA (Transport Post Delivery Action) function added. + Patch provided by Axel Rau. + +26. Experimental Redis lookup added. Patch provided by Warren Baker. Version 4.80 @@ -155,7 +292,7 @@ Version 4.80 gnutls_require_mac & gnutls_require_protocols are no longer supported. tls_require_ciphers is now parsed by gnutls_priority_init(3) as a priority string, documentation for which is at: - http://www.gnu.org/software/gnutls/manual/html_node/Priority-Strings.html + http://www.gnutls.org/manual/html_node/Priority-Strings.html SNI support has been added to Exim's GnuTLS integration too. @@ -331,13 +468,13 @@ Version 4.73 then henceforth you will have to maintain your own local patches to strip the safeties off. - 8. There is a new expansion operator, bool_lax{}. Where bool{} uses the ACL + 8. There is a new expansion condition, bool_lax{}. Where bool{} uses the ACL condition logic to determine truth/failure and will fail to expand many strings, bool_lax{} uses the router condition logic, where most strings do evaluate true. Note: bool{00} is false, bool_lax{00} is true. - 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