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| -rw-r--r-- | RELEASE_NOTES-3.2 | 180 |
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diff --git a/RELEASE_NOTES-3.2 b/RELEASE_NOTES-3.2 new file mode 100644 index 0000000..876d4b7 --- /dev/null +++ b/RELEASE_NOTES-3.2 @@ -0,0 +1,180 @@ +This is the Postfix 3.2 (stable) release. + +The stable Postfix release is called postfix-3.2.x where 3=major +release number, 2=minor release number, x=patchlevel. The stable +release never changes except for patches that address bugs or +emergencies. Patches change the patchlevel and the release date. + +New features are developed in snapshot releases. These are called +postfix-3.3-yyyymmdd where yyyymmdd is the release date (yyyy=year, +mm=month, dd=day). Patches are never issued for snapshot releases; +instead, a new snapshot is released. + +The mail_release_date configuration parameter (format: yyyymmdd) +specifies the release date of a stable release or snapshot release. + +If you upgrade from Postfix 3.0 or earlier, read RELEASE_NOTES-3.1 +before proceeding. + +Invisible changes +----------------- + +In addition to the visible changes described below, there is an +ongoing overhaul of low-level code. With each change come updated +tests to ensure that future changes will not 'break' compatibility +with past behavior. + +Major changes - address mapping +------------------------------- + +[Feature 20170128] Postfix 3.2 fixes the handling of address +extensions with email addresses that contain spaces. For example, +the virtual_alias_maps, canonical_maps, and smtp_generic_maps +features now correctly propagate an address extension from "aa +bb+ext"@example.com to "cc dd+ext"@other.example, instead of +producing broken output. + +Major changes - header/body_checks +---------------------------------- + +[Feature 20161008] "PASS" and "STRIP" actions in header/body_checks. +"STRIP" is similar to "IGNORE" but also logs the action, and "PASS" +disables header, body, and Milter inspection for the remainder of +the message content. Contributed by Hobbit. + +Major changes - log analysis +---------------------------- + +[Feature 20160330] The collate.pl script by Viktor Dukhovni for +grouping Postfix logfile records into "sessions" based on queue ID +and process ID information. It's in the auxiliary/collate directory +of the Postfix source tree. + +Major changes - maps support +---------------------------- + +[Feature 20160527] Postfix 3.2 cidr tables support if/endif and +negation (by prepending ! to a pattern), just like regexp and pcre +tables. The primarily purpose is to improve readability of complex +tables. See the cidr_table(5) manpage for syntax details. + +[Incompat 20160925] In the Postfix MySQL database client, the default +option_group value has changed to "client", to enable reading of +"client" option group settings in the MySQL options file. This fixes +a "not found" problem with Postfix queries that contain UTF8-encoded +non-ASCII text. Specify an empty option_group value (option_group +=) to get backwards-compatible behavior. + +[Feature 20161217] Stored-procedure support for MySQL databases. +Contributed by John Fawcett. See mysql_table(5) for instructions. + +[Feature 20170128] The postmap command, and the inline: and texthash: +maps now support spaces in left-hand field of the lookup table +"source text". Use double quotes (") around a left-hand field that +contains spaces, and use backslash (\) to protect embedded quotes +in a left-hand field. There is no change in the processing of the +right-hand field. + +Major changes - milter support +------------------------------ + +[Feature 20160611] The Postfix SMTP server local IP address and +port are available in the policy delegation protocol (attribute +names: server_address, server_port), in the Milter protocol (macro +names: {daemon_addr}, {daemon_port}), and in the XCLIENT protocol +(attribute names: DESTADDR, DESTPORT). + +[Feature 20161024] smtpd_milter_maps support for per-client Milter +configuration that overrides smtpd_milters, and that has the same +syntax. A lookup result of "DISABLE" turns off Milter support. See +MILTER_README.html for details. + +Major changes - policy delegation +--------------------------------- + +[Feature 20160611] The Postfix SMTP server local IP address and +port are available in the policy delegation protocol (attribute +names: server_address, server_port), in the Milter protocol (macro +names: {daemon_addr}, {daemon_port}), and in the XCLIENT protocol +(attribute names: DESTADDR, DESTPORT). + +Major changes - postqueue +------------------------- + +[Incompat 20170129] The postqueue command no longer forces all +message arrival times to be reported in UTC. To get the old behavior, +set TZ=UTC in main.cf:import_environment (this override is not +recommended, as it affects all Postfix utities and daemons). + +Major changes - safety +---------------------- + +[Incompat 20161227] For safety reasons, the sendmail -C option must +specify an authorized directory: the default configuration directory, +a directory that is listed in the default main.cf file with +alternate_config_directories or multi_instance_directories, or the +command must be invoked with root privileges (UID 0 and EUID 0). +This mitigates a recurring problem with the PHP mail() function. + +Major changes - sasl +-------------------- + +[Feature 20160625] The Postfix SMTP server now passes remote client +and local server network address and port information to the Cyrus +SASL library. Build with ``make makefiles "CCARGS=$CCARGS +-DNO_IP_CYRUS_SASL_AUTH"'' for backwards compatibility. + +Major changes - smtputf8 +------------------------ + +[Feature 20161103] Postfix 3.2 disables the 'transitional' compatibility +between the IDNA2003 and IDNA2008 standards for internationalized +domain names (domain names beyond the limits of US-ASCII). + +This change makes Postfix behavior consistent with contemporary web +browsers. It affects the handling of some corner cases such as +German sz and Greek zeta. See http://unicode.org/cldr/utility/idna.jsp +for more examples. + +Specify "enable_idna2003_compatibility = yes" to restore historical +behavior (but keep in mind that the rest of the world may not make +that same choice). + +Major changes - tls +------------------- + +[Feature 20160828] Fixes for deprecated OpenSSL 1.1.0 API features, +so that Postfix will build without depending on backwards-compatibility +support. + +[Incompat 20161204] Postfix 3.2 removes tentative features that +were implemented before the DANE spec was finalized: + +- Support for certificate usage PKIX-EE(1), + +- The ability to disable digest agility (Postfix now behaves as if + "tls_dane_digest_agility = on"), and + +- The ability to disable support for "TLSA 2 [01] [12]" records + that specify the digest of a trust anchor (Postfix now behaves + as if "tls_dane_trust_anchor_digest_enable = yes). + +[Feature 20161217] Postfix 3.2 enables elliptic curve negotiation +with OpenSSL >= 1.0.2. This changes the default smtpd_tls_eecdh_grade +setting to "auto", and introduces a new parameter tls_eecdh_auto_curves +with the names of curves that may be negotiated. + +The default tls_eecdh_auto_curves setting is determined at compile +time, and depends on the Postfix and OpenSSL versions. At runtime, +Postfix will skip curve names that aren't supported by the OpenSSL +library. + +Major changes - xclient +----------------------- + +[Feature 20160611] The Postfix SMTP server local IP address and +port are available in the policy delegation protocol (attribute +names: server_address, server_port), in the Milter protocol (macro +names: {daemon_addr}, {daemon_port}), and in the XCLIENT protocol +(attribute names: DESTADDR, DESTPORT). + |