X-Git-Url: https://git.exim.org/exim.git/blobdiff_plain/a5f239e4959d4df6a4a341d8855e14d17399d671..2349d6c47c1922b661dcd2e3ce57fc34ade42230:/src/README.UPDATING?ds=sidebyside diff --git a/src/README.UPDATING b/src/README.UPDATING index b7406f43c..73b52e4a0 100644 --- a/src/README.UPDATING +++ b/src/README.UPDATING @@ -26,12 +26,89 @@ The rest of this document contains information about changes in 4.xx releases that might affect a running system. -Exim version 4.81 +Exim version 4.91 ----------------- - * New option gnutls_enable_pkcs11 defaults false; if you have GnuTLS 2.12.0 + * DANE and SPF have been promoted from Experimental to Supported status, thus + the options to enable them in Local/Makefile have been renamed. + See current src/EDITME for full details, including changes in dependencies, + but loosely: replace EXPERIMENTAL_SPF with SUPPORT_SPF and replace + EXPERIMENTAL_DANE with SUPPORT_DANE. + + * Ancient ClamAV stream support, long deprecated by ClamAV, has been removed; + if you were building with WITH_OLD_CLAMAV_STREAM enabled then your problems + have marginally increased. + + * A number of logging changes; if relying upon the previous DKIM additional + log-line, explicit log_selector configuration is needed to keep it. + + * Other incompatible changes in EXPERIMENTAL_* features, read NewStuff and + ChangeLog carefully if relying upon an experimental feature such as DMARC. + Note that this includes changes to SPF as it was promoted into Supported. + + +Exim version 4.89 +----------------- + + * SMTP CHUNKING in Exim 4.88 did not ensure that received mails had a final + newline; attempts to deliver such messages onwards to non-chunking hosts + would probably hang, as Exim does not insert the newline before a ".". + In 4.89, the newline is added upon receipt. For already-received messages + in your queue, try util/chunking_fixqueue_finalnewlines.pl + to walk the queue, fixing any affected messages. Note that because a + delivery attempt will be hanging, attempts to lock the messages for fixing + them will stall; stopping all queue-runners temporarily is recommended. + + * OpenSSL: oldest supported release series is now 1.0.2, which is the oldest + supported by the OpenSSL project. If you can build Exim with an older + release series, congratulations. If you can't, then upgrade. + The file doc/openssl.txt contains instructions for installing a current + OpenSSL outside the system library paths and building Exim to use it. + + * FreeBSD: we now always use the system iconv in libc, as all versions of + FreeBSD supported by the FreeBSD project provide this functionality. + + +Exim version 4.88 +----------------- + + * The "demime" ACL condition, deprecated for the past 10 years, has + now been removed. + + * Old GnuTLS configuration options "gnutls_require_kx", "gnutls_require_mac", + and "gnutls_require_protocols" have now been removed. (Inoperative from + 4.80, per below; logging warnings since 4.83, again per below). + + +Exim version 4.83 +----------------- + + * SPF condition results renamed "permerror" and "temperror". The old + names are still accepted for back-compatability, for this release. + + * TLS details are now logged on rejects, subject to log selectors. + + * Items in headers_remove lists must now have any embedded list-separators + doubled. + + * Attempted use of the deprecated options "gnutls_require_kx" et. al. + now result in logged warning. + + +Exim version 4.82 +----------------- + + * New option gnutls_allow_auto_pkcs11 defaults false; if you have GnuTLS 2.12.0 or later and do want PKCS11 modules to be autoloaded, then set this option. + * A per-transport wait- database is no longer updated if the transport + sets "connection_max_messages" to 1, as it can not be used and causes + unnecessary serialisation and load. External tools tracking the state of + Exim by the hints databases may need modification to take this into account. + + * The av_scanner option can now accept multiple clamd TCP targets, all other + setting limitations remain. + Exim version 4.80 ----------------- @@ -119,7 +196,7 @@ Exim version 4.80 is instead given to gnutls_priority_init(3), which expects a priority string; this behaviour is much closer to the OpenSSL behaviour. See: - http://www.gnu.org/software/gnutls/manual/html_node/Priority-Strings.html + http://www.gnutls.org/manual/html_node/Priority-Strings.html for fuller documentation of the strings parsed. The three gnutls_require_* options are still parsed by Exim and, for this release, silently ignored. @@ -507,7 +584,7 @@ Version 4.23 3. Version 4.23 saves the contents of the ACL variables with the message, so that they can be used later. If one of these variables contains a newline, there will be a newline character in the spool that will not be interpreted - correctely by a previous version of Exim. (Exim ignores keyed spool file + correctly by a previous version of Exim. (Exim ignores keyed spool file items that it doesn't understand - precisely for this kind of problem - but it expects them all to be on one line.)