X-Git-Url: https://git.exim.org/exim.git/blobdiff_plain/8271f864edaf7fb2db0eb3aaa0c4789f55125978..ce437b2e0dc12c342b1ac67d5435a893b800fd05:/doc/doc-txt/ChangeLog?ds=inline diff --git a/doc/doc-txt/ChangeLog b/doc/doc-txt/ChangeLog index 8e7749bba..874d725f3 100644 --- a/doc/doc-txt/ChangeLog +++ b/doc/doc-txt/ChangeLog @@ -2,14 +2,172 @@ This document describes *changes* to previous versions, that might affect Exim's operation, with an unchanged configuration file. For new options, and new features, see the NewStuff file next to this ChangeLog. -Since 4.95 ----------- +Exim version 4.97 +----------------- + +JH/01 The hosts_connection_nolog main option now also controls "no MAIL in + SMTP connection" log lines. + +JH/02 Option default value updates: + - queue_fast_ramp (main) true (was false) + - remote_max_parallel (main) 4 (was 2) + +JH/03 Cache static regex pattern compilations, for use by ACLs. + +JH/04 Bug 2903: avoid exit on an attempt to rewrite a malformed address. + Make the rewrite never match and keep the logging. Trust the + admin to be using verify=header-syntax (to actually reject the message). + + +Exim version 4.96 +----------------- JH/01 Move the wait-for-next-tick (needed for unique messmage IDs) from - after reception to before a subsequence reception. This should + after reception to before a subsequent reception. This should mean slightly faster delivery, and also confirmation of reception to senders. +JH/02 Move from using the pcre library to pcre2. The former is no longer + being developed or supported (by the original developer). + +JH/03 Constification work in the filters module required a major version + bump for the local-scan API. Specifically, the "headers_charset" + global which is visible via the API is now const and may therefore + not be modified by local-scan code. + +JH/04 Fix ClamAV TCP use under FreeBSD. Previously the OS-specific shim for + sendfile() didi not account for the way the ClamAV driver code called it. + +JH/05 Bug 2819: speed up command-line messages being read in. Previously a + time check was being done for every character; replace that with one + per buffer. + +JH/06 Bug 2815: Fix ALPN sent by server under OpenSSL. Previously the string + sent was prefixed with a length byte. + +JH/07 Change the SMTP feature name for pipelining connect to be compliant with + RFC 5321. Previously Dovecot (at least) would log errors during + submission. + +JH/08 Remove stripping of the binaries from the FreeBSD build. This was added + in 4.61 without a reason logged. Binaries will be bigger, which might + matter on diskspace-constrained systems, but debug is easier. + +JH/09 Fix macro-definition during "-be" expansion testing. The move to + write-protected store for macros had not accounted for these runtime + additions; fix by removing this protection for "-be" mode. + +JH/10 Convert all uses of select() to poll(). FreeBSD 12.2 was found to be + handing out large-numbered file descriptors, violating the usual Unix + assumption (and required by Posix) that the lowest possible number will be + allocated by the kernel when a new one is needed. In the daemon, and any + child procesees, values higher than 1024 (being bigger than FD_SETSIZE) + are not useable for FD_SET() [and hence select()] and overwrite the stack. + Assorted crashes happen. + +JH/11 Fix use of $sender_host_name in daemon process. When used in certain + main-section options or in a connect ACL, the value from the first ever + connection was never replaced for subsequent connections. Found by + Wakko Warner. + +JH/12 Bug 2838: Fix for i32lp64 hard-align platforms. Found for SPARC Linux, + though only once PCRE2 was introduced: the memory accounting used under + debug offset allocations by an int, giving a hard trap in early startup. + Change to using a size_t. Debug and fix by John Paul Adrian Glaubitz. + +JH/13 Bug 2845: Fix handling of tls_require_ciphers for OpenSSL when a value + with underbars is given. The write-protection of configuration introduced + in 4.95 trapped when normalisation was applied to an option not needing + expansion action. + +JH/14 Bug 1895: TLS: Deprecate RFC 5114 Diffie-Hellman parameters. + +JH/15 Fix a resource leak in *BSD. An off-by-one error resulted in the daemon + failing to close the certificates directory, every hour or any time it + was touched. + +JH/16 Debugging initiated by an ACL control now continues through into routing + and transport processes. Previously debugging stopped any time Exim + re-execs, or for processing a queued message. + +JH/17 The "expand" debug selector now gives more detail, specifically on the + result of expansion operators and items. + +JH/18 Bug 2751: Fix include_directory in redirect routers. Previously a + bad comparison between the option value and the name of the file to + be included was done, and a mismatch was wrongly identified. + 4.88 to 4.95 are affected. + +JH/19 Support for Berkeley DB versions 1 and 2 is withdrawn. + +JH/20 When built with NDBM for hints DB's check for nonexistence of a name + supplied as the db file-pair basename. Previously, if a directory + path was given, for example via the autoreply "once" option, the DB + file.pag and file.dir files would be created in that directory's + parent. + +JH/21 Remove the "allow_insecure_tainted_data" main config option and the + "taint" log_selector. These were previously deprecated. + +JH/22 Fix static address-list lookups to properly return the matched item. + Previously only the domain part was returned. + +JH/23 Bug 2864: FreeBSD: fix transport hang after 4xx/5xx response. Previously + the call into OpenSSL to send a TLS Close was being repeated; this + resulted in the library waiting for the peer's Close. If that was never + sent we waited forever. Fix by tracking send calls. + +JH/24 The ${run} expansion item now expands its command string elements after + splitting. Previously it was before; the new ordering makes handling + zero-length arguments simpler. The old ordering can be obtained by + appending a new option "preexpand", after a comma, to the "run". + +JH/25 Taint-check exec arguments for transport-initiated external processes. + Previously, tainted values could be used. This affects "pipe", "lmtp" and + "queryprogram" transport, transport-filter, and ETRN commands. + The ${run} expansion is also affected: in "preexpand" mode no part of + the command line may be tainted, in default mode the executable name + may not be tainted. + +JH/26 Fix CHUNKING on a continued-transport. Previously the usabliility of + the the facility was not passed across execs, and only the first message + passed over a connection could use BDAT; any further ones using DATA. + +JH/27 Support the PIPECONNECT facility in the smtp transport when the helo_data + uses $sending_ip_address and an interface is specified. + Previously any use of the local address in the EHLO name disabled + PIPECONNECT, the common case being to use the rDNS of it. + +JH/28 OpenSSL: fix transport-required OCSP stapling verification under session + resumption. Previously verify failed because no certificate status is + passed on the wire for the restarted session. Fix by using the recorded + ocsp status of the stored session for the new connection. + +JH/29 TLS resumption: the key for session lookup in the client now includes + more info that a server could potentially use in configuring a TLS + session, avoiding oferring mismatching sessions to such a server. + Previously only the server IP was used. + +JH/30 Fix string_copyn() for limit greater than actual string length. + Previously the copied amount was the limit, which could result in a + overlapping memcpy for newly allocated destination soon after a + source string shorter than the limit. Found/investigated by KM. + +JH/31 Bug 2886: GnuTLS: Do not free the cached creds on transport connection + close; it may be needed for a subsequent connection. This caused a + SEGV on primary-MX defer. Found/investigated by Gedalya & Andreas. + +JH/32 Fix CHUNKING for a second message on a connection when the first was + rejected. Previously we did not reset the chunking-offered state, and + erroneously rejected the BDAT command. Investigation help from + Jesse Hathaway. + +JH/33 Fis ${srs_encode ...} to handle an empty sender address, now returning + an empty address. Previously the expansion returned an error. + +HS/01 Bug 2855: Handle a v4mapped sender address given us by a frontending + proxy. Previously these were misparsed, leading to paniclog entries. + Exim version 4.95 ----------------- @@ -335,6 +493,15 @@ JH/57 Fix control=fakreject for a custom message containing tainted data. JH/58 GnuTLS: Fix certextract expansion. If a second modifier after a tag modifier was given, a loop resulted. +JH/59 DKIM: Fix small-message verification under TLS with chunking. If a + pipelined SMTP command followed the BDAT LAST then it would be + incorrectly treated as part of the message body, causing a verification + fail. + +JH/60 Bug 2805: Fix logging of domain-literals in Message_ID: headers. They + require looser validation rules than those for 821-level addresses, + which only permit IP addresses. + Exim version 4.94 ----------------- @@ -759,6 +926,10 @@ JH/47 ARC: fix crash in signing, triggered when a configuration error failed to do ARC verification. The Authentication-Results: header line added by the configuration then had no ARC item. +JH/48 Bug 2784: fix shutdown=no in the ${readsocket) expansion item. Previously + an incorrect mode was used for reading the result, resulting in it being + ignored. + Exim version 4.92 -----------------