+
+Exim version 4.77
+-----------------
+
+ * GnuTLS will now attempt to use TLS 1.2 and TLS 1.1 before TLS 1.0 and SSL3,
+ if supported by your GnuTLS library. Use the existing
+ "gnutls_require_protocols" option to downgrade this if that will be a
+ problem. Prior to this release, supported values were "TLS1" and "SSL3",
+ so you should be able to update configuration prior to update.
+
+ * The match_<type>{string1}{string2} expansion conditions no longer subject
+ string2 to string expansion, unless Exim was built with the new
+ "EXPAND_LISTMATCH_RHS" option. Too many people have inadvertently created
+ insecure configurations that way. If you need the functionality and turn on
+ that build option, please let the developers know, and know why, so we can
+ try to provide a safer mechanism for you.
+
+
+Exim version 4.74
+-----------------
+
+ * The integrated support for dynamically loadable lookup modules has an ABI
+ change from the modules supported by some OS vendors through an unofficial
+ patch. Don't try to mix & match.
+
+ * Some parts of the build system are now beginning to assume that the host
+ environment is POSIX. If you're building on a system where POSIX tools are
+ not the default, you might have an easier time if you switch to the POSIX
+ tools. Feel free to report non-POSIX issues as a request for a feature
+ enhancement, but if the POSIX variants are available then the fix will
+ probably just involve some coercion. See the README instructions for
+ building on such hosts.
+
+
+Exim version 4.73
+-----------------
+
+ * The Exim run-time user can no longer be root; this was always
+ strongly discouraged, but is now prohibited both at build and
+ run-time. If you need Exim to run routinely as root, you'll need to
+ patch the source and accept the risk. Here be dragons.
+
+ * Exim will no longer accept a configuration file owned by the Exim
+ run-time user, unless that account is explicitly the value in
+ CONFIGURE_OWNER, which we discourage. Exim now checks to ensure that
+ files are not writable by other accounts.
+
+ * The ALT_CONFIG_ROOT_ONLY build option is no longer optional and is forced
+ on; the Exim user can, by default, no longer use -C/-D and retain privilege.
+ Two new build options mitigate this.
+
+ * TRUSTED_CONFIG_LIST defines a file containing a whitelist of config
+ files that are trusted to be selected by the Exim user; one per line.
+ This is the recommended approach going forward.
+
+ * WHITELIST_D_MACROS defines a colon-separated list of macro names which
+ the Exim run-time user may safely pass without dropping privileges.
+ Because changes to this involve a recompile, this is not the recommended
+ approach but may ease transition. The values of the macros, when
+ overridden, are constrained to match this regex: ^[A-Za-z0-9_/.-]*$
+
+ * The system_filter_user option now defaults to the Exim run-time user,
+ rather than root. You can still set it explicitly to root and this
+ can be done with prior versions too, letting you roll versions
+ without needing to change this configuration option.
+
+ * ClamAV must be at least version 0.95 unless WITH_OLD_CLAMAV_STREAM is
+ defined at build time.
+
+
git://git.exim.org / users / jgh / exim.git / blobdiff