New stuff we've added since 4.95:
- A new ACL condition: seen. Records/tests a timestamp against a key.
- A variant of the "mask" expansion operator to give normalised IPv6.
- UTC output option for exim_dumpdb, exim_fixdb.
- An event for failing TLS connects to the daemon.
- The ACL "debug" control gains options "stop", "pretrigger" and "trigger".
- Query-style lookups are now checked for quoting, if the query string is
built using untrusted data ("tainted"). For now lack of quoting is merely
logged; a future release will upgrade this to an error.
- The expansion conditions match_<list-type> and inlist now set $value for
the expansion of the "true" result of the ${if}. With a static list, this
can be used for de-tainting.
Notable removals since 4.95:
- the "allow_insecure_tainted_data" main config option and the
"taint" log_selector. These were deprecated in the 4.95 release.
