Cyrus IMAP 3.13.3 Tag Notes

Unavailable for download as this is a development branch only.

Access is via git.

Warning

This should be considered for testing purposes and bleeding-edge features only. We will try to tag these snapshots at coherent development points, but there will generally be large breaking changes occurring between releases in this series.

Major changes since the 3.12 series

  • The annotator is now called only on items added to email-type mailboxes.

  • ctl_conversationsdb now has -U for version upgrades.

  • lmtpd now provides a capability called TRACE and a new TRACE command for setting an interal trace-id, which will be logged.

  • The admins_get_internal_seen imapd.conf(5) option has been added. If set, the admin users will always get and set the same \Seen flags as the mailbox owner.

  • master(8) will refuse to start if multiple partitions appear to be identical or overlap. (Issue #5573:)

  • Cyrus syslogs are in the process of being converted to logfmt, a structured logging format. So far, this affects primarily the login logs and auditlog.

  • The backupcyrusd protocol daemon has been added to facilitate rolling backups.

  • The expire_by_savedate and expire_keep_flagged imapd.conf(5) options have been added to control the behavior of cyr_expire.

  • Time zone data is no longer included in iTIP messages.

  • The IMAP PREVIEW extension will now only be advertised if the jmap_preview_annot imapd.conf(5) option is set and begins with /shared/.

  • Support for the IMAP UIDBATCHES extension has been added.

  • cyrus.conf can now schedule EVENTS with cron-like syntax.

  • The new sieve_mdn_original_recipient_header imapd.conf(5) option allows an install to get the original recipient from a header other than Original-Recipient.

  • The new sieve_mdn_private imapd.conf(5) option helps prevent leaking usernames.

  • A new database backend called twom has been added.

  • Adds support for the Sieve 'vnd.cyrus.redirect-multiple' extension which allows the 'redirect' action to accept a stringlist of email addresses, in addition to the standard single string. Cyrus will use a single SMTP transaction, providing each address as a RCPT TO and stop script processing when any response is an error.

  • The 'sieve_extensions' option now accepts the value 'vnd.cyrus.redirect-multiple' to enable the extension in timsieved.

  • Cyrus now requires libical >= 4.0.0, or a current development snapshot.

  • Cyrus now requires libxapian >= 2.0.0, or a recent 1.5.x bleeding edge snapshot.

  • JMAP methods now use perfect hashes (gperf) for increased performance.

Updates to default configuration

  • OpenSSL version 3.0 or greater is now required for all builds.

Removed features

  • The undocumented XSTATS metrics system has been removed.

  • The undocumented XKILLMY command and its associated SIGUSR2 handler have been removed.

  • lipcap support has been removed.

  • The tls_server_dhparam option has been deprecated.

  • The experimental zeroskip database backend has been removed.

  • Support for the obscure "objectstore" feature has been removed.

  • The long deprecated installsieve program has been removed. Please use sieveshell instead.

  • The following options are now deprecated:

  • caringo_hostname

  • caringo_port

  • object_storage_dummy_spool

  • object_storage_enabled

  • openio_account

  • openio_autocreate

  • openio_namespace

  • openio_proxy_timeout

  • openio_rawx_timeout

  • openio_verbosity

Security fixes

  • None yet!

Significant bugfixes

  • lmtpd(8) will no longer reset the session id after LHLO.

  • implicit_owner_rights are now respected on HTTP-based protocols, like JMAP.