dovecot-2.3.16

[Bruce Dubbs]

New point version.

[Tim Tassonis]

• Any unexpected exit() will now result in a core dump. This can

especially help notice problems when a Lua script causes exit(0).

• auth-worker process is now restarted when the number of auth requests reaches service auth-worker { service_count }. The default is still unlimited.

+ Event improvements: Added data_stack_grow event and http-client

category. See ​https://doc.dovecot.org/admin_manual/list_of_events/

+ oauth2: Support RFC 7628 openid-configuration element. This allows

clients to support OAUTH2 for any server, not just a few hardcoded servers like they do now. See openid_configuration_url setting in dovecot-oauth2.conf.ext.

+ mysql: Single statements are no longer enclosed with BEGIN/COMMIT. + dovecot-sysreport --core supports multiple core files now and does

not require specifying the binary path.

+ imapc: When imap_acl plugin is loaded and imapc_features=acl is used,

IMAP ACL commands are proxied to the remote server. See ​https://doc.dovecot.org/configuration_manual/mail_location/imapc/

+ dict-sql now supports the "UPSERT" syntax for SQLite and PostgreSQL. + imap: If IMAP client disconnects during a COPY command, the copying

is aborted, and changes are reverted. This may help to avoid many email duplicates if client disconnects during COPY and retries it after reconnecting.

• master process was using 100% CPU if service attempted to create more processes due to process_min_avail, but process_limit was already reached. v2.3.15 regression.
• Using attachment detection flags wrongly logged unnecessary "Failed to add attachment keywords" errors. v2.3.13 regression.
• IMAP QRESYNC: Expunging UID 1 mail resulted in broken VANISHED response, which could have confused IMAP clients. v2.3.13 regression.
• imap: STORE didn't send untagged replies for \Seen changes for (shared) mailboxes using INDEXPVT. v2.3.10 regression.
• rawlog_dir setting would not log input that was pipelined after authentication command.
• Fixed potential infinite looping with autoexpunging.
• Log event exporter: Truncate long fields to 1000 bytes
• LAYOUT=index: ACL inheritance didn't work when creating mailboxes
• Event filters: Unquoted '?' wildcard caused a crash at startup
• fs-metawrap: Fix to handling zero sized files
• imap-hibernate: Fixed potential crash at deinit.
• acl: dovecot-acl-list files were written for acl_ignore_namespaces
• program-client (used by Sieve extprograms, director_flush_socket) may have missed status response from UNIX and network sockets, resulting in unexpected failures.

[Tim Tassonis]

Fixed in commit e4a3fdbe82