We are pleased to announce the release of Manticore Search 3.1.0. Downloads are available here and from the Manticore Github page. Docker image is available at Docker Hub.

New features

• Replication is now available for RealTime indexes and works in the same way as for percolate indexes.
• Now INSERT / REPLACE / DELETE and UPDATE statements can be used on replicated RT indexes. ALTER and ATTACH statements support will be added in future releases and OPTIMIZE only perform the optimization locally.
• Replication now supports multiple statement transactions, previously only single statement commits were available.
• Introduced a new morphology processor based on open-source ICU library. Currently only Chinese is supported. The Chinese ICU processor is replacing the non-open source RLP processor.

Improvements

• We made internal refactoring on waking up of threads responsible for different jobs (like flushing). The new changes should result in lower idle CPU usage.
• New directive ‘icu_data_dir’ is available for specifying the ICU files when ICU is manually compiled.
• Introduced LAST_INSERT_ID() function that returns the last modified document id in current session. Alternative, variable @@session.last_insert_id can also return the last modified document id.
• SHOW VARIABLES statement support LIKE 'pattern' clause.
• For percolate indexes, INSERT can now accept multiple stored query documents, before INSERT accepted only one stored query document per statement.
• Configuration directives that express time can accept string time expressions. For example rt_flush_period = 3600 can be rewritten as rt_flush_period = 60m or rt_flush_period = 1h.
• Doc and hit lists can be mlocked by access_doclists and access_hitlists directives using new ‘mlock’ value.
• Snippet paths are now jailed inside the scope of snippets_file_prefix even if paths are relative.

Removals

• Support for RLP processor dropped. All rlp_* configuration directives removed.
• UPDATE statements don’t support anymore updating the value of document IDs.

Fixes

A number of fixes are included in this release, to highlight a few:

• 58dcbb77 fixes #246 undefined sigmask in indexer
• 44757711 fixes hash of clusters lock in replication
• f0472223 fix defects in concat and group_concat

For a full report please consult the Release note.