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Percona Server for MongoDB 4.4.18-18 (2022-12-19)

Release date December 19, 2022
Installation Installing Percona Server for MongoDB

Percona Server for MongoDB 4.4.18-18 is a source available, highly-scalable database that is a fully-compatible, drop-in replacement for MongoDB 4.4.18 Community Edition enhanced with enterprise-grade features. It supports MongoDB 4.4.18 protocols and drivers.

Release Highlights

The bug fixes, provided by MongoDB and included in Percona Server for MongoDB, are the following:

  • SERVER-66289 - Fixed the issue with how the server handles batches of writes when running $out with secondary read preference by updating write size estimation logic in DocumentSourceWriter
  • SERVER-61185 - Improved the performance of inserts into unique indexes
  • SERVER-68115 - Prevented dropping empty path component from elemMatch path during index selection
  • SERVER-50454 - Avoided sending the “keyValue” field to drivers on duplicate key error
  • SERVER-69443 - Disallowed the use of the allowSpeculativeMajorityReads flag for the find command in transactions


  • PSMDB-1181 Add backup cursor parameters to cursor’s metadata

Bugs Fixed

  • PSMDB-1177 Fixed incremental backup failure via $backupCursor for PSMDB 4.2/4.4

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