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

Improvements¶

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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