# Percona Server for MongoDB 6.0.3-2 (2022-12-07)

| Release date | December 7, 2022|
|------------- | ---------------|
| **Installation** | [Installing Percona Backup for MongoDB](../install/index.md) |


Percona Server for MongoDB 6.0.3-2 is an enhanced, source-available, and highly-scalable database that is a
fully-compatible, drop-in replacement for [MongoDB 6.0.3 Community edition](https://www.mongodb.com/docs/manual/release-notes/6.0/#6.0.3---nov-21--2022). 

Percona Server for MongoDB 6.0.3-2 fully supports MongoDB 6.0 protocols and drivers and does not require any code modifications.

!!! warning

    We don't recommend this version for production use due to the issue with routing sharding time series collections [SERVER-80203](https://jira.mongodb.org/browse/SERVER-80203) which could result in metadata inconsistency. The routing issue is observed when documents have the shard key containing the embedded object composed of multiple fields. 

    The issue affects time series sharded collections starting in MongoDB version 5.0.6 through versions 5.0.21, 6.0.11 and 7.0.2. It is fixed upstream in versions 5.0.22, 6.0.12 and 7.0.4 and included in Percona Server for MongoDB 5.0.22-19, 6.0.12-9 and 7.0.4-2.

    If you are using time series collections, upgrade to the fixed version of MongoDB / Percona Server for MongoDB as soon as possible and follow closely the upstream recommendations outlined in [SERVER-80203](https://jira.mongodb.org/browse/SERVER-80203) for remediation steps.
    
## Release Highlights

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

* [SERVER-66289](https://jira.mongodb.org/browse/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-68371](https://jira.mongodb.org/browse/SERVER-68371) - Allowed search queries to pass through query analysis when Client-Side Field Level Encryption is enabled for the MongoClient
* [SERVER-68115](https://jira.mongodb.org/browse/SERVER-68115) - Prevented dropping empty path component from `elemMatch` path during index selection
* [SERVER-68394](https://jira.mongodb.org/browse/SERVER-68394) - Prevented yielding strong locks upon startup recovery when ``_id`` index is missing

 
Find the full list of new features and improvements in [MongoDB 6.0.3 Community edition release notes](https://www.mongodb.com/docs/manual/release-notes/6.0/#6.0.3---nov-21--2022).



## Improvements


* [PSMDB-1181](https://jira.percona.com/browse/PSMDB-1181): Add backup cursor parameters to cursor's metadata
  

## Bugs Fixed

* [PSMDB-1175](https://jira.percona.com/browse/PSMDB-1175): Fixed Percona Server for MongoDB behavior when calling ``$backupCursor`` with ``disableIncrementalBackup`` option