> For the complete documentation index, see [llms.txt](https://mariadb.com/docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://mariadb.com/docs/release-notes/connectors/node.js/3.x/3.1.0.md).

# Connector/Node.js 3.1.0 Release Notes

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<p align="center">The most recent release of <a href="/spaces/CjGYMsT2MVP4nd3IyW2L/pages/WmpaptiE3kKy2mNO6ps0">MariaDB Connector/Node.js</a> is: <a href="/pages/r2pMUZbAXRLBlqvRUjpX"><strong>3.5.3</strong></a></p>

<p align="center"><a href="https://mariadb.com/downloads/connectors/connectors-data-access/nodejs-connector" class="button primary">Download Connector/Node.js 3.5.3</a></p>
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[Download](https://mariadb.com/downloads/connectors/connectors-data-access/nodejs-connector) | [Release Notes](/docs/release-notes/connectors/node.js/3.x/3.1.0.md) | [Changelog](/docs/release-notes/connectors/node.js/changelogs/3.x/3.1.0.md) | [Connector/Node.js Overview](/docs/connectors/mariadb-connector-nodejs/mariadb-connector-node-js-guide.md)

**Release date:** 15 Feb 2023

MariaDB Connector/Node.js 3.1.0 is a [***Stable***](/docs/release-notes/community-server/about/release-criteria.md) ***(GA)*** release.

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**For an overview of MariaDB Connector/Node.js see the** [**About MariaDB Connector/Node.js**](/docs/connectors/mariadb-connector-nodejs/mariadb-connector-node-js-guide.md) **page**
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## Notable Changes

### Timezone handling

[CONJS-237](https://jira.mariadb.org/browse/CONJS-237)\
Connector now set session timezone, solving issue with [time function](/docs/server/reference/data-types/string-data-types/character-sets/internationalization-and-localization/time-zones.md#time-zone-effects-on-functions),\
removing needs of client side conversion.

This requires that when using timezone options, to have corresponding server TZ data filled.

### Performance

* [CONJS-230](https://jira.mariadb.org/browse/CONJS-230) better metadata parsing performance
* [CONJS-229](https://jira.mariadb.org/browse/CONJS-229) performance improvement when parsing lots of parameter
* [CONJS-238](https://jira.mariadb.org/browse/CONJS-238) faster execution for known length packet

see [here](https://github.com/mariadb-corporation/mariadb-connector-nodejs/blob/master/documentation/benchmarks) for updated result compared to other connectors

### Other changes

* [CONJS-225](https://jira.mariadb.org/browse/CONJS-225) Make result set's meta property non-enumerable
* [CONJS-235](https://jira.mariadb.org/browse/CONJS-235) Allow to pass TypeScript generic types without need of "as"

## Issues Fixed

* [CONJS-231](https://jira.mariadb.org/browse/CONJS-231) When executing batch with a parameter can be too long to fit in one mysql packet, parameter can have 4 byte missing
* [CONJS-236](https://jira.mariadb.org/browse/CONJS-236) datatype TIME wrong binary decoding when not having microseconds
* [CONJS-239](https://jira.mariadb.org/browse/CONJS-239) When using connection with callback, pre-commands (like `initSql`) might not always be executed first
* [CONJS-232](https://jira.mariadb.org/browse/CONJS-232) in case of a long query running, connection.destroy() will close connection, but might leave server still running query for some time
* [CONJS-240](https://jira.mariadb.org/browse/CONJS-240) adding a Prepare result wrapper to avoid multiple close issue with cache
* [CONJS-241](https://jira.mariadb.org/browse/CONJS-241) metaAsArray missing option in typescript description

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