# Percona Monitoring and Management 2.0.1

<table class="docutils field-list" frame="void" rules="none">
  <colgroup>
    <col class="field-name">
    <col class="field-body">
  </colgroup>
  <tbody valign="top">
    <tr class="field-odd field">
      <th class="field-name">Date:</th>
      <td class="field-body">October 9, 2019</td>
    </tr>
  </tbody>
</table>

Percona Monitoring and Management (PMM) is a free and open-source platform for managing and monitoring MySQL, MongoDB, and PostgreSQL performance. You can run PMM in your own environment for maximum security and reliability. It provides thorough time-based analysis for MySQL, MongoDB, and PostgreSQL servers to ensure that your data works as efficiently as possible.

For install instructions, see [Installing Percona Monitoring and Management](../setting-up/index.md).

!!! caution alert alert-warning "Caution"
    PMM 2 is designed to be used as a new installation — please don’t try to upgrade your existing PMM 1 environment.

## Improvements

- [PMM-4779](https://jira.percona.com/browse/PMM-4779): Securely share dashboards with Percona
- [PMM-4735](https://jira.percona.com/browse/PMM-4735): Keep one old slowlog file after rotation
- [PMM-4724](https://jira.percona.com/browse/PMM-4724): Alt+click on check updates button enables force-update
- [PMM-4444](https://jira.percona.com/browse/PMM-4444): Return “what’s new” URL with the information extracted from the pmm-update package change   log

## Fixed bugs

- [PMM-4758](https://jira.percona.com/browse/PMM-4758): Remove Inventory rows from dashboards
- [PMM-4757](https://jira.percona.com/browse/PMM-4757): `qan_mysql_perfschema_agent` failed querying `events_statements_summary_by_digest` due to data types conversion
- [PMM-4755](https://jira.percona.com/browse/PMM-4755): Fixed a typo in the InnoDB AHI Miss Ratio formula
- [PMM-4749](https://jira.percona.com/browse/PMM-4749): Navigation from Dashboards to QAN when some Node or Service was selected now applies filtering by them in QAN
- [PMM-4742](https://jira.percona.com/browse/PMM-4742): General information links were updated to go to PMM 2 related pages
- [PMM-4739](https://jira.percona.com/browse/PMM-4739): Remove request instances list
- [PMM-4734](https://jira.percona.com/browse/PMM-4734): A fix was made for the collecting `node_name` formula at MySQL Replication Summary dashboard
- [PMM-4729](https://jira.percona.com/browse/PMM-4729): Fixes were made for formulas on MySQL Instances Overview
- [PMM-4726](https://jira.percona.com/browse/PMM-4726): Links to services in MongoDB singlestats didn’t show Node name
- [PMM-4720](https://jira.percona.com/browse/PMM-4720): `machine_id` could contain trailing `\\n`
- [PMM-4640](https://jira.percona.com/browse/PMM-4640): It was not possible to add MongoDB remotely if password contained a `#` symbol

Help us improve our software quality by reporting any Percona Monitoring and Management bugs you encounter using our [bug tracking system](https://jira.percona.com/secure/Dashboard.jspa).