PMM-11192 [DOC] PMM Client upgrade documentation for different distribution methods - Packages

docs/how-to/upgrade.md

@@ -47,7 +47,34 @@ If one is available, click the update button to update to the version indicated.
 
 ## Updating a PMM-Agent
 
-PMM-Agent can be updated from tarball:
+### Package Manager
+
+The most convenient and efficient way to manage the installation and updates of the PMM Agent is by leveraging your operating system's package manager. Percona provides the [percona-release](https://docs.percona.com/percona-software-repositories/installing.html) package, which helps you install Percona software, including the PMM Agent.```
+
+PMM Agent is available from the `tools` repository. To deploy a new version of the Agent, you have two options:
+- If you are using a package manager, you can install the latest version of the PMM Agent directly.
+- If you initially installed the PMM Agent from a tarball, you can replace the currently installed package with the latest version.
+
+For example, to install the latest version of the PMM Agent on Red Hat or its derivatives, you can use the following commands:
+```
+percona-release enable tools
+yum update pmm2-client
+```
+By running these commands, your existing agent configuration will be preserved during the update process.
+
+To deploy a specific version, you can check the available versions and then provide the full name of the package, for example:
+```
+yum --showduplicates search pmm2-client
+pmm2-client-2.36.0-6.el7.x86_64 : PMM-agent
+pmm2-client-2.37.0-6.el7.x86_64 : PMM-agent
+pmm2-client-2.37.1-6.el7.x86_64 : PMM-agent
+
+yum update pmm2-client-2.37.1-6.el7.x86_64
+```
+
+### Tarball
+
+PMM-Agent can also be updated from tarball:
 
  1. Download `tar.gz` with `pmm2-client`.
  2. Extract it.