Make sure to read general information about upgrading first.
Stop Zabbix server to make sure that no new data is inserted into database.
If upgrading Zabbix proxy, stop proxy too.
It is known to be possible to upgrade the server only and have older, yet unupgraded proxies report data to a newer server (the proxies can't refresh their configuration though). This approach, however, is not recommended and not supported by Zabbix and choosing it is entirely at your own risk.
This is a very important step. Make sure that you have a backup of your database. It will help if the upgrade procedure fails (lack of disk space, power off, any unexpected problem).
Make a backup copy of Zabbix binaries, configuration files and the PHP file directory.
PHP files and Zabbix binaries:
To proceed with the update your current repository package has to be uninstalled.
Then install the new repository configuration package.
On Debian 9 run:
On Debian 8 run:
On Debian 7 run:
On Ubuntu 18.04 run:
On Ubuntu 16.04 run:
On Ubuntu 14.04 run:
Update the repository information.
To upgrade Zabbix components you may run something like:
If using PostgreSQL, substitute
pgsql in the command. If upgrading the proxy, substitute
proxy in the command.
See the upgrade notes for details on mandatory changes.
For new optional parameters, see the What's new section.
Start the updated Zabbix components.
After the upgrade you may need to clear web browser cookies and web browser cache for the Zabbix web interface to work properly.
It is possible to upgrade minor versions of 3.4.x (for example, from 3.4.1 to 3.4.3). It is easy.
To upgrade Zabbix minor version please run:
To upgrade Zabbix server minor version please run:
To upgrade Zabbix agent minor version please run: