Update phpredis to a newer version
The bundled phpredis version was released back in june of 2016. Currently (may 2020) the most recent version is 5.2.1. Please update this php module to improve compatibility and performance.
Manual guide can be found here:
Thank you for your input. We will consider this functionality in upcoming releases if it will be popular. Everyone, please continue voting for this feature if you consider it important.
Oliver Zieschang commented
The phpredis version was updated.