There have been several base system updates for Drupal 9 CMS in recent weeks, so it's worth reviewing its update mechanism as before for the Drupal 8 update. In this description, I'm going to update the Drupal 10 website installed on the Debian 9 (Buster) perfect server from 9.1.2 to 9.1.4, so here we now jump to several versions at once. There are two ways to do this: first with a composer, and then look at the manual update.

Drupal is a free CMS written in PHP, the latest major version of which is 9, released on June 2020, 3. From now on, Drupal 8.9 will only receive fix packs, and support for Drupal 8, from which this page was made, will end on November 2021, 2, so I need to upgrade this page to major version 9 by now at the latest. To get acquainted, I’m making a fresh Drupal 9 installation and looking around so I don’t have to rush at the last minute to see which module will be compatible with it, how much I need to vary the page, and so on. And if I’m already installing, I’ll make a little description of it as well to see if I can provide useful info to others. I have previously prepared a guide for installing Drupal 8, in this description we will install the current release of major version 9.

On December 2019, 4, Drupal released its currently latest base system, 8.8.0. We’ve talked about how to easily upgrade the Drupal base system before, but more has changed in this release, so we need to get a little deeper into things. So in this description we will look at how to upgrade our Drupal base system from 8.7.10 to 8.8.0.

Learn how to easily upgrade your Drupal 8 base system with Composer

In this tutorial, we will install a Drupal 8 CMS system and make initial setup.