Altering the username that is displayed for a user
Drupal 9.3 and Swift Mailer
Drupal 9.3 will be released on December 8, 2021. Updating from 9.2 should be painless, but if you are using the Swift Mailer module then you'll probably encounter some issues.
Upgrading to Drupal 9 and Composer 2
This article will explain how to deal with some specific and concrete issues you might encounter during the upgrade to Drupal 9 and Composer 2.
How to programmatically check Generate automatic URL alias
How to upgrade Drupal 8 to 9
In less than a month (to be precise on November 2nd), Drupal 8 will no longer be supported. If you still haven't upgraded your site to Drupal 9 you should do it as soon as possible, to keep it secure and to get new features.
AJAX dependent select in Drupal 8 and 9
In order to avoid frustrations, having a code snippet ready to be copy & pasted comes in handy in many situations when you are working with AJAX and Drupal 8 or 9. This is such an article, so don't expect too much theory -- just some code snippets.