AiPHPDeveloper.com: Upgrade to Drupal 9.1.x

By nguyen.phan, 16 November, 2020
Olivero Theme

Drupal 9.1.0-beta1 was released in 6 November 2020. From the Drupal 9.1.x, them Olivero is  available in core. For testing, I decided to upgrade my website from version 9.0.7 to 9.1.0-beta. 

  1. Uninstall theme contrib Oliover
  2. Remove theme Oliver from composer 
    composer remove drupal/olivero
  3. Update require core 9.1.0-beta 
    composer require drupal/core-dev:~9.1.0-beta1@dev --dev --no-update --update-with-dependencies

composer require drupal/core-recommended:~9.1.0-beta1@dev --no-update --update-with-dependencies

composer require drupal/core-composer-scaffold:~9.1.0-beta1@dev --no-update --update-with-dependencies

composer require drupal/core-project-message:~9.1.0-beta1@dev --no-update --update-with-dependencies
  4. Update 
    composer update
  5. Install new theme Olivero. 

Update: 19 Nov 2020
 On 18 November 2020, drupal released version 9.1.0-rc1, it include critical security: 

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