Basic stuff and Sources for now. To be continued...
LenientCode
# Install Composer Lenient for being able to place non-compatible packages.
# @see https://github.com/mglaman/composer-drupal-lenientcomposer require mglaman/composer-drupal-lenient# To allow a package to have a lenient Drupal core version constraint, you must add it to: extra.drupal-lenient.allowed-listcomposer config --merge --json extra.drupal-lenient.allowed-list '["drupal/token"]'# Now you can require the module in questioncomposer require drupal/token:1.10.0RectorCode
# Make sure you are at the project's root. Then, get and copy rector.phpcomposer require --dev palantirnet/drupal-rector
cp vendor/palantirnet/drupal-rector/rector.php .# Run check, in this example for a particular module. Remove dry run when ready. vendor/bin/rector process web/modules/contrib/token --dry-runSources
- https://www.drupal.org/docs/upgrading-drupal/upgrading-from-drupal-8-or-later/how-to-upgrade-from-drupal-10-to-drupal-11
- Check deprecations for contrib and custom modules and themes: https://www.drupal.org/docs/upgrading-drupal/prepare-major-upgrade/deprecation-checking-and-correction-tools-to-prepare-for-a-new-drupal-major-version
- Use Rector https://github.com/palantirnet/drupal-rector