-### `composer.lock`
-A release tag must contain a `composer.lock` file. It sets which dependencies were available at the time a release was done,
-making it easier to fix issues after the release. It also speeds up `composer install` on stable versions a LOT, by skipping the
-dependencies resolution part.
-
-Since `composer.lock` is ignored by default, either it must be removed from `.gitignore` _in the release branch_,
-or it must be added using `git add --force composer.lock`.
-