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Handling composers "lock file out of date" warning

Link –

Lorna Jane Mitchell explains on her blog which options you have when you see "lock file out of date" warning.

The `composer.lock` also includes a hash of the current `composer.json` when it updates, so you can always tell if you've added a requirement to the `composer.json` file and forgotten to install it.

In that case, you'll see an error message like:

Warning: The lock file is not up to date with the latest changes in composer.json. You may be getting outdated dependencies. Run update to update them.

You now have three options: upgrade everything, figure it out, or do nothing.

http://www.lornajane.net/posts/2016/handling-composer-lock-file-out-of-date-warning

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