[Maintenance] extra.symfony.require
configuration introduced
#14400
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I didn't find this option documented in the Symfony docs, just a little info here:
https://symfony.com/doc/current/setup/upgrade_major.html#2-update-to-the-new-major-version-via-composer
and some info quoted from Symfony Cast - upgrade Symfony tutorial:
"This is a performance optimization from Flex: it basically makes sure that Flex only considers Symfony packages that match this version".
It looks like it may save some time working with the
composer update
command