This version removes the exclude_archived option as this was a patch to filter out archived entries that were previously buggily leaking out from the Contentful CDA.
The IsArchivedFilter class is removed - using this filter will now break queries.
If any users of this library were not specifying exclude_archived as an option set to true, this release does not alter behaviour as this was strictly opt-in.
This version moves to using the final (Recommendation) version of PSR-6, the PHP-FIG standard for caches in PHP. Previous versions made use of the draft version of this PSR, which is not the same as the final version.