We've had a couple of PRs on the php-fig/container repository ready for the 1.1 and 2.0 releases, per the PSR Evolution bylaw (
https://www.php-fig.org/bylaws/psr-evolution/).
As both David Negrier (original editor) nor Mathieu Napoli (current editor) have indicated they do not have time currently to push these forward, as a CC member, I'm opening the discussion period, and, in two weeks, will open a vote (assuming we have addressed any reported issues/problems with the patches).
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