We are issuing this PSA in advance because August 12, 2021 is not a security window in the regular Drupal security release window schedule, so there would not normally be any security release on this date.
The Drupal core release will be made between 16:00 – 21:00 UTC (noon – 5:00pm EDT). It is rated as moderately critical and will be an update to a vendor library only.
Drupal 7 core is not affected, although Drupal 7 site owners should review their site following the protocol for managing external libraries and plugins previously suggested by the Drupal Security Team.
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