WordPress Version Update causes CMS warnings and breaking RSS imports into Distribution

Incident Report for Pugpig

Postmortem

An updated version of WordPress introduced a deprecation warning that appeared at the top of pages.

This problem affects a handful of sites that had advanced logging enabled. It was unlikely to affect production feeds - more likely to be staging or UAT feeds that have extra logging. As production feeds were not affected, we have downgraded the impact to Major from Critical.

For reference, the warning was.

<b>Deprecated</b>: class-wp-feed-cache.php is <strong>deprecated</strong> since version 5.6.0 with no alternative available.

This is the root issue:

https://github.com/radgeek/feedwordpress/issues/127#issuecomment-762513715

Posted Jan 19, 2021 - 10:53 UTC

Resolved

We have now applied the fix and feed processing is now back to normal.
Posted Jan 19, 2021 - 10:34 UTC

Investigating

A WordPress 5.6 upgrade at 10:14 has caused deprecation warnings to appear on the site. The messages are harmless, however they will break RSS Feed imports into Express. The issue has been identified and will be fixed shortly.

Update: This only affects a handful of sites that had advanced logging enabled. It was unlikely to affect production feeds - more likely to be staging or UAT feeds that have extra logging.
Posted Jan 19, 2021 - 10:32 UTC
This incident affected: Pugpig Express (Express RSS Ingestion).