[mpeshev]

wp-content/secrets.php is loaded on every request since [64337], like object-cache.php, and can replace how every stored credential is protected, but it was missing from _get_dropins(). Neither the Drop-ins view of the Plugins screen nor the Drop-ins section of Site Health Info showed it.

Trac ticket: https://core.trac.wordpress.org/ticket/66380

Testing

• vendor/bin/phpunit --filter test_get_dropins_includes_secrets_dropin fails without the patch and passes with it.
• vendor/bin/phpunit --filter Tests_Admin_IncludesPlugin passes (65 tests).

Use of AI Tools

AI assistance: Yes
Tool(s): Claude Code
Model(s): Claude Opus 5.5
Used for: finding the issue, drafting the fix and test, and running them. I reviewed every line.

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