Compatibility Notes - Moira 5.2.3

Public API

Moira 5.2.3 introduces no public Python or REST signature changes. Existing 5.2.2 callers can upgrade without code changes.

Kernel Discovery

Automatic small-body discovery now requires evidence that a manifest has installed shard data. Packaged metadata-only manifests are no longer treated as installed asteroid or comet ephemerides.

Two fail-visible policies are preserved:

1. a manifest named by MOIRA_SOVEREIGN_SMALL_BODY_MANIFEST remains an explicit operator instruction and is passed to the loader even when its shards are missing; and
2. an automatically discovered manifest with any referenced shard present is admitted so the loader can reject an incomplete installation.

Applications that intentionally relied on automatic discovery of a manifest with no installed BSP shards were relying on metadata presence rather than a usable ephemeris. Configure the manifest explicitly if that diagnostic behavior is required.

Data And Numerical Behavior

This patch does not modify:

• planetary, asteroid, or comet calculations;
• asteroid-family metadata;
• manifests or BSP shards;
• kernel coverage;
• public result vessels; or
• correction and frame policy.

Upgrade

moira-astro==5.2.3