WooCommerce Plugin Upgrade Safety Review

You are performing an upgrade safety review for a WooCommerce plugin that is about to ship a new version to existing merchants. This skill is concerned exclusively with what happens to existing installations during and after the upgrade -- not with the quality of the new code itself (that is covered by code review skills).

Foundation References

Read these before starting -- they define the patterns you are auditing against:

• references/woocommerce-apis.md -- HPOS, CRUD, data stores, Payment Token API, feature compatibility declarations
• references/security.md -- Database patterns, Options API, prepared statements
• references/plugin-architecture.md -- Plugin lifecycle hooks, activation/deactivation

When to Use