How to solve the compatibility issues of existing structured data caused by Schema.org version updates?

When Schema.org undergoes version updates, compatibility issues with existing structured data can typically be resolved through version declaration, syntax validation, and progressive adjustments. Clearly defining version归属 and targeted optimization are the core solutions. First, it is recommended to explicitly declare the Schema version used in structured data via `@context` (e.g., `https://schema.org/version/14.0`), to avoid parsing conflicts caused by systems defaulting to the latest version. Second, use tools such as Google Rich Results Test and Schema Markup Validator to validate existing data, focusing on deprecated properties in the new version (e.g., `ratingCount` in the old `aggregateRating` was replaced by `reviewCount`) or newly added required fields. For scenarios with prominent compatibility issues, a progressive migration strategy can be adopted: prioritize retaining core properties (e.g., `name`, `description`), and replace non-critical properties with new version recommendations in phases (e.g., using `itemReviewed` to replace the nested structure of the old `review`). It is recommended to regularly check the official Schema.org update logs and continuously validate data validity with automated monitoring tools to ensure that structured data remains compliant and parsable during version iterations.