API Versioning
There are multiple versions of the ODS Inquiry API specification, each of which is detailed in Inquiry Specifications. The ODS Application supports calls to the following Inquiry API specification versions:
ODS Inquiry API - V3 (Beta)
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Migration Guide from V2 to V3. This is in beta-version and could be subject to changes before 2025.4, when it will be finalised.
ODS Inquiry API - V2 (Current)
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Migration Guide from V1 to V2. This API is deprecated and will be removed in 2027.3. Use ODS Inquiry API V3 from 2025.4 (when it will be finalised) instead, see the V3 Migration Guide.
ODS Inquiry API - V1 (Deprecated)
This API is deprecated and will be removed in 2026.2. Use ODS Inquiry API V2 or V3 instead, see the V2 Migration Guide and then the V3 Migration Guide.