Build and Agents API fields moved toward one naming shape

Build and Agents both received a naming cleanup on June 28. The visible Build change is the notSpecified voice-gender value moving to not_specified. Agents also moved several fields toward the same snake_case shape, including dynamic_variables, caller_identity, and limit in places that previously used older names.

This is the kind of SDK-facing change that is small in product terms but important for generated clients. Names should look like the rest of the API, and version pinning gives callers a migration path when they do not.

Read the product changelog entries for the exact field lists:

• Build changelog: not_specified
• Agents changelog: cross-resource field naming

If you are pinned to 2026-06-27 or earlier, keep reading the old names until you move forward.