java changedcli-sdks-libraries/sdks/java
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12561256## Semantic versioning
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1258Each major version of this SDK sends one API version in the `anthropic-version` header by default, and a new major version comes with each new API version. The first major version that sends `2026-10-21` is 3.0.0; see [Migrating to API version 2026-10-21](https://platform.claude.com/docs/en/api/migration-2026-10-21#upgrade).
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12581260This package generally follows [SemVer](https://semver.org/spec/v2.0.0.html) conventions, though certain backward-incompatible changes may be released as minor versions:
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126012621. Changes to library internals which are technically public but not intended or documented for external use.
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