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Anthropic releases Claude API version 2026-10-21

1 article1 sourcesince Oct 21Last article 2h ago ·

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Anthropic releases Claude API version 2026-10-21, its first official Claude API version since 2023, according to a post from its ClaudeDevs account on X. The company says it plans to release versions more often so developers can handle breaking changes before a new model requires them.

The 2023-06-01 version is not deprecated, the post says.

Written by AI from the articles below · updated Oct 21, 5:08 PM ET

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Latest developmentOct 21, 5:03 PM ET
Anthropic releases Claude API version 2026-10-21

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Oct 21
  1. ClaudeDevsOfficial
    Anthropic releases Claude API version 2026-10-21

    AIAnthropic releases API version 2026-10-21, its first official Claude API version since 2023. The company plans to release versions more often so developers can handle breaking changes before a new model requires them. The 2023-06-01 version is not deprecated.

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