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@smithy/signature-v4

What changed in @smithy/signature-v4 5, from its official release notes, upgrade guides and advisories. Sources checked 2026-10-22.

1 new APIs and options3 fixes and other

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@smithy/signature-v4 54 changes

New APIs and options 1

  • Credentials can now be snapshotted for event-stream signing.

    5.3.14release notes

Fixes and other changes 3

  • Non-ASCII whitespace is now preserved in canonical headers.

    5.7.4release notes

  • Type updates support projects configured with isolatedModules=true.

    5.6.3release notes

  • The exported API surface was cleaned up; the notes do not specify which exports changed.

    5.4.0release notes