Cloud Functions v1 standard support deprecated

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api version sunset
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Cloud Functions v1 standard support ends with the Node.js 22 runtime. To prevent a "double migration" where developers migrate off Firebase Extensions only to be forced into a second manual refactoring when legacy runtimes sunset, Firebase strongly recommends upgrading all migrated functions to the v2 SDK immediately during this transition, and it is required for function kits.

firebase.google.com/docs/extensions/faq-and-troubl…from the provider's own sitechecked 2026-10-30#4aef6bdfcf

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