feat(node)!: Drop support for Fastify <3.21.0 - #22752
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Removes `FastifyInstrumentationV3` (and `instrumentFastifyV3`), the OpenTelemetry instrumentation that covered the early Fastify v3 range `>=3.0.0 <3.21.0`. The channel-based `fastifyIntegration` from `@sentry/server-utils` covers Fastify `>=3.21.0 <6`, so the node wrapper is reduced to a pass-through. Ref: #22346 Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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The channel-based fastify integration only covers `>=3.21.0 <6`, so the `node-fastify-3` app's `fastify@~3.20.0` variant no longer has instrumentation and its span assertions would fail. The default `fastify@3.29.5` dependency keeps v3 covered.
JPeer264
approved these changes
Jul 28, 2026
andreiborza
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July 28, 2026 11:27
chargome
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Jul 28, 2026
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closes #22658 👀 |
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What
Drops support for Fastify
<3.21.0by removingFastifyInstrumentationV3(andinstrumentFastifyV3). The nodefastifyIntegrationbecomes a thin pass-through to the channel-based integration in@sentry/server-utils.Why
The channel-based
fastifyIntegration(default since #22501) covers Fastify>=3.21.0 <6. The v3 OpenTelemetry instrumentation only existed to fill the>=3.0.0 <3.21.0gap, and it was the last remaining import-in-the-middle module-patcher in@sentry/node. Dropping the old Fastify range lets us remove it.Ref: #22346