What's Changed
- refactor: revert misleading error "Fastify instance is already listening" by @jean-michelet in #6098
- refactor(types)!: remove deprecated FastifyPlugin type by @Tony133 in #6897
- ci!: increase minimum runtime version by @climba03003 in #6904
- refactor(types)!: remove deprecated FastifyLoggerInstance in favor of FastifyBaseLogger by @Tony133 in #6906
- refactor!: remove Promise.withResolvers ponyfill by @jean-michelet in #6910
- refactor(types)!: remove deprecated FastifyRequestContext and FastifyReplyContext types by @Tony133 in #6920
- refactor!: disable error handler overrides by default by @jean-michelet in #6915
- refactor(types)!: remove deprecated ValidationResult type alias by @Tony133 in #6914
- chore(deps)!: upgrade undici v8.x by @Tony133 in #6921
- refactor!: remove FSTDEP022 by @climba03003 in #6908
- chore(sponsor): add testmu ai by @Eomm in #6922
- docs: add per-route logging for Google Cloud Functions by @slegarraga in #6907
- refactor!: remove FSTDEP023 deprecation by @jean-michelet in #6913
- refactor!: remove FSTDEP024 deprecation by @jean-michelet in #6912
- refactor!: remove FSTDEP025 by @jean-michelet in #6909
- test: remove @sinonjs/fake-timers by @climba03003 in #6934
- refactor(types)!: remove deprecated req in request.d.ts by @Tony133 in #6935
- refactor(types)!: remove ResSerializerReply type by @jean-michelet in #6911
Full Changelog: v5.11.3...v6.0.0-alpha.0