Alchemy 2.0 Beta: Default Local Emulation & Gradual Deployments
samgoodwin89 · x · 2026-08-01
Alchemy version 2.0.0-beta.66 makes local emulation the default engine concept. During development, resources like KV, R2, D1, and Queues are emulated locally without any cloud calls.
- Seamless Local-to-Cloud Switching: The Alchemy.remote() function allows developers to opt specific resources back onto the real cloud during dev mode, supporting bidirectional queue communication between local and live environments.
- Worker Versions & Gradual Deployments: Introduces support for Cloudflare Worker versions and gradual deployments, along with sticky sessions.
- Additional Updates: Redesigns Worker URL and domain modeling, and adds OpenTelemetry export, a Prisma provider, and a Bedrock LanguageModel binding.
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