fix(rpc,platform): update msgpackr to 1.11.10 for Cloudflare Workers compatibility#6191
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tim-smart merged 1 commit intoEffect-TS:mainEffect-TS/effect:mainfrom Apr 22, 2026
IGassmann:fix/update-msgpackr-1.11.10IGassmann/effect:fix/update-msgpackr-1.11.10Copy head branch name to clipboard
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fix(rpc,platform): update msgpackr to 1.11.10 for Cloudflare Workers compatibility#6191tim-smart merged 1 commit intoEffect-TS:mainEffect-TS/effect:mainfrom IGassmann:fix/update-msgpackr-1.11.10IGassmann/effect:fix/update-msgpackr-1.11.10Copy head branch name to clipboard
tim-smart merged 1 commit intoEffect-TS:mainEffect-TS/effect:mainfrom
IGassmann:fix/update-msgpackr-1.11.10IGassmann/effect:fix/update-msgpackr-1.11.10Copy head branch name to clipboard
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…compatibility Fixes Effect-TS#6169. The previous msgpackr version used `new Function()` for JIT optimization which throws at runtime on Cloudflare Workers despite passing the startup probe. Version 1.11.10 wraps the JIT call in a try/catch, falling back to the interpreted path.
🦋 Changeset detectedLatest commit: 582d5b2 The changes in this PR will be included in the next version bump. This PR includes changesets to release 31 packages
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This was referenced Apr 20, 2026
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Description
Fixes #6169.
Updates
msgpackrminimum version from^1.11.4to^1.11.10in both@effect/rpcand@effect/platform.Version 1.11.10 includes an upstream fix that wraps the JIT
new Function()call in a try/catch, falling back to the interpreted path when dynamic code evaluation is blocked at runtime. This resolves silent RPC decode failures on Cloudflare Workers, wherenew Function()is permitted during module initialization but blocked at request time.Related
@effect/rpcfor Durable Object sync on Cloudflare Workers