ST-2026-049 · SDKs, clients & toolchains
Cloudflare TypeScript SDK v6 changes retry and empty-response behaviour
Cloudflare TypeScript SDK v6 respects full Retry-After values, returns undefined for zero-length responses and changes credential and query handling.
CloudflareTypeScript SDKRetry-Afterv6
Previous state
The SDK capped Retry-After handling, used the prior empty-response contract and treated embedded query and empty credential values differently.
Current state
Version 6 adopts the documented retry, undefined-response, credential and query-merging contracts.
Affected users
Who needs to care
TypeScript and JavaScript integrations upgrading the official Cloudflare SDK.
Required response
What to do
Review retry timeouts, nullable return handling, environment configuration and URL construction before upgrading.
Evidence boundary
What the source does not prove
The release changes the client contract; it does not change every underlying Cloudflare API response.
Lifecycle history
Dated event sequence
- v6 released
New retry and response contracts became effective for adopters.
Evidence ledger
First-party sources
- 01Cloudflare Developers — Cloudflare SDK changelog
Official SDK changelog · 2026-04-30
Open official source ↗