Vibe Coding
Claude Code 2.1.239 Fixes a Bedrock Streaming Bug That Silently Doubled Billed API Calls
In 2.1.239, shipped 2026-08-22, Anthropic fixed Bedrock streaming behind proxies that strip the response Content-Type header. The failure re-ran every turn non-streaming, doubling billed API calls with no visible error, so anyone running Claude Code through a corporate egress proxy on Bedrock has been paying twice for an unknown number of turns. The same release also fixes a startup hang behind an HTTPS proxy when using Bedrock with an SSO profile and `awsAuthRefresh`, because the credential pre-check now honors `HTTPS_PROXY`.
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