Fix2026.6.880.0
Cloudflare One Client for macOS - DNS fallback regression fix
This hotfix resolves a regression that caused excessive DNS-over-TCP queries by reverting to UDP-first DNS fallback behavior, which now only uses TCP when responses are truncated instead of querying both protocols in parallel.
A new GA release for the macOS Cloudflare One Client is now available on the stable releases downloads page.
This hotfix resolves a regression that caused a large increase in DNS-over-TCP queries to fallback and internal DNS servers. The client now sends fallback DNS queries over UDP first, falling back to TCP only when a response is truncated, instead of querying both protocols in parallel.
dnsmacosfixnetworkingstability
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