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fix: preserve Happy Eyeballs resolver preference - #878

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ryanfowler merged 1 commit into
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fix/happy-eyeballs-family-preference
Jul 18, 2026
Merged

fix: preserve Happy Eyeballs resolver preference#878
ryanfowler merged 1 commit into
mainfrom
fix/happy-eyeballs-family-preference

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Summary

  • preserve the first successful DNS address family when interleaving connection candidates
  • keep IPv4 ahead of IPv6 when A resolution wins the grace-period race
  • add a deterministic regression test for the delayed IPv6 connection case

Validation

  • cargo fmt --check
  • cargo clippy --locked --all-targets --all-features -- -D warnings
  • cargo test --locked --all-features --lib --bins

@ryanfowler
ryanfowler enabled auto-merge July 18, 2026 00:51
@ryanfowler
ryanfowler merged commit 8f6020f into main Jul 18, 2026
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@ryanfowler
ryanfowler deleted the fix/happy-eyeballs-family-preference branch July 18, 2026 00:54
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