Async-friendly QUIC implementation in Rust
C-Rank Grade: A (Welcoming) - 65/100
External PR Merge Rate: 64%
Response Time: 12h
First Timer Success: 67%
quinn-rs/quinn has a recorded first-timer success rate of 66.7%. Repositories ranked A typically provide actionable feedback during code reviews and actively nurture new community contributors.
Maintainers in quinn-rs/quinn respond to incoming external pull requests in approximately 12.1 hours on average. Keeping PRs focused on single tasks and ensuring tests pass helps maintainers review faster.
The C-Rank™ system evaluates GitHub projects on a 0–100 scale using real data: PR merge rates, review turnaround time, active maintainer presence, and first-time contributor success. A score of 64.8 places quinn-rs/quinn in the A tier.
The external contributor pull request merge rate for quinn-rs/quinn is 63.7%, based on public PR activity from non-core contributors.
quinn-rs/quinn currently has 2 active issue(s) tagged with beginner-friendly labels like "good first issue", "beginner", or "up-for-grabs".
Balanced & professional review environment in quinn-rs/quinn. Maintains strict focus on technical quality and test standards.
Average Response Latency
Tracks hours until a maintainer leaves a review, comment, or PR response.
External Acceptance Rate
Percentage of community pull requests successfully merged into main.
First PR Conversion
Rate at which developers submitting their first repository PR succeed.
Show contributors that your repository actively reviews and merges external pull requests.
[](https://getmerged.abhishekco.de/quinn-rs/quinn?utm_source=github&utm_medium=badge)
Historical health & responsiveness evolution
External PR acceptance
First PR success rate
50% receive response in
90% receive response in
Maintainer review activity heatmap & prime window prediction
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Detected: UTC
Maintainers are most responsive around 17:00 UTC (17:00 UTC in your timezone). Recommended submission window is Tuesday - Thursday from 00:00 to 04:00 UTC (00:00 - 04:00 UTC local).
Maintainer Strategy: Maintainer Sweet Spot: PRs under 150 lines merge in ~8 hours (80% approval). Large PRs (>500 lines) take ~58 hours (29% approval). Keep your diff compact for rapid review.
In latest commit, when binding to [::1]:4443 on windows11, quinn-udp panics reporting os error 10022 This command could reproduce: cargo run --example server -p quinn -- / This only appears on windows. Linux/MacOS works as usual
@kixelated notes: Quinn currently ignores STOP_SENDING and MAX_STREAM_DATA frames referencing a stream ID above MAX_STREAMS, instead of returning a protocol violation
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When evaluating whether to contribute to quinn-rs/quinn, response velocity and maintainer engagement are crucial. GetMerged continuously tracks pull request trajectories, first-comment latency, and code review rounds to help developers avoid submitting pull requests to backlogged repositories.
Currently, maintainers of quinn-rs/quinn acknowledge new external contributions in approximately 12 hours. Out of all submitted pull requests from non-core authors in the last 180-day window, 63.7% were successfully merged into the primary branch.
quinn-rs/quinn has a recorded first-timer success rate of 66.7%. Repositories ranked Welcoming typically provide actionable feedback during code reviews and actively nurture new community contributors.
The initial maintainer response time averages ~12 hours. Keeping PRs scoped to single concerns and ensuring CI checks succeed will optimize review turnaround.
The C-Rank™ index scores repositories on a 0 to 100 scale using an objective formula: external PR merge rates, initial response speed, active maintainer count, and first-time contributor retention. A score of 64.8 places quinn-rs/quinn in the Welcoming tier.
The external pull request merge rate is 63.7%. GetMerged isolates non-core community contributions so external developers get an accurate benchmark of PR acceptance probability.
Yes, quinn-rs/quinn currently has 2 active issue(s) tagged with beginner-friendly labels. You can inspect these directly from the repository issues tab.
All metrics displayed for quinn-rs/quinn are automatically retrieved via the public GitHub API and recalculated daily. Insider pull requests submitted by repository owners or organization members are excluded from merge rate calculations to preserve objective external contributor statistics.