meta/zstd

Maintenance

Active

Human commits, 30 days

66

Human commits, 90 days

118

Human commits, 365 days

211

Bot share of commits, 365 days

3%

Last commit

Nov 12, 2026 (11 hours ago)

Last human commit

Nov 12, 2026 (11 hours ago)

Authors, 90 days

14

Last release

Feb 19, 2025 (1 year ago)

Median PR merge time

15 hours

Responsiveness: of 24 recent issues, 13% got a maintainer reply. Median first response: 62 days.

• Commit counts are estimated: the commit sample stops before the window start, so GitHub's totals were scaled by the sampled bot share.
• Authors in the last 90 days are counted from the sampled commits only.

Sources: Commits, Releases, Merged pull requests, Issues

People

Owner

Organization

Commits sampled

97 since Nov 12, 2025

Authors for half of commits

1

Authors for 80% of commits

2

Contributors

365

Top committers

• Cyan4973: 72% of commits
• terrelln: 9% of commits
• Usama Arif: 4% of commits
• eyupcanakman: 2% of commits
• kevinjzhang: 2% of commits

• Shares come from the newest sampled commits, since the commit sample is capped.

Sources: Commits, Contributors

Stars

Organic, confidence high

Bursts

• Feb 2, 2016 to Feb 4, 2016: about 27 more stars than usual, peak 15 in one day, a spike that tapers off. Outside explanation: a jump in forks, a jump in issues and pull requests.
• Apr 27, 2016 to Apr 28, 2016: about 30 more stars than usual, peak 15 in one day, a spike that tapers off. Outside explanation: a jump in forks.
• Jul 7, 2016 to Jul 7, 2016: about 29 more stars than usual, peak 30 in one day, a spike that tapers off. Outside explanation: a jump in issues and pull requests.
• Aug 31, 2016 to Sep 21, 2016: about 2.5k more stars than usual, peak 614 in one day, a spike that tapers off. Outside explanation: a jump in forks.
• Mar 7, 2017 to Mar 9, 2017: about 47 more stars than usual, peak 27 in one day, a spike that tapers off. Outside explanation: a jump in issues and pull requests.
• Jan 24, 2018 to Jan 30, 2018: about 440 more stars than usual, peak 216 in one day, a spike that tapers off. No outside explanation found, so this burst is unexplained.
• Mar 13, 2018 to Mar 15, 2018: about 56 more stars than usual, peak 25 in one day, a spike that tapers off. Outside explanation: a jump in forks, a jump in issues and pull requests.
• Mar 30, 2018 to Apr 3, 2018: about 311 more stars than usual, peak 149 in one day, a spike that tapers off. Outside explanation: a jump in forks, a jump in issues and pull requests.
• Nov 25, 2018 to Dec 1, 2018: about 682 more stars than usual, peak 257 in one day, a spike that tapers off. Outside explanation: a Hacker News post, a jump in forks.
• Apr 16, 2019 to Apr 18, 2019: about 133 more stars than usual, peak 75 in one day, a spike that tapers off. Outside explanation: a jump in forks, a jump in issues and pull requests.
• Jul 19, 2019 to Jul 25, 2019: about 204 more stars than usual, peak 48 in one day, a flat block of stars. Outside explanation: a jump in forks, a jump in issues and pull requests.
• Nov 4, 2020 to Nov 5, 2020: about 50 more stars than usual, peak 41 in one day, a spike that tapers off. Outside explanation: a jump in forks, a jump in issues and pull requests.
• Dec 17, 2020 to Dec 19, 2020: about 237 more stars than usual, peak 127 in one day, a spike that tapers off. Outside explanation: a jump in issues and pull requests.
• May 14, 2021 to May 17, 2021: about 108 more stars than usual, peak 59 in one day, a spike that tapers off. Outside explanation: a jump in issues and pull requests.
• Dec 21, 2021 to Dec 23, 2021: about 50 more stars than usual, peak 33 in one day, a spike that tapers off. Outside explanation: a jump in forks, a jump in issues and pull requests.
• Aug 20, 2022 to Aug 29, 2022: about 493 more stars than usual, peak 147 in one day, a spike that tapers off. Outside explanation: a jump in forks.
• Dec 19, 2022 to Dec 22, 2022: about 290 more stars than usual, peak 137 in one day, a spike that tapers off. Outside explanation: a Hacker News post, a jump in forks, a jump in issues and pull requests.
• Sep 8, 2026 to Sep 10, 2026: about 76 more stars than usual, peak 43 in one day, a spike that tapers off. Outside explanation: a jump in forks, a jump in issues and pull requests.

• 1 stars GitHub has since removed (tracked since Oct 14, 2026).

Anyone can buy stars for any repo; bursts alone don't prove the owner did.

• The star history looks organic.
• Star history from the full report of Oct 14, 2026; this update did not re-read it.

Sources: How star history is analyzed

Risk

Flags

No risk flags.

License

Now

BSD-3-Clause (OSI-approved)

A year ago

BSD-3-Clause (OSI-approved)

Packages

No published packages found.

Sources: GitHub: meta/zstd