jj-vcs/jj

Maintenance

Active

Human commits, 30 days

179

Human commits, 90 days

408

Human commits, 365 days

1.9k

Bot share of commits, 365 days

4%

Last commit

Oct 14, 2026 (17 hours ago)

Last human commit

Oct 14, 2026 (17 hours ago)

Authors, 90 days

57

Last release

Oct 7, 2026 (7 days ago)

Median PR merge time

23 hours

Responsiveness: of 29 recent issues, 83% got a maintainer reply. Median first response: 1 hour.

• Commit counts are estimated: the commit sample stops before the window start, so GitHub's totals were scaled by the sampled bot share.

Sources: Commits, Releases, Merged pull requests, Issues

People

Owner

Organization

Commits sampled

480 since Oct 14, 2025

Authors for half of commits

2

Authors for 80% of commits

14

Contributors

381

Top committers

• yuja: 34% of commits
• martinvonz: 17% of commits
• josephlou5: 6% of commits
• drieber: 4% of commits
• PhilipMetzger: 4% of commits

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

Sources: Commits, Contributors

Stars

Mostly organic, confidence high

Bursts

• Feb 17, 2022 to Mar 1, 2022: about 1.2k more stars than usual, peak 510 in one day, a spike that tapers off. Outside explanation: a jump in forks.
• Jul 7, 2022 to Jul 8, 2022: about 20 more stars than usual, peak 16 in one day, a spike that tapers off. No outside explanation found, so this burst is unexplained.
• Aug 1, 2023 to Aug 15, 2023: about 1.2k more stars than usual, peak 741 in one day, a spike that tapers off. No outside explanation found, so this burst is unexplained.
• Nov 6, 2023 to Nov 9, 2023: about 65 more stars than usual, peak 32 in one day, a spike that tapers off. Outside explanation: a jump in issues and pull requests.
• Jan 21, 2024 to Jan 24, 2024: about 112 more stars than usual, peak 47 in one day, a spike that tapers off. Outside explanation: a jump in forks.
• Feb 2, 2024 to Feb 16, 2024: about 1.1k more stars than usual, peak 162 in one day, a spike that tapers off. Outside explanation: a jump in forks.
• Mar 23, 2024 to Mar 28, 2024: about 240 more stars than usual, peak 63 in one day, a shape we can't classify. Outside explanation: a jump in forks, a jump in issues and pull requests.
• Apr 7, 2024 to Apr 10, 2024: about 117 more stars than usual, peak 73 in one day, a spike that tapers off. Outside explanation: a jump in issues and pull requests.
• Jul 1, 2024 to Jul 5, 2024: about 197 more stars than usual, peak 87 in one day, a spike that tapers off. Outside explanation: a jump in forks, a jump in issues and pull requests.
• Jul 9, 2024 to Jul 11, 2024: about 70 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.
• Aug 19, 2024 to Aug 22, 2024: about 150 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.
• Oct 14, 2024 to Oct 26, 2024: about 363 more stars than usual, peak 88 in one day, a spike that tapers off. Outside explanation: a jump in forks, a jump in issues and pull requests.
• Feb 11, 2025 to Feb 14, 2025: about 265 more stars than usual, peak 152 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.
• May 2, 2025 to May 22, 2025: about 2.1k more stars than usual, peak 336 in one day, a spike that tapers off. Outside explanation: a jump in forks.
• Aug 22, 2025 to Aug 23, 2025: about 105 more stars than usual, peak 115 in one day, a spike that tapers off. Outside explanation: a jump in forks, a jump in issues and pull requests.
• Aug 29, 2025 to Sep 1, 2025: about 219 more stars than usual, peak 116 in one day, a spike that tapers off. Outside explanation: a jump in forks, a jump in issues and pull requests.
• Dec 21, 2025 to Dec 23, 2025: about 325 more stars than usual, peak 195 in one day, a spike that tapers off. Outside explanation: a jump in forks, a jump in issues and pull requests.
• Mar 9, 2026 to Mar 12, 2026: about 254 more stars than usual, peak 130 in one day, a spike that tapers off. Outside explanation: a jump in forks, a jump in issues and pull requests.
• Mar 17, 2026 to Mar 18, 2026: about 117 more stars than usual, peak 128 in one day, a spike that tapers off. Outside explanation: a jump in forks, a jump in issues and pull requests.
• Apr 14, 2026 to Apr 16, 2026: about 150 more stars than usual, peak 118 in one day, a spike that tapers off. Outside explanation: a jump in forks, a jump in issues and pull requests.
• Jun 3, 2026 to Jun 4, 2026: about 63 more stars than usual, peak 59 in one day, a spike that tapers off. Outside explanation: a jump in forks, a jump in issues and pull requests.
• Jul 2, 2026 to Jul 5, 2026: about 114 more stars than usual, peak 59 in one day, a shape we can't classify. 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.

• Some star bursts have no matching forks, issues, releases, or launch coverage.
• Anyone can buy stars for any repo, so this describes the star history only.

Sources: How star history is analyzed

Risk

Flags

No risk flags.

License

Now

Apache-2.0 (OSI-approved)

A year ago

Apache-2.0 (OSI-approved)

Packages

No published packages found.

Sources: GitHub: jj-vcs/jj