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Pulse snapshot for 19 October 2026

https://github.com/scikit-learn/scikit-learn

JSON snapshot also available

Committers: summary • month-by-month • graphs: committers per month • commits per month • total committers

Issues: open • resolved • summary • month-by-month • age stats • time-to-close stats • graphs: opened/closed • increase/decrease

PRs: open • merged/closed • summary • month-by-month • age stats • time-to-close stats • graphs: opened/merged/closed • increase/decrease

🔗 Committer pulse

Committers Mo-
nthly
com-
mits 		Month range
Monthly Cu-
mula-
tive
New Uniq %New
42 73 57 3330 182 Sep 19 – Oct 19 2025 ending 12mo back
13 39 33 3343 112 Oct 19 – Nov 19 2025 ending 11mo back
6 26 23 3349 87 Nov 19 – Dec 19 2025 ending 10mo back
12 35 34 3361 81 Dec 19 – Jan 19 2026 ending 9mo back
18 40 45 3379 87 Jan 19 – Feb 19 2026 ending 8mo back
4 22 18 3383 65 Feb 19 – Mar 19 2026 ending 7mo back
16 37 43 3399 80 Mar 19 – Apr 19 2026 ending 6mo back
13 36 36 3412 107 Apr 19 – May 19 2026 ending 5mo back
14 40 35 3426 109 May 19 – Jun 19 2026 ending 4mo back
15 34 44 3441 66 Jun 19 – Jul 19 2026 ending 3mo back
13 35 37 3454 102 Jul 19 – Aug 19 2026 ending 2mo back
7 26 26 3461 71 Aug 19 – Sep 19 2026 ending 1mo back
11 28 39 3472 62 Sep 19 – Oct 19 2026 ending 12:40 UTC
Committerspermonth Produced by GNUPLOT 6.0 patchlevel 5 0 5 10 15 20 25 30 35 40 45 0 2 4 6 8 10 12 20 30 40 50 60 70 80 New committers Total committers New committers New committers Total committers Total committers New committers Total committers Months before 19 October 2026 🔗 Committers per month – scikit-learn/scikit-learn

🔗 For the last 13 months:

Cumulative total committers grew by 142 (from 3330 to 3472) in 12 months.

Totalcommittersandnew Produced by GNUPLOT 6.0 patchlevel 5 15 20 25 30 35 40 45 50 55 60 0 2 4 6 8 10 12 3320 3340 3360 3380 3400 3420 3440 3460 3480 New commiters percentage Cumulative total committers New commiters percentage New commiters percentage Cumulative total committers Cumulative total committers New commiters percentage Cumulative total committers Months before 19 October 2026 🔗 Total committers and % new – scikit-learn/scikit-learn Commitspermonth Produced by GNUPLOT 6.0 patchlevel 5 60 80 100 120 140 160 180 200 0 2 4 6 8 10 12 Commitspermonth_plot_1 Commits per month Months before 19 October 2026 🔗 Commits per month – scikit-learn/scikit-learn

🔗 Issue and PR pulse

Issues PRs Month range
Clsd Opnd + - Mrgd Clsd Opnd + -
58 54 -4 183 97 256 -24 Sep 19 – Oct 19 2025 ending 12mo back
57 44 -13 117 68 157 -28 Oct 19 – Nov 19 2025 ending 11mo back
33 37 +4 87 40 139 +12 Nov 19 – Dec 19 2025 ending 10mo back
42 39 -3 82 66 142 -6 Dec 19 – Jan 19 2026 ending 9mo back
53 60 +7 88 61 160 +11 Jan 19 – Feb 19 2026 ending 8mo back
69 54 -15 81 77 189 +31 Feb 19 – Mar 19 2026 ending 7mo back
96 38 -58 87 110 164 -33 Mar 19 – Apr 19 2026 ending 6mo back
60 47 -13 138 95 200 -33 Apr 19 – May 19 2026 ending 5mo back
38 59 +21 108 62 221 +51 May 19 – Jun 19 2026 ending 4mo back
27 35 +8 65 42 136 +29 Jun 19 – Jul 19 2026 ending 3mo back
59 61 +2 103 64 196 +29 Jul 19 – Aug 19 2026 ending 2mo back
34 44 +10 74 35 167 +58 Aug 19 – Sep 19 2026 ending 1mo back
44 44 0 65 31 126 +30 Sep 19 – Oct 19 2026 ending 12:40 UTC
IncreasedecreaseinopenissuesPRs Produced by GNUPLOT 6.0 patchlevel 5 -60 -50 -40 -30 -20 -10 0 10 20 30 0 2 4 6 8 10 12 -40 -30 -20 -10 0 10 20 30 40 50 60 Increase/decrease in open issues Increase/decrease in open PRs Increase/decrease in open issues Increase/decrease in open issues Increase/decrease in open PRs Increase/decrease in open PRs Increase/decrease in open issues Increase/decrease in open PRs Months before 19 October 2026 🔗 Increase/decrease in open issues/PRs – scikit-learn/scikit-learn

🔗 For the last 13 months:

Issuesclosedandopened Produced by GNUPLOT 6.0 patchlevel 5 20 30 40 50 60 70 80 90 100 0 2 4 6 8 10 12 35 40 45 50 55 60 65 Issues closed Issues opened Issues closed Issues closed Issues opened Issues opened Issues closed Issues opened Months before 19 October 2026 🔗 Issues closed and opened – scikit-learn/scikit-learn PRsmergedclosedandopened Produced by GNUPLOT 6.0 patchlevel 5 80 100 120 140 160 180 200 220 240 260 280 0 2 4 6 8 10 12 120 140 160 180 200 220 240 260 PRs merged+closed PRs opened PRs merged+closed PRs merged+closed PRs opened PRs opened PRs merged+closed PRs opened Months before 19 October 2026 🔗 PRs merged/closed and opened – scikit-learn/scikit-learn

🔗 Open issues

1550 issues were open as of 19 Oct 2026

32.98 times as many issues currently open as the
average number of issues opened per month.

6.95 times as many closed issues as open issues.

Latest1000openissues Produced by GNUPLOT 6.0 patchlevel 5 2026-10 2026-09 2026-08 2026-07 2026-06 2026-05 2026-04 2026-03 2026-02 2026-01 2025-12 2025-11 2025-10 2025-09 2025-08 2025-07 2025-06 2025-05 2025-04 2025-03 2025-02 2025-01 2024-12 2024-11 2024-10 2024-09 2024-08 2024-07 2024-06 2024-05 2024-04 2024-03 2024-02 2024-01 2023-12 2023-11 2023-10 2023-09 2023-08 2023-07 2023-06 2023-05 2023-04 2023-03 2023-02 2023-01 2022-12 2022-11 2022-10 2022-09 2022-08 2022-07 2022-06 2022-05 2022-04 2022-03 2022-02 2022-01 2021-12 2021-11 2021-10 2021-09 2021-08 2021-07 2021-06 2021-05 2021-04 2021-03 2021-02 2021-01 2020-12 2020-11 2020-10 2020-09 2020-08 2020-07 2020-06 2020-05 2020-04 2020-03 2020-02 2020-01 2019-12 2019-11 2019-10 2019-09 2019-08 2019-07 2019-06 2019-05 2019-04 2019-03 2019-02 2019-01 2018-12 2018-11 2018-10 2018-09 2018-08 2018-07 2018-06 2018-05 2018-04 2018-03 2018-02 2018-01 2017-12 2017-11 2017-10 2017-09 2017-08 2017-07 2017-06 2017-05 2017-04 2017-03 2017-02 2017-01 2016-12 2016-11 2016-10 2016-09 2016-07 2016-06 2016-05 2016-04 2016-02 2016-01 2015-11 2015-10 2015-06 2015-05 2015-04 2015-03 2014-12 2014-07 2013-02 2011-12 2011-10 Number of issues still open Latest1000openissues_plot_2 20 26 47 26 24 22 6 16 15 7 7 7 11 13 13 3 15 9 6 13 6 7 6 12 8 9 10 11 7 14 8 6 15 10 8 10 9 10 16 11 13 7 18 16 15 6 9 9 10 6 10 12 9 4 11 13 13 3 5 13 18 11 7 6 4 8 10 7 5 3 5 11 6 2 5 1 6 7 5 7 7 7 9 4 4 4 1 7 7 4 4 2 2 4 3 1 3 2 5 4 6 1 1 1 1 1 1 5 3 2 3 3 4 3 2 4 4 1 1 1 4 1 3 1 2 2 3 3 2 2 1 1 1 2 1 1 1 1 1 Number of issues still open Number of issues still open Latest1000openissues_plot_2 Month created Latest 1000 open issues

🔗 Age statistics for latest 1000 open issues
Newest 1st Qu Median Mean 3rd Qu 𝜂90th Oldest
0 days 416 days 1211 days 1342 days 1991 days 2821 days 5480 days
Standard deviation: 1057 days

🔗 Open PRs

606 PRs were open as of 19 Oct 2026

3.50 times as many PRs currently open as the
average number of PRs opened per month.

34.53 times as many closed PRs as open PRs.

Produced by GNUPLOT 6.0 patchlevel 5 2026-10 2026-09 2026-08 2026-07 2026-06 2026-05 2026-04 2026-03 2026-02 2026-01 2025-12 2025-11 2025-10 2025-09 2025-08 2025-07 2025-06 2025-05 2025-04 2025-03 2025-02 2025-01 2024-12 2024-11 2024-10 2024-09 2024-08 2024-07 2024-06 2024-05 2024-04 2024-03 2024-02 2023-12 2023-11 2023-10 2023-09 2023-08 2023-07 2023-06 2023-05 2023-04 2023-03 2023-02 2023-01 2022-12 2022-11 2022-10 2022-09 2022-08 2022-07 2022-06 2022-05 2022-04 2022-03 2022-02 2022-01 2021-12 2021-11 2021-10 2021-09 2021-07 2021-05 2021-04 2021-03 2021-02 2021-01 2020-12 2020-11 2020-10 2020-09 2020-08 2020-07 2020-06 2020-05 2020-04 2020-03 2020-02 2020-01 2019-12 2019-11 2019-09 2019-08 2019-07 2019-06 2019-03 2019-02 2019-01 2018-12 2018-11 2018-10 2018-08 2018-07 2018-06 2018-05 2018-03 2017-07 2017-06 2017-03 2017-02 2017-01 2016-08 2015-01 Number of PRs still open _plot_2 39 58 55 26 26 14 16 12 6 3 9 5 10 7 2 5 9 6 4 5 3 1 6 8 9 5 11 4 4 5 3 5 5 3 6 1 4 5 4 3 4 8 7 5 4 6 3 2 3 5 4 4 2 2 5 5 1 9 5 3 1 3 2 3 2 4 6 2 6 2 3 2 6 2 3 4 4 4 3 2 4 2 3 1 2 1 1 3 1 1 3 1 3 5 3 1 1 1 1 1 2 1 1 Number of PRs still open Number of PRs still open _plot_2 Month created

🔗 Age statistics for all open PRs
Newest 1st Qu Median Mean 3rd Qu 𝜂90th Oldest
0 days 79 days 522 days 883 days 1518 days 2352 days 4297 days
Standard deviation: 936 days

🔗 Issues resolved

10771 issues were closed as of 19 Oct 2026

6.95 times as many closed issues as open issues.

31 percent ratio of total closed issues to total commits.

Latest1000closedissues Produced by GNUPLOT 6.0 patchlevel 5 2026-10 2026-09 2026-08 2026-07 2026-06 2026-05 2026-04 2026-03 2026-02 2026-01 2025-12 2025-11 2025-10 2025-09 2025-08 2025-07 2025-06 2025-05 2025-04 2025-03 2025-01 2024-10 2024-09 2024-08 2024-07 2024-06 2024-05 2024-04 2024-03 2024-02 2024-01 2023-12 2023-09 2023-07 2023-06 2023-05 2023-03 2022-11 2022-09 2022-08 2022-07 2022-06 2022-04 2022-03 2022-01 2021-11 2021-07 2021-04 2021-02 2019-02 2018-11 2018-06 2017-10 2017-01 2016-10 Number of issues closed Latest1000closedissues_plot_2 16 25 31 84 36 50 89 75 71 38 28 58 53 49 45 60 41 41 37 26 2 1 2 2 4 1 3 1 1 2 1 1 1 2 1 1 1 1 1 1 1 2 1 1 2 1 1 1 1 1 1 1 1 1 1 Number of issues closed Number of issues closed Latest1000closedissues_plot_2 Month created Latest 1000 closed issues

🔗 Time-to-close statistics for latest 1000 closed issues
Fastest 1st Qu Median Mean 3rd Qu 𝜂90th Longest
0 days 1 days 13 days 507 days 338 days 2160 days 5239 days
Standard deviation: 1006 days

🔗 PRs merged/closed

20923 PRs were merged/closed as of 19 Oct 2026

34.53 times as many closed PRs as open PRs.

Latest1000mergedclosedPRs Produced by GNUPLOT 6.0 patchlevel 5 2026-10 2026-09 2026-08 2026-07 2026-06 2026-05 2026-04 2026-03 2026-02 2026-01 2025-11 2025-10 2025-09 2025-08 2025-07 2025-06 2025-05 2025-04 2025-03 2025-02 2025-01 2024-12 2024-11 2024-10 2024-09 2024-07 2024-06 2024-05 2024-04 2024-03 2024-02 2024-01 2023-12 2023-10 2023-09 2023-07 2023-06 2023-05 2023-04 2023-03 2023-02 2023-01 2022-12 2022-11 2022-10 2022-09 2022-08 2022-07 2022-06 2022-05 2022-04 2022-03 2022-02 2021-11 2021-10 2021-09 2021-07 2021-06 2021-05 2021-04 2021-03 2021-02 2021-01 2020-12 2020-11 2020-10 2020-09 2020-08 2020-07 2020-06 2020-05 2020-04 2020-03 2020-02 2019-11 2019-10 2019-09 2019-08 2019-07 2019-06 2019-05 2019-04 2019-03 2019-02 2018-10 Number of PRs merged/closed Latest1000mergedclosedPRs_plot_2 92 174 120 13 18 22 13 12 13 1 2 1 10 1 8 6 5 13 3 2 8 9 4 12 2 14 6 16 33 10 10 6 2 3 5 2 24 7 7 29 7 5 7 8 11 24 1 5 9 14 19 22 5 2 6 1 1 10 8 6 3 4 3 1 2 1 1 1 15 1 4 2 4 9 5 7 3 1 2 3 2 8 3 5 1 Number of PRs merged/closed Number of PRs merged/closed Latest1000mergedclosedPRs_plot_2 Month created Latest 1000 merged/closed PRs

🔗 Time-to-close statistics for latest 1000 merged/closed PRs
Fastest 1st Qu Median Mean 3rd Qu 𝜂90th Longest
0 days 0 days 1 days 55 days 7 days 45 days 3841 days
Standard deviation: 295 days

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