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Pulse snapshot for 19 October 2026

https://github.com/swiftlang/swift

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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
8 84 9 1406 759 Sep 19 – Oct 19 2025 ending 12mo back
11 85 12 1417 713 Oct 19 – Nov 19 2025 ending 11mo back
11 85 12 1428 548 Nov 19 – Dec 19 2025 ending 10mo back
4 62 6 1432 434 Dec 19 – Jan 19 2026 ending 9mo back
7 72 9 1439 867 Jan 19 – Feb 19 2026 ending 8mo back
6 84 7 1445 664 Feb 19 – Mar 19 2026 ending 7mo back
10 89 11 1455 495 Mar 19 – Apr 19 2026 ending 6mo back
6 75 8 1461 718 Apr 19 – May 19 2026 ending 5mo back
11 87 12 1472 888 May 19 – Jun 19 2026 ending 4mo back
14 91 15 1486 724 Jun 19 – Jul 19 2026 ending 3mo back
10 84 11 1496 951 Jul 19 – Aug 19 2026 ending 2mo back
7 83 8 1503 802 Aug 19 – Sep 19 2026 ending 1mo back
8 94 8 1511 861 Sep 19 – Oct 19 2026 ending 13:29 UTC
Committerspermonth Produced by GNUPLOT 6.0 patchlevel 5 4 6 8 10 12 14 0 2 4 6 8 10 12 60 65 70 75 80 85 90 95 New committers Total committers New committers New committers Total committers Total committers New committers Total committers Months before 19 October 2026 🔗 Committers per month – swiftlang/swift

🔗 For the last 13 months:

Cumulative total committers grew by 105 (from 1406 to 1511) in 12 months.

Totalcommittersandnew Produced by GNUPLOT 6.0 patchlevel 5 6 7 8 9 10 11 12 13 14 15 0 2 4 6 8 10 12 1400 1420 1440 1460 1480 1500 1520 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 – swiftlang/swift Commitspermonth Produced by GNUPLOT 6.0 patchlevel 5 400 500 600 700 800 900 1000 0 2 4 6 8 10 12 Commitspermonth_plot_1 Commits per month Months before 19 October 2026 🔗 Commits per month – swiftlang/swift

🔗 Issue and PR pulse

Issues PRs Month range
Clsd Opnd + - Mrgd Clsd Opnd + -
69 85 +16 439 44 500 +17 Sep 19 – Oct 19 2025 ending 12mo back
104 107 +3 406 46 491 +39 Oct 19 – Nov 19 2025 ending 11mo back
189 118 -71 382 42 432 +8 Nov 19 – Dec 19 2025 ending 10mo back
86 111 +25 308 40 379 +31 Dec 19 – Jan 19 2026 ending 9mo back
80 148 +68 467 59 560 +34 Jan 19 – Feb 19 2026 ending 8mo back
85 141 +56 380 57 477 +40 Feb 19 – Mar 19 2026 ending 7mo back
89 126 +37 354 37 433 +42 Mar 19 – Apr 19 2026 ending 6mo back
62 129 +67 434 99 580 +47 Apr 19 – May 19 2026 ending 5mo back
93 125 +32 573 65 684 +46 May 19 – Jun 19 2026 ending 4mo back
91 109 +18 513 56 618 +49 Jun 19 – Jul 19 2026 ending 3mo back
66 117 +51 568 62 671 +41 Jul 19 – Aug 19 2026 ending 2mo back
98 131 +33 553 30 726 +143 Aug 19 – Sep 19 2026 ending 1mo back
115 178 +63 592 45 777 +140 Sep 19 – Oct 19 2026 ending 13:29 UTC
IncreasedecreaseinopenissuesPRs Produced by GNUPLOT 6.0 patchlevel 5 -80 -60 -40 -20 0 20 40 60 80 0 2 4 6 8 10 12 0 20 40 60 80 100 120 140 160 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 – swiftlang/swift

🔗 For the last 13 months:

Issuesclosedandopened Produced by GNUPLOT 6.0 patchlevel 5 60 80 100 120 140 160 180 200 0 2 4 6 8 10 12 80 90 100 110 120 130 140 150 160 170 180 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 – swiftlang/swift PRsmergedclosedandopened Produced by GNUPLOT 6.0 patchlevel 5 300 350 400 450 500 550 600 650 0 2 4 6 8 10 12 350 400 450 500 550 600 650 700 750 800 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 – swiftlang/swift

🔗 Open issues

7736 issues were open as of 19 Oct 2026

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

1.39 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 2023-01 2022-11 2022-10 2022-08 2022-03 2022-02 2021-12 2021-08 2021-07 2021-05 2021-03 2021-01 2020-08 2020-06 2020-03 2020-02 2019-12 2019-11 2019-05 2019-03 2018-12 2018-10 2018-09 2018-07 2018-05 2018-03 2017-09 2017-07 2017-04 2016-11 2016-10 2016-08 2016-07 2016-05 2016-03 2016-02 2016-01 Number of issues still open Latest1000openissues_plot_2 103 106 63 74 71 84 81 71 93 26 11 14 6 7 12 14 10 10 11 8 5 9 4 2 5 7 5 4 4 1 1 2 4 2 1 3 4 3 2 1 4 1 1 1 2 2 3 1 2 1 2 1 2 1 1 1 1 2 1 1 1 1 1 3 1 1 1 1 1 1 1 1 1 1 1 1 1 1 3 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 67 days 170 days 335 days 263 days 741 days 3938 days
Standard deviation: 588 days

🔗 Open PRs

1746 PRs were open as of 19 Oct 2026

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

39.67 times as many closed PRs as open PRs.

Latest1000openPRs 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 2024-05 2024-04 2024-01 2023-11 2023-08 2023-05 2023-04 2023-03 2023-02 2023-01 2022-12 2022-10 2022-07 2022-05 2021-09 2021-06 2021-05 2020-08 2020-06 2020-02 2019-10 Number of PRs still open Latest1000openPRs_plot_2 189 126 76 73 61 58 49 43 39 32 24 23 27 27 17 25 25 20 7 6 4 2 4 2 1 1 2 3 3 3 1 1 1 2 1 2 2 4 2 1 1 2 2 1 1 1 1 1 1 Number of PRs still open Number of PRs still open Latest1000openPRs_plot_2 Month created Latest 1000 open PRs

🔗 Age statistics for latest 1000 open PRs
Newest 1st Qu Median Mean 3rd Qu 𝜂90th Oldest
0 days 34 days 125 days 218 days 296 days 489 days 2555 days
Standard deviation: 300 days

🔗 Issues resolved

10716 issues were closed as of 19 Oct 2026

1.39 times as many closed issues as open issues.

5 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 2025-02 2025-01 2024-12 2024-11 2024-09 2024-08 2024-07 2024-06 2024-05 2024-04 2024-02 2024-01 2023-12 2023-11 2023-10 2023-09 2023-08 2023-07 2023-06 2023-05 2023-04 2023-03 2023-01 2022-12 2022-11 2022-10 2022-09 2022-08 2022-07 2022-06 2022-05 2022-04 2022-03 2022-02 2021-11 2021-09 2021-08 2021-06 2021-05 2021-02 2021-01 2020-09 2020-08 2020-05 2020-04 2020-03 2020-02 2020-01 2019-11 2019-09 2019-08 2019-07 2019-05 2019-04 2019-03 2018-06 2018-02 2018-01 2017-09 2017-08 2017-07 2017-05 2017-04 2017-03 2016-08 2016-07 2016-05 2016-03 Number of issues closed Latest1000closedissues_plot_2 66 106 68 96 94 80 63 100 60 56 9 5 4 3 3 3 3 3 3 6 4 5 5 3 5 1 3 2 3 1 3 1 1 3 2 1 3 1 3 4 4 6 3 6 16 5 4 1 2 1 1 5 2 2 1 1 3 1 1 2 2 1 1 3 4 2 1 3 2 1 2 2 2 3 1 3 1 1 1 1 1 1 1 1 1 3 2 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 4 days 34 days 404 days 443 days 1240 days 3784 days
Standard deviation: 768 days

🔗 PRs merged/closed

69261 PRs were merged/closed as of 19 Oct 2026

39.67 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 2026-03 2026-02 2026-01 Number of PRs merged/closed Latest1000mergedclosedPRs_plot_2 493 485 5 6 2 1 2 2 4 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 27 days 5 days 24 days 2464 days
Standard deviation: 166 days

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