These charts show the monthly merge rates for PRs in some large GitHub repositories.
Details:
- The raw data was fetched October 19, 2023.
- Each bar is a month. October 2023 isn't shown, so each chart ends with September 2023.
- PRs that are closed but not merged have been ignored.
- PRs that are marked as drafts have been ignored.
- PRs opened by bots have been ignored.
- Of the remaining PRs, the bar shows the proportion of PRs that are merged. So a value of 1 means they are all merged, whereas 0 means they are all still open. i.e.
M / (M + O). - PRs count towards the month they were opened. The chart doesn't give a direct indication of how long a PR remained open before being merged, only that it was merged prior to the data being collected.
vitejs/vite:
sveltejs/svelte
facebook/react
vuejs/core
The differing timescales make it a little difficult to compare these charts directly. Vite data goes back to April 2020, so here's a comparison that shows April 2020 to September 2023 for these same 4 repos:
While these charts can't tell the full story, I think the Vite and Svelte repos appear to be very healthy.
React is a little behind, but it still tends to be over 70% for most months. It does dip a little in June/July 2023, but even then it is above 40%.
In recent months, Vue has had a merge rate below 30%. It hasn't been above 70% in 18 months.
There are two notable spikes for S-O-N/2022 and M-A-M/2023 that buck the overall trend for Vue. I believe the first spike corresponds to work on Vue 3.2.40-3.2.45. The second spike is Vue 3.3.0-3.3.4.
The scripts used to collect the data are at https://github.com/skirtles-code/github-analysis-scripts.