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When one of the most downloaded Python projects releases a new version, does it reach half of the project's downloads within two days as a rule, and how much of its early uptake carries the build-server flag, compared with the release it replaces?

The question

Do releases of the most downloaded Python projects reach half of downloads within two days, and how does their early CI flag compare with the replaced version?

What the record says

For 26 of 37 releasing projects, most releases reached half of downloads within two days, counting each release or any later one: 70.3 per cent (95 per cent interval 54.1 to 83.8), below the brief’s 75 per cent rule. New releases’ early pip and uv downloads carried the CI flag less often than replaced releases, with a median project difference of 6.6 percentage points below.

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