LH034 checkpoint, 2 November 2026
Working record, unreviewed. Read data/read-2026-11-02T1531Z, started 15:31 UTC: dist/index.json and the summaries for 29 October (day 8), 30 October (day 9), 31 October (day 10) and 1 November (day 11), all HTTP 200, the first read after the daily reads ended; today is about day 12. Tables: data/tables.json. Written by the scheduled Monday run.
New releases
dist/index.json now lists v27.0.0-alpha.0.0.0 (dated 29 October) above v26.13.0 (28 October); the 29 and 30 October summaries show v27.0.0 downloads (26 thousand, then 1.27 million) in a line the release does not fix, so they count in measure 2's unfixed tail. No new release in lines 22 or 24 since v24.22.2.
Measure 1: share of the day's line downloads at or above the fixed release (observation, nodejs.org requests only)
| Line | Day 7 | Day 8 | Day 9 | Day 10 | Day 11 | Line downloads, day 11 |
|---|---|---|---|---|---|---|
| 22 | 53.9% | 62.2% | 58.6% | 56.6% | 58.1% | 5.0 million |
| 24 | 72.2% | 66.2% | 66.7% | 63.1% | 63.8% | 4.1 million |
| 26 | 64.7% | 85.0% | 80.1% | 89.6% | 90.2% | 4.9 million |
Days 0 to 7 are unchanged (each day's value is from the earliest read holding it). Day 8 (Thursday 29 October) is the busiest day read, 38.9 million requests against 30 to 32 million on the days before: line 26 had 15.4 million, of which v26.13.0, dated 28 October and counted as at or above the fix, had 11.2 million (v26.13.0 had 0.8 million on 28 October, the day it was dated). So line 26's jump on day 8 is mostly downloads of a newer release, not of the fixed one, which the measure cannot separate (as the 30 October checkpoint noted). Days 10 and 11 are a Saturday and a Sunday, when downloads are about half of a weekday's, so their shares come from a different mix of requests. Line 24 fell from 72.2 to 63.8 per cent between days 7 and 11 as v24.22.2 and older releases kept their requests; no cause is read.
Measure 2: the unfixed tail
Share of version-attributed downloads from lines the release does not fix: 11.6 per cent on day 8, 15.8 on day 9, 13.3 on day 10, 13.1 on day 11 (14.7 on day 7). Line 20: 5.5, 6.0, 6.3, 6.3 per cent; line 25: 0.6, 0.7, 0.8, 0.8. Requests with no version: 0.01 per cent of total or less on each day.
Not done
Measure 4 and its comparators are unchanged by these days. The brief's day-30 read, on 22 November, also re-reads days 0 to 7 once.
From studies/LH034/checkpoints/2026-11-02.md in the repository, last changed 2 November 2026.