JL-26 changelog
The current text is JL-26 Edition 2026 r0, a draft. Every result cites the edition and revision it used.
Versions
| Text | Date | Status | Notes |
|---|---|---|---|
| JL-26 Edition 2026 r0 | 30 October 2026 | Draft | First published text |
How versions work
- An edition is named for its year: JL-26 is the 2026 edition.
- Corrections appear as revisions: r1, r2 and so on.
- Formulas change only in a new edition, never in a revision.
- Every result states the edition and revision it used.
Open items in the current draft
- Some citations are marked unverified in the text and are being re-checked.
- The uncertainty-combination clause follows the GUM approach and will be confirmed against the guide.
Comment on the method
Send corrections, rebuttals or questions through the contact page. Substantive changes are listed here with their reason.
Questions
Will old results still be valid after a new edition?
Yes, as results under the edition they cite. They are not silently re-scored under the new one.
Keep reading
JL-26 overviewJL-26, the Joule Ledger: five energy accounts that must close, four meter points, five ratios, and labels and grades for every result.Labels and gradesHow JL-26 labels every energy result (Measured, Estimated, Projected), grades who checked it (Declared, Witnessed, Replicated) and labels science claims.ContactContact AAERL about a Joule Ledger Assessment, advisory, the enterprise license, the textbook, or a research collaboration.
Take the next step.
The JL-26 changelog: the current text, JL-26 Edition 2026 r0 (draft), how editions and revisions work, and each change to the method with its reason.