Revision History

Updated

The paper is revised as products, prices, research and regulations change. Each version has a number and a date; please cite the version you read, as described in Reuse and citation.

Version numbers. A change in the second number (1.0 to 1.1) marks added sections, updated figures or corrected errors. A change in the first number (1.x to 2.0) marks a substantial revision of the recommendations or structure. Spelling, formatting and link fixes that leave the meaning unchanged are made without a new version.

Version 1.0

Published October 8, 2026. Current version.

  • First public web edition.
  • PDF edition in preparation.

Earlier versions

Each earlier version will be listed here with its date, a summary of changes, and links to its archived web edition, PDF and DOI.

Contents