Source published 2026-07-31 · Checked 2026-10-04
What the source reports
The official publication explains that the revised flat file corrects some unavailable values that had appeared as zero. The June full set was already correct.
What to check in a Leaf project
Store blank factors as unavailable rather than zero and record the workbook version in calculations. Leaf’s parsed factors refer to the revised1.2 flat file; users still need to match each exact category, unit and boundary.
Scope and limits
- Manufacturer or scheme statements retain their source scope; no independent product endorsement is implied.