FOM 123.1 to 125.1 delta, built from a diff plus the Revision Highlights, not from the highlights alone
This page reviews the substantive A330-relevant and fleet-common changes between FOM Rev 123.1 (4/27/26) and FOM Rev 125.1 (8/12/26), built from a whitespace-normalized body diff of the two extracts plus the Revision Highlights. Five revisions landed in the window (124, 124.1, 124.2, 125, 125.1), but revisions 124 to 124.2 published NO Revision Highlights, so about 30 of the changes below exist only in the diff and are marked Diff only.
The FOM itself is the authority, every conflict, every time. This page is an uncontrolled study extract built from text extracts of the two PDFs; tables and figures extract lossily (the 8.1.3 airport table columns especially). Read the current FOM for anything you will act on.