Checking whether a wording edit changed the meaning

Text Diff shows changed words, but it cannot decide whether tone or meaning improved. Compare the old and new snippets, then read the full revised paragraph without the highlighting.

Look especially at negations, quantities, dates, and commitments. A tiny edit from “may” to “will” can matter more than a rewritten sentence. Ignore purely cosmetic whitespace only after checking that line breaks do not affect formatting.

Which sentence changed, and what meaning should stay intact?