Reverse-chronological order consistent (dis)use of periods within each change rewrote markup for improved readability. HISTORY: Put history in reverse-chronological order (as the most common use case for this file is humans who want to see the most recent changes). PERIODS: Consistency is your friend (and mine!). MARKUP: Each version is a subheading, and each change is a bullet point. Although the previous method wasn't semantically inaccurate, this change fosters improved semantics as well as improved readability for humans.