The patch notes read as if battleships have the same sight as all other ranged naval (base 1). Ships of the Line don't have this penalty and are base sight range 2 (or 3 if considering that they have a special promotion).
His post says that battleships don't have the penalty, and are sight range 2, while Ships of the Line do have the sight range penalty along with sight range bonus and are therefore also sight range 2.
Are battleships supposed to have a sight range penalty?
Why give SotL both a sight range penalty promotion and a sight range bonus promotion? Mandekalu Cavalry don't have both a city damage penalty promotion and a city damage bonus promotion.
It's just a changelog typo. Battleships do not have a penalty.
I can change the SotL code later, but it ends up being the same thing.
G