Thanks, it looks good to me. I think “data” is a better name than “bytes”.

About What’s New, I thought the general idea was to document all enhancements, though I admit this is about as small as they come. There is precedent with the compile() builtin (Issue 1444529, Python 2.6), although there is no indication of kwargs in the main documentation for compile(). But on the other hand, str.split() didn’t get any What’s New entry (Issue 14081, Python 3.3). See also <https://docs.python.org/devguide/committing.html#what-s-new-and-news-entries>.