I believe those apply to the Oct 31 release of 10.1.1. If there are really new security fixes in this release, there's virtually no way Apple wouldn't increment the release number and provide us a changelog specific to 10.1.2.
Yeah. But those entries were added and updated in November after 10.1.1 was released. Even the whole security page was republish today. Maybe they are not critical enough to be a x.1.x update...