Many areas were renamed to avoid potential IP (intellectual property) conflicts with other works. This is related to the effort to make Layonara a commercial property of its own, and we cannot have any overlap for legal and liability reasons. In some few cases, there was an IC renaming (Rilara->Alindor, Xantril->Belinara, etc.). In other cases, we have to reset our minds and assume they were always called that.
It can be confusing, yes, so it may be easiest to not think too much about what they used to be and just work with what they are now.
Oh and as has been said, some sets of areas have been redesigned for one reason or the other. You might also have a look at the
maps to get your bearings.
And what used to be the Dire Wood is now Gloom Woods. What was the Berhagens is now the Brech Mountains. Lar is called Lyn. As mentioned, Fort Velensk is Fort Vehl.
Enjoy the re-exploration of the world!