For those who missed the memo, Unicode Version 9.0 was released on June 21, 2016, which added exactly 7,500 characters to the standard. Unicode now includes a total 128,172 characters, which is just shy of 3,000 characters under two full 256×256 planes.
While Version 9.0 does not add any new CJK Unified Ideographs, I used this opportunity to enhance my single-page CJK Unified/Compatibility Ideographs document to better track unassigned code points for the relevant blocks and planes. The image at the top of this article shows the first half of the document, and if you click on it, you’ll access the original PDF file that can be squirreled away for reference purposes.
I also used this opportunity to update my tentative Unicode Version 10.0 document in the same way.
As usual, enjoy!