-The file `UnicodeData.txt' in this directory is a copy of
-<http://www.unicode.org/Public/UNIDATA/UnicodeData.txt> on 2006.5.23,
-and is a part of the Unicode Character Database governed by the "UCD
-Terms of Use" shown in the file `copyright.html'.
+Some files in this directory are taken from the Unicode Character
+Database and the Unicode Ideographic Variation Database. These files
+are governed by the Unicode Terms of Use contained in the file
+copyright.html.
+
+The names, URLs, and dates for these files are as follows.
+
+BidiMirroring.txt
+http://www.unicode.org/Public/UNIDATA/BidiMirroring.txt
+2013-12-17
+
+IVD_Sequences.txt
+http://www.unicode.org/ivd/data/2014-05-16/IVD_Sequences.txt
+2014-05-16
+
+UnicodeData.txt
+http://www.unicode.org/Public/UNIDATA/UnicodeData.txt
+2014-03-10
+
+Blocks.txt
+http://www.unicode.org/Public/8.0.0/ucd/Blocks.txt
+2014-11-10
+
+NormalizationTest.txt
+http://www.unicode.org/Public/UNIDATA/NormalizationTest.txt
+2016-07-16