=item *
+Allow for long form of the General Category Properties, e.g
+C<\p{IsOpenPunctuation}>, not just the abbreviated form, e.g.
+C<\p{IsPs}>.
+
+=item *
+
+Allow for the metaproperties: C<XID Start>, C<XID Continue>,
+C<NF*_NO>, C<NF*_MAYBE> (require the DerivedCoreProperties and
+DerviceNormalizationProperties files).
+
+There are also enumerated properties: C<Decomposition Type>,
+C<Numeric Type>, C<East Asian Width>, C<Line Break>. These
+properties have multiple values: for uniqueness the property
+value should be appended. For example, C<\p{IsAlphabetic}>
+wouldbe the binary property, while C<\p{AlphabeticLineBreak}>
+would mean the enumerated property.
+
+=item *
+
Case Mappings? http://www.unicode.org/unicode/reports/tr21/
lc(), uc(), lcfirst(), and ucfirst() work only for some of the
=back
See L<perlunicode/UNICODE REGULAR EXPRESSION SUPPORT LEVEL> for what's
-there and what's missing.
+there and what's missing. Almost all of Levels 2 and 3 is missing,
+and as of 5.8.0 not even all of Level 1 is there.
=head2 use Thread for iThreads