</pre>
<p>
-In <a href="http://www.unicode.org/versions/Unicode6.2.0/">The Unicode Standard 6.2</a>,
+In <a href="http://www.unicode.org/versions/Unicode6.3.0/">The Unicode Standard 6.3</a>,
Section 4.5 "General Category"
defines a set of character categories. Go treats
those characters in category Lu, Ll, Lt, Lm, or Lo as Unicode letters,
<p>
Implementation restriction: A compiler may restrict ImportPaths to
non-empty strings using only characters belonging to
-<a href="http://www.unicode.org/versions/Unicode6.2.0/">Unicode's</a>
+<a href="http://www.unicode.org/versions/Unicode6.3.0/">Unicode's</a>
L, M, N, P, and S general categories (the Graphic characters without
spaces) and may also exclude the characters
<code>!"#$%&'()*,:;<=>?[\]^`{|}</code>