@@ -1679,7 +1679,7 @@ expression support in the :mod:`re` module).
16791679
16801680 The casefolding algorithm is
16811681 `described in section 3.13 'Default Case Folding' of the Unicode Standard
1682- <https://www.unicode.org/versions/Unicode15.1 .0/ch03.pdf > `__.
1682+ <https://www.unicode.org/versions/Unicode16.0 .0/core-spec/chapter-3/#G33992 > `__.
16831683
16841684 ..versionadded ::3.3
16851685
@@ -1843,7 +1843,7 @@ expression support in the :mod:`re` module).
18431843 property being one of "Lm", "Lt", "Lu", "Ll", or "Lo". Note that this is different
18441844 from the `Alphabetic property defined in the section 4.10 'Letters, Alphabetic, and
18451845Ideographic' of the Unicode Standard
1846- <https://www.unicode.org/versions/Unicode15.1 .0/ch04.pdf > `_.
1846+ <https://www.unicode.org/versions/Unicode16.0 .0/core-spec/chapter-4/#G91002 > `_.
18471847
18481848
18491849..method ::str.isascii()
@@ -1979,7 +1979,7 @@ expression support in the :mod:`re` module).
19791979
19801980 The lowercasing algorithm used is
19811981 `described in section 3.13 'Default Case Folding' of the Unicode Standard
1982- <https://www.unicode.org/versions/Unicode15.1 .0/ch03.pdf > `__.
1982+ <https://www.unicode.org/versions/Unicode16.0 .0/core-spec/chapter-3/#G33992 > `__.
19831983
19841984
19851985..method ::str.lstrip([chars])
@@ -2331,7 +2331,7 @@ expression support in the :mod:`re` module).
23312331
23322332 The uppercasing algorithm used is
23332333 `described in section 3.13 'Default Case Folding' of the Unicode Standard
2334- <https://www.unicode.org/versions/Unicode15.1 .0/ch03.pdf > `__.
2334+ <https://www.unicode.org/versions/Unicode16.0 .0/core-spec/chapter-3/#G33992 > `__.
23352335
23362336
23372337..method ::str.zfill(width)