Nits from a review of the documentation update.
diff --git a/Doc/lib/libsets.tex b/Doc/lib/libsets.tex
index 5f98967..6d49b16 100644
--- a/Doc/lib/libsets.tex
+++ b/Doc/lib/libsets.tex
@@ -91,7 +91,7 @@
{new set with a shallow copy of \var{s}}
\end{tableiii}
-Note, this non-operator versions of \method{union()},
+Note, the non-operator versions of \method{union()},
\method{intersection()}, \method{difference()}, and
\method{symmetric_difference()} will accept any iterable as an argument.
In contrast, their operator based counterparts require their arguments to
@@ -158,10 +158,7 @@
{remove all elements from set \var{s}}
\end{tableiii}
-\versionchanged[Earlier versions had an \method{update()} method; use
- \method{union_update()} instead]{2.3.1}
-
-Note, this non-operator versions of \method{union_update()},
+Note, the non-operator versions of \method{union_update()},
\method{intersection_update()}, \method{difference_update()}, and
\method{symmetric_difference_update()} will accept any iterable as
an argument.