=item *
-Platforms with out support infrastructure
+Platforms without support infrastructure
Both Windows CE and z/OS have been historically under-maintained, and are
currently neither successfully building nor regularly being smoke tested.
=item *
-Synonyms for the misleadingly named C<av_len()> has been created:
+Synonyms for the misleadingly named C<av_len()> have been created:
C<av_top_index()> and C<av_tindex>. All three of these return the
number of the highest index in the array, not the number of elements it
contains.
=item *
Perl used to implement get magic in a way that would sometimes hide bugs in
-code could call mg_get() too many times on magical values. This hiding of
+code that could call mg_get() too many times on magical values. This hiding of
errors no longer occurs, so long-standing bugs may become visible now. If
you see magic-related errors in XS code, check to make sure it, together
with the Perl API functions it uses, calls mg_get() only once on SvGMAGICAL()