- timezone is no longer an extra setting
- fix a typo of 'subsequently'
=head1 USAGE NOTES
-If you have a datetime column with the C<timezone> extra setting, and subsenquently
+If you have a datetime column with an associated C<timezone>, and subsequently
create/update this column with a DateTime object in the L<DateTime::TimeZone::Floating>
timezone, you will get a warning (as there is a very good chance this will not have the
result you expect). For example: