Thanks! This answers my question. But I have a new one :-)
Where did you get this version of the table?
My perldoc and the web based documentation have a different table:
The following feature bundles are available:
bundle features included
--------- -----------------
:default array_base
:5.10 say state switch array_base
:5.12 say state switch unicode_strings array_base
:5.14 say state switch unicode_strings array_base
:5.16 say state switch unicode_strings
unicode_eval evalbytes current_sub fc
:5.18 say state switch unicode_strings
unicode_eval evalbytes current_sub fc
...