Masterpress 1.3.6 is a compatibility release. It resolves an edge case with shared fieldsets not working for MySQL 8 when the fieldset is limited to more than 1 post type or taxonomy or excluding any post types or taxonomies.
WOOF_Inflector :: humanize( String $word, String $uppercase = "" )
Returns a human-readable string from $word, by replacing underscores with a space, and by upper-casing the initial character by default.
If you need to uppercase all the words pass ‘all’ as the second parameter.