Advanced Features in 5.10


When there is an uninitialized value, 5.10 will include the name of the variable in the warning.

  1. defined or
  2. Turn on features explicitly
  3. say
  4. feature is a lexical pragma
  5. state
  6. regex: Named capture buffers
  7. Possessive quantifier
  8. smartmatch ~~ - Don't use it!
  9. Smart match example - Don't use it!
  10. switch - Don't use it!