• plan() was accidentally exporting functions [rt.cpan.org 8385]
  
• diag @msgs would insert # between arguments. [rt.cpan.org 8392]
  
• eq_set() could cause problems under threads due to a weird sort bug
  [rt.cpan.org 6782]
  
• undef no longer equals '' in is_deeply() [rt.cpan.org 6837]
  
• is_deeply() would sometimes compare references as strings.
  [rt.cpan.org 7031]
  
• eq_array() and eq_hash() could hold onto references if they failed
  keeping them in memory and preventing DESTROY. [rt.cpan.org 7032]
  
• is_deeply() could confuse [] with a non-existing value
  [rt.cpan.org 7030]
  
• is_deeply() diagnostics a little off when scalar refs were inside
  an array or hash ref [rt.cpan.org 7033]
  
• Thanks to Fergal Daly for ferretting out all these long standing
  isdeeply and eq* bugs.