v0.4.0

Changelog

• ec20c31 Add A/AAAA lookup support with -a -6
• 31a0b10 Custom DNS (--dns) can now be specified without port (appends :53)
• 70c2243 Fix fatal error processing unexpected records (#1) by adding a type assertion guard.
• 329b0f7 Fix wrong logic in previous commit Sloppy, no dessert for you.