crystal v0.18.6 Release Notes

Release Date: 2016-06-28 // almost 8 years ago
    • ๐Ÿ“œ T? is now parsed as Union(T, Nil) outside the type grammar
    • โž• Added String#sub overloads for replacing an index or range with a char or string
    • ๐Ÿ›  Several bugs fixes