New Fortran elements, at a glance

allocatable attribute to declare a dynamic array whose size is unknown at compile time
Bracket syntax for array constructors; for example, [1, 2, 3]
Implied do loop array constructor; for example, [(i, i = 1, 3)]
Type coercion, or mixed mode arithmetic, where the values of lower kinds get implicitly promoted when used in expressions with higher kinds
allocate and deallocate statements to explicitly allocate or free arrays from memory
Indexing and slicing arrays
Built-in functions:
- sum, which returns the sum of all elements of a numeric array
- lbound and ubound to return the lower and upper bounds, respectively, of an array
- pack, which returns array elements that meet a condition
- min and max to return the minimum or maximum, respectively, from any number of values
- nint, which returns the nearest integer of an input real number
- all, which returns .true. if all elements of an input logical array are .true.