Julia v1.3 Release Notes

New language features

Language changes

Multi-threading changes

Build system changes

New library functions

New findall(pattern, string) method where pattern is a string or regex ([#31834]).

Standard library changes

Regex can now be multiplied (*) and exponentiated (^), like strings ([#23422]).
Cmd interpolation (`$(x::Cmd) a b c` where) now propagates x's process flags (environment, flags, working directory, etc) if x is the first interpolant and errors otherwise ([#24353]).

LinearAlgebra

The BLAS submodule no longer exports dot, which conflicts with that in LinearAlgebra ([#31838]).
diagm and spdiagm now accept optional m,n initial arguments to specify a size ([#31654]).

SparseArrays

Dates

Statistics

mean now accepts both a function argument and a dims keyword ([#31576]).

Miscellaneous

foldr and mapfoldr now work on any iterator that supports Iterators.reverse, not just arrays ([#31781]).

External dependencies