Julia v1.1 Release Notes

findall(in(b), a) now returns a CartesianIndex when a is a matrix or a higher-dimensional array,
for consistency with other findall methods. findmin(::BitArray) and findmax(::BitArray) now return a CartesianIndex when a is a matrix
or a higher-dimensional array, for consistency with other array types. All compiler-reflection tools (i.e. the code_ class of functions and macros) now print accurate
line number and inlining information in a common style, and take an optional parameter (debuginfo=:default)
to control the verbosity of the metadata shown and isposdef for Diagonal and UniformScaling (#29638).

Source: github.com