Hi,

I have just updated Julia for the first time in 10 days and now I face 
problems with old code:

- The error "WARNING: [a] concatenation is deprecated; use [a;] instead". 
Easy to fix, but what is the reasoning behind adding the ";"?

- Type matching has changed: I have a function that takes arguments of the 
type `Array{Array{T,N},1}` (output from `typeof`; in words, it is an array 
where each element is an Array{Any,1} with multiple Array{Float,2}). 
As type specification in the function, `Array{Any,1}` used to work, but not 
anymore. 
Specifying the type as `Array{Array{T,N},1}` with N being an appropriate 
number doesn't work either. 
Is there a solution to this?

Thanks,

Robert

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