What Is The Difference Between Samtools Mpileup And Pileup

As of samtools 0.1.8 'mpileup' appears to have superseded 'pileup' for variant detection. The samtools website now has pileup as deprecated.

So i am wondering whether i should repeat my recent SNP/INDEL calling with mpileup? But does anyone know what the improvements are using mpileup?

For those who don't already know 'pileup' and 'mpileup' can be used to create a consensus sequence using NGS mapped reads relative to a reference genome, but can also highlight variants relative to the reference.