HISAT2 index difference GRCh38 vs hg38

Question

[Atsunop]

HISAT2 index download

I’m going to align human rna-seq data to human genome using HISAT2, but which index should I use?

What is the difference between GRCh38 and UCSC hg38?

[ATpoint]

GRCh37/38(NCBI) vs hg19/hg38(UCSC)