1) replace `samtools` with `pysam` 2) improved I/O performance
1.8
**In this version, we added a new output format, which is a tab-delimited text file summarizing repeat quantification results of all regions.**
1.7
adding fast mode
1.6
Improved speed and memory use for STRs with large repeat sizes.
1.5
fixed one bug for alignment of FASTA input files.
1.4.0
1) add function to check if the reference sequence contains the correct repeat motif. 2) enable `pip install NanoRepeat`. 3) supplied [Tandem Repeat Finder](https://github.com/lh3/TRF-mod) annotation of tandem repeats (repeat unit length in 2-100 bp)