v1.6.4

• This changes the way that bin disparity is calculated. Now it will be simply the ratio of contigs disagreeing with the consensus taxonomy. This is faster and leads to comparable results overall. This also fix an issue in which very large bins (such as eukaryotic bins) may consume a lot of memory during step 16.
• This is a fast release aimed to fix a single bug. We have not updated SQMtools or the PDF manual so they both reflect version 1.6.3.