samtools/samtools 1.18 on GitHub

Download the source code here: samtools-1.18.tar.bz2.(The "Source code" downloads are generated by GitHub and are incomplete as they don't bundle HTSlib and are missing some generated files.)

New work and changes:

Add minimiser sort option to collate by an indexed fasta. Expand the minimiser sort to arrange the minimiser values in the same order as they occur in the reference genome. This is acts as an extremely crude and simplistic read aligner that can be used to boost read compression. (PR #1818)
Add a --duplicate-count option to markdup. Adds the number of duplicates (including itself) to the original read in a dc tag. (PR #1816. Thanks to wulj2)
Make calmd handle unaligned data or empty files without throwing an error. This is to make pipelines work more smoothly. A warning will still be issued. (PR #1841, fixes #1839. Reported by Filipe G. Vieira)
Consistent, more comprehensive flag filtering for fasta/fastq. Added --rf/--incl[ude]-flags and long options for -F (--excl[ude]-flags and -f (--require-flags). (PR #1842. Thanks to Devang Thakkar)
Apply fastq --input-fmt-option settings. Previously any options specified were not being applied to the input file. (PR #1855. Thanks to John Marshall)
Add fastq -d TAG[:VAL] check. This mirrors view -d and will only output alignments that match TAG (and VAL if specified). (PR #1863, fixes #1854. Requested by Rasmus Kirkegaard)
Extend import --order TAG to --order TAG:length. If length is specified, the tag format goes from integer to a 0-padded string format. This is a workaround for BAM and CRAM that cannot encode an order tag of over 4 billion records. (PR #1850, fixes #1847. Reported by Feng Tian)
New -aa mode for consensus. This works like the -aa option in depth and mpileup. The single a reports all bases in contigs covered by alignments. Double aa (or -a -a) reports Ns even for the references with no alignments against them. (PR #1851, fixes #1849. Requested by Tim Fennell)
Add long option support to samtools index. (PR #1872, fixes #1869. Reported by Jason Bacon)
Be consistent with rounding of "average length" in samtools stats. (PR #1876, fixes #1867. Reported by Jelinek-J)
Add option to ampliconclip that marks reads as unmapped when they do not have enough aligned bases left after clipping. Default is to unmap reads with zero aligned bases. (PR #1865, fixes #1856. Requested by ces)

Bug Fixes:

[From HTSLib] Fix a major bug when searching against a CRAM index where one container has start and end coordinates entirely contained within the previous container. This would occasionally miss data, and sometimes return much more than required. The bug affected versions 1.11 to 1.17, although the change in 1.11 was bug-fixing multi-threaded index queries. This bug did not affect index building. There is no need to reindex your CRAM files. (PR #samtools/htslib#1574, PR #samtools/htslib#1640. Fixes #samtools/htslib#1569, #samtools/htslib#1639, #1808, #1819. Reported by xuxif, Jens Reeder and Jared Simpson)
Fix a sort -M bug (regression) when merging sub-blocks. Data was valid but in a poor order for compression. (PR #1812)
Fix bug in split output format. Now SAM and CRAM format can chosen as well as BAM. Also a documentation change, see below. (PR #1821)
Add error checking to view -e filter expression code. Invalid expressions were not returning an error code. (PR #1833, fixes #1829. Reported by Steve Huang)
Fix reheader CRAM output version. Sets the correct CRAM output version for non-3.0 CRAMs. (PR #1868, fixes #1866. Reported by John Marshall)

Documentation:

Expand the default filtering information on the mpileup man page. (PR #1802, fixes #1801. Reported by gevro)
Add an explanation of the default behaviour of split files on generating a file for reads with missing or unrecognised RG tags. Also a small bug fix, see above. (PR #1821, fixes #1817. Reported by Steve Huang)
In the INSTALL instructions, switched back to openssl for Alpine. This matches the current Alpine Linux practice. (PR #1837, see htslib#1591. Reported by John Marshall)
Fix various typos caught by lintian parsers. (PR #1877. Thanks to Étienne Mollier)
Document consensus --qual-calibration option. (PR #1880, fixes #1879. Reported by John Marshall)
Updated the page about samtools duplicate marking with more detail at https://www.htslib.org/algorithms/duplicate.html
Non user-visible changes and build improvements:
Removed a redundant line that caused a warning in gcc-13. (PR #1838)