VSEARCH 1.9.7

Masking behavior is changed somewhat to keep the letter case of the input sequences unchanged when no masking is performed. Masking is now performed also during chimera detection. Documentation updated.

VSEARCH 1.9.6

Should fix bug in aligned sequences produced with --fastapairs and --userout (qrow, trow) options (issue #153).

VSEARCH 1.9.5

Fixed bug resulting in inferior chimera detection performance.

VSEARCH 1.9.4

Fixed incrementation of counter when relabeling dereplicated sequences.

VSEARCH 1.9.3

Workaround for missing x86intrin.h with old compilers

VSEARCH 1.9.2

Fixed a bug in computation of some values with --fastq_stats.

VSEARCH 1.9.1

Fixed memory leak and a bug in score computation in fastq_mergepairs, and improved speed.

VSEARCH 1.9.0

Added the --fastq_mergepairs command and associated options. This command has not been tested well yet. Included additional files to avoid dependency of autoconf for compilation. Fixed an error where identifiers in fasta headers where not truncated at tabs, just spaces. Fixed a bug in detection of the file format (FASTA/FASTQ) of a gzip compressed input file.

VSEARCH 1.8.1

This release fixes some compatitibilty issues with older OS X versions as well as with QIIME and usearch61. OS X version 10.7 and newer should now be properly supported. The --threads option will now accept floating point arguments for compatibility with usearch61 and QIIME (specifically identify_chimeric_seqs.py).

VSEARCH 1.8.0

Added --search_exact, --fastx_mask and --fastq_convert commands. Changed most commands to read FASTQ input files as well as FASTA files. Modified --fastx_revcomp and --fastx_subsample to also write FASTQ files.