11# IsoQuant changelog
22
3+ ## IsoQuant 3.11.0, 5 February 2026
4+
5+ - ` --read_group ` now supports multiple read grouping strategies.
6+ You can now simultaneously group counts by samples, BAM tags, read attributes provided in separate TSV files or within read ids themselves.
7+
8+ - New ` --large_output ` option to control which large output files are generated.
9+
10+ - Significant performance optimizations.
11+
12+ - Experimental release of the single-cell/spatial IsoQuant pipeline. Official release will follow soon.
13+
314## IsoQuant 3.10.0, 21 October 2025
415
516- New ` --unmapped_bam ` option for providing unmapped BAM files typical for PacBio CSS data.
1526Use ` --use_secondary ` to process secondary alignments.
1627
1728- New options that force IsoQuant to use only a faction of reads in high-coverage loci.
18- Significantly improves running time and RAM consumption, but affects gene/isoform counts.
19- New default behaviour only affects small chromosomes and scaffolds (<500kbp).
29+ Significantly improves running time and RAM consumption but affects gene/isoform counts.
30+ This new default behaviour only affects small chromosomes and scaffolds (<500kbp).
2031
2132 In some cases, high-coverage regions take too much time to process due to extreme number of mapped reads,
2233especially ` chrM ` (up to 10x longer compared to normal chromosomes). However, using only a fraction of these
@@ -26,7 +37,7 @@ reads is enough to obtain reliable results.
2637 - ` --max_coverage_small_chr ` (default value is 1 million);
2738 - ` --max_coverage_normal_chr ` (default value is infinity, so usual chromosomes are not affected by default even if some genes have extreme coverage).
2839
29- - New option ` --discard_chr ` to discard a list chromosomes from the analysis.
40+ - New option ` --discard_chr ` to discard a list of chromosomes from the analysis.
3041
3142## IsoQuant 3.8.0, 8 September 2025
3243
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