2.11.1:
+ multiple bugfixes e.g. caused by tsne package
2.9.1:
+ version bump to match Bioconductor version
2.1.3:
+ PAT letters now ordered according to module activation frequency
2.1.2:
+ New color palettes implemented
2.1.1:
+ Calculation of p-values for gene set enrichment is activated by default
2.1.0:
+ PSF analysis module integrated into oposSOM
2.0.8:
+ Mapping of indata features to Ensembl IDs not limited to 1:1 anymore
2.0.7:
+ Bugfix for class(...) error occuring in R > 4.0.0
2.0.6:
+ Bugfixes for write.csv function, very long geneset file names and package version
2.0.5:
+ "note"-slot introduced to oposSOM environment (preferences) and html summary table
2.0.4:
+ Check implemented if over-/under-expression modules were detected. Check implemented if PAT class definition can be applied
2.0.3:
+ Check for detected singleton spot modules implemented
2.0.2:
+ csv output for international spreadsheet format
2.0.1:
+ Colored edges in sample correlation networks & minor fixes
2.0.0: 
+ Great performance boost by implementation of parallel SOM calculation. "som" package dependence removed
