Time marches on, and Qiong Wang is in step with it. She has updated the RDP Classifer yet again, this time to version 2.15, and released it on SourceForge November 2026. This version is trained on the RDP Bacteria and Archaea Taxonomy training set No. 21 which for the first time includes validated names of uncultured prokaryotes based on genome sequences from the SeqCode registry up to August 2026. The database now includes 23,850 species and 5,058 genera, increases of 25% and 30% over training set version 19 released in 2023. Seven percent of the sequences now come from SeqCode. The training data are available in both RDP and QIIME2 format.
For further details, see the release notes.