MetaPhlAn database differences

Hi everyone,

I’m starting to go deepen in metagenomics bioinformatic analysis. Previous to post my question I google it my doubt without success.

From the next webpage, it could be possible to download the last release of MetaPhlan databases:
Index of /biobakery3/metaphlan_databases.

Nevertheless, which are the differences between mpa_v20_m200 database vs mpa_v29_CHOCOPhlAn_201901 v293 CHOCOPhlAn…

And also, in my pc I have metaPhlan2 with ancient mpa_v20_m200. How can I update this database? One option will be the steps described by Francesco in the next link: Run Metaphlan offline

Thanks on advance,