Yev from Backblaze here -> Interesting. Any specific errors its throwing? You can ping our B2 team directly at -> https://help.backblaze.com/anonymous_requests/new (select B2 product) -> they'll help you debug!
The version on github is accurate. https://github.com/Backblaze/B2_Command_Line_Tool
Sorry about the confusion.
The latter was mentioned in online docs here: https://www.backblaze.com/b2/docs/quick_command_line.html but seems it's REALLY outdated.