Five years after the first line of code, Stalwart v1.0 is here: the first stable release, with a finalised database schema, months of profiling and stress testing, a rewritten search engine, and benchmark results that put it ahead of Postfix and Dovecot in 35 of 38 tests.
Ah ok. Was confused. Cause that would have made the community edition mostly useless.
Maybe you mixed that up with the Tenant System in the enterprise Edition?