Upstream released a new version: https://github.com/aria2/aria2/releases/tag/release-1.35.0 The new version apparently also has fixed the TLS warning that the current version emits: > [WARN] aria2c had to connect to the other side using an unknown TLS protocol. The integrity and confidentiality of the connection might be compromised.
aria2 1.35.0 landed in r516662 on 2019-11-04. Thanks!