Network / Uplink

Fixed a server-side issue that could cause lockups in low-bandwidth situations
Reduced internal memory consumption per file transfer on relay servers
Improved message prioritization (e.g. file transfers having lower priority than tool announcements)
Fixed a server-side issue where client connections failing their heartbeat check were not closed correctly
Fixed a client-side issue where tools received over an Uplink connection could sometimes be forwarded to other users in the local network even with the "Gateway" flag off; not a security issue as those tools were still only visible to users with proper authorization, and could not be executed
Fixed a rare client-side issue where file transfers could stall indefinitely on the sender side; also reduced memory consumption
Improved log output

Network / Other

Fixed SSH connections retrying to login with the same password after the first attempt fails

Fixed a rare issue where a local tool could be incorrectly rejected by the "allowed to execute" mechanism