macOS: Hummingbird 2.1.0 available

Staff

Hello!

We're very glad to inform you that Hummingbird 2.1.0 for macOS is available. Different native versions for Intel and ARM M1/M2/M3/M4/M5 based Mac computers are available for maximum performance.

On Intel based Mac systems, macOS 10.14 Mojave or higher version is required.
On ARM Mx based Mac systems, macOS 11 Big Sur or higher version is required.

Hummingbird is free and open source released under GPLv3: https://gitlab.com/AirVPN/AirVPN-Suite

Main features

Lightweight and stand alone binary client supporting both OpenVPN and WireGuard
No heavy framework required, no GUI
Small RAM footprint
Lightning fast
Based on OpenVPN 3 library fork by AirVPN and WireGuard
Robust leaks prevention through Network Lock based on pf
Proper handling of DNS push by VPN servers
New, more flexible Network Lock

What's new

all libraries and dependencies have been updated
minor bug fixes

Important note for high speed line users

Because of some architectural specifications and implementation in macOS Hummingbird may warn the user about shortage of buffer space, specifically when connected with the UDP. This condition is signaled by Hummingbird with the below messages in the log:

UDP send exception: send: No buffer space available ERROR: NETWORK_SEND_ERROR

The error is caused by the maximum network sockets size set in macOS, a value usually small and unsuited for modern high speed networks. The solution consists in increasing the maximum allowed size for socket buffers and, in case the problem persists, the number of mbuf clusters. The procedure is simple, please find out all the details in the manual. Open the README.md file with any viewer and consult the "Note on macOS and UDP" section.