v1.7.0 - Winter Update 🎄

📝 Release Notes

This is the end-of-year release with bug fixes and quality-of-life improvements. Happy holidays!

Service

• The listen "network" for outgoing sockets is now automatically determined based on the resolved endpoint address. Manual configuration on systems without dual-stack sockets is no longer required.
• Fixed an issue causing active client sessions to expire after 3 minutes.

Networking

• Fixed an issue preventing "udp6" listeners from starting on Windows.

General

• Added a -version flag to display version information.
• Added request logging and a "listenNetwork" option for pprof.
• Switched logger to log/slog from go.uber.org/zap.

📦 Packages

Filename	Build type
swgp-go-v1.7.0-archlinux-x86-64-v2.tar.zst	Go 1.23.4 w/ CGO
swgp-go-v1.7.0-archlinux-x86-64-v3.tar.zst	Go 1.23.4 w/ CGO
swgp-go-v1.7.0-linux-arm64.tar.zst	Go 1.23.4 w/o CGO
swgp-go-v1.7.0-linux-x86-64-v2.tar.zst	Go 1.23.4 w/o CGO
swgp-go-v1.7.0-linux-x86-64-v3.tar.zst	Go 1.23.4 w/o CGO
swgp-go-v1.7.0-macos-arm64.tar.zst	Go 1.23.4 w/o CGO
swgp-go-v1.7.0-macos-x86-64-v3.tar.zst	Go 1.23.4 w/o CGO
swgp-go-v1.7.0-windows-arm64.tar.zst	Go 1.23.4 w/o CGO
swgp-go-v1.7.0-windows-x86-64-v2.tar.zst	Go 1.23.4 w/o CGO
swgp-go-v1.7.0-windows-x86-64-v3.tar.zst	Go 1.23.4 w/o CGO

© 2024 database64128

v1.6.0 - UDP GSO & GRO 🚀

📝 Release Notes

This release is focused on performance and reliability improvements, with a significant uplift in throughput brought by UDP GSO & GRO.

Networking

• Probe and enable UDP Generic Segmentation Offload (GSO) & Generic Receive Offload (GRO) automatically on Linux and Windows.
  • If you start to have connectivity problems after updating, try the new per-client/server "disableUDPGSO" and "disableUDPGRO" options to disable the feature, and open an issue.
• Fixed an issue that could cause relay sessions to get stuck forever when sendmmsg(2) is used on Linux and NetBSD.
• Improved socket address and control message handling.
• Increased UDP socket buffer size to 7 MiB for improved performance.

General

• Adjusted logger presets for increased efficiency.
• Upgraded to Go 1.23.2.

📦 Packages

Filename	Build type
swgp-go-v1.6.0-archlinux-x86-64-v2.tar.zst	Go 1.23.2 w/ CGO
swgp-go-v1.6.0-archlinux-x86-64-v3.tar.zst	Go 1.23.2 w/ CGO
swgp-go-v1.6.0-linux-arm64.tar.zst	Go 1.23.2 w/o CGO
swgp-go-v1.6.0-linux-x86-64-v2.tar.zst	Go 1.23.2 w/o CGO
swgp-go-v1.6.0-linux-x86-64-v3.tar.zst	Go 1.23.2 w/o CGO
swgp-go-v1.6.0-macos-arm64.tar.zst	Go 1.23.2 w/o CGO
swgp-go-v1.6.0-macos-x86-64-v3.tar.zst	Go 1.23.2 w/o CGO
swgp-go-v1.6.0-windows-arm64.tar.zst	Go 1.23.2 w/o CGO
swgp-go-v1.6.0-windows-x86-64-v2.tar.zst	Go 1.23.2 w/o CGO
swgp-go-v1.6.0-windows-x86-64-v3.tar.zst	Go 1.23.2 w/o CGO

© 2024 database64128

v1.5.0 - Practical Networking 🥅

📝 Release Notes

This release contains mostly quality-of-life improvements, and added a few more knobs here and there for advanced users.

Networking

• Endpoint addresses are now resolved on session creation instead of on startup.
• Support custom "network" (Go's address family preference) for listen and endpoint address resolution.
• Support custom bind address on outgoing sockets.

Release

• Added Darwin build (#37 by @maximko).

📦 Packages

Filename	Build type
swgp-go-v1.5.0-archlinux-x86-64-v2.tar.zst	Go 1.21 w/ CGO
swgp-go-v1.5.0-archlinux-x86-64-v3.tar.zst	Go 1.21 w/ CGO
swgp-go-v1.5.0-linux-arm64.tar.zst	Go 1.21 w/o CGO
swgp-go-v1.5.0-linux-x86-64-v2.tar.zst	Go 1.21 w/o CGO
swgp-go-v1.5.0-linux-x86-64-v3.tar.zst	Go 1.21 w/o CGO
swgp-go-v1.5.0-macos-arm64.tar.zst	Go 1.21 w/o CGO
swgp-go-v1.5.0-macos-x86-64-v3.tar.zst	Go 1.21 w/o CGO
swgp-go-v1.5.0-windows-arm64.tar.zst	Go 1.21 w/o CGO
swgp-go-v1.5.0-windows-x86-64-v2.tar.zst	Go 1.21 w/o CGO
swgp-go-v1.5.0-windows-x86-64-v3.tar.zst	Go 1.21 w/o CGO

© 2024 database64128

v1.4.0 - Spring Update 🌷

📝 Release Notes

This release contains mostly quality-of-life improvements, and added a few more knobs here and there for advanced users.

Networking

• Refactored socket control functions.
• Refactored UDP mmsg path to be allocation-free during use.
• Opened up UDP mmsg path for NetBSD.
• Extended PKTINFO support to macOS.
• Added traffic class (DiffServ + ECN) support.
• Added SO_USER_COOKIE support on FreeBSD.
• Added a few UDP performance tuning knobs.

Other Improvements

• All: Switched non-crypto RNG from math/rand to runtime.fastrand for performance.

📦 Packages

Filename	Build type
swgp-go-v1.4.0-archlinux-x86-64-v2.tar.zst	Go 1.20 w/ CGO
swgp-go-v1.4.0-archlinux-x86-64-v3.tar.zst	Go 1.20 w/ CGO
swgp-go-v1.4.0-linux-arm64.tar.zst	Go 1.20 w/o CGO
swgp-go-v1.4.0-linux-x86-64-v2.tar.zst	Go 1.20 w/o CGO
swgp-go-v1.4.0-linux-x86-64-v3.tar.zst	Go 1.20 w/o CGO
swgp-go-v1.4.0-windows-arm64.tar.zst	Go 1.20 w/o CGO
swgp-go-v1.4.0-windows-x86-64-v2.tar.zst	Go 1.20 w/o CGO
swgp-go-v1.4.0-windows-x86-64-v3.tar.zst	Go 1.20 w/o CGO

© 2023 database64128

v1.3.1 - Patch Release 🛠️

📝 Release Notes

• Updated to Go 1.20.
• Fixed broken client session timeout mechanism in sendmmsg path.
• Other minor improvements.

📦 Packages

Filename	Build type
swgp-go-v1.3.1-archlinux-x86-64-v2.tar.zst	Go 1.20 w/ CGO
swgp-go-v1.3.1-archlinux-x86-64-v3.tar.zst	Go 1.20 w/ CGO
swgp-go-v1.3.1-linux-arm64.tar.zst	Go 1.20 w/o CGO
swgp-go-v1.3.1-linux-x86-64-v2.tar.zst	Go 1.20 w/o CGO
swgp-go-v1.3.1-linux-x86-64-v3.tar.zst	Go 1.20 w/o CGO
swgp-go-v1.3.1-windows-arm64.tar.zst	Go 1.20 w/o CGO
swgp-go-v1.3.1-windows-x86-64-v2.tar.zst	Go 1.20 w/o CGO
swgp-go-v1.3.1-windows-x86-64-v3.tar.zst	Go 1.20 w/o CGO

© 2023 database64128

v1.3.0 - Halloween Update 🎃

📝 Release Notes

⚠️ Breaking change: This release changed the names of the interfaces and peers fields in configuration. The new names are servers and clients. Make sure to update your configuration and use the new -testConf flag to test it before starting.

• Config: Changed "interfaces" and "peers" to "servers" and "clients".
• Config: Disallow unknown fields.
• Overhauled pktinfo processing.
• Added recvmmsg main receive routine.
• Added -testConf flag to test config.

📦 Packages

Filename	Build type
swgp-go-v1.3.0-archlinux-x86-64-v2.tar.zst	Go 1.19 w/ CGO
swgp-go-v1.3.0-archlinux-x86-64-v3.tar.zst	Go 1.19 w/ CGO
swgp-go-v1.3.0-linux-arm64.tar.zst	Go 1.19 w/o CGO
swgp-go-v1.3.0-linux-x86-64-v2.tar.zst	Go 1.19 w/o CGO
swgp-go-v1.3.0-linux-x86-64-v3.tar.zst	Go 1.19 w/o CGO
swgp-go-v1.3.0-windows-arm64.tar.zst	Go 1.19 w/o CGO
swgp-go-v1.3.0-windows-x86-64-v2.tar.zst	Go 1.19 w/o CGO
swgp-go-v1.3.0-windows-x86-64-v3.tar.zst	Go 1.19 w/o CGO

© 2022 database64128

v1.2.3 - Patch Release 🛠️

📝 Release Notes

• More logging options.
• Improved shutdown logic.
• Fixed potential infinite loop in client uplink fast path.

🐛 Known Issues

• 🎉 No known issues!

📦 Packages

Filename	Build type
swgp-go-v1.2.3-archlinux-x86-64-v2.tar.zst	Go 1.19 w/ CGO
swgp-go-v1.2.3-archlinux-x86-64-v3.tar.zst	Go 1.19 w/ CGO
swgp-go-v1.2.3-linux-arm64.tar.zst	Go 1.19 w/o CGO
swgp-go-v1.2.3-linux-x86-64-v2.tar.zst	Go 1.19 w/o CGO
swgp-go-v1.2.3-linux-x86-64-v3.tar.zst	Go 1.19 w/o CGO
swgp-go-v1.2.3-windows-arm64.tar.zst	Go 1.19 w/o CGO
swgp-go-v1.2.3-windows-x86-64-v2.tar.zst	Go 1.19 w/o CGO
swgp-go-v1.2.3-windows-x86-64-v3.tar.zst	Go 1.19 w/o CGO

© 2022 database64128

v1.2.2 - Patch Release 🛠️

📝 Release Notes

• Collect and print relay session stats
• Reduce debug-level logging
• Fix program exit code when missing -confPath
• Update to Go 1.19

🐛 Known Issues

• 🎉 No known issues!

📦 Packages

Filename	Build type
swgp-go-v1.2.2-archlinux-x86-64-v2.tar.zst	Go 1.19 w/ CGO
swgp-go-v1.2.2-archlinux-x86-64-v3.tar.zst	Go 1.19 w/ CGO
swgp-go-v1.2.2-linux-arm64.tar.zst	Go 1.19 w/o CGO
swgp-go-v1.2.2-linux-x86-64-v2.tar.zst	Go 1.19 w/o CGO
swgp-go-v1.2.2-linux-x86-64-v3.tar.zst	Go 1.19 w/o CGO
swgp-go-v1.2.2-windows-arm64.tar.zst	Go 1.19 w/o CGO
swgp-go-v1.2.2-windows-x86-64-v2.tar.zst	Go 1.19 w/o CGO
swgp-go-v1.2.2-windows-x86-64-v3.tar.zst	Go 1.19 w/o CGO

© 2022 database64128

v1.2.1 - Patch Release 🛠️

📝 Release Notes

• Conn: On a failed sendmmsg(2) call, only drop the packet that caused the failure.
• Service: Minor cleanup.

🐛 Known Issues

• 🎉 No known issues!

📦 Packages

Filename	Build type
swgp-go-v1.2.1-archlinux-x86-64-v2.tar.zst	Go 1.18 w/ CGO
swgp-go-v1.2.1-archlinux-x86-64-v3.tar.zst	Go 1.18 w/ CGO
swgp-go-v1.2.1-linux-arm64.tar.zst	Go 1.18 w/o CGO
swgp-go-v1.2.1-linux-x86-64-v2.tar.zst	Go 1.18 w/o CGO
swgp-go-v1.2.1-linux-x86-64-v3.tar.zst	Go 1.18 w/o CGO
swgp-go-v1.2.1-windows-arm64.tar.zst	Go 1.18 w/o CGO
swgp-go-v1.2.1-windows-x86-64-v2.tar.zst	Go 1.18 w/o CGO
swgp-go-v1.2.1-windows-x86-64-v3.tar.zst	Go 1.18 w/o CGO

© 2022 database64128

v1.2.0 - Protocol & Reliability Improvements 🦭

📝 Release Notes

⚠️ This release has a breaking protocol change for the zero-overhead handler. If you use the zero-overhead proxy mode, make sure to upgrade your server and client at the same time.

• Zero-overhead handler: Conceal all-zero MAC2 by using XChaCha20-Poly1305 to encrypt part of handshake packets. This is a breaking protocol change.
• Service: Use NAT table lock to synchronize send channel closure. This simplifies locking and avoids panicking in an unlikely situation where the main loop writes to a closed send channel.

🐛 Known Issues

• 🎉 No known issues!

📦 Packages

Filename	Build type
swgp-go-v1.2.0-archlinux-x86-64-v2.tar.zst	Go 1.18 w/ CGO
swgp-go-v1.2.0-archlinux-x86-64-v3.tar.zst	Go 1.18 w/ CGO
swgp-go-v1.2.0-linux-arm64.tar.zst	Go 1.18 w/o CGO
swgp-go-v1.2.0-linux-x86-64-v2.tar.zst	Go 1.18 w/o CGO
swgp-go-v1.2.0-linux-x86-64-v3.tar.zst	Go 1.18 w/o CGO
swgp-go-v1.2.0-windows-arm64.tar.zst	Go 1.18 w/o CGO
swgp-go-v1.2.0-windows-x86-64-v2.tar.zst	Go 1.18 w/o CGO
swgp-go-v1.2.0-windows-x86-64-v3.tar.zst	Go 1.18 w/o CGO

© 2022 database64128