What's Changed

Features

• Feature: use pflag as drop-in replacement by @xjasonlyu in #513
• Feature(proxy): support ssh proxy protocol by @xjasonlyu in #519
• Feature: support custom ICMP message handling by @nange in #521

Fixes

• Fix: update gVisor dependency and modify UDP handler to return a boolean by @SuzukiHonoka in #487
• Fix: crash on multiple start/stop due to FD being closed twice by @vecljox in #495
• Fix(log): set log level for glog by @xjasonlyu in #511
• Fix(stack): respond to ICMPv4 echo messages by @xjasonlyu in #514
• Fix: icmp interface binding by @nange in #524
• Fix(build): remove unsupported windows/arm32 target by @xjasonlyu with @Copilot in #542

Others

• Refactor(proxy): registrable proxy protocol by @xjasonlyu in #517
• Refactor(engine): parse multicast groups by @xjasonlyu in #518
• Refactor(dialer): with socket options by @xjasonlyu in #525
• Refactor: ID should return a copy for TCP/UDPConn by @xjasonlyu in #522
• CI: add tun2socks e2e tests by @xjasonlyu in #510
• CI(test): update test workflow by @xjasonlyu in #516
• Chore: bump to go1.26 by @xjasonlyu in #526

New Contributors

• @vecljox made their first contribution in #495
• @xjasonlyu with @Copilot made their first contribution in #542

Full Changelog: v2.6.0...v2.7.0

What's Changed

License Update

• LICENSE: switch to MIT by @xjasonlyu in #462

New Features

• Feature: fdbased open fd with offset by @myloft in #272
• Feature: Add support for multicast by @Amaindex in #245
• Feature: persistent wintun with GUID option by @xjasonlyu in #301
• Feature: set open FD offset for iOS by @hossinasaadi in #418
• Feature: add make for loong64 by @xunmi-git in #427
• Feature(proxy): support gost relay protocol by @xjasonlyu in #310
• Feature(docker): add options for multicast groups by @xjasonlyu in #290
• Feature(socks5): support abstract namespace unix sock by @SuzukiHonoka in #436

Improvement & Fixes

• Improve(actions): add concurrency groups by @xjasonlyu in #289
• Improve: use embedded go-shadowsocks2 by @xjasonlyu in #306
• Improve(proxy/ss): allow explicit none cipher mode by @xjasonlyu in #312
• Improve: optimize the memory footprint under SOCKS5 when USERNAME/PASSWORD authentication is used by @cty123 in #315
• Fix: defer func for safeConnClose by @xjasonlyu in #309
• Fix: call SetSendBufferSize when setting send buffer size option by @niconorsk in #336
• Fix: safely split command strings by @xjasonlyu in #340
• Fix: socks5 usernames and passwords can BOTH be up to 255 bytes by @Yawning in #343
• Fix: codeql autobuild error by @xjasonlyu in #355
• Fix: mutex never unlocked on error by @devil666face in #456
• Refactor: direct proxy parsing by @xjasonlyu in #308
• Refactor(debug): simplify version string by @xjasonlyu in #380
• Refactor(log): use go.uber.org/zap by @xjasonlyu in #389
• Refactor(tunnel): modularize tunnel pkg by @xjasonlyu in #393
• Refactor(core): replace net.IP with netip.Addr by @xjasonlyu in #395
• Refactor(metadata): replace net.IP with netip.Addr by @xjasonlyu in #396
• Refactor(socks): replace net.IP with netip.Addr by @xjasonlyu in #397
• Refactor(pool): move to internal by @xjasonlyu in #398
• Refactor(pool): use generic buffer/pool by @xjasonlyu in #399
• Refactor: bufferpool new function by @xjasonlyu in #407
• Refactor(dialer): use DefaultDialer by @xjasonlyu in #465

New Contributors

• @Amaindex made their first contribution in #245
• @cty123 made their first contribution in #315
• @niconorsk made their first contribution in #336
• @Yawning made their first contribution in #343
• @dependabot made their first contribution in #370
• @hossinasaadi made their first contribution in #418
• @xunmi-git made their first contribution in #427
• @SuzukiHonoka made their first contribution in #436
• @devil666face made their first contribution in #456

Full Changelog: v2.5.2...v2.6.0

What's Changed

License Update

• LICENSE: switch to MIT by @xjasonlyu in #462

New Features

• Feature: fdbased open fd with offset by @myloft in #272
• Feature: Add support for multicast by @Amaindex in #245
• Feature: persistent wintun with GUID option by @xjasonlyu in #301
• Feature: set open FD offset for iOS by @hossinasaadi in #418
• Feature: add make for loong64 by @xunmi-git in #427
• Feature(proxy): support gost relay protocol by @xjasonlyu in #310
• Feature(docker): add options for multicast groups by @xjasonlyu in #290
• Feature(socks5): support abstract namespace unix sock by @SuzukiHonoka in #436

Improvement & Fixes

• Improve(actions): add concurrency groups by @xjasonlyu in #289
• Improve: use embedded go-shadowsocks2 by @xjasonlyu in #306
• Improve(proxy/ss): allow explicit none cipher mode by @xjasonlyu in #312
• Improve: optimize the memory footprint under SOCKS5 when USERNAME/PASSWORD authentication is used by @cty123 in #315
• Fix: defer func for safeConnClose by @xjasonlyu in #309
• Fix: call SetSendBufferSize when setting send buffer size option by @niconorsk in #336
• Fix: safely split command strings by @xjasonlyu in #340
• Fix: socks5 usernames and passwords can BOTH be up to 255 bytes by @Yawning in #343
• Fix: codeql autobuild error by @xjasonlyu in #355
• Fix: mutex never unlocked on error by @devil666face in #456
• Refactor: direct proxy parsing by @xjasonlyu in #308
• Refactor(debug): simplify version string by @xjasonlyu in #380
• Refactor(log): use go.uber.org/zap by @xjasonlyu in #389
• Refactor(tunnel): modularize tunnel pkg by @xjasonlyu in #393
• Refactor(core): replace net.IP with netip.Addr by @xjasonlyu in #395
• Refactor(metadata): replace net.IP with netip.Addr by @xjasonlyu in #396
• Refactor(socks): replace net.IP with netip.Addr by @xjasonlyu in #397
• Refactor(pool): move to internal by @xjasonlyu in #398
• Refactor(pool): use generic buffer/pool by @xjasonlyu in #399
• Refactor: bufferpool new function by @xjasonlyu in #407
• Refactor(dialer): use DefaultDialer by @xjasonlyu in #465

New Contributors

• @Amaindex made their first contribution in #245
• @cty123 made their first contribution in #315
• @niconorsk made their first contribution in #336
• @Yawning made their first contribution in #343
• @dependabot made their first contribution in #370
• @hossinasaadi made their first contribution in #418
• @xunmi-git made their first contribution in #427
• @SuzukiHonoka made their first contribution in #436
• @devil666face made their first contribution in #456

Full Changelog: v2.5.2...v2.6.0-beta

Bug Fixes

• Fix: HTTP proxy basic auth error (#266)

What's Changed

• Feature: log support setting output by @myloft in #248
• CI: update golangci-lint config by @xjasonlyu in #251
• Fix: packets sending issue on certain Linux platform by @xjasonlyu in #254
• Fix: fix panic when unassigned reply code arrives. by @ghostiam in #255

New Contributors

• @ghostiam made their first contribution in #255

Full Changelog: v2.5.0...v2.5.1

Updates

• Feature: support route mark on FreeBSD & OpenBSD in 8d3c28a
• Feature: support bind to interface on windows by @nange in #192
• Feature: support tun pre & post command exec by @Jackarain in #233
• Fix: add enhance tcp relay/half-close by @nange in #219
• Fix: potential crash by bad UDP binding address in #238
• Chore: other bug fixes and performance improvement

New Contributors

• @nange made their first contribution in #192
• @Jackarain made their first contribution in #233
• @myloft made their first contribution in #156

Full Changelog: v2.4.1...v2.5.0

Change

• Use gVisor default TCP buffer size: 1MiB
• Optimize netstats JSON encoding
• Refactor symmetric NAT UDP module
• Bug fixes and performance improvement

Full Changelog: v2.4.0...v2.4.1

Highlight

• Migrate to go 1.18
• Add GOAMD64=v3 for modern CPU (detailed description can be found here)

Feature

• Support YAML format config file
• Add stack statistic API endpoint: /netstats
• Add debug pprof API endpoint: /debug/pprof/
• Add TCP args: tcp-sndbuf, tcp-rcvbuf and tcp-auto-tuning

Change

• Change major version suffix to v2 by @linfan in #88
• Optimize memory consumption
• Refactor modules/codes
• Bug fixes and performance improvement

New Contributor

• @linfan made their first contribution in #88

Full Changelog: v2.3.2...v2.4.0

Feature

• Add FD driver support (#71)
• Add wintun >= 0.14 support (#75)

Change

• Build with go1.17.2
• Update gVisor module to v0.0.0-20211029210705-806fa5c3235c
• Update wireguard-go module to v0.0.0-20211030003956-52704c4b9288

Feature

• Add WINDOWS-ARM64 Platform Support
• Add SOCKS5 over UDS (Unix Domain Socket) Support

Change

• Migrate to go1.17
• Update gVisor module to v0.0.0-20211002000755-82b90506164f
• Update wireguard-go module to v0.0.0-20210927201915-bb745b2ea326