Xray-core

Security & Privacy

Xray, Penetrates Everything. Also the best v2ray-core. Where the magic happens. An open platform for various uses.

Latest v26.3.27 · by XTLSWebsiteXTLS/Xray-core

Release activity

Release activity — 11 releases across 11 days since Mar 27, 2026. Each cell is one day; darker means more releases that day. Nothing is recorded before Mar 27, 2026. Older weeks are hidden at this screen width.
MayJunJulAug
Sunday1 release on May 3, 2026No releases on May 10, 2026No releases on May 17, 2026No releases on May 24, 2026No releases on May 31, 2026No releases on Jun 7, 2026No releases on Jun 14, 2026No releases on Jun 21, 2026No releases on Jun 28, 2026No releases on Jul 5, 2026No releases on Jul 12, 2026No releases on Jul 19, 2026No releases on Jul 26, 2026No releases on Aug 2, 2026No releases on Aug 9, 2026No releases on Aug 16, 2026
MondayNo releases on May 4, 2026No releases on May 11, 2026No releases on May 18, 2026No releases on May 25, 20261 release on Jun 1, 2026No releases on Jun 8, 2026No releases on Jun 15, 20261 release on Jun 22, 2026No releases on Jun 29, 2026No releases on Jul 6, 2026No releases on Jul 13, 2026No releases on Jul 20, 2026No releases on Jul 27, 2026No releases on Aug 3, 2026No releases on Aug 10, 2026No releases on Aug 17, 2026
TuesdayNo releases on May 5, 2026No releases on May 12, 2026No releases on May 19, 2026No releases on May 26, 2026No releases on Jun 2, 2026No releases on Jun 9, 2026No releases on Jun 16, 2026No releases on Jun 23, 2026No releases on Jun 30, 2026No releases on Jul 7, 2026No releases on Jul 14, 2026No releases on Jul 21, 20261 release on Jul 28, 2026No releases on Aug 4, 2026No releases on Aug 11, 2026No releases on Aug 18, 2026
WednesdayNo releases on May 6, 2026No releases on May 13, 2026No releases on May 20, 2026No releases on May 27, 2026No releases on Jun 3, 2026No releases on Jun 10, 2026No releases on Jun 17, 2026No releases on Jun 24, 2026No releases on Jul 1, 2026No releases on Jul 8, 2026No releases on Jul 15, 2026No releases on Jul 22, 2026No releases on Jul 29, 2026No releases on Aug 5, 2026No releases on Aug 12, 2026
ThursdayNo releases on May 7, 2026No releases on May 14, 2026No releases on May 21, 2026No releases on May 28, 2026No releases on Jun 4, 2026No releases on Jun 11, 2026No releases on Jun 18, 2026No releases on Jun 25, 2026No releases on Jul 2, 2026No releases on Jul 9, 2026No releases on Jul 16, 2026No releases on Jul 23, 2026No releases on Jul 30, 2026No releases on Aug 6, 2026No releases on Aug 13, 2026
FridayNo releases on May 8, 2026No releases on May 15, 2026No releases on May 22, 2026No releases on May 29, 2026No releases on Jun 5, 2026No releases on Jun 12, 2026No releases on Jun 19, 2026No releases on Jun 26, 2026No releases on Jul 3, 2026No releases on Jul 10, 2026No releases on Jul 17, 2026No releases on Jul 24, 2026No releases on Jul 31, 2026No releases on Aug 7, 2026No releases on Aug 14, 2026
Saturday1 release on May 9, 2026No releases on May 16, 2026No releases on May 23, 2026No releases on May 30, 2026No releases on Jun 6, 2026No releases on Jun 13, 2026No releases on Jun 20, 20261 release on Jun 27, 2026No releases on Jul 4, 20261 release on Jul 11, 2026No releases on Jul 18, 2026No releases on Jul 25, 2026No releases on Aug 1, 2026No releases on Aug 8, 2026No releases on Aug 15, 2026

11 releases since Mar 27, 2026

Changelog

v26.3.27Latest

Xray-core v26.3.27

Added 9
  • Add header-custom and Sudoku to Finalmask for TCP and UDP traffic customization
  • Port fragment from Direct/Freedom outbound to Finalmask for TCP
  • Port noise from Direct/Freedom outbound to Finalmask for UDP
  • Support dialer-proxy in Finalmask and add XHTTP/3 coverage
  • Add Hysteria 2 inbound and transport layer
  • Add webhook support to routing rules
Changed 6
  • Change XHTTP/3 congestion control to BBR by default
  • Change TTI limit range from 10-100ms to 10-5000ms for mKCP
  • Change echForceQuery default value to full, allowing only ECH-initiated connections by default
  • Move QUIC parameters congestion, brutalUp, brutalDown, and udpHop from Hysteria to Finalmask's quicParams
  • Extend dynamic Chrome User-Agent to more HTTP headers across Xray-core
  • Upgrade uTLS library with new Firefox and Safari fingerprints and add X25519MLKEM768 support
Fixed 7
  • Fix ACKs potentially exceeding MTU limit in mKCP to improve XDNS stability
  • Fix possible panic in XICMP and XDNS
  • Fix broken Browser Dialer introduced by obfuscations in previous version
  • Fix VLESS outbound multi-peer unavailability in WireGuard
  • Fix potential WireGuard inbound routing issues
  • Fix server-side connection closure delay between REALITY server and target after entering bidirectional copy state
  • Fix Online Map

From Xray-core

Finalmask, mKCP, Hysteria, XHTTP, REALITY, TLS ECH, WireGuard, VLESS Reverse Proxy, Global HTTP headers' browser masquerading, API, Others
本次重点更新内容过多
Finalmask https://github.com/XTLS/Xray-core/pull/5657 https://github.com/XTLS/Xray-core/pull/5685 https://github.com/XTLS/Xray-core/pull/5812 https://github.com/XTLS/Xray-core/pull/5850
  • 新增 header-custom (TCP & UDP)、Sudoku (TCP & UDP)，移植了 Direct/Freedom 出站的 fragment (TCP)、noise (UDP)，最终的自定义流量外观拥有了更多可能，且均支持通过 fm 参数分享，基于 Xray-core 的 GUI 应尽快更新 Finalmask（类似 XHTTP extra）
  • 支持了 dialer-proxy，补上了 XHTTP/3，加上一众 TCP 协议/传输层，至此 Xray 产生的所有代理流量均能被 Finalmask
  • 修复了 XICMP、XDNS 可能的 panic，XDNS 相较于 DNSTT/Slipstream 可以通过更多 DNS，且支持代理 UDP
mKCP https://github.com/XTLS/Xray-core/pull/5773 https://github.com/XTLS/Xray-core/pull/5755
Hysteria https://github.com/XTLS/Xray-core/pull/5679 https://github.com/XTLS/Xray-core/pull/5782 https://github.com/XTLS/Xray-core/pull/5772
  • 新增 Hysteria 2 入站与传输层，至此 Xray 支持了完整的 Hysteria 2，甚至 Finalmask 不只有 Salamander
  • 注意若要使用端口跳跃，入站应当只监听一个端口，并使用 iptables 转发其它端口的流量
  • 将 congestion、brutalUp、brutalDown、udpHop 等 QUIC 参数移到了 Finalmask 的 quicParams
XHTTP https://github.com/XTLS/Xray-core/pull/5711 https://github.com/XTLS/Xray-core/pull/5720 https://github.com/XTLS/Xray-core/pull/5803
  • XHTTP/3 拥塞控制改为默认 BBR ，同样支持通过 Finalmask 的 quicParams 设置 "force-brutal"、udpHop 等
  • 修复了上个版本新增 obfuscations 所引入的一些问题，比如 broken Browser Dialer，顺带一些增强
  • 优化了一些代码与内存占用，快去测测 iOS
REALITY https://github.com/XTLS/Xray-core/commit/157e65b34d32363528088c592d4e415d84f01a63 https://github.com/XTLS/Xray-core/commit/2320416ca3869d7818b9d86b749259a75fd3e103 https://github.com/XTLS/Xray-core/pull/5738 https://github.com/XTLS/Xray-core/pull/5759
  • 基于前段时间的经验，非 443 端口、“偷苹果”极易导致服务器 IP 被封锁，故对这两个行为输出警告信息
  • 服务端启动时自动对 target 的 maxUselessRecords 进行四档探测并应用于自身，默认值 32
  • 其它一些修复，比如修复了服务端进入双向拷贝状态后，服务端与 target 间可能未及时关闭连接的问题
TLS ECH https://github.com/XTLS/Xray-core/pull/5725
  • 避免了 WSS & HUS 的 outer ALPN 仍为 http/1.1，虽然这一行为与浏览器不同但 ALPN http/1.1 会被重点关照所以
  • 修改了 echForceQuery 的默认值为 "full"，即默认只允许以 ECH 发起连接
  • 顺便升级了 uTLS 库更新了新版 Firefox、Safari 指纹，支持 X25519MLKEM768，like Chrome
WireGuard https://github.com/XTLS/Xray-core/pull/5833 https://github.com/XTLS/Xray-core/pull/5554 https://github.com/XTLS/Xray-core/pull/5843
  • 出入站 UDP 均实现了 FullCone，提醒一下结合 Finalmask 后它拥有比其它 WireGuard 变种更强大的伪装能力
  • 修复了出站 multi-peer 不可用的问题
  • 修复了入站可能的路由问题
VLESS Reverse Proxy https://github.com/XTLS/Xray-core/pull/5837 https://github.com/XTLS/Xray-core/pull/5752
  • VLESS 出站的 reverse（实际上是一个入站）添加了完整的 sniffing 配置项与功能支持
  • VLESS 入站建立新的反向 mux 连接（可能同时新建出站）后立即检查 burstObservatory
Global HTTP headers' browser masquerading https://github.com/XTLS/Xray-core/pull/5802 https://github.com/XTLS/Xray-core/pull/5689
  • 上个版本改的“Xray-core HTTP 请求的 User-Agent 均由 Go 改为动态 Chrome”扩展到了更多 headers
  • XHTTP、WS、HU、gRPC 传输层可设置 headers User-Agent 来指定 "firefox"/"edge"/"golang"
API https://github.com/XTLS/Xray-core/pull/5722 https://github.com/XTLS/Xray-core/pull/5732
  • 为 routing 的 rules 添加了 webhook 支持
  • 修复了 Online Map
Others https://github.com/XTLS/Xray-core/pull/5680 https://github.com/XTLS/Xray-core/pull/4584
  • 该版本升级了一些依赖，并使用 Go 1.26.1 拉满 inline 编译，已 tag v1.260327.0
  • 其它一些改进与修复，感谢所有贡献者，详见下方完整 change log
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What's Changed
New Contributors

Full Changelog: https://github.com/XTLS/Xray-core/compare/v26.2.6...v26.3.27

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