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app/v2.12.3

HyNetworks/hysteriaapp/v2.12.3Sep 16, 2026by github-actions[bot]

Upgrading?

What changed from app/v2.12.2 → app/v2.12.3?What's new in app/v2.13.0 after app/v2.12.3?

AI Summary

Adds ECH support and fixes critical bugs related to HTTP proxies and Linux port-hopping.

Key Highlights

  • Added `hysteria ech` subcommand for ECH key generation
  • Fixed plain HTTP transfers through HTTP proxy being cut off after 10 seconds
  • Fixed Linux port-hopping rules incorrectly redirecting outbound UDP traffic
  • Updated quic-go to v0.62.0

New Features

  • ECH configuration and key generation
  • Improved HTTP proxy stability
  • Fixed Linux port-hopping UDP redirection

Full Release Notes

- Added `hysteria ech` subcommand to generate [ECH keys and client configuration](https://hysteria.network/docs/advanced/ECH/#generating-keys)
- Fixed plain HTTP transfers through the HTTP proxy being cut off after 10 seconds
- Fixed Linux [port-hopping](https://hysteria.network/docs/advanced/Port-Hopping/#built-in-port-range-linux) rules incorrectly redirecting outbound UDP traffic, which could break [Realms](https://hysteria.network/docs/advanced/Realms/) connections and other UDP traffic on the same machine
- Updated quic-go to v0.62.0

---

- 新增 `hysteria ech` 子命令，用于生成 [ECH 密钥和客户端配置](https://hysteria.network/zh/docs/advanced/ECH/#_2)
- 修复通过 HTTP 代理模式传输明文 HTTP 连接时，连接会在 10 秒后断开的问题
- 修复 Linux [端口跳跃](https://hysteria.network/zh/docs/advanced/Port-Hopping/#linux)规则错误重定向出站 UDP 流量的问题。此问题可能导致 [Realms](https://hysteria.network/zh/docs/advanced/Realms/) 和其他 UDP 连接失败
- quic-go 更新至 v0.62.0

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