v1.6.0

What's Changed

This release fixes the intermittent crashes (SIGSEGV) under heavy real-world traffic, and eliminates a long-hidden file-descriptor leak that degraded stability over time.

Fixed

• Crash root cause (UAF): replaced heap-allocated connection structs with an immortal slot table; epoll events now carry (generation << 32 | slot) stamps so stale/ghost events are always detected instead of hitting reused memory.
• FD leak: ParcelFileDescriptor.fromSocket() duplicates the descriptor — target sockets were only closed on one side, leaking one CLOSE_WAIT socket per proxied connection (fd count previously climbed toward 16384). Both references are now closed.
• Racing connect: a "late winner" socket from abandoned Happy-Eyeballs attempts could leak; now reclaimed and closed.
• Self-healing: stale epoll registrations are automatically purged (inode reverse-lookup), preventing event hot-loops even if a leak path ever reappears.
• DebugActivity: proxy port now persists across restarts; fixed layout height inside ScrollView.

Verification

• Stress suite T1–T4: 98% success at 16 concurrent threads × 30 s
• Soak test: 5 mixed burst/idle rounds — zero crashes, fd count stable
• Epoll registrations per worker dropped from ~266 to ~3–5; CLOSE_WAIT from 1000+ to transient 0–4

Full Changelog: v1.5.1...v1.6.0

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更新內容（中文）

修復真實流量下數分鐘內崩潰（SIGSEGV）的問題，並根除長期隱藏的 fd 洩漏：

• 崩潰根因（UAF）：連線結構改用永不釋放的槽位表，epoll 事件帶世代戳記，殘留事件一律安全攔截
• fd 洩漏：fromSocket() 會複製描述符，target socket 過去只關一邊，每條連線洩漏一個 CLOSE_WAIT；現已雙邊關閉
• 競速連線遲到勝者回收、幽靈註冊自動清除
• DebugActivity 埠號記憶 + 版面修正

5G Proxy Pro v1.5.0

Reproducible F-Droid build

v1.4.4

Fix: failed DNS lookups negatively cached 3s (degraded 5G no longer stalls all new connections on DNS timeout)
Fix: DNS timeout 2s -> 1s for faster failover
Reliability: handshake thread pool 128 -> 256 (burst traffic can't exhaust it)

v1.4.3

Fix: DNS lookups no longer serialize on a global lock (slow 5G no longer blocks all handshake threads)
Fix: client-closed connections recycled 2s after data flush (CLOSE_WAIT pileup fixed)
Reliability: handshake threads churn fast under heavy parallel connections

v1.4.2

v1.4.2 — 握手執行緒池耗盡修復

問題

5G 網路劣化時 DNS 解析（network.getAllByName）無逾時，最壞可卡 10-30 秒。128 個握手執行緒全被卡住後，新連線被直接拒絕（connection to proxy closed）→ 伺服器看似當掉。

修正

• DNS 解析加 3 秒逾時（共享執行緒池，避免線程洩漏）
• 目標連線逾時 5 秒→3 秒，失敗更快釋放握手執行緒

驗證

• 3 輪 x 150 條並行連線壓力測試：450/450 全部成功，執行緒數穩定 63-65（修復前：128 全滿、新連線全被拒）
• 單次 5MB 下載 0.28s 正常

v1.4.1

v1.4.1 — fd 洩漏修復

修正

• 連線回收（GC）溢位不再洩漏檔案描述符：即使單次掃描超過 128 條超時連線，也會全部確實銷毀，不再有 fd 永久洩漏
• 服務停止時一併銷毀尚未處理的待回收連線（shutdown 路徑補漏）
• epoll 事件容量提升至 512（MAX_EVENTS），應付 5G client 的爆量並行連線

驗證

• 150 條並行連線壓力測試後，128 條 CLOSE_WAIT 連線於 300 秒超時後全部回收（舊版 fd 只升不降）
• 代理功能正常（5MB 下載 ~0.28s）

5G Proxy Pro v1.4.0

v1.4.0 — fixes all findings from F-Droid testing

• Stop now fully closes the SOCKS5 listener — stop-request flag blocks the auto-restart watchdog, no more START_STICKY zombie restarts, native quit closes every listener; port 1080 is fully released after Stop
• LAN-only binding — the listener binds only to LAN interface addresses (Wi-Fi / hotspot / USB tethering) plus loopback for the health check; it can no longer be reached from the cellular interface
• Auth hardening — authentication (RFC 1929) is enabled only when both username and password are non-empty; empty fields no longer match anything
• Battery-optimization dialog — added "Continue Anyway" so starting is never a dead end
• Real status reporting — the service reports its actual state (starting/running/paused/restarting/stopped/failed) to the UI via callback; status line and Refresh no longer guess
• POST_NOTIFICATIONS — now requested at runtime on Android 13+; proxy still runs if denied, with a warning
• Docs — README updated (features, usage, network-usage disclosure); fastlane feature graphic added

Signed APK: 5G-Proxy-Pro-v1.4.0.apk (arm64-v8a + armeabi-v7a, minSdk 26, targetSdk 34)

5G Proxy Pro v1.3.2

v1.3.2 — UDP-in-TCP relay + 協定文件化 + 字串資源化

新增

• UDP-in-TCP relay：自訂 SOCKS5 擴充指令（cmd=0x04），將 UDP datagram 封裝於 TCP 連線傳輸，解決 5G 環境下 UDP 壟斷或遭阻擋的問題（需搭配 5G Proxy Client v1.0.0）
• 協定文件化：README 新增完整協定規格（UDP-in-TCP frame 格式、SOCKS5 擴充流程）
• 字串資源化：UI 字串抽離至 res/values，支援多語言（en / zh-rTW）

檔案

• 5G-Proxy-Pro-v1.3.2.apk（arm64-v8a + armeabi-v7a，已簽署）
• SHA256: 6F735C1ED8BBCFCC4AE7204013002578A7AF56C64365199F4ECE53417C85C888

5G Proxy Pro v1.3.1

v1.3.1 原生崩潰修正

修正

• 修復大量並發連線時的原生崩潰：UDP relay 原本使用 select()/FD_SET，受 FD_SETSIZE(1024) 硬限制。當進程開啟的 fd 超過 1024（例如大量 TCP 連線各佔 2 個 fd）時，FD_SET 會觸發 bionic FORTIFY 檢查並 SIGABRT：
  FORTIFY: FD_SET: file descriptor NNNN >= FD_SETSIZE 1024
• 改用 poll() 管理 fd，無 1024 上限，高 TCP/UDP 流量下更穩定

檔案

• 5G-Proxy-Pro-v1.3.1.apk（arm64-v8a + armeabi-v7a，已簽署）
• SHA256: 35C7284A84B4E3409FDAA2A1E2F657F30AE7A8A78CF2E2748A72CE87187AB847

5G Proxy Pro v1.3.0

v1.3.0 5G IP 切換自動恢復代理

新增

• 電信端切換 5G IP 時自動重建代理連線，不再需要手動「停止代理 → 一鍵開啟」
• 長期監控行動網路變更事件（onLost / 新 Network 物件），偵測到 IP 切換立即自動恢復
• 網路健康檢查（網路能力 + 真實連線測試）連續異常時自動重啟代理，作為無事件通知時的保險

修正

• 代理建立的所有 socket 綁定在啟動時取得的舊網路物件上，電信端切換 IP 後全部連線失效的問題
• 一次性網路請求不再累積註冊 ConnectivityManager callback

使用說明

電信端自動切換 5G IP 時，服務會自動重新取得行動網路並重建代理（前台通知會顯示重建中），無需任何手動操作。

檔案

• 5G-Proxy-Pro-v1.3.0.apk（arm64-v8a + armeabi-v7a，已簽署）
• SHA256: B27DF45DC1C63F7BD19C20E216F0073311C7DC67D127CD809A1D979A9720DE3C