v1.9.15

• HTTP/2 multiplexing روی relay leg (PR #799 از @dazzling-no-more): ALPN از Google edge h2 رو negotiate می‌کنه؛ اگه peer قبول کنه، تمام relay traffic (Apps Script direct، exit-node outer call، full-mode tunnel single ops، full-mode tunnel batches) روی یک TCP/TLS connection با ~۱۰۰ stream همزمان multiplex می‌شه به‌جای pool 8-80 socket. اگر h2 negotiate نشه، fallback خودکار به HTTP/1.1 keep-alive path قبلی. مزیت اصلی: یک Apps Script call کند دیگه head-of-line بقیه‌ی queue روی همان socket رو block نمی‌کنه — مهم‌ترین اثر روی streaming sites (YouTube/googlevideo) و concurrent fan-out (range-parallel downloads). Idempotency-safe retry: RequestSent::{No, Maybe} — No (قبل از send_request موفق) safely retried، Maybe فقط برای متدهای idempotent. Kill switch: "force_http1": true در config.json تمام h2 path رو bypass می‌کنه و دقیقاً behavior pre-PR رو می‌ده. استراتژیک، این architectural fix برای regression #781 / #773 — h2 multiplexing pool tuning مسئله‌ی بسیار کم‌اهمیت می‌کنه. ۱۸۰→۱۹۷ test (+۱۷ test جدید).
• Block QUIC default true (PR #805 از @yyoyoian-pixel): QUIC روی tunnel TCP-based منجر به TCP-over-TCP meltdown (<1 Mbps) می‌شد. مرورگرها با drop UDP/443 خاموش، در ثانیه‌ها به TCP/HTTPS برمی‌گردن — نتیجه: page load و YouTube video load ابتدایی در Full mode به‌طرز محسوسی سریع‌تر. UI toggle در Android Advanced + Desktop checkbox (قبلاً config-only از #213). Android serialization همیشه block_quic رو emit می‌کنه تا default Rust silently override نشه.
• Accessibility: accesskit feature برای eframe فعال شد (PR #819 از @brightening-eyes — drop به نفع #750). screen reader users (NVDA / JAWS / VoiceOver / Orca) حالا کامل می‌تونن از UI استفاده کنن. tested with real screen reader by author.
• GitHub Actions Full tunnel docs (PR #783 از @euvel): ۳ مسیر برای کاربرانی که نمی‌توانن VPS بخرن — cloudflared Quick (zero accounts beyond GitHub، URL موقت)، ngrok (free account، URL موقت)، cloudflared Named (CF domain، URL دایم). در assets/github-actions-tunnel/. هر runner GitHub Actions ۶ ساعت timeout داره — repeatable ولی persistent نه. برای daily traffic سنگین همچنان VPS توصیه می‌شه.
• تست: ۱۹۷ lib + ۳۵ tunnel-node test همه pass.

• HTTP/2 multiplexing on relay leg (PR #799 from @dazzling-no-more): ALPN-negotiates h2 against the Google edge; if the peer agrees, all relay traffic (Apps Script direct, exit-node outer call, full-mode tunnel single ops, full-mode tunnel batches) rides one TCP/TLS connection multiplexing ~100 concurrent streams instead of the legacy 8-80-socket pool. Falls back to the existing HTTP/1.1 keep-alive path automatically when h2 isn't viable. Big win: a slow Apps Script call no longer head-of-line-blocks the rest of the queue on the same socket — most user-visible on streaming sites (YouTube/googlevideo) and concurrent fan-out (range-parallel downloads). Idempotency-safe retry via RequestSent::{No, Maybe} — No (anything before send_request succeeds) is safely retried, Maybe only retries for idempotent methods. Kill switch: "force_http1": true in config.json bypasses the entire h2 path and gives back exactly the pre-PR behaviour. Strategically this is the architectural fix for the perceived-slowness regression in #781 / #773 — h2 multiplexing makes the pool tuning machinery much less load-bearing because one connection serves all requests. 180 → 197 lib tests (+17 covering ALPN selection, sticky disable, RequestSent classification on RST_STREAM, 421 handling, gzip parity, POST body transmission, redirect chain, force_http1 round-trip).
• Block QUIC by default (PR #805 from @yyoyoian-pixel): QUIC over the TCP-based tunnel was causing TCP-over-TCP meltdown (<1 Mbps). With UDP/443 silently dropped, browsers detect the failure and fall back to TCP/HTTPS within seconds — significantly faster initial page and YouTube video load times in Full mode. UI: "Block QUIC" toggle in Android Advanced settings, "Block QUIC (UDP/443)" checkbox in desktop UI (was config-only since #213). Android serialization always emits block_quic so the Rust default can't silently override the user's choice.
• UI accessibility: enabled the accesskit feature on eframe (PR #819 from @brightening-eyes — closes #750). Screen reader users (NVDA / JAWS / VoiceOver / Orca) can now navigate the desktop UI cleanly. Tested with a real screen reader by the contributor.
• GitHub Actions Full tunnel docs (PR #783 from @euvel): 3 paths for users who can't or won't buy a VPS — cloudflared Quick (zero accounts beyond GitHub, temporary URL), ngrok (free account, temporary URL), cloudflared Named (CF domain, permanent URL). Lives in assets/github-actions-tunnel/. Each GitHub Actions runner has a 6-hour timeout — repeatable but not persistent; serious daily traffic should still go VPS.
• Tests: 197 lib + 35 tunnel-node tests passing.

What's Changed

• added accessibility for the ui by @brightening-eyes in #819
• feat: block QUIC by default — faster initial page/video loads in full tunnel mode by @yyoyoian-pixel in #805
• feat: HTTP/2 multiplexing on relay leg with idempotency-safe h1 fallback by @dazzling-no-more in #799
• docs: add GitHub Actions Full tunnel documentation and workflows by @euvel in #783

New Contributors

• @brightening-eyes made their first contribution in #819

Full Changelog: v1.9.13...v1.9.15