Upgrade core engine to v3.1.6

Author: SamNet-dev

.github/workflows/build-engine.yml

@@ -6,11 +6,11 @@ on:
       telemt_commit:
         description: 'Telemt commit hash to build from'
         required: true
-        default: '6d6cd30'
+        default: 'e11da6d'
       version_tag:
-        description: 'Version tag (e.g. 3.1.2-6d6cd30)'
+        description: 'Version tag (e.g. 3.1.6-e11da6d)'
         required: true
-        default: '3.1.2-6d6cd30'
+        default: '3.1.6-e11da6d'
 
 env:
   REGISTRY: ghcr.io

README.md

@@ -500,20 +500,20 @@ mtproxymax telegram remove              # Remove bot completely
 
 ## 📋 Changelog
 
-### v1.0.0 — Engine v3.1.2
-
-**Engine Upgrade (v3.0.15 → v3.1.2):**
-
-- **Parallel STUN Queries** — STUN subsystem now queries multiple servers in parallel for faster NAT detection
-- **Async ME Pool Init** — Middle-end pools created asynchronously and in parallel, faster startup and recovery
-- **Dead Writer Cleanup** — ME writers in dead state removed immediately, no more lingering connections or deadlocks
-- **Pool Validation** — Strict ME pool validation before accepting client connections, prevents failed handshakes
-- **Pool Observer** — New flap-detection in statistics monitors pool stability
-- **TLS-F Optimization** — TLS fingerprint fetching optimized
-- **ME Probe Parallelized** — Health checks run concurrently instead of serially
-- **Built-in Defaults** — Sensible defaults baked in, `tls_emulation` enabled by default, minimal config needed
-- **Detected IP in Links** — Log output now shows correct detected IP in proxy links
-- **PROXY Protocol Masking** — New `mask_proxy_protocol` option for PROXY protocol support
+### v1.0.0 — Engine v3.1.6
+
+**Engine Upgrade (v3.1.2 → v3.1.6):**
+
+- **Writer Lifecycle Model** — Pool writers now follow Warm → Active → Draining lifecycle with generation-aware safe promotion
+- **Shadow Writers** — Single-endpoint DCs get shadow writers for resilience, with periodic rotation to prevent silent decay
+- **Outage Recovery** — Automatic aggressive reconnect loop when all writers are lost, with backoff and optional quarantine bypass
+- **Adaptive Floor** — Dynamic minimum writer target reduces idle churn while preserving fast recovery under load (enabled by default)
+- **DNS Overrides** — Custom DNS resolution at engine level, hot-reloadable
+- **Upstream Retry + Health** — Upstreams retry 3x with backoff, auto-marked unhealthy after consecutive failures
+- **ME/DC Method Detection** — Engine detects optimal connection method per datacenter
+- **Backpressure Tuning** — Adaptive base/high watermark timeouts for ME routing under load
+- **Metrics Security** — Prometheus endpoint binds to localhost only by default
+- **Per-User Ad-Tag** — Individual ad-tags per user with global fallback
 
 ### v1.0.0 — Per-User Limits + Telegram Bot
 

mtproxymax.sh

@@ -22,8 +22,8 @@ UPSTREAMS_FILE="${INSTALL_DIR}/upstreams.conf"
 BACKUP_DIR="${INSTALL_DIR}/backups"
 CONTAINER_NAME="mtproxymax"
 DOCKER_IMAGE_BASE="mtproxymax-telemt"
-TELEMT_MIN_VERSION="3.1.2"
-TELEMT_COMMIT="6d6cd30"  # Pinned: v3.1.2 — Parallel STUN/ME pools, dead writer cleanup, pool validation, defaults
+TELEMT_MIN_VERSION="3.1.6"
+TELEMT_COMMIT="e11da6d"  # Pinned: v3.1.6 — Writer lifecycle, shadow writers, adaptive floor, upstream health, outage recovery
 GITHUB_REPO="SamNet-dev/MTProxyMax"
 REGISTRY_IMAGE="ghcr.io/samnet-dev/mtproxymax-telemt"