diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index cfd95cdb2..d4b42f058 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -118,7 +118,7 @@ jobs:
           cd x-ui/bin
 
           # Download dependencies
-          Xray_URL="https://github.com/XTLS/Xray-core/releases/download/v26.6.27/"
+          Xray_URL="https://github.com/XTLS/Xray-core/releases/download/v26.7.11/"
           if [ "${{ matrix.platform }}" == "amd64" ]; then
             wget -q ${Xray_URL}Xray-linux-64.zip
             unzip Xray-linux-64.zip
@@ -273,7 +273,7 @@ jobs:
           cd x-ui\bin
 
           # Download Xray for Windows
-          $Xray_URL = "https://github.com/XTLS/Xray-core/releases/download/v26.6.27/"
+          $Xray_URL = "https://github.com/XTLS/Xray-core/releases/download/v26.7.11/"
           Invoke-WebRequest -Uri "${Xray_URL}Xray-windows-64.zip" -OutFile "Xray-windows-64.zip"
           Expand-Archive -Path "Xray-windows-64.zip" -DestinationPath .
           Remove-Item "Xray-windows-64.zip"
diff --git a/DockerInit.sh b/DockerInit.sh
index 10a821306..172180ab9 100755
--- a/DockerInit.sh
+++ b/DockerInit.sh
@@ -32,7 +32,7 @@ if [ -z "$MTG_MULTI_VER" ]; then
 fi
 mkdir -p build/bin
 cd build/bin
-curl -sfLRO "https://github.com/XTLS/Xray-core/releases/download/v26.6.27/Xray-linux-${ARCH}.zip"
+curl -sfLRO "https://github.com/XTLS/Xray-core/releases/download/v26.7.11/Xray-linux-${ARCH}.zip"
 unzip "Xray-linux-${ARCH}.zip"
 rm -f "Xray-linux-${ARCH}.zip" geoip.dat geosite.dat
 mv xray "xray-linux-${FNAME}"
diff --git a/docs/content/docs/en/config/transports.mdx b/docs/content/docs/en/config/transports.mdx
index f6d1a1fcf..77ed33cf6 100644
--- a/docs/content/docs/en/config/transports.mdx
+++ b/docs/content/docs/en/config/transports.mdx
@@ -122,7 +122,9 @@ Only valid when the protocol is **Hysteria2**.
 disguise transports that don't carry TLS (like mKCP) or add a second skin on top of
 TLS. Masks are configured per direction:
 
-- **TCP masks** — `fragment`, `sudoku`, `header-custom`.
+- **TCP masks** — `fragment`, `sudoku`, `header-custom`, `xmc` (disguises the
+  stream as Minecraft protocol traffic; requires a password, with optional
+  hostname and player usernames).
 - **UDP masks** — `salamander`, `mkcp-legacy`, `header-custom`, `xdns`, `xicmp`,
   `noise`, `sudoku`, `realm`. (`mkcp-legacy` reproduces the old mKCP header
   obfuscation.)
diff --git a/docs/content/docs/fa/config/transports.mdx b/docs/content/docs/fa/config/transports.mdx
index b112f7d05..c9657a959 100644
--- a/docs/content/docs/fa/config/transports.mdx
+++ b/docs/content/docs/fa/config/transports.mdx
@@ -123,7 +123,9 @@ icon: Network
 انتقال‌هایی را که TLS حمل نمی‌کنند (مانند mKCP) استتار کند یا پوسته‌ای دوم روی TLS
 بیفزاید. ماسک‌ها برای هر جهت پیکربندی می‌شوند:
 
-- **ماسک‌های TCP** — `fragment`، `sudoku`، `header-custom`.
+- **ماسک‌های TCP** — `fragment`، `sudoku`، `header-custom`، `xmc` (ترافیک را به شکل
+  پروتکل Minecraft استتار می‌کند؛ گذرواژه الزامی است و نام میزبان و نام‌های بازیکن
+  اختیاری‌اند).
 - **ماسک‌های UDP** — `salamander`، `mkcp-legacy`، `header-custom`، `xdns`، `xicmp`،
   `noise`، `sudoku`، `realm`. (`mkcp-legacy` همان مبهم‌سازی قدیمی هدر mKCP را
   بازتولید می‌کند.)
diff --git a/docs/content/docs/ru/config/transports.mdx b/docs/content/docs/ru/config/transports.mdx
index 884d82d47..3d67cc9eb 100644
--- a/docs/content/docs/ru/config/transports.mdx
+++ b/docs/content/docs/ru/config/transports.mdx
@@ -125,7 +125,9 @@ HTTPUpgrade — это одноразовый HTTP/1.1 `Upgrade` без фрей
 поэтому он может замаскировать транспорты, не несущие TLS (например, mKCP), или
 добавить вторую оболочку поверх TLS. Маски настраиваются по направлениям:
 
-- **TCP-маски** — `fragment`, `sudoku`, `header-custom`.
+- **TCP-маски** — `fragment`, `sudoku`, `header-custom`, `xmc` (маскирует поток
+  под трафик протокола Minecraft; требуется пароль, имя хоста и имена игроков
+  опциональны).
 - **UDP-маски** — `salamander`, `mkcp-legacy`, `header-custom`, `xdns`, `xicmp`,
   `noise`, `sudoku`, `realm`. (`mkcp-legacy` воспроизводит старую обфускацию
   заголовка mKCP.)
diff --git a/docs/content/docs/zh/config/transports.mdx b/docs/content/docs/zh/config/transports.mdx
index 774717426..a6887cb87 100644
--- a/docs/content/docs/zh/config/transports.mdx
+++ b/docs/content/docs/zh/config/transports.mdx
@@ -117,7 +117,8 @@ Session-ID 字段（`sessionIDPlacement`、`sessionIDKey`、`sessionIDTable`、
 **FinalMask** 在传输方式和安全层**之后**包裹流量，因此它既能伪装那些承载不了 TLS 的
 传输（如 mKCP），也能在 TLS 之上再加一层外壳。掩码按方向分别配置：
 
-- **TCP 掩码** — `fragment`、`sudoku`、`header-custom`。
+- **TCP 掩码** — `fragment`、`sudoku`、`header-custom`、`xmc`（把流量伪装成
+  Minecraft 协议；密码必填，主机名和玩家用户名可选）。
 - **UDP 掩码** — `salamander`、`mkcp-legacy`、`header-custom`、`xdns`、`xicmp`、
   `noise`、`sudoku`、`realm`。（`mkcp-legacy` 重现旧版 mKCP 的头部混淆。）
 - **QUIC 参数** — 拥塞控制（`reno`、`bbr`、`brutal`、`force-brutal`）、Brutal 上/下行
diff --git a/frontend/src/lib/xray/forms/transport/FinalMaskForm.tsx b/frontend/src/lib/xray/forms/transport/FinalMaskForm.tsx
index ce04a2496..7406e59d6 100644
--- a/frontend/src/lib/xray/forms/transport/FinalMaskForm.tsx
+++ b/frontend/src/lib/xray/forms/transport/FinalMaskForm.tsx
@@ -81,6 +81,8 @@ function defaultTcpMaskSettings(type: string): Record<string, unknown> {
       };
     case 'header-custom':
       return { clients: [], servers: [] };
+    case 'xmc':
+      return { hostname: '', usernames: [], password: RandomUtil.randomLowerAndNum(16) };
     default:
       return {};
   }
@@ -294,6 +296,7 @@ function TcpMaskItem({
             { value: 'fragment', label: 'Fragment' },
             { value: 'header-custom', label: 'Header Custom' },
             { value: 'sudoku', label: 'Sudoku' },
+            { value: 'xmc', label: 'XMC (Minecraft)' },
           ]}
         />
       </Form.Item>
@@ -371,6 +374,41 @@ function TcpMaskItem({
               />
             );
           }
+          if (type === 'xmc') {
+            return (
+              <>
+                <Form.Item label="Hostname" name={[fieldName, 'settings', 'hostname']}>
+                  <Input placeholder="Server address mimicked in the handshake" />
+                </Form.Item>
+                <Form.Item
+                  label="Usernames"
+                  name={[fieldName, 'settings', 'usernames']}
+                  extra="Player names offered to probes; core defaults to Dream when empty."
+                >
+                  <Select mode="tags" style={{ width: '100%' }} tokenSeparators={[',']} />
+                </Form.Item>
+                <Form.Item label="Password" required>
+                  <Space.Compact block>
+                    <Form.Item
+                      name={[fieldName, 'settings', 'password']}
+                      noStyle
+                      rules={[{ required: true, message: 'Password is required' }]}
+                    >
+                      <Input placeholder="Obfuscation password" style={{ width: 'calc(100% - 32px)' }} />
+                    </Form.Item>
+                    <Button
+                      icon={<ReloadOutlined />}
+                      aria-label={t('regenerate')}
+                      onClick={() => form.setFieldValue(
+                        [...absolutePath, 'settings', 'password'],
+                        RandomUtil.randomLowerAndNum(16),
+                      )}
+                    />
+                  </Space.Compact>
+                </Form.Item>
+              </>
+            );
+          }
           return null;
         }}
       </Form.Item>
diff --git a/frontend/src/lib/xray/inbound-form-adapter.ts b/frontend/src/lib/xray/inbound-form-adapter.ts
index 56464515f..c34499c70 100644
--- a/frontend/src/lib/xray/inbound-form-adapter.ts
+++ b/frontend/src/lib/xray/inbound-form-adapter.ts
@@ -124,6 +124,10 @@ const NETWORK_SETTINGS_KEY: Record<string, string> = {
 };
 
 function healStreamNetworkKey(stream: Record<string, unknown>): void {
+  if (typeof stream.method === 'string' && stream.method !== '') {
+    stream.network = stream.method;
+  }
+  delete stream.method;
   const network = typeof stream.network === 'string' ? stream.network : '';
   const key = NETWORK_SETTINGS_KEY[network];
   if (!key) return;
diff --git a/frontend/src/lib/xray/outbound-form-adapter.ts b/frontend/src/lib/xray/outbound-form-adapter.ts
index 194404475..d72049b9c 100644
--- a/frontend/src/lib/xray/outbound-form-adapter.ts
+++ b/frontend/src/lib/xray/outbound-form-adapter.ts
@@ -107,7 +107,7 @@ function vmessFromWire(raw: Raw): VmessOutboundFormSettings {
     id: asString(u.id),
     security: ((): VmessOutboundFormSettings['security'] => {
       const s = asString(u.security);
-      const allowed = ['aes-128-gcm', 'chacha20-poly1305', 'auto', 'none', 'zero'];
+      const allowed = ['aes-128-gcm', 'chacha20-poly1305', 'auto'];
       return (allowed.includes(s) ? s : 'auto') as VmessOutboundFormSettings['security'];
     })(),
   };
@@ -391,6 +391,10 @@ const XMUX_DEFAULTS = XHttpXmuxSchema.parse({});
 
 function hydrateStreamForm(stream: Raw): OutboundStreamFormValues {
   const next = { ...stream };
+  if (typeof next.method === 'string' && next.method !== '') {
+    next.network = next.method;
+  }
+  delete next.method;
   const xh = next.xhttpSettings;
   if (xh && typeof xh === 'object' && !Array.isArray(xh)) {
     const xhttp = { ...(xh as Raw) };
diff --git a/frontend/src/lib/xray/outbound-link-parser.ts b/frontend/src/lib/xray/outbound-link-parser.ts
index e396f7fcc..644efe39d 100644
--- a/frontend/src/lib/xray/outbound-link-parser.ts
+++ b/frontend/src/lib/xray/outbound-link-parser.ts
@@ -360,6 +360,8 @@ export function parseVmessLink(link: string): Raw | null {
     }
 
     const port = Number(json.port) || 443;
+    const rawScy = (json.scy as string) || 'auto';
+    const userSecurity = rawScy === 'none' || rawScy === 'zero' ? 'auto' : rawScy;
     return {
       protocol: 'vmess',
       tag: typeof json.ps === 'string' ? json.ps : '',
@@ -367,7 +369,7 @@ export function parseVmessLink(link: string): Raw | null {
         vnext: [{
           address: json.add ?? '',
           port,
-          users: [{ id: json.id ?? '', security: (json.scy as string) || 'auto' }],
+          users: [{ id: json.id ?? '', security: userSecurity }],
         }],
       },
       streamSettings: stream,
diff --git a/frontend/src/pages/clients/ClientFormModal.tsx b/frontend/src/pages/clients/ClientFormModal.tsx
index daf5a5ccd..f3314f499 100644
--- a/frontend/src/pages/clients/ClientFormModal.tsx
+++ b/frontend/src/pages/clients/ClientFormModal.tsx
@@ -36,7 +36,7 @@ import { useFail2banStatusQuery, getLimitIpNotice } from '@/api/queries/useFail2
 import { ClientFormSchema, ClientCreateFormSchema, type ClientFormValues } from '@/schemas/client';
 
 const FLOW_OPTIONS = Object.values(TLS_FLOW_CONTROL);
-const VMESS_SECURITY_OPTIONS = ['auto', 'aes-128-gcm', 'chacha20-poly1305', 'none', 'zero'] as const;
+const VMESS_SECURITY_OPTIONS = ['auto', 'aes-128-gcm', 'chacha20-poly1305'] as const;
 
 const MULTI_CLIENT_PROTOCOLS = new Set([
   'shadowsocks', 'vless', 'vmess', 'trojan', 'hysteria', 'wireguard', 'mtproto',
@@ -217,7 +217,9 @@ export default function ClientFormModal({
         password: client.password || '',
         auth: client.auth || '',
         flow: client.flow || '',
-        security: client.security || 'auto',
+        security: !client.security || client.security === 'none' || client.security === 'zero'
+          ? 'auto'
+          : client.security,
         reverseTag: client.reverse?.tag || '',
         totalGB: bytesToGB(client.totalGB || 0),
         reset: Number(client.reset) || 0,
diff --git a/frontend/src/pages/inbounds/form/security/reality.tsx b/frontend/src/pages/inbounds/form/security/reality.tsx
index 063fba69d..5476dbf09 100644
--- a/frontend/src/pages/inbounds/form/security/reality.tsx
+++ b/frontend/src/pages/inbounds/form/security/reality.tsx
@@ -128,7 +128,7 @@ export default function RealityForm({
         name={['streamSettings', 'realitySettings', 'minClientVer']}
         label={t('pages.inbounds.form.minClientVer')}
       >
-        <Input placeholder="25.9.11" />
+        <Input placeholder="26.3.27" />
       </FormField>
       <FormField
         name={['streamSettings', 'realitySettings', 'maxClientVer']}
diff --git a/frontend/src/schemas/primitives/options.ts b/frontend/src/schemas/primitives/options.ts
index bfd51ecbe..e14deb938 100644
--- a/frontend/src/schemas/primitives/options.ts
+++ b/frontend/src/schemas/primitives/options.ts
@@ -30,8 +30,6 @@ export const USERS_SECURITY = Object.freeze({
   AES_128_GCM: 'aes-128-gcm',
   CHACHA20_POLY1305: 'chacha20-poly1305',
   AUTO: 'auto',
-  NONE: 'none',
-  ZERO: 'zero',
 });
 
 export const MODE_OPTION = Object.freeze({
diff --git a/frontend/src/schemas/protocols/shared/vmess.ts b/frontend/src/schemas/protocols/shared/vmess.ts
index 1e273455b..6a56d4af3 100644
--- a/frontend/src/schemas/protocols/shared/vmess.ts
+++ b/frontend/src/schemas/protocols/shared/vmess.ts
@@ -4,16 +4,16 @@ const VmessSecurityEnum = z.enum([
   'aes-128-gcm',
   'chacha20-poly1305',
   'auto',
-  'none',
-  'zero',
 ]);
 
 // Legacy rows persisted `security: ""` (especially on VMess inbounds
-// created before the enum was nailed down). Preprocess maps the empty
-// string back to the documented default so existing data parses cleanly
-// — subsequent writes serialize the normalized value.
+// created before the enum was nailed down), and rows predating xray-core
+// v26.7.11 may still hold the removed "none"/"zero" values that the core
+// now treats as "auto". Preprocess maps all of them to the documented
+// default so existing data parses cleanly — subsequent writes serialize
+// the normalized value.
 export const VmessSecuritySchema = z.preprocess(
-  (val) => (val === '' ? 'auto' : val),
+  (val) => (val === '' || val === 'none' || val === 'zero' ? 'auto' : val),
   VmessSecurityEnum,
 );
 export type VmessSecurity = z.infer<typeof VmessSecurityEnum>;
diff --git a/frontend/src/schemas/protocols/stream/finalmask.ts b/frontend/src/schemas/protocols/stream/finalmask.ts
index 09aedca6a..10f0b25d0 100644
--- a/frontend/src/schemas/protocols/stream/finalmask.ts
+++ b/frontend/src/schemas/protocols/stream/finalmask.ts
@@ -5,12 +5,12 @@ import { z } from 'zod';
 // plus optional QUIC tuning. The `settings` sub-object is polymorphic on
 // `type`; we model the wire-faithful shape with a permissive
 // record-of-unknown for `settings` and leave per-type tightening to
-// Step 6 — there are 8 UDP mask types plus 3 TCP mask types, each with
+// Step 6 — there are 8 UDP mask types plus 4 TCP mask types, each with
 // distinct setting fields, and modeling them all as discriminated unions
 // here would dwarf the rest of the stream module without buying anything
 // the safety net doesn't already cover.
 
-export const TcpMaskTypeSchema = z.enum(['fragment', 'sudoku', 'header-custom']);
+export const TcpMaskTypeSchema = z.enum(['fragment', 'sudoku', 'header-custom', 'xmc']);
 export type TcpMaskType = z.infer<typeof TcpMaskTypeSchema>;
 
 export const TcpMaskSchema = z.object({
diff --git a/frontend/src/schemas/protocols/stream/index.ts b/frontend/src/schemas/protocols/stream/index.ts
index 0906561f3..dc6afb7ae 100644
--- a/frontend/src/schemas/protocols/stream/index.ts
+++ b/frontend/src/schemas/protocols/stream/index.ts
@@ -52,10 +52,28 @@ const TransportNetworkSettingsSchema = z.discriminatedUnion('network', [
 // mode. The transportless branch accepts that shape (network absent), while a
 // present-but-invalid network still fails both branches so a typo can't slip
 // through. `network: never().optional()` reads as "this key must be absent".
-export const NetworkSettingsSchema = z.union([
-  TransportNetworkSettingsSchema,
-  z.object({ network: z.never().optional() }),
-]);
+//
+// The preprocess folds `method` — xray-core v26.7.11's preferred alias for
+// `network`, which wins over `network` when both are present — back into the
+// panel-canonical `network` key, so imported/pasted configs keyed on the
+// alias don't silently match the transportless branch and lose their
+// transport.
+export const NetworkSettingsSchema = z.preprocess(
+  (val) => {
+    if (val && typeof val === 'object' && 'method' in val) {
+      const { method, ...rest } = val as Record<string, unknown>;
+      if (typeof method === 'string' && method !== '') {
+        return { ...rest, network: method };
+      }
+      return rest;
+    }
+    return val;
+  },
+  z.union([
+    TransportNetworkSettingsSchema,
+    z.object({ network: z.never().optional() }),
+  ]),
+);
 export type NetworkSettings = z.infer<typeof NetworkSettingsSchema>;
 
 // Orthogonal extras that ride alongside the network and security branches.
diff --git a/frontend/src/test/__snapshots__/finalmask.test.ts.snap b/frontend/src/test/__snapshots__/finalmask.test.ts.snap
index d962518f9..7e3ac478a 100644
--- a/frontend/src/test/__snapshots__/finalmask.test.ts.snap
+++ b/frontend/src/test/__snapshots__/finalmask.test.ts.snap
@@ -167,6 +167,16 @@ exports[`FinalMaskStreamSettingsSchema fixtures > parses tcp-mask byte-stably 1`
       },
       "type": "header-custom",
     },
+    {
+      "settings": {
+        "hostname": "mc.example.com",
+        "password": "s3cr3t",
+        "usernames": [
+          "Dream",
+        ],
+      },
+      "type": "xmc",
+    },
   ],
   "udp": [],
 }
diff --git a/frontend/src/test/golden/fixtures/finalmask/tcp-mask.json b/frontend/src/test/golden/fixtures/finalmask/tcp-mask.json
index 18ab31114..a535d9394 100644
--- a/frontend/src/test/golden/fixtures/finalmask/tcp-mask.json
+++ b/frontend/src/test/golden/fixtures/finalmask/tcp-mask.json
@@ -25,6 +25,14 @@
         ],
         "errors": []
       }
+    },
+    {
+      "type": "xmc",
+      "settings": {
+        "hostname": "mc.example.com",
+        "usernames": ["Dream"],
+        "password": "s3cr3t"
+      }
     }
   ]
 }
diff --git a/frontend/src/test/stream.test.ts b/frontend/src/test/stream.test.ts
index 7621a18cd..fbdc919df 100644
--- a/frontend/src/test/stream.test.ts
+++ b/frontend/src/test/stream.test.ts
@@ -24,3 +24,16 @@ describe('NetworkSettingsSchema fixtures', () => {
     });
   }
 });
+
+describe('NetworkSettingsSchema method alias', () => {
+  it('folds xray-core v26.7.11 method alias back into network', () => {
+    const parsed = NetworkSettingsSchema.parse({ method: 'ws', wsSettings: {} });
+    expect((parsed as { network?: string }).network).toBe('ws');
+    expect((parsed as Record<string, unknown>).method).toBeUndefined();
+  });
+
+  it('prefers method over network when both are present', () => {
+    const parsed = NetworkSettingsSchema.parse({ method: 'grpc', network: 'tcp', grpcSettings: {} });
+    expect((parsed as { network?: string }).network).toBe('grpc');
+  });
+});
diff --git a/go.mod b/go.mod
index ac8b4ed1a..e5547bf2f 100644
--- a/go.mod
+++ b/go.mod
@@ -21,10 +21,10 @@ require (
 	github.com/skip2/go-qrcode v0.0.0-20200617195104-da1b6568686e
 	github.com/valyala/fasthttp v1.72.0
 	github.com/xlzd/gotp v0.1.0
-	github.com/xtls/xray-core v1.260327.1-0.20260627131803-45cf2898ab12
+	github.com/xtls/xray-core v1.260327.1-0.20260711155151-50231eaff98c
 	go.uber.org/atomic v1.11.0
-	golang.org/x/crypto v0.53.0
-	golang.org/x/sys v0.46.0
+	golang.org/x/crypto v0.54.0
+	golang.org/x/sys v0.47.0
 	golang.org/x/text v0.40.0
 	google.golang.org/grpc v1.82.0
 	gopkg.in/natefinch/lumberjack.v2 v2.2.1
@@ -64,7 +64,7 @@ require (
 	github.com/json-iterator/go v1.1.12 // indirect
 	github.com/juju/ratelimit v1.0.2 // indirect
 	github.com/klauspost/compress v1.19.0
-	github.com/klauspost/cpuid/v2 v2.3.0 // indirect
+	github.com/klauspost/cpuid/v2 v2.4.0 // indirect
 	github.com/leodido/go-urn v1.4.0 // indirect
 	github.com/lufia/plan9stats v0.0.0-20260330125221-c963978e514e // indirect
 	github.com/mattn/go-isatty v0.0.22 // indirect
@@ -77,7 +77,7 @@ require (
 	github.com/pion/logging v0.2.4 // indirect
 	github.com/pion/stun/v3 v3.1.6 // indirect
 	github.com/pion/transport/v4 v4.0.2 // indirect
-	github.com/pires/go-proxyproto v0.12.0 // indirect
+	github.com/pires/go-proxyproto v0.15.0 // indirect
 	github.com/power-devops/perfstat v0.0.0-20240221224432-82ca36839d55 // indirect
 	github.com/quic-go/qpack v0.6.0 // indirect
 	github.com/quic-go/quic-go v0.60.0 // indirect
@@ -101,7 +101,7 @@ require (
 	golang.org/x/arch v0.28.0 // indirect
 	golang.org/x/exp v0.0.0-20260611194520-c48552f49976 // indirect
 	golang.org/x/mod v0.37.0 // indirect
-	golang.org/x/net v0.56.0
+	golang.org/x/net v0.57.0
 	golang.org/x/sync v0.22.0 // indirect
 	golang.org/x/time v0.15.0 // indirect
 	golang.org/x/tools v0.47.0 // indirect
diff --git a/go.sum b/go.sum
index 941119475..916cbde9f 100644
--- a/go.sum
+++ b/go.sum
@@ -117,8 +117,8 @@ github.com/juju/ratelimit v1.0.2 h1:sRxmtRiajbvrcLQT7S+JbqU0ntsb9W2yhSdNN8tWfaI=
 github.com/juju/ratelimit v1.0.2/go.mod h1:qapgC/Gy+xNh9UxzV13HGGl/6UXNN+ct+vwSgWNm/qk=
 github.com/klauspost/compress v1.19.0 h1:sXLILfc9jV2QYWkzFOPWStmcUVH2RHEB1JCdY2oVvCQ=
 github.com/klauspost/compress v1.19.0/go.mod h1:cwPg85FWrGar70rWktvGQj8/hthj3wpl0PGDogxkrSQ=
-github.com/klauspost/cpuid/v2 v2.3.0 h1:S4CRMLnYUhGeDFDqkGriYKdfoFlDnMtqTiI/sFzhA9Y=
-github.com/klauspost/cpuid/v2 v2.3.0/go.mod h1:hqwkgyIinND0mEev00jJYCxPNVRVXFQeu1XKlok6oO0=
+github.com/klauspost/cpuid/v2 v2.4.0 h1:S6Hrbc7+ywsr0r+RLapfGBHfyefhCTwEh3A0tV913Dw=
+github.com/klauspost/cpuid/v2 v2.4.0/go.mod h1:19jmZ9mjzoF//ddRSUsv0zfBTJWh3QJh9FNxZTMrGxU=
 github.com/kr/pretty v0.3.1 h1:flRD4NNwYAUpkphVc1HcthR4KEIFJ65n8Mw5qdRn3LE=
 github.com/kr/pretty v0.3.1/go.mod h1:hoEshYVHaxMs3cyo3Yncou5ZscifuDolrwPKZanG3xk=
 github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=
@@ -156,8 +156,8 @@ github.com/pion/stun/v3 v3.1.6 h1:WnhsD0eHCiwCfKNkVx0VJJwr2Y3eV4Ueih3KJ+dfZy8=
 github.com/pion/stun/v3 v3.1.6/go.mod h1:zRUghXSQU32Lx5orJsz3uYMkIihweXb3mu5gIns02fs=
 github.com/pion/transport/v4 v4.0.2 h1:ifYlPqNwsy6aKQ9y8yzxXlHae5431ZrH2avkD/Rn6Tk=
 github.com/pion/transport/v4 v4.0.2/go.mod h1:06hFI+jCFcok2X2MekVufNZ/uzNZXivGBPfviSVcjgM=
-github.com/pires/go-proxyproto v0.12.0 h1:TTCxD66dU898tahivkqc3hoceZp7P44FnorWyo9d5vM=
-github.com/pires/go-proxyproto v0.12.0/go.mod h1:qUvfqUMEoX7T8g0q7TQLDnhMjdTrxnG0hvpMn+7ePNI=
+github.com/pires/go-proxyproto v0.15.0 h1:dTshmNbFm/D+0+sbrxUuddPOZ5Y0B7c5NhtsBkm6LqI=
+github.com/pires/go-proxyproto v0.15.0/go.mod h1:OXsCrKwrK2tXS9YrI5tkHx5xaQlO8FH3lFW76orFh24=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/power-devops/perfstat v0.0.0-20240221224432-82ca36839d55 h1:o4JXh1EVt9k/+g42oCprj/FisM4qX9L3sZB3upGN2ZU=
@@ -218,8 +218,8 @@ github.com/xlzd/gotp v0.1.0 h1:37blvlKCh38s+fkem+fFh7sMnceltoIEBYTVXyoa5Po=
 github.com/xlzd/gotp v0.1.0/go.mod h1:ndLJ3JKzi3xLmUProq4LLxCuECL93dG9WASNLpHz8qg=
 github.com/xtls/reality v0.0.0-20260322125925-9234c772ba8f h1:iy2JRioxmUpoJ3SzbFPyTxHZMbR/rSHP7dOOgYaq1O8=
 github.com/xtls/reality v0.0.0-20260322125925-9234c772ba8f/go.mod h1:DsJblcWDGt76+FVqBVwbwRhxyyNJsGV48gJLch0OOWI=
-github.com/xtls/xray-core v1.260327.1-0.20260627131803-45cf2898ab12 h1:0RZBYuLmkxxlMrSsCNRrdNWHhW5zHTfkC2vAknzZ5P4=
-github.com/xtls/xray-core v1.260327.1-0.20260627131803-45cf2898ab12/go.mod h1:5J11wfaLGhI6HNOi90zVI6E87c1ykA8grPfUeHZYbhA=
+github.com/xtls/xray-core v1.260327.1-0.20260711155151-50231eaff98c h1:SbB1ez0bqZllbzaVj0PC+Vje3dRA8m/7jW1ussjDSgM=
+github.com/xtls/xray-core v1.260327.1-0.20260711155151-50231eaff98c/go.mod h1:Jts8yHqPCpvsdL5CW5xMd8H9d2fkg1cILeBNqEwRXNw=
 github.com/xyproto/randomstring v1.0.5 h1:YtlWPoRdgMu3NZtP45drfy1GKoojuR7hmRcnhZqKjWU=
 github.com/xyproto/randomstring v1.0.5/go.mod h1:rgmS5DeNXLivK7YprL0pY+lTuhNQW3iGxZ18UQApw/E=
 github.com/yusufpapurcu/wmi v1.2.4 h1:zFUKzehAFReQwLys1b/iSMl+JQGSCSjtVqQn9bBrPo0=
@@ -248,14 +248,14 @@ go4.org/netipx v0.0.0-20231129151722-fdeea329fbba h1:0b9z3AuHCjxk0x/opv64kcgZLBs
 go4.org/netipx v0.0.0-20231129151722-fdeea329fbba/go.mod h1:PLyyIXexvUFg3Owu6p/WfdlivPbZJsZdgWZlrGope/Y=
 golang.org/x/arch v0.28.0 h1:wVwVdqsTuUbJvhYVCspQYwZXHNYeLSoZnmHD+ggddpQ=
 golang.org/x/arch v0.28.0/go.mod h1:0X+GdSIP+kL5wPmpK7sdkEVTt2XoYP0cSjQSbZBwOi8=
-golang.org/x/crypto v0.53.0 h1:QZ4Muo8THX6CizN2vPPd5fBGHyogrdK9fG4wLPFUsto=
-golang.org/x/crypto v0.53.0/go.mod h1:DNLU434OwVakk9PzuwV8w62mAJpRJL3vsgcfp4Qnsio=
+golang.org/x/crypto v0.54.0 h1:YLIA59K4fiNzHzjnZt2tUJQjQtUWfWbeHBqKtk3eScw=
+golang.org/x/crypto v0.54.0/go.mod h1:KWL8ny2AZdGR2cWmzeHrp2azQPGogOv+HeQaVEXC2dk=
 golang.org/x/exp v0.0.0-20260611194520-c48552f49976 h1:X8Hz2ImujgbmetVuW+w2YkyZChE3cBpZi2P158rTG9M=
 golang.org/x/exp v0.0.0-20260611194520-c48552f49976/go.mod h1:vnf4pv9iKZXY58sQE1L86zmNWJ4159e1RkcWiLCkeEY=
 golang.org/x/mod v0.37.0 h1:vF1DjpVEshcIqoEaauuHebaLk1O1forxjxBaVn884JQ=
 golang.org/x/mod v0.37.0/go.mod h1:m8S8VeM9r4dzDwjrKO0a1sZP3YjeMamRRlD+fmR2Q/0=
-golang.org/x/net v0.56.0 h1:Rw8j/hFzGvJUZwNBXnAtf5sVDVt+65SK2C7IxCxZt5o=
-golang.org/x/net v0.56.0/go.mod h1:D3Ku6r+V6JROoZK144D2XfMHFcMq/0zSfLelVTCFKec=
+golang.org/x/net v0.57.0 h1:K5+3DljvIuDG9/Jv9rvyMywYNFCQ9RSUY6OOTTkT+tE=
+golang.org/x/net v0.57.0/go.mod h1:KpXc8iv+r3XplLAG/f7Jsf9RPszJzdR0f58q9vGOuEU=
 golang.org/x/sync v0.22.0 h1:SZjpbeLmrCk4xhRSZFNZW5gFUeCeFgjekvI/+gfScek=
 golang.org/x/sync v0.22.0/go.mod h1:9xrNwdLfx4jkKbNva9FpL6vEN7evnE43NNNJQ2LF3+0=
 golang.org/x/sys v0.0.0-20190916202348-b4ddaad3f8a3/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
@@ -263,8 +263,8 @@ golang.org/x/sys v0.0.0-20201204225414-ed752295db88/go.mod h1:h1NjWce9XRLGQEsW7w
 golang.org/x/sys v0.1.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.2.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.10.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.46.0 h1:noSf2Fq6F8DBgS+LysIkx7rIExoNHJsxOAtPp4rthXw=
-golang.org/x/sys v0.46.0/go.mod h1:4GL1E5IUh+htKOUEOaiffhrAeqysfVGipDYzABqnCmw=
+golang.org/x/sys v0.47.0 h1:o7XGOvZQCADBQQ4Y7VNq2dRWQR7JmOUW8Kxx4ZsNgWs=
+golang.org/x/sys v0.47.0/go.mod h1:4GL1E5IUh+htKOUEOaiffhrAeqysfVGipDYzABqnCmw=
 golang.org/x/text v0.40.0 h1:Ub2Z6/xjgF1WrYQz2nuITOEegKFtiIy+rieRJ5lHZKs=
 golang.org/x/text v0.40.0/go.mod h1:hpnzDAfGV753zIKo+wk3u1bVKCGPbrnF7+7LBF/UHVY=
 golang.org/x/time v0.15.0 h1:bbrp8t3bGUeFOx08pvsMYRTCVSMk89u4tKbNOZbp88U=
diff --git a/internal/database/db.go b/internal/database/db.go
index 3e09ec518..403202c87 100644
--- a/internal/database/db.go
+++ b/internal/database/db.go
@@ -121,6 +121,12 @@ func initModels() error {
 	if err := migrateLegacySocksInboundsToMixed(); err != nil {
 		return err
 	}
+	if err := migrateShadowsocksRemovedCiphers(); err != nil {
+		return err
+	}
+	if err := migrateVmessRemovedSecurities(); err != nil {
+		return err
+	}
 	if IsPostgres() {
 		if err := resyncPostgresSequences(db, models); err != nil {
 			log.Printf("Error resyncing postgres sequences: %v", err)
@@ -754,6 +760,125 @@ func migrateLegacySocksInboundsToMixed() error {
 	return nil
 }
 
+// migrateShadowsocksRemovedCiphers rewrites shadowsocks inbounds still using
+// the "none"/"plain" ciphers that xray-core v26.7.11 removed; one such row
+// makes the whole generated config unbuildable and keeps xray from starting.
+func migrateShadowsocksRemovedCiphers() error {
+	var inbounds []model.Inbound
+	if err := db.Where("protocol = ?", model.Shadowsocks).Find(&inbounds).Error; err != nil {
+		return err
+	}
+	migrated := int64(0)
+	for _, inbound := range inbounds {
+		if strings.TrimSpace(inbound.Settings) == "" {
+			continue
+		}
+		var settings map[string]any
+		if err := json.Unmarshal([]byte(inbound.Settings), &settings); err != nil {
+			continue
+		}
+		changed := false
+		if method, _ := settings["method"].(string); method != "" {
+			if replacement, removed := model.ReplaceRemovedShadowsocksCipher(method); removed {
+				settings["method"] = replacement
+				changed = true
+			}
+		}
+		if clients, ok := settings["clients"].([]any); ok {
+			for i := range clients {
+				cm, ok := clients[i].(map[string]any)
+				if !ok {
+					continue
+				}
+				method, _ := cm["method"].(string)
+				if replacement, removed := model.ReplaceRemovedShadowsocksCipher(method); removed {
+					cm["method"] = replacement
+					clients[i] = cm
+					changed = true
+				}
+			}
+		}
+		if !changed {
+			continue
+		}
+		newSettings, err := json.MarshalIndent(settings, "", "  ")
+		if err != nil {
+			log.Printf("migrateShadowsocksRemovedCiphers: skip inbound %d (marshal failed): %v", inbound.Id, err)
+			continue
+		}
+		if err := db.Model(&model.Inbound{}).Where("id = ?", inbound.Id).
+			Update("settings", string(newSettings)).Error; err != nil {
+			return err
+		}
+		migrated++
+	}
+	if migrated > 0 {
+		log.Printf("Rewrote removed shadowsocks cipher on %d inbound(s)", migrated)
+	}
+	return nil
+}
+
+// migrateVmessRemovedSecurities rewrites the vmess "none"/"zero" security
+// values that xray-core v26.7.11 removed to "auto" (what the core now treats
+// them as), on both the clients column and each vmess inbound's settings.
+func migrateVmessRemovedSecurities() error {
+	res := db.Exec("UPDATE clients SET security = 'auto' WHERE security IN ('none', 'zero')")
+	if res.Error != nil {
+		log.Printf("Error migrating removed vmess security values on clients: %v", res.Error)
+		return res.Error
+	}
+	if res.RowsAffected > 0 {
+		log.Printf("Migrated %d client(s) off removed vmess security values", res.RowsAffected)
+	}
+	var inbounds []model.Inbound
+	if err := db.Where("protocol = ?", model.VMESS).Find(&inbounds).Error; err != nil {
+		return err
+	}
+	migrated := int64(0)
+	for _, inbound := range inbounds {
+		if strings.TrimSpace(inbound.Settings) == "" {
+			continue
+		}
+		var settings map[string]any
+		if err := json.Unmarshal([]byte(inbound.Settings), &settings); err != nil {
+			continue
+		}
+		clients, ok := settings["clients"].([]any)
+		if !ok {
+			continue
+		}
+		changed := false
+		for i := range clients {
+			cm, ok := clients[i].(map[string]any)
+			if !ok {
+				continue
+			}
+			if security, _ := cm["security"].(string); security == "none" || security == "zero" {
+				cm["security"] = "auto"
+				clients[i] = cm
+				changed = true
+			}
+		}
+		if !changed {
+			continue
+		}
+		newSettings, err := json.MarshalIndent(settings, "", "  ")
+		if err != nil {
+			log.Printf("migrateVmessRemovedSecurities: skip inbound %d (marshal failed): %v", inbound.Id, err)
+			continue
+		}
+		if err := db.Model(&model.Inbound{}).Where("id = ?", inbound.Id).
+			Update("settings", string(newSettings)).Error; err != nil {
+			return err
+		}
+		migrated++
+	}
+	if migrated > 0 {
+		log.Printf("Rewrote removed vmess security values on %d inbound(s)", migrated)
+	}
+	return nil
+}
+
 // normalizeInboundSubSortIndex lifts sub_sort_index values below the 1-based
 // minimum (rows written by builds that defaulted the column to 0, or by nodes
 // predating the field) so they cannot sort ahead of explicitly ranked inbounds.
diff --git a/internal/database/model/model.go b/internal/database/model/model.go
index ca02a9ac1..773d0c214 100644
--- a/internal/database/model/model.go
+++ b/internal/database/model/model.go
@@ -442,8 +442,23 @@ func StripVlessInboundEncryption(settings string) (string, bool) {
 	return string(out), true
 }
 
-// HealShadowsocksClientMethods normalises the per-client `method` field
-// on a shadowsocks inbound's settings JSON before it leaves for xray-core:
+// ReplaceRemovedShadowsocksCipher maps ciphers that xray-core v26.7.11
+// deleted ("none"/"plain" make the whole config fail with "unknown cipher
+// method") to a still-supported replacement. Returns the replacement and
+// true when the given method is one of the removed ciphers.
+func ReplaceRemovedShadowsocksCipher(method string) (string, bool) {
+	switch method {
+	case "none", "plain":
+		return "chacha20-ietf-poly1305", true
+	}
+	return method, false
+}
+
+// HealShadowsocksClientMethods normalises the `method` fields on a
+// shadowsocks inbound's settings JSON before it leaves for xray-core:
+//   - Ciphers removed upstream (none/plain): rewritten via
+//     ReplaceRemovedShadowsocksCipher so one legacy row cannot prevent
+//     xray from starting.
 //   - Legacy ciphers (aes-*, chacha20-*): every client must carry a
 //     per-user `method` matching the inbound's top-level method, otherwise
 //     xray fails with "unsupported cipher method:".
@@ -462,12 +477,24 @@ func HealShadowsocksClientMethods(settings string) (string, bool) {
 		return settings, false
 	}
 	method, _ := parsed["method"].(string)
+	changed := false
+	if replacement, removed := ReplaceRemovedShadowsocksCipher(method); removed {
+		method = replacement
+		parsed["method"] = method
+		changed = true
+	}
 	clients, ok := parsed["clients"].([]any)
 	if !ok {
-		return settings, false
+		if !changed {
+			return settings, false
+		}
+		out, err := json.MarshalIndent(parsed, "", "  ")
+		if err != nil {
+			return settings, false
+		}
+		return string(out), true
 	}
 	is2022 := strings.HasPrefix(method, "2022-blake3-")
-	changed := false
 	for i := range clients {
 		cm, ok := clients[i].(map[string]any)
 		if !ok {
diff --git a/internal/database/model/model_shadowsocks_removed_test.go b/internal/database/model/model_shadowsocks_removed_test.go
new file mode 100644
index 000000000..dadb93aca
--- /dev/null
+++ b/internal/database/model/model_shadowsocks_removed_test.go
@@ -0,0 +1,43 @@
+package model
+
+import (
+	"encoding/json"
+	"testing"
+)
+
+// TestHealShadowsocksClientMethods_RewritesRemovedCipher covers the last-gate
+// build-time heal for xray-core v26.7.11's removed "none"/"plain" ciphers: a
+// row that survives to config generation (restored backup, direct DB edit)
+// must be rewritten to a supported cipher on both the inbound method and its
+// clients so one such inbound cannot keep xray from starting.
+func TestHealShadowsocksClientMethods_RewritesRemovedCipher(t *testing.T) {
+	settings := `{"method": "plain", "clients": [{"email": "a@x", "password": "p", "method": "plain"}]}`
+	healed, ok := HealShadowsocksClientMethods(settings)
+	if !ok {
+		t.Fatal("expected heal to report a change for a removed cipher")
+	}
+	var parsed struct {
+		Method  string           `json:"method"`
+		Clients []map[string]any `json:"clients"`
+	}
+	if err := json.Unmarshal([]byte(healed), &parsed); err != nil {
+		t.Fatalf("parse healed settings: %v", err)
+	}
+	if parsed.Method != "chacha20-ietf-poly1305" {
+		t.Fatalf("expected inbound method rewritten to a supported cipher, got %q", parsed.Method)
+	}
+	if parsed.Clients[0]["method"] != "chacha20-ietf-poly1305" {
+		t.Fatalf("expected client method to match the healed cipher, got %v", parsed.Clients[0]["method"])
+	}
+}
+
+func TestReplaceRemovedShadowsocksCipher(t *testing.T) {
+	for _, method := range []string{"none", "plain"} {
+		if got, removed := ReplaceRemovedShadowsocksCipher(method); !removed || got != "chacha20-ietf-poly1305" {
+			t.Fatalf("ReplaceRemovedShadowsocksCipher(%q) = (%q, %v), want a supported replacement", method, got, removed)
+		}
+	}
+	if got, removed := ReplaceRemovedShadowsocksCipher("aes-256-gcm"); removed || got != "aes-256-gcm" {
+		t.Fatalf("ReplaceRemovedShadowsocksCipher(aes-256-gcm) = (%q, %v), want it left untouched", got, removed)
+	}
+}
diff --git a/internal/database/removed_cipher_migration_test.go b/internal/database/removed_cipher_migration_test.go
new file mode 100644
index 000000000..de4603917
--- /dev/null
+++ b/internal/database/removed_cipher_migration_test.go
@@ -0,0 +1,117 @@
+package database
+
+import (
+	"encoding/json"
+	"path/filepath"
+	"testing"
+
+	"github.com/mhsanaei/3x-ui/v3/internal/database/model"
+)
+
+// TestMigrateShadowsocksRemovedCiphers_RewritesNoneAndPlain covers the
+// xray-core v26.7.11 removal of the shadowsocks "none"/"plain" ciphers: one
+// such row makes the generated config unbuildable, so startup must rewrite
+// both the inbound method and any per-client method to a supported cipher and
+// leave a valid inbound untouched.
+func TestMigrateShadowsocksRemovedCiphers_RewritesNoneAndPlain(t *testing.T) {
+	dbDir := t.TempDir()
+	t.Setenv("XUI_DB_FOLDER", dbDir)
+	if err := InitDB(filepath.Join(dbDir, "x-ui.db")); err != nil {
+		t.Fatalf("InitDB failed: %v", err)
+	}
+	t.Cleanup(func() { _ = CloseDB() })
+
+	removed := `{"method": "none", "clients": [{"email": "a@x", "password": "p", "method": "plain"}]}`
+	dirty := model.Inbound{UserId: 1, Port: 31001, Protocol: model.Shadowsocks, Tag: "ss-removed", Settings: removed}
+	if err := db.Create(&dirty).Error; err != nil {
+		t.Fatalf("create dirty inbound: %v", err)
+	}
+
+	valid := `{"method": "aes-256-gcm", "clients": [{"email": "b@x", "password": "p"}]}`
+	clean := model.Inbound{UserId: 1, Port: 31002, Protocol: model.Shadowsocks, Tag: "ss-valid", Settings: valid}
+	if err := db.Create(&clean).Error; err != nil {
+		t.Fatalf("create clean inbound: %v", err)
+	}
+
+	if err := migrateShadowsocksRemovedCiphers(); err != nil {
+		t.Fatalf("migrateShadowsocksRemovedCiphers: %v", err)
+	}
+
+	var gotDirty model.Inbound
+	if err := db.First(&gotDirty, dirty.Id).Error; err != nil {
+		t.Fatalf("reload dirty inbound: %v", err)
+	}
+	var parsed struct {
+		Method  string           `json:"method"`
+		Clients []map[string]any `json:"clients"`
+	}
+	if err := json.Unmarshal([]byte(gotDirty.Settings), &parsed); err != nil {
+		t.Fatalf("parse repaired settings: %v", err)
+	}
+	if parsed.Method != "chacha20-ietf-poly1305" {
+		t.Fatalf("expected inbound method rewritten, got %q", parsed.Method)
+	}
+	if parsed.Clients[0]["method"] != "chacha20-ietf-poly1305" {
+		t.Fatalf("expected client method rewritten, got %v", parsed.Clients[0]["method"])
+	}
+
+	var gotClean model.Inbound
+	if err := db.First(&gotClean, clean.Id).Error; err != nil {
+		t.Fatalf("reload clean inbound: %v", err)
+	}
+	if gotClean.Settings != valid {
+		t.Fatalf("valid inbound was rewritten:\nbefore: %s\nafter:  %s", valid, gotClean.Settings)
+	}
+}
+
+// TestMigrateVmessRemovedSecurities_RewritesNoneAndZero covers the v26.7.11
+// removal of vmess "none"/"zero" security values: startup rewrites them to
+// "auto" on both the clients column and each vmess inbound's settings JSON.
+func TestMigrateVmessRemovedSecurities_RewritesNoneAndZero(t *testing.T) {
+	dbDir := t.TempDir()
+	t.Setenv("XUI_DB_FOLDER", dbDir)
+	if err := InitDB(filepath.Join(dbDir, "x-ui.db")); err != nil {
+		t.Fatalf("InitDB failed: %v", err)
+	}
+	t.Cleanup(func() { _ = CloseDB() })
+
+	settings := `{"clients": [{"id": "u1", "email": "a@x", "security": "none"},` +
+		`{"id": "u2", "email": "b@x", "security": "zero"},` +
+		`{"id": "u3", "email": "c@x", "security": "aes-128-gcm"}]}`
+	inbound := model.Inbound{UserId: 1, Port: 32001, Protocol: model.VMESS, Tag: "vmess-removed", Settings: settings}
+	if err := db.Create(&inbound).Error; err != nil {
+		t.Fatalf("create vmess inbound: %v", err)
+	}
+	if err := db.Create(&model.ClientRecord{Email: "a@x", Security: "zero", Enable: true}).Error; err != nil {
+		t.Fatalf("create client record: %v", err)
+	}
+
+	if err := migrateVmessRemovedSecurities(); err != nil {
+		t.Fatalf("migrateVmessRemovedSecurities: %v", err)
+	}
+
+	var got model.Inbound
+	if err := db.First(&got, inbound.Id).Error; err != nil {
+		t.Fatalf("reload inbound: %v", err)
+	}
+	var parsed struct {
+		Clients []map[string]any `json:"clients"`
+	}
+	if err := json.Unmarshal([]byte(got.Settings), &parsed); err != nil {
+		t.Fatalf("parse settings: %v", err)
+	}
+	if parsed.Clients[0]["security"] != "auto" || parsed.Clients[1]["security"] != "auto" {
+		t.Fatalf("expected removed securities rewritten to auto, got %v", parsed.Clients)
+	}
+	if parsed.Clients[2]["security"] != "aes-128-gcm" {
+		t.Fatalf("expected valid security untouched, got %v", parsed.Clients[2]["security"])
+	}
+
+	var rec model.ClientRecord
+	if err := db.Where("email = ?", "a@x").First(&rec).Error; err != nil {
+		t.Fatalf("reload client record: %v", err)
+	}
+	if rec.Security != "auto" {
+		t.Fatalf("expected client record security rewritten to auto, got %q", rec.Security)
+	}
+}
diff --git a/internal/sub/clash_service.go b/internal/sub/clash_service.go
index 2ccf2169a..8147930e3 100644
--- a/internal/sub/clash_service.go
+++ b/internal/sub/clash_service.go
@@ -236,11 +236,7 @@ func (s *SubClashService) buildProxy(subReq *SubService, inbound *model.Inbound,
 		proxy["type"] = "vmess"
 		proxy["uuid"] = client.ID
 		proxy["alterId"] = 0
-		cipher := client.Security
-		if cipher == "" {
-			cipher = "auto"
-		}
-		proxy["cipher"] = cipher
+		proxy["cipher"] = normalizeVmessSecurity(client.Security)
 	case model.VLESS:
 		proxy["type"] = "vless"
 		proxy["uuid"] = applyVlessRoute(client.ID, hostVlessRoute(ep))
diff --git a/internal/sub/json_service.go b/internal/sub/json_service.go
index 8cd0425f3..737a3330f 100644
--- a/internal/sub/json_service.go
+++ b/internal/sub/json_service.go
@@ -384,10 +384,7 @@ func (s *SubJsonService) genVnext(inbound *model.Inbound, streamSettings json_ut
 	}
 	outbound.StreamSettings = streamSettings
 
-	security := client.Security
-	if security == "" {
-		security = "auto"
-	}
+	security := normalizeVmessSecurity(client.Security)
 	outbound.Settings = map[string]any{
 		"address":  inbound.Listen,
 		"port":     inbound.Port,
diff --git a/internal/sub/service.go b/internal/sub/service.go
index 913f72f43..b0ad4a108 100644
--- a/internal/sub/service.go
+++ b/internal/sub/service.go
@@ -714,7 +714,7 @@ func (s *SubService) genVmessLink(inbound *model.Inbound, email string) string {
 		return ""
 	}
 	obj["id"] = client.ID
-	obj["scy"] = client.Security
+	obj["scy"] = normalizeVmessSecurity(client.Security)
 
 	externalProxies, _ := stream["externalProxy"].([]any)
 
@@ -726,6 +726,18 @@ func (s *SubService) genVmessLink(inbound *model.Inbound, email string) string {
 	return buildVmessLink(obj)
 }
 
+// normalizeVmessSecurity maps the vmess security values xray-core v26.7.11
+// removed ("none"/"zero"), plus the legacy empty string, to "auto" so links
+// and subscriptions stop advertising values the upgraded server rejects on
+// the wire.
+func normalizeVmessSecurity(security string) string {
+	switch security {
+	case "", "none", "zero":
+		return "auto"
+	}
+	return security
+}
+
 // vlessEncryptionEnabled reports whether the VLESS inbound settings enable
 // VLESS-level encryption (vlessenc / ML-KEM). When on, the encryption/decryption
 // fields hold a generated dotted string (e.g. "mlkem768x25519plus.native.0rtt.<key>");
@@ -2131,6 +2143,7 @@ var validFinalMaskTCPTypes = map[string]struct{}{
 	"header-custom": {},
 	"fragment":      {},
 	"sudoku":        {},
+	"xmc":           {},
 }
 
 // applyKcpShareParams reconstructs legacy KCP share-link fields from either
diff --git a/internal/sub/service_test.go b/internal/sub/service_test.go
index 8fe3a150f..1b8d926c7 100644
--- a/internal/sub/service_test.go
+++ b/internal/sub/service_test.go
@@ -1016,6 +1016,21 @@ func TestMarshalFinalMask_UnknownTypeIsDropped(t *testing.T) {
 	}
 }
 
+func TestMarshalFinalMask_KeepsXmcTcpMask(t *testing.T) {
+	fm := map[string]any{
+		"tcp": []any{
+			map[string]any{"type": "xmc", "settings": map[string]any{"password": "p"}},
+		},
+	}
+	out, ok := marshalFinalMask(fm)
+	if !ok {
+		t.Fatal("expected ok=true for an xmc tcp mask")
+	}
+	if !strings.Contains(out, "xmc") {
+		t.Fatalf("marshaled finalmask dropped the xmc mask: %s", out)
+	}
+}
+
 func TestHasFinalMaskContent(t *testing.T) {
 	if hasFinalMaskContent(nil) {
 		t.Fatal("nil should not count as content")
diff --git a/internal/util/link/outbound.go b/internal/util/link/outbound.go
index 38a0f0e2b..b4c7bd77a 100644
--- a/internal/util/link/outbound.go
+++ b/internal/util/link/outbound.go
@@ -208,6 +208,10 @@ func parseVmess(link string) (*ParseResult, error) {
 	}
 
 	port := num(j["port"])
+	scy := getString(j, "scy", "auto")
+	if scy == "none" || scy == "zero" {
+		scy = "auto"
+	}
 	ob := Outbound{
 		"protocol": "vmess",
 		"tag":      getString(j, "ps", ""),
@@ -219,7 +223,7 @@ func parseVmess(link string) (*ParseResult, error) {
 					"users": []any{
 						map[string]any{
 							"id":       getString(j, "id", ""),
-							"security": getString(j, "scy", "auto"),
+							"security": scy,
 						},
 					},
 				},
diff --git a/internal/web/service/inbound.go b/internal/web/service/inbound.go
index 495a4f086..9af1fac8f 100644
--- a/internal/web/service/inbound.go
+++ b/internal/web/service/inbound.go
@@ -503,7 +503,9 @@ func (s *InboundService) getAllEmailSubIDs() (map[string]string, error) {
 // Only vmess, vless, trojan, shadowsocks, hysteria, wireguard, and tunnel
 // protocols use streamSettings (wireguard for finalmask UDP masks and sockopt on
 // its listener; tunnel for sockopt, notably sockopt.tproxy for its TProxy/redirect
-// mode).
+// mode). Streams keyed on "method" — xray-core v26.7.11's preferred alias for
+// "network" — are canonicalized to "network", which every panel reader (link
+// generation, port-conflict detection, flow eligibility) keys on.
 func (s *InboundService) normalizeStreamSettings(inbound *model.Inbound) {
 	protocolsWithStream := map[model.Protocol]bool{
 		model.VMESS:       true,
@@ -517,7 +519,33 @@ func (s *InboundService) normalizeStreamSettings(inbound *model.Inbound) {
 
 	if !protocolsWithStream[inbound.Protocol] {
 		inbound.StreamSettings = ""
+		return
 	}
+	inbound.StreamSettings = canonicalizeStreamNetworkKey(inbound.StreamSettings)
+}
+
+// canonicalizeStreamNetworkKey rewrites a streamSettings JSON that names its
+// transport under "method" to the panel-canonical "network" key. When both
+// keys are present, "method" wins — matching xray-core's own precedence.
+func canonicalizeStreamNetworkKey(streamSettings string) string {
+	if streamSettings == "" {
+		return streamSettings
+	}
+	var stream map[string]any
+	if err := json.Unmarshal([]byte(streamSettings), &stream); err != nil {
+		return streamSettings
+	}
+	method, ok := stream["method"].(string)
+	if !ok || method == "" {
+		return streamSettings
+	}
+	stream["network"] = method
+	delete(stream, "method")
+	out, err := json.MarshalIndent(stream, "", "  ")
+	if err != nil {
+		return streamSettings
+	}
+	return string(out)
 }
 
 // finalMaskRealityTcpMasks returns the stream's finalmask.tcp masks when the
diff --git a/internal/web/service/outbound_subscription.go b/internal/web/service/outbound_subscription.go
index f5b08968c..04e0f7b1a 100644
--- a/internal/web/service/outbound_subscription.go
+++ b/internal/web/service/outbound_subscription.go
@@ -17,8 +17,34 @@ import (
 	"github.com/mhsanaei/3x-ui/v3/internal/logger"
 	"github.com/mhsanaei/3x-ui/v3/internal/util/common"
 	"github.com/mhsanaei/3x-ui/v3/internal/util/link"
+	"github.com/mhsanaei/3x-ui/v3/internal/xray"
 )
 
+// filterOutboundsRejectedByCore drops outbounds the vendored xray-core config
+// loader refuses to build — since v26.7.11 that includes unencrypted
+// vless/trojan outbounds to public addresses — because one such outbound in
+// the merged config would keep the whole core from starting.
+func filterOutboundsRejectedByCore(label string, outbounds []any) ([]any, []string) {
+	kept := make([]any, 0, len(outbounds))
+	var dropped []string
+	for _, ob := range outbounds {
+		raw, err := json.Marshal(ob)
+		if err == nil {
+			if buildErr := xray.ValidateOutboundConfig(raw); buildErr != nil {
+				tag := ""
+				if m, ok := ob.(map[string]any); ok {
+					tag, _ = m["tag"].(string)
+				}
+				logger.Warningf("%s: dropping outbound %q rejected by xray-core: %v", label, tag, buildErr)
+				dropped = append(dropped, fmt.Sprintf("%s: %v", tag, buildErr))
+				continue
+			}
+		}
+		kept = append(kept, ob)
+	}
+	return kept, dropped
+}
+
 // maxOutboundSubscriptionBytes caps a single outbound subscription response.
 // It is larger than the 2 MiB user-facing subscription cap because an outbound
 // subscription may aggregate many upstream outbounds into one document.
@@ -347,24 +373,28 @@ func (s *OutboundSubscriptionService) fetchAndStore(sub *model.OutboundSubscript
 	}
 	identJSON, _ := json.Marshal(newIdent)
 
+	asAny := make([]any, len(parsed))
+	for i := range parsed {
+		asAny[i] = map[string]any(parsed[i])
+	}
+	kept, droppedByCore := filterOutboundsRejectedByCore(fmt.Sprintf("outbound sub %d", sub.Id), asAny)
+
 	// Persist the outbounds (as compact JSON array)
-	obsJSON, _ := json.Marshal(parsed)
+	obsJSON, _ := json.Marshal(kept)
 
 	sub.LastFetchedOutbounds = string(obsJSON)
 	sub.LinkIdentities = string(identJSON)
 	sub.LastUpdated = time.Now().Unix()
 	sub.LastError = ""
+	if len(droppedByCore) > 0 {
+		sub.LastError = fmt.Sprintf("dropped %d outbound(s) the xray core rejects: %s", len(droppedByCore), droppedByCore[0])
+	}
 
 	if err := database.GetDB().Save(sub).Error; err != nil {
 		return nil, err
 	}
 
-	// Return as []any for the config merger
-	result := make([]any, len(parsed))
-	for i := range parsed {
-		result[i] = parsed[i]
-	}
-	return result, nil
+	return kept, nil
 }
 
 func (s *OutboundSubscriptionService) recordError(sub *model.OutboundSubscription, err error) {
@@ -456,6 +486,7 @@ func (s *OutboundSubscriptionService) activeOutboundsSplit() (prepend []any, app
 			logger.Warningf("outbound sub %d has corrupt LastFetchedOutbounds: %v", sub.Id, err)
 			continue
 		}
+		arr, _ = filterOutboundsRejectedByCore(fmt.Sprintf("outbound sub %d", sub.Id), arr)
 		if sub.Prepend {
 			prepend = append(prepend, arr...)
 		} else {
diff --git a/internal/web/service/stream_network_alias_test.go b/internal/web/service/stream_network_alias_test.go
new file mode 100644
index 000000000..d123960e3
--- /dev/null
+++ b/internal/web/service/stream_network_alias_test.go
@@ -0,0 +1,57 @@
+package service
+
+import (
+	"encoding/json"
+	"testing"
+)
+
+// TestCanonicalizeStreamNetworkKey covers xray-core v26.7.11's "method" alias
+// for streamSettings "network": a config keyed on "method" (from an imported
+// or API-authored inbound) must be folded back to the panel-canonical
+// "network" key that every downstream reader — link generation, port-conflict
+// detection, flow eligibility — depends on.
+func TestCanonicalizeStreamNetworkKey(t *testing.T) {
+	tests := []struct {
+		name        string
+		in          string
+		wantNetwork string
+		wantMethod  bool
+	}{
+		{
+			name:        "method alias becomes network",
+			in:          `{"method": "ws", "security": "tls"}`,
+			wantNetwork: "ws",
+		},
+		{
+			name:        "method wins when both present",
+			in:          `{"method": "grpc", "network": "tcp"}`,
+			wantNetwork: "grpc",
+		},
+		{
+			name:        "plain network untouched",
+			in:          `{"network": "tcp"}`,
+			wantNetwork: "tcp",
+		},
+	}
+	for _, tc := range tests {
+		t.Run(tc.name, func(t *testing.T) {
+			got := canonicalizeStreamNetworkKey(tc.in)
+			var stream map[string]any
+			if err := json.Unmarshal([]byte(got), &stream); err != nil {
+				t.Fatalf("result is not valid JSON: %v", err)
+			}
+			if stream["network"] != tc.wantNetwork {
+				t.Fatalf("network = %v, want %q", stream["network"], tc.wantNetwork)
+			}
+			if _, hasMethod := stream["method"]; hasMethod {
+				t.Fatalf("method key must be removed, got %s", got)
+			}
+		})
+	}
+}
+
+func TestCanonicalizeStreamNetworkKey_EmptyPassthrough(t *testing.T) {
+	if got := canonicalizeStreamNetworkKey(""); got != "" {
+		t.Fatalf("empty stream must round-trip, got %q", got)
+	}
+}
diff --git a/internal/web/service/xray_setting.go b/internal/web/service/xray_setting.go
index f29c46385..65c43fc91 100644
--- a/internal/web/service/xray_setting.go
+++ b/internal/web/service/xray_setting.go
@@ -41,6 +41,21 @@ func (s *XraySettingService) CheckXrayConfig(XrayTemplateConfig string) error {
 	if err != nil {
 		return common.NewError("xray template config invalid:", err)
 	}
+	if len(xrayConfig.OutboundConfigs) > 0 {
+		var outbounds []json.RawMessage
+		if err := json.Unmarshal(xrayConfig.OutboundConfigs, &outbounds); err != nil {
+			return common.NewError("xray template config invalid: outbounds is not an array:", err)
+		}
+		for _, outbound := range outbounds {
+			if err := xray.ValidateOutboundConfig(outbound); err != nil {
+				tagged := struct {
+					Tag string `json:"tag"`
+				}{}
+				_ = json.Unmarshal(outbound, &tagged)
+				return common.NewError("xray core rejects outbound \""+tagged.Tag+"\":", err)
+			}
+		}
+	}
 	return nil
 }
 
diff --git a/internal/xray/api.go b/internal/xray/api.go
index d3f95e1f4..b9ffc78aa 100644
--- a/internal/xray/api.go
+++ b/internal/xray/api.go
@@ -171,6 +171,19 @@ func (x *XrayAPI) DelInbound(tag string) error {
 	return err
 }
 
+// ValidateOutboundConfig builds an outbound JSON object through the vendored
+// xray-core config loader, surfacing the exact error the core would raise at
+// startup — notably v26.7.11's refusal of unencrypted vless/trojan outbounds
+// whose server address is a public IP or domain.
+func ValidateOutboundConfig(outbound []byte) error {
+	detour := new(conf.OutboundDetourConfig)
+	if err := json.Unmarshal(outbound, detour); err != nil {
+		return err
+	}
+	_, err := detour.Build()
+	return err
+}
+
 // AddOutbound adds a new outbound configuration to the Xray core via gRPC.
 func (x *XrayAPI) AddOutbound(outbound []byte) error {
 	if x.HandlerServiceClient == nil {
@@ -518,6 +531,8 @@ func buildUserAccount(protocolName string, user map[string]any) (*serial.TypedMe
 
 		var ssCipherType shadowsocks.CipherType
 		switch cipher {
+		case "aes-128-gcm":
+			ssCipherType = shadowsocks.CipherType_AES_128_GCM
 		case "aes-256-gcm":
 			ssCipherType = shadowsocks.CipherType_AES_256_GCM
 		case "chacha20-poly1305", "chacha20-ietf-poly1305":
@@ -525,10 +540,10 @@ func buildUserAccount(protocolName string, user map[string]any) (*serial.TypedMe
 		case "xchacha20-poly1305", "xchacha20-ietf-poly1305":
 			ssCipherType = shadowsocks.CipherType_XCHACHA20_POLY1305
 		default:
-			ssCipherType = shadowsocks.CipherType_NONE
+			ssCipherType = shadowsocks.CipherType_UNKNOWN
 		}
 
-		if ssCipherType != shadowsocks.CipherType_NONE {
+		if ssCipherType != shadowsocks.CipherType_UNKNOWN {
 			return serial.ToTypedMessage(&shadowsocks.Account{
 				Password:   password,
 				CipherType: ssCipherType,
diff --git a/internal/xray/config.go b/internal/xray/config.go
index 40c1fdcba..2cff15963 100644
--- a/internal/xray/config.go
+++ b/internal/xray/config.go
@@ -24,6 +24,7 @@ type Config struct {
 	BurstObservatory json_util.RawMessage `json:"burstObservatory,omitempty"`
 	Metrics          json_util.RawMessage `json:"metrics"`
 	Geodata          json_util.RawMessage `json:"geodata,omitempty"`
+	Env              json_util.RawMessage `json:"env,omitempty"`
 }
 
 // Equals compares two Config instances for deep equality.
@@ -78,5 +79,8 @@ func (c *Config) Equals(other *Config) bool {
 	if !bytes.Equal(c.Geodata, other.Geodata) {
 		return false
 	}
+	if !bytes.Equal(c.Env, other.Env) {
+		return false
+	}
 	return true
 }
diff --git a/internal/xray/hot_diff.go b/internal/xray/hot_diff.go
index 50458dc2e..0bb0b0ef1 100644
--- a/internal/xray/hot_diff.go
+++ b/internal/xray/hot_diff.go
@@ -70,6 +70,7 @@ func ComputeHotDiff(oldCfg, newCfg *Config) (*HotDiff, bool) {
 		{"burstObservatory", oldCfg.BurstObservatory, newCfg.BurstObservatory},
 		{"metrics", oldCfg.Metrics, newCfg.Metrics},
 		{"geodata", oldCfg.Geodata, newCfg.Geodata},
+		{"env", oldCfg.Env, newCfg.Env},
 	}
 	for _, section := range static {
 		if !rawEqualNormalized(section.old, section.new) {
diff --git a/internal/xray/hot_diff_test.go b/internal/xray/hot_diff_test.go
index a70db3f87..03c32fd4a 100644
--- a/internal/xray/hot_diff_test.go
+++ b/internal/xray/hot_diff_test.go
@@ -143,6 +143,12 @@ func TestComputeHotDiff_StaticSectionChangeNeedsRestart(t *testing.T) {
 	if _, ok := ComputeHotDiff(makeHotConfig(), newCfg); ok {
 		t.Fatal("observatory change must force a restart")
 	}
+
+	newCfg = makeHotConfig()
+	newCfg.Env = json_util.RawMessage(`{"XRAY_DNS_PATH":"/tmp/dns"}`)
+	if _, ok := ComputeHotDiff(makeHotConfig(), newCfg); ok {
+		t.Fatal("env change must force a restart: env vars are read only at process start")
+	}
 }
 
 func TestComputeHotDiff_InboundAddRemoveChange(t *testing.T) {
diff --git a/internal/xray/outbound_validation_test.go b/internal/xray/outbound_validation_test.go
new file mode 100644
index 000000000..6bdd7b4bb
--- /dev/null
+++ b/internal/xray/outbound_validation_test.go
@@ -0,0 +1,42 @@
+package xray
+
+import (
+	"strings"
+	"testing"
+)
+
+// TestValidateOutboundConfig_RejectsUnencryptedPublicVless covers xray-core
+// v26.7.11's refusal to build an unencrypted vless outbound to a public
+// address — the check now runs in-process, so the panel can surface it before
+// a config reaches the core and bricks startup. A private-address outbound and
+// a TLS outbound stay valid.
+func TestValidateOutboundConfig_RejectsUnencryptedPublicVless(t *testing.T) {
+	publicPlaintext := `{
+		"protocol": "vless",
+		"settings": {"address": "1.2.3.4", "port": 443, "id": "b831381d-6324-4d53-ad4f-8cda48b30811", "encryption": "none"},
+		"streamSettings": {"network": "tcp", "security": "none"}
+	}`
+	if err := ValidateOutboundConfig([]byte(publicPlaintext)); err == nil {
+		t.Fatal("expected a public unencrypted vless outbound to be rejected")
+	} else if !strings.Contains(err.Error(), "prohibited") {
+		t.Fatalf("expected a prohibition error, got: %v", err)
+	}
+
+	privatePlaintext := `{
+		"protocol": "vless",
+		"settings": {"address": "10.0.0.1", "port": 443, "id": "b831381d-6324-4d53-ad4f-8cda48b30811", "encryption": "none"},
+		"streamSettings": {"network": "tcp", "security": "none"}
+	}`
+	if err := ValidateOutboundConfig([]byte(privatePlaintext)); err != nil {
+		t.Fatalf("a private-address plaintext vless outbound must stay valid, got: %v", err)
+	}
+
+	publicTLS := `{
+		"protocol": "vless",
+		"settings": {"address": "1.2.3.4", "port": 443, "id": "b831381d-6324-4d53-ad4f-8cda48b30811", "encryption": "none"},
+		"streamSettings": {"network": "tcp", "security": "tls", "tlsSettings": {"serverName": "example.com"}}
+	}`
+	if err := ValidateOutboundConfig([]byte(publicTLS)); err != nil {
+		t.Fatalf("a TLS-secured public vless outbound must stay valid, got: %v", err)
+	}
+}