diff --git a/CHANGELOG.md b/CHANGELOG.md
index e6b424597..0f4825d0b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,12 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [Unreleased]
+
+### Added
+
+- **All SDKs:** `OrderStatus` gains a `DelayedNotReported` variant (wire value `DelayedNotReported`) — "monitoring", the state a time-conditional order sits in before it is reported to the exchange. Previously this status deserialized to `OrderStatus::Unknown`, so time-conditional orders being monitored were indistinguishable from a genuinely unrecognized status in `today_orders` / `history_orders` / `order_detail` and the order-changed push. The variant is appended **after** `PartialWithdrawal` rather than inserted next to the other `*NotReported` values on purpose: the C/C++/Node.js enums use implicit discriminants, and inserting mid-list would renumber every following value (an ABI break for the C/C++ bindings, and a silent mismatch for TypeScript code that inlined the old `const enum` values)
+
 ## [5.0.0] - 2026-09-14
 
 ### Changed
diff --git a/c/csrc/include/longbridge.h b/c/csrc/include/longbridge.h
index e3b78b554..2e501c36e 100644
--- a/c/csrc/include/longbridge.h
+++ b/c/csrc/include/longbridge.h
@@ -1261,6 +1261,10 @@ typedef enum lb_order_status_t {
    * Partial Withdrawal
    */
   OrderStatusPartialWithdrawal,
+  /**
+   * Monitoring (Time-Conditional Order)
+   */
+  OrderStatusDelayedNotReported,
 } lb_order_status_t;
 
 /**
diff --git a/c/src/trade_context/enum_types.rs b/c/src/trade_context/enum_types.rs
index dc7260af3..e13a2ef13 100644
--- a/c/src/trade_context/enum_types.rs
+++ b/c/src/trade_context/enum_types.rs
@@ -138,6 +138,9 @@ pub enum COrderStatus {
     /// Partial Withdrawal
     #[c(remote = "PartialWithdrawal")]
     OrderStatusPartialWithdrawal,
+    /// Monitoring (Time-Conditional Order)
+    #[c(remote = "DelayedNotReported")]
+    OrderStatusDelayedNotReported,
 }
 
 /// Order tag
diff --git a/cpp/include/types.hpp b/cpp/include/types.hpp
index 33ae6ffb7..a83fcdae1 100644
--- a/cpp/include/types.hpp
+++ b/cpp/include/types.hpp
@@ -1480,6 +1480,8 @@ enum class OrderStatus
   Expired,
   /// Partial Withdrawal
   PartialWithdrawal,
+  /// Monitoring (Time-Conditional Order)
+  DelayedNotReported,
 };
 
 /// Order type
diff --git a/cpp/src/convert.hpp b/cpp/src/convert.hpp
index f18c05ff9..482080ba3 100644
--- a/cpp/src/convert.hpp
+++ b/cpp/src/convert.hpp
@@ -1051,6 +1051,8 @@ convert(lb_order_status_t status)
       return OrderStatus::Expired;
     case OrderStatusPartialWithdrawal:
       return OrderStatus::PartialWithdrawal;
+    case OrderStatusDelayedNotReported:
+      return OrderStatus::DelayedNotReported;
     default:
       throw std::invalid_argument("unreachable");
   }
@@ -1096,6 +1098,8 @@ convert(OrderStatus status)
       return OrderStatusExpired;
     case OrderStatus::PartialWithdrawal:
       return OrderStatusPartialWithdrawal;
+    case OrderStatus::DelayedNotReported:
+      return OrderStatusDelayedNotReported;
     default:
       throw std::invalid_argument("unreachable");
   }
diff --git a/java/javasrc/src/main/java/com/longbridge/trade/OrderStatus.java b/java/javasrc/src/main/java/com/longbridge/trade/OrderStatus.java
index 8813cc4ae..7fbeae1f6 100644
--- a/java/javasrc/src/main/java/com/longbridge/trade/OrderStatus.java
+++ b/java/javasrc/src/main/java/com/longbridge/trade/OrderStatus.java
@@ -40,4 +40,6 @@ public enum OrderStatus {
     Expired,
     /** Partial withdrawal */
     PartialWithdrawal,
+    /** Monitoring (time-conditional order) */
+    DelayedNotReported,
 }
diff --git a/java/src/types/enum_types.rs b/java/src/types/enum_types.rs
index 38ceb4fca..1d16d9428 100644
--- a/java/src/types/enum_types.rs
+++ b/java/src/types/enum_types.rs
@@ -381,6 +381,7 @@ impl_java_enum!(
         Canceled,
         Expired,
         PartialWithdrawal,
+        DelayedNotReported,
     ]
 );
 
diff --git a/nodejs/index.d.ts b/nodejs/index.d.ts
index df10f667e..5425b6bf1 100644
--- a/nodejs/index.d.ts
+++ b/nodejs/index.d.ts
@@ -6227,7 +6227,9 @@ export declare const enum OrderStatus {
   /** Expired */
   Expired = 16,
   /** Partial Withdrawal */
-  PartialWithdrawal = 17
+  PartialWithdrawal = 17,
+  /** Monitoring (Time-Conditional Order) */
+  DelayedNotReported = 18
 }
 
 /** Order tag */
diff --git a/nodejs/index.js b/nodejs/index.js
index 88789ebfb..ed780f473 100644
--- a/nodejs/index.js
+++ b/nodejs/index.js
@@ -3,7 +3,7 @@
 // @ts-nocheck
 /* auto-generated by NAPI-RS */
 
-const { readFileSync } = require('node:fs')
+const { readFileSync } = require('fs')
 let nativeBinding = null
 const loadErrors = []
 
@@ -33,7 +33,7 @@ const isMuslFromFilesystem = () => {
 
 const isMuslFromReport = () => {
   let report = null
-  if (typeof process.report?.getReport === 'function') {
+  if (process.report && typeof process.report.getReport === 'function') {
     process.report.excludeNetwork = true
     report = process.report.getReport()
   }
@@ -105,7 +105,7 @@ function requireNative() {
     }
   } else if (process.platform === 'win32') {
     if (process.arch === 'x64') {
-      if (process.config?.variables?.shlib_suffix === 'dll.a' || process.config?.variables?.node_target_type === 'shared_library') {
+      if ((process.config && process.config.variables && process.config.variables.shlib_suffix === 'dll.a') || (process.config && process.config.variables && process.config.variables.node_target_type === 'shared_library')) {
         try {
         return require('./longbridge.win32-x64-gnu.node')
       } catch (e) {
@@ -523,54 +523,178 @@ function requireNative() {
   }
 }
 
-nativeBinding = requireNative()
+function createLoadErrorChain(errors) {
+  return errors.reduce((previous, current) => {
+    let message
+    try {
+      message =
+        current && typeof current.message === 'string'
+          ? current.message
+          : String(current)
+    } catch {
+      message = 'Unknown error'
+    }
+    const error = new Error(message)
+    error.cause = previous
+    return error
+  }, null)
+}
+
+// NAPI_RS_FORCE_WASI is a tri-state flag:
+//   unset / any other value → native binding preferred, WASI is only a fallback
+//   'true'                   → prefer WASI, but retain native as a lazy fallback
+//   'error'                  → require WASI without initializing a native fallback
+// Treating any non-empty string as truthy (the historical behavior) meant
+// NAPI_RS_FORCE_WASI=false, NAPI_RS_FORCE_WASI=0, etc. inadvertently triggered
+// the WASI path, causing ENOENT for packages shipped without a .wasi.cjs file.
+//
+// NAPI_RS_WASI_FLAVOR selects one exact generated flavor and implies strict
+// WASI loading. It never crosses into another flavor or falls back to native.
+const __napiWasiFlavors = ["wasm32-wasi"]
+const __napiWasiFlavor = process.env.NAPI_RS_WASI_FLAVOR
+const __napiWasiFlavorRequested =
+  typeof __napiWasiFlavor === 'string' && __napiWasiFlavor.length > 0
+if (
+  __napiWasiFlavorRequested &&
+  __napiWasiFlavors.indexOf(__napiWasiFlavor) === -1
+) {
+  throw new Error(
+    'Unsupported WASI flavor "' +
+      __napiWasiFlavor +
+      '". Available flavors: ' +
+      __napiWasiFlavors.join(', '),
+  )
+}
+const forceWasiError = process.env.NAPI_RS_FORCE_WASI === 'error'
+const forceWasi =
+  process.env.NAPI_RS_FORCE_WASI === 'true' ||
+  forceWasiError ||
+  __napiWasiFlavorRequested
+
+if (!forceWasi) {
+  nativeBinding = requireNative()
+}
 
-if (!nativeBinding || process.env.NAPI_RS_FORCE_WASI) {
+if (!nativeBinding || forceWasi) {
   let wasiBinding = null
-  let wasiBindingError = null
-  try {
-    wasiBinding = require('./longbridge.wasi.cjs')
-    nativeBinding = wasiBinding
-  } catch (err) {
-    if (process.env.NAPI_RS_FORCE_WASI) {
-      wasiBindingError = err
+  let wasiBindingLoaded = false
+  const wasiBindingErrors = []
+  const __napiWasiResolveCandidate = (specifier, isPackage, localArtifacts) => {
+    try {
+      require.resolve(specifier)
+    } catch (resolveError) {
+      if (!resolveError || resolveError.code !== 'MODULE_NOT_FOUND') {
+        throw resolveError
+      }
+      if (isPackage) {
+        try {
+          require.resolve(specifier + '/package.json')
+        } catch (packageError) {
+          if (packageError && packageError.code === 'MODULE_NOT_FOUND') {
+            return resolveError
+          }
+          // An exports restriction proves the package exists even when its
+          // package.json is not public. Preserve the root resolution failure.
+          throw resolveError
+        }
+        // The package exists but its main/export target is broken.
+        throw resolveError
+      }
+      return resolveError
     }
+    if (localArtifacts) {
+      let artifactError = null
+      for (let i = 0; i < localArtifacts.length; i++) {
+        try {
+          require.resolve(localArtifacts[i])
+          return null
+        } catch (resolveError) {
+          if (!resolveError || resolveError.code !== 'MODULE_NOT_FOUND') {
+            throw resolveError
+          }
+          artifactError = resolveError
+        }
+      }
+      return artifactError
+    }
+    return null
   }
-  if (!nativeBinding || process.env.NAPI_RS_FORCE_WASI) {
+  if (!wasiBindingLoaded && (!__napiWasiFlavorRequested || __napiWasiFlavor === "wasm32-wasi")) {
+    let candidateError = null
+    let candidateFailed = false
     try {
-      wasiBinding = require('longbridge-wasm32-wasi')
-      nativeBinding = wasiBinding
+      candidateError = __napiWasiResolveCandidate('./longbridge.wasi.cjs', false, ["./longbridge.wasm32-wasi.debug.wasm","./longbridge.wasm32-wasi.wasm"])
+      candidateFailed = candidateError !== null
+      if (!candidateFailed) {
+        wasiBinding = require('./longbridge.wasi.cjs')
+        nativeBinding = wasiBinding
+        wasiBindingLoaded = true
+      }
     } catch (err) {
-      if (process.env.NAPI_RS_FORCE_WASI) {
-        if (!wasiBindingError) {
-          wasiBindingError = err
-        } else {
-          wasiBindingError.cause = err
+      candidateError = err
+      candidateFailed = true
+    }
+    if (candidateFailed) {
+      wasiBindingErrors.push(candidateError)
+      loadErrors.push(candidateError)
+    }
+  }
+  if (!wasiBindingLoaded && (!__napiWasiFlavorRequested || __napiWasiFlavor === "wasm32-wasi")) {
+    let candidateError = null
+    let candidateFailed = false
+    try {
+      candidateError = __napiWasiResolveCandidate('longbridge-wasm32-wasi', true, undefined)
+      candidateFailed = candidateError !== null
+      if (!candidateFailed) {
+        if (process.env.NAPI_RS_ENFORCE_VERSION_CHECK && process.env.NAPI_RS_ENFORCE_VERSION_CHECK !== '0') {
+          const bindingPackageVersion = require('longbridge-wasm32-wasi/package.json').version
+          if (bindingPackageVersion !== '0.0.0') {
+            throw new Error(`WASI binding package version mismatch, expected 0.0.0 but got ${bindingPackageVersion}. You can reinstall dependencies to fix this issue.`)
+          }
         }
-        loadErrors.push(err)
+        wasiBinding = require('longbridge-wasm32-wasi')
+        nativeBinding = wasiBinding
+        wasiBindingLoaded = true
       }
+    } catch (err) {
+      candidateError = err
+      candidateFailed = true
+    }
+    if (candidateFailed) {
+      wasiBindingErrors.push(candidateError)
+      loadErrors.push(candidateError)
     }
   }
-  if (process.env.NAPI_RS_FORCE_WASI === 'error' && !wasiBinding) {
-    const error = new Error('WASI binding not found and NAPI_RS_FORCE_WASI is set to error')
-    error.cause = wasiBindingError
+  if (
+    !wasiBindingLoaded &&
+    forceWasi &&
+    !forceWasiError &&
+    !__napiWasiFlavorRequested
+  ) {
+    nativeBinding = requireNative()
+  }
+  if ((forceWasiError || __napiWasiFlavorRequested) && !wasiBindingLoaded) {
+    const error = new Error(
+      __napiWasiFlavorRequested
+        ? 'WASI binding for flavor "' + __napiWasiFlavor + '" not found'
+        : 'WASI binding not found and NAPI_RS_FORCE_WASI is set to error',
+    )
+    error.cause = createLoadErrorChain(wasiBindingErrors)
     throw error
   }
 }
 
 if (!nativeBinding) {
   if (loadErrors.length > 0) {
-    throw new Error(
+    const error = new Error(
       `Cannot find native binding. ` +
         `npm has a bug related to optional dependencies (https://github.com/npm/cli/issues/4828). ` +
         'Please try `npm i` again after removing both package-lock.json and node_modules directory.',
-      {
-        cause: loadErrors.reduce((err, cur) => {
-          cur.cause = err
-          return cur
-        }),
-      },
     )
+    // assign instead of the `new Error(message, { cause })` options form,
+    // which Node < 16.9 silently ignores
+    error.cause = createLoadErrorChain(loadErrors)
+    throw error
   }
   throw new Error(`Failed to load native binding`)
 }
diff --git a/nodejs/src/trade/types.rs b/nodejs/src/trade/types.rs
index b251bc9c7..859a156b5 100644
--- a/nodejs/src/trade/types.rs
+++ b/nodejs/src/trade/types.rs
@@ -74,6 +74,8 @@ pub enum OrderStatus {
     Expired,
     /// Partial Withdrawal
     PartialWithdrawal,
+    /// Monitoring (Time-Conditional Order)
+    DelayedNotReported,
 }
 
 #[napi_derive::napi]
diff --git a/python/pysrc/longbridge/openapi.pyi b/python/pysrc/longbridge/openapi.pyi
index cdfb56adb..407e3e156 100644
--- a/python/pysrc/longbridge/openapi.pyi
+++ b/python/pysrc/longbridge/openapi.pyi
@@ -5704,6 +5704,11 @@ class OrderStatus:
         PartialWithdrawal
         """
 
+    class DelayedNotReported(OrderStatus):
+        """
+        Monitoring (Time-Conditional Order)
+        """
+
 class OrderTag:
     """
     Order tag
diff --git a/python/src/trade/types.rs b/python/src/trade/types.rs
index 0baefd345..cd281e2be 100644
--- a/python/src/trade/types.rs
+++ b/python/src/trade/types.rs
@@ -90,6 +90,8 @@ pub(crate) enum OrderStatus {
     Expired,
     /// Partial Withdrawal
     PartialWithdrawal,
+    /// Monitoring (Time-Conditional Order)
+    DelayedNotReported,
 }
 
 #[pyclass(eq, eq_int, from_py_object)]
diff --git a/rust/src/trade/types.rs b/rust/src/trade/types.rs
index 46f079c17..7ea71b56a 100644
--- a/rust/src/trade/types.rs
+++ b/rust/src/trade/types.rs
@@ -109,6 +109,9 @@ pub enum OrderStatus {
     /// Partial Withdrawal
     #[strum(serialize = "PartialWithdrawal")]
     PartialWithdrawal,
+    /// Monitoring (Time-Conditional Order)
+    #[strum(serialize = "DelayedNotReported")]
+    DelayedNotReported,
 }
 
 /// Execution