diff --git a/sdks/node/VERSION b/sdks/node/VERSION
index d82db9132..00f91b858 100644
--- a/sdks/node/VERSION
+++ b/sdks/node/VERSION
@@ -1 +1 @@
-1.8-dev
+1.8.1-dev
diff --git a/sdks/node/api/apis.ts b/sdks/node/api/apis.ts
index 771aa5c8e..f9d7d41f6 100644
--- a/sdks/node/api/apis.ts
+++ b/sdks/node/api/apis.ts
@@ -38,7 +38,7 @@ export const queryParamsSerializer = (params) => {
   return Qs.stringify(params, { arrayFormat: "brackets" });
 };
 
-export const USER_AGENT = "OpenAPI-Generator/1.8-dev/node";
+export const USER_AGENT = "OpenAPI-Generator/1.8.1-dev/node";
 
 /**
  * Generates an object containing form data.
diff --git a/sdks/node/bin/copy-constants.php b/sdks/node/bin/copy-constants.php
new file mode 100755
index 000000000..c9634b6cd
--- /dev/null
+++ b/sdks/node/bin/copy-constants.php
@@ -0,0 +1,64 @@
+#!/usr/bin/env php
+<?php
+
+require_once __DIR__ . '/../vendor/autoload.php';
+
+ini_set('display_errors', 1);
+ini_set('display_startup_errors', 1);
+error_reporting(E_ALL);
+
+set_error_handler(function ($level, $msg) {
+    echo "Error: {$msg}";
+    exit(1);
+});
+
+/**
+ * Between openapi-generator v7.8.0 and v7.12.0 a change was made to the way
+ * a few generators create constant names from values. The original way was
+ * actually broken. For example "change-field-visibility" would generate a
+ * constant name of "TYPE_FIELD_VISIBILITY", dropping the "change" part.
+ *
+ * The fix now generates the correct name, "TYPE_CHANGE_FIELD_VISIBILITY".
+ * However, the fix also gets rid of the previous (incorrect) constant names,
+ * making the fix a BC break.
+ *
+ * This simple script just adds the old constant names back, alongside the new
+ * ones.
+ */
+class CopyConstants
+{
+    public function run(): void
+    {
+        $file = __DIR__ . '/../model/subFormFieldRuleAction.ts';
+        $contents = file_get_contents($file);
+
+        $constant_1 = '    ChangeFieldVisibility = "change-field-visibility",';
+        $replace_1 = implode("\n", [
+            $constant_1,
+            '    FieldVisibility = "change-field-visibility",',
+        ]);
+
+        $constant_2 = '    ChangeGroupVisibility = "change-group-visibility",';
+        $replace_2 = implode("\n", [
+            $constant_2,
+            '    GroupVisibility = "change-group-visibility",',
+        ]);
+
+        $contents = str_replace(
+            $constant_1,
+            $replace_1,
+            $contents,
+        );
+
+        $contents = str_replace(
+            $constant_2,
+            $replace_2,
+            $contents,
+        );
+
+        file_put_contents($file, $contents);
+    }
+}
+
+$copier = new CopyConstants();
+$copier->run();
diff --git a/sdks/node/dist/api.js b/sdks/node/dist/api.js
index 13138becb..094234fea 100644
--- a/sdks/node/dist/api.js
+++ b/sdks/node/dist/api.js
@@ -10794,6 +10794,14 @@ var require_follow_redirects = __commonJS({
   }
 });
 
+// node_modules/es-object-atoms/index.js
+var require_es_object_atoms = __commonJS({
+  "node_modules/es-object-atoms/index.js"(exports, module2) {
+    "use strict";
+    module2.exports = Object;
+  }
+});
+
 // node_modules/es-errors/index.js
 var require_es_errors = __commonJS({
   "node_modules/es-errors/index.js"(exports, module2) {
@@ -10850,6 +10858,118 @@ var require_uri = __commonJS({
   }
 });
 
+// node_modules/math-intrinsics/abs.js
+var require_abs = __commonJS({
+  "node_modules/math-intrinsics/abs.js"(exports, module2) {
+    "use strict";
+    module2.exports = Math.abs;
+  }
+});
+
+// node_modules/math-intrinsics/floor.js
+var require_floor = __commonJS({
+  "node_modules/math-intrinsics/floor.js"(exports, module2) {
+    "use strict";
+    module2.exports = Math.floor;
+  }
+});
+
+// node_modules/math-intrinsics/max.js
+var require_max = __commonJS({
+  "node_modules/math-intrinsics/max.js"(exports, module2) {
+    "use strict";
+    module2.exports = Math.max;
+  }
+});
+
+// node_modules/math-intrinsics/min.js
+var require_min = __commonJS({
+  "node_modules/math-intrinsics/min.js"(exports, module2) {
+    "use strict";
+    module2.exports = Math.min;
+  }
+});
+
+// node_modules/math-intrinsics/pow.js
+var require_pow = __commonJS({
+  "node_modules/math-intrinsics/pow.js"(exports, module2) {
+    "use strict";
+    module2.exports = Math.pow;
+  }
+});
+
+// node_modules/math-intrinsics/round.js
+var require_round = __commonJS({
+  "node_modules/math-intrinsics/round.js"(exports, module2) {
+    "use strict";
+    module2.exports = Math.round;
+  }
+});
+
+// node_modules/math-intrinsics/isNaN.js
+var require_isNaN = __commonJS({
+  "node_modules/math-intrinsics/isNaN.js"(exports, module2) {
+    "use strict";
+    module2.exports = Number.isNaN || function isNaN2(a) {
+      return a !== a;
+    };
+  }
+});
+
+// node_modules/math-intrinsics/sign.js
+var require_sign = __commonJS({
+  "node_modules/math-intrinsics/sign.js"(exports, module2) {
+    "use strict";
+    var $isNaN = require_isNaN();
+    module2.exports = function sign(number) {
+      if ($isNaN(number) || number === 0) {
+        return number;
+      }
+      return number < 0 ? -1 : 1;
+    };
+  }
+});
+
+// node_modules/gopd/gOPD.js
+var require_gOPD = __commonJS({
+  "node_modules/gopd/gOPD.js"(exports, module2) {
+    "use strict";
+    module2.exports = Object.getOwnPropertyDescriptor;
+  }
+});
+
+// node_modules/gopd/index.js
+var require_gopd = __commonJS({
+  "node_modules/gopd/index.js"(exports, module2) {
+    "use strict";
+    var $gOPD = require_gOPD();
+    if ($gOPD) {
+      try {
+        $gOPD([], "length");
+      } catch (e) {
+        $gOPD = null;
+      }
+    }
+    module2.exports = $gOPD;
+  }
+});
+
+// node_modules/es-define-property/index.js
+var require_es_define_property = __commonJS({
+  "node_modules/es-define-property/index.js"(exports, module2) {
+    "use strict";
+    var $defineProperty = Object.defineProperty || false;
+    if ($defineProperty) {
+      try {
+        $defineProperty({}, "a", { value: 1 });
+      } catch (e) {
+        $defineProperty = false;
+      }
+    }
+    module2.exports = $defineProperty;
+  }
+});
+
 // node_modules/has-symbols/shams.js
 var require_shams = __commonJS({
   "node_modules/has-symbols/shams.js"(exports, module2) {
@@ -10875,7 +10995,7 @@ var require_shams = __commonJS({
       }
       var symVal = 42;
       obj[sym] = symVal;
-      for (sym in obj) {
+      for (var _ in obj) {
         return false;
       }
       if (typeof Object.keys === "function" && Object.keys(obj).length !== 0) {
@@ -10926,18 +11046,20 @@ var require_has_symbols = __commonJS({
   }
 });
 
-// node_modules/has-proto/index.js
-var require_has_proto = __commonJS({
-  "node_modules/has-proto/index.js"(exports, module2) {
+// node_modules/get-proto/Reflect.getPrototypeOf.js
+var require_Reflect_getPrototypeOf = __commonJS({
+  "node_modules/get-proto/Reflect.getPrototypeOf.js"(exports, module2) {
     "use strict";
-    var test2 = {
-      __proto__: null,
-      foo: {}
-    };
-    var $Object = Object;
-    module2.exports = function hasProto() {
-      return { __proto__: test2 }.foo === test2.foo && !(test2 instanceof $Object);
-    };
+    module2.exports = typeof Reflect !== "undefined" && Reflect.getPrototypeOf || null;
+  }
+});
+
+// node_modules/get-proto/Object.getPrototypeOf.js
+var require_Object_getPrototypeOf = __commonJS({
+  "node_modules/get-proto/Object.getPrototypeOf.js"(exports, module2) {
+    "use strict";
+    var $Object = require_es_object_atoms();
+    module2.exports = $Object.getPrototypeOf || null;
   }
 });
 
@@ -11026,6 +11148,102 @@ var require_function_bind = __commonJS({
   }
 });
 
+// node_modules/call-bind-apply-helpers/functionCall.js
+var require_functionCall = __commonJS({
+  "node_modules/call-bind-apply-helpers/functionCall.js"(exports, module2) {
+    "use strict";
+    module2.exports = Function.prototype.call;
+  }
+});
+
+// node_modules/call-bind-apply-helpers/functionApply.js
+var require_functionApply = __commonJS({
+  "node_modules/call-bind-apply-helpers/functionApply.js"(exports, module2) {
+    "use strict";
+    module2.exports = Function.prototype.apply;
+  }
+});
+
+// node_modules/call-bind-apply-helpers/reflectApply.js
+var require_reflectApply = __commonJS({
+  "node_modules/call-bind-apply-helpers/reflectApply.js"(exports, module2) {
+    "use strict";
+    module2.exports = typeof Reflect !== "undefined" && Reflect && Reflect.apply;
+  }
+});
+
+// node_modules/call-bind-apply-helpers/actualApply.js
+var require_actualApply = __commonJS({
+  "node_modules/call-bind-apply-helpers/actualApply.js"(exports, module2) {
+    "use strict";
+    var bind2 = require_function_bind();
+    var $apply = require_functionApply();
+    var $call = require_functionCall();
+    var $reflectApply = require_reflectApply();
+    module2.exports = $reflectApply || bind2.call($call, $apply);
+  }
+});
+
+// node_modules/call-bind-apply-helpers/index.js
+var require_call_bind_apply_helpers = __commonJS({
+  "node_modules/call-bind-apply-helpers/index.js"(exports, module2) {
+    "use strict";
+    var bind2 = require_function_bind();
+    var $TypeError = require_type();
+    var $call = require_functionCall();
+    var $actualApply = require_actualApply();
+    module2.exports = function callBindBasic(args) {
+      if (args.length < 1 || typeof args[0] !== "function") {
+        throw new $TypeError("a function is required");
+      }
+      return $actualApply(bind2, $call, args);
+    };
+  }
+});
+
+// node_modules/dunder-proto/get.js
+var require_get = __commonJS({
+  "node_modules/dunder-proto/get.js"(exports, module2) {
+    "use strict";
+    var callBind = require_call_bind_apply_helpers();
+    var gOPD = require_gopd();
+    var hasProtoAccessor;
+    try {
+      hasProtoAccessor = [].__proto__ === Array.prototype;
+    } catch (e) {
+      if (!e || typeof e !== "object" || !("code" in e) || e.code !== "ERR_PROTO_ACCESS") {
+        throw e;
+      }
+    }
+    var desc = !!hasProtoAccessor && gOPD && gOPD(Object.prototype, "__proto__");
+    var $Object = Object;
+    var $getPrototypeOf = $Object.getPrototypeOf;
+    module2.exports = desc && typeof desc.get === "function" ? callBind([desc.get]) : typeof $getPrototypeOf === "function" ? function getDunder(value) {
+      return $getPrototypeOf(value == null ? value : $Object(value));
+    } : false;
+  }
+});
+
+// node_modules/get-proto/index.js
+var require_get_proto = __commonJS({
+  "node_modules/get-proto/index.js"(exports, module2) {
+    "use strict";
+    var reflectGetProto = require_Reflect_getPrototypeOf();
+    var originalGetProto = require_Object_getPrototypeOf();
+    var getDunderProto = require_get();
+    module2.exports = reflectGetProto ? function getProto(O) {
+      return reflectGetProto(O);
+    } : originalGetProto ? function getProto(O) {
+      if (!O || typeof O !== "object" && typeof O !== "function") {
+        throw new TypeError("getProto: not an object");
+      }
+      return originalGetProto(O);
+    } : getDunderProto ? function getProto(O) {
+      return getDunderProto(O);
+    } : null;
+  }
+});
+
 // node_modules/hasown/index.js
 var require_hasown = __commonJS({
   "node_modules/hasown/index.js"(exports, module2) {
@@ -11042,6 +11260,7 @@ var require_get_intrinsic = __commonJS({
   "node_modules/get-intrinsic/index.js"(exports, module2) {
     "use strict";
     var undefined2;
+    var $Object = require_es_object_atoms();
     var $Error = require_es_errors();
     var $EvalError = require_eval();
     var $RangeError = require_range();
@@ -11049,6 +11268,13 @@ var require_get_intrinsic = __commonJS({
     var $SyntaxError = require_syntax();
     var $TypeError = require_type();
     var $URIError = require_uri();
+    var abs = require_abs();
+    var floor = require_floor();
+    var max = require_max();
+    var min = require_min();
+    var pow = require_pow();
+    var round = require_round();
+    var sign = require_sign();
     var $Function = Function;
     var getEvalledConstructor = function(expressionSyntax) {
       try {
@@ -11056,14 +11282,8 @@ var require_get_intrinsic = __commonJS({
       } catch (e) {
       }
     };
-    var $gOPD = Object.getOwnPropertyDescriptor;
-    if ($gOPD) {
-      try {
-        $gOPD({}, "");
-      } catch (e) {
-        $gOPD = null;
-      }
-    }
+    var $gOPD = require_gopd();
+    var $defineProperty = require_es_define_property();
     var throwTypeError = function() {
       throw new $TypeError();
     };
@@ -11080,10 +11300,11 @@ var require_get_intrinsic = __commonJS({
       }
     }() : throwTypeError;
     var hasSymbols = require_has_symbols()();
-    var hasProto = require_has_proto()();
-    var getProto = Object.getPrototypeOf || (hasProto ? function(x) {
-      return x.__proto__;
-    } : null);
+    var getProto = require_get_proto();
+    var $ObjectGPO = require_Object_getPrototypeOf();
+    var $ReflectGPO = require_Reflect_getPrototypeOf();
+    var $apply = require_functionApply();
+    var $call = require_functionCall();
     var needsEval = {};
     var TypedArray = typeof Uint8Array === "undefined" || !getProto ? undefined2 : getProto(Uint8Array);
     var INTRINSICS = {
@@ -11111,6 +11332,7 @@ var require_get_intrinsic = __commonJS({
       "%Error%": $Error,
       "%eval%": eval,
       "%EvalError%": $EvalError,
+      "%Float16Array%": typeof Float16Array === "undefined" ? undefined2 : Float16Array,
       "%Float32Array%": typeof Float32Array === "undefined" ? undefined2 : Float32Array,
       "%Float64Array%": typeof Float64Array === "undefined" ? undefined2 : Float64Array,
       "%FinalizationRegistry%": typeof FinalizationRegistry === "undefined" ? undefined2 : FinalizationRegistry,
@@ -11127,7 +11349,8 @@ var require_get_intrinsic = __commonJS({
       "%MapIteratorPrototype%": typeof Map === "undefined" || !hasSymbols || !getProto ? undefined2 : getProto((/* @__PURE__ */ new Map())[Symbol.iterator]()),
       "%Math%": Math,
       "%Number%": Number,
-      "%Object%": Object,
+      "%Object%": $Object,
+      "%Object.getOwnPropertyDescriptor%": $gOPD,
       "%parseFloat%": parseFloat,
       "%parseInt%": parseInt,
       "%Promise%": typeof Promise === "undefined" ? undefined2 : Promise,
@@ -11153,7 +11376,19 @@ var require_get_intrinsic = __commonJS({
       "%URIError%": $URIError,
       "%WeakMap%": typeof WeakMap === "undefined" ? undefined2 : WeakMap,
       "%WeakRef%": typeof WeakRef === "undefined" ? undefined2 : WeakRef,
-      "%WeakSet%": typeof WeakSet === "undefined" ? undefined2 : WeakSet
+      "%WeakSet%": typeof WeakSet === "undefined" ? undefined2 : WeakSet,
+      "%Function.prototype.call%": $call,
+      "%Function.prototype.apply%": $apply,
+      "%Object.defineProperty%": $defineProperty,
+      "%Object.getPrototypeOf%": $ObjectGPO,
+      "%Math.abs%": abs,
+      "%Math.floor%": floor,
+      "%Math.max%": max,
+      "%Math.min%": min,
+      "%Math.pow%": pow,
+      "%Math.round%": round,
+      "%Math.sign%": sign,
+      "%Reflect.getPrototypeOf%": $ReflectGPO
     };
     if (getProto) {
       try {
@@ -11242,11 +11477,11 @@ var require_get_intrinsic = __commonJS({
     };
     var bind2 = require_function_bind();
     var hasOwn = require_hasown();
-    var $concat = bind2.call(Function.call, Array.prototype.concat);
-    var $spliceApply = bind2.call(Function.apply, Array.prototype.splice);
-    var $replace = bind2.call(Function.call, String.prototype.replace);
-    var $strSlice = bind2.call(Function.call, String.prototype.slice);
-    var $exec = bind2.call(Function.call, RegExp.prototype.exec);
+    var $concat = bind2.call($call, Array.prototype.concat);
+    var $spliceApply = bind2.call($apply, Array.prototype.splice);
+    var $replace = bind2.call($call, String.prototype.replace);
+    var $strSlice = bind2.call($call, String.prototype.slice);
+    var $exec = bind2.call($call, RegExp.prototype.exec);
     var rePropName = /[^%.[\]]+|\[(?:(-?\d+(?:\.\d+)?)|(["'])((?:(?!\2)[^\\]|\\.)*?)\2)\]|(?=(?:\.|\[\])(?:\.|\[\]|%$))/g;
     var reEscapeChar = /\\(\\)?/g;
     var stringToPath = function stringToPath2(string) {
@@ -11350,40 +11585,6 @@ var require_get_intrinsic = __commonJS({
   }
 });
 
-// node_modules/es-define-property/index.js
-var require_es_define_property = __commonJS({
-  "node_modules/es-define-property/index.js"(exports, module2) {
-    "use strict";
-    var GetIntrinsic = require_get_intrinsic();
-    var $defineProperty = GetIntrinsic("%Object.defineProperty%", true) || false;
-    if ($defineProperty) {
-      try {
-        $defineProperty({}, "a", { value: 1 });
-      } catch (e) {
-        $defineProperty = false;
-      }
-    }
-    module2.exports = $defineProperty;
-  }
-});
-
-// node_modules/gopd/index.js
-var require_gopd = __commonJS({
-  "node_modules/gopd/index.js"(exports, module2) {
-    "use strict";
-    var GetIntrinsic = require_get_intrinsic();
-    var $gOPD = GetIntrinsic("%Object.getOwnPropertyDescriptor%", true);
-    if ($gOPD) {
-      try {
-        $gOPD([], "length");
-      } catch (e) {
-        $gOPD = null;
-      }
-    }
-    module2.exports = $gOPD;
-  }
-});
-
 // node_modules/define-data-property/index.js
 var require_define_data_property = __commonJS({
   "node_modules/define-data-property/index.js"(exports, module2) {
@@ -18318,6 +18519,18 @@ var primitives = [
   "number",
   "any"
 ];
+function startsWith(str, match) {
+  return str.substring(0, match.length) === match;
+}
+function endsWith2(str, match) {
+  return str.length >= match.length && str.substring(str.length - match.length) === match;
+}
+var nullableSuffix = " | null";
+var optionalSuffix = " | undefined";
+var arrayPrefix = "Array<";
+var arraySuffix = ">";
+var mapPrefix = "{ [key: string]: ";
+var mapSuffix = "; }";
 var ObjectSerializer = class {
   static findCorrectType(data, expectedType) {
     if (data == void 0) {
@@ -18362,15 +18575,27 @@ var ObjectSerializer = class {
       return data;
     } else if (primitives.indexOf(type.toLowerCase()) !== -1) {
       return data;
-    } else if (type.lastIndexOf("Array<", 0) === 0) {
-      let subType = type.replace("Array<", "");
-      subType = subType.substring(0, subType.length - 1);
+    } else if (endsWith2(type, nullableSuffix)) {
+      let subType = type.slice(0, -nullableSuffix.length);
+      return ObjectSerializer.serialize(data, subType);
+    } else if (endsWith2(type, optionalSuffix)) {
+      let subType = type.slice(0, -optionalSuffix.length);
+      return ObjectSerializer.serialize(data, subType);
+    } else if (startsWith(type, arrayPrefix)) {
+      let subType = type.slice(arrayPrefix.length, -arraySuffix.length);
       let transformedData = [];
       for (let index = 0; index < data.length; index++) {
         let datum = data[index];
         transformedData.push(ObjectSerializer.serialize(datum, subType));
       }
       return transformedData;
+    } else if (startsWith(type, mapPrefix)) {
+      let subType = type.slice(mapPrefix.length, -mapSuffix.length);
+      let transformedData = {};
+      for (let key in data) {
+        transformedData[key] = ObjectSerializer.serialize(data[key], subType);
+      }
+      return transformedData;
     } else if (type === "Date") {
       return data.toISOString();
     } else {
@@ -18402,15 +18627,27 @@ var ObjectSerializer = class {
       return data;
     } else if (primitives.indexOf(type.toLowerCase()) !== -1) {
       return data;
-    } else if (type.lastIndexOf("Array<", 0) === 0) {
-      let subType = type.replace("Array<", "");
-      subType = subType.substring(0, subType.length - 1);
+    } else if (endsWith2(type, nullableSuffix)) {
+      let subType = type.slice(0, -nullableSuffix.length);
+      return ObjectSerializer.deserialize(data, subType);
+    } else if (endsWith2(type, optionalSuffix)) {
+      let subType = type.slice(0, -optionalSuffix.length);
+      return ObjectSerializer.deserialize(data, subType);
+    } else if (startsWith(type, arrayPrefix)) {
+      let subType = type.slice(arrayPrefix.length, -arraySuffix.length);
       let transformedData = [];
       for (let index = 0; index < data.length; index++) {
         let datum = data[index];
         transformedData.push(ObjectSerializer.deserialize(datum, subType));
       }
       return transformedData;
+    } else if (startsWith(type, mapPrefix)) {
+      let subType = type.slice(mapPrefix.length, -mapSuffix.length);
+      let transformedData = {};
+      for (let key in data) {
+        transformedData[key] = ObjectSerializer.deserialize(data[key], subType);
+      }
+      return transformedData;
     } else if (type === "Date") {
       return new Date(data);
     } else {
@@ -21088,7 +21325,9 @@ SubFormFieldRuleAction.attributeTypeMap = [
 ((SubFormFieldRuleAction2) => {
   let TypeEnum;
   ((TypeEnum2) => {
+    TypeEnum2["ChangeFieldVisibility"] = "change-field-visibility";
     TypeEnum2["FieldVisibility"] = "change-field-visibility";
+    TypeEnum2["ChangeGroupVisibility"] = "change-group-visibility";
     TypeEnum2["GroupVisibility"] = "change-group-visibility";
   })(TypeEnum = SubFormFieldRuleAction2.TypeEnum || (SubFormFieldRuleAction2.TypeEnum = {}));
 })(SubFormFieldRuleAction || (SubFormFieldRuleAction = {}));
@@ -34214,7 +34453,7 @@ var HttpError = class extends Error {
 var queryParamsSerializer = (params) => {
   return import_qs.default.stringify(params, { arrayFormat: "brackets" });
 };
-var USER_AGENT = "OpenAPI-Generator/1.8-dev/node";
+var USER_AGENT = "OpenAPI-Generator/1.8.1-dev/node";
 var generateFormData = (obj, typemap) => {
   const data = {};
   let localVarUseFormData = false;
diff --git a/sdks/node/model/models.ts b/sdks/node/model/models.ts
index 3f6c346c4..5db056983 100644
--- a/sdks/node/model/models.ts
+++ b/sdks/node/model/models.ts
@@ -36,6 +36,26 @@ let primitives = [
   "any",
 ];
 
+// Check if a string starts with another string without using es6 features
+function startsWith(str: string, match: string): boolean {
+  return str.substring(0, match.length) === match;
+}
+
+// Check if a string ends with another string without using es6 features
+function endsWith(str: string, match: string): boolean {
+  return (
+    str.length >= match.length &&
+    str.substring(str.length - match.length) === match
+  );
+}
+
+const nullableSuffix = " | null";
+const optionalSuffix = " | undefined";
+const arrayPrefix = "Array<";
+const arraySuffix = ">";
+const mapPrefix = "{ [key: string]: ";
+const mapSuffix = "; }";
+
 export class ObjectSerializer {
   public static findCorrectType(data: any, expectedType: string) {
     if (data == undefined) {
@@ -83,21 +103,32 @@ export class ObjectSerializer {
     }
   }
 
-  public static serialize(data: any, type: string) {
+  public static serialize(data: any, type: string): any {
     if (data == undefined) {
       return data;
     } else if (primitives.indexOf(type.toLowerCase()) !== -1) {
       return data;
-    } else if (type.lastIndexOf("Array<", 0) === 0) {
-      // string.startsWith pre es6
-      let subType: string = type.replace("Array<", ""); // Array<Type> => Type>
-      subType = subType.substring(0, subType.length - 1); // Type> => Type
+    } else if (endsWith(type, nullableSuffix)) {
+      let subType: string = type.slice(0, -nullableSuffix.length); // Type | null => Type
+      return ObjectSerializer.serialize(data, subType);
+    } else if (endsWith(type, optionalSuffix)) {
+      let subType: string = type.slice(0, -optionalSuffix.length); // Type | undefined => Type
+      return ObjectSerializer.serialize(data, subType);
+    } else if (startsWith(type, arrayPrefix)) {
+      let subType: string = type.slice(arrayPrefix.length, -arraySuffix.length); // Array<Type> => Type
       let transformedData: any[] = [];
       for (let index = 0; index < data.length; index++) {
         let datum = data[index];
         transformedData.push(ObjectSerializer.serialize(datum, subType));
       }
       return transformedData;
+    } else if (startsWith(type, mapPrefix)) {
+      let subType: string = type.slice(mapPrefix.length, -mapSuffix.length); // { [key: string]: Type; } => Type
+      let transformedData: { [key: string]: any } = {};
+      for (let key in data) {
+        transformedData[key] = ObjectSerializer.serialize(data[key], subType);
+      }
+      return transformedData;
     } else if (type === "Date") {
       return data.toISOString();
     } else {
@@ -131,23 +162,34 @@ export class ObjectSerializer {
     }
   }
 
-  public static deserialize(data: any, type: string) {
+  public static deserialize(data: any, type: string): any {
     // polymorphism may change the actual type.
     type = ObjectSerializer.findCorrectType(data, type);
     if (data == undefined) {
       return data;
     } else if (primitives.indexOf(type.toLowerCase()) !== -1) {
       return data;
-    } else if (type.lastIndexOf("Array<", 0) === 0) {
-      // string.startsWith pre es6
-      let subType: string = type.replace("Array<", ""); // Array<Type> => Type>
-      subType = subType.substring(0, subType.length - 1); // Type> => Type
+    } else if (endsWith(type, nullableSuffix)) {
+      let subType: string = type.slice(0, -nullableSuffix.length); // Type | null => Type
+      return ObjectSerializer.deserialize(data, subType);
+    } else if (endsWith(type, optionalSuffix)) {
+      let subType: string = type.slice(0, -optionalSuffix.length); // Type | undefined => Type
+      return ObjectSerializer.deserialize(data, subType);
+    } else if (startsWith(type, arrayPrefix)) {
+      let subType: string = type.slice(arrayPrefix.length, -arraySuffix.length); // Array<Type> => Type
       let transformedData: any[] = [];
       for (let index = 0; index < data.length; index++) {
         let datum = data[index];
         transformedData.push(ObjectSerializer.deserialize(datum, subType));
       }
       return transformedData;
+    } else if (startsWith(type, mapPrefix)) {
+      let subType: string = type.slice(mapPrefix.length, -mapSuffix.length); // { [key: string]: Type; } => Type
+      let transformedData: { [key: string]: any } = {};
+      for (let key in data) {
+        transformedData[key] = ObjectSerializer.deserialize(data[key], subType);
+      }
+      return transformedData;
     } else if (type === "Date") {
       return new Date(data);
     } else {
diff --git a/sdks/node/model/signatureRequestSendRequest.ts b/sdks/node/model/signatureRequestSendRequest.ts
index 63ec9cc6d..75720c17b 100644
--- a/sdks/node/model/signatureRequestSendRequest.ts
+++ b/sdks/node/model/signatureRequestSendRequest.ts
@@ -93,6 +93,8 @@ export class SignatureRequestSendRequest {
   "hideTextTags"?: boolean = false;
   /**
    * Send with a value of `true` if you wish to enable [Qualified Electronic Signatures](https://www.hellosign.com/features/qualified-electronic-signatures) (QES), which requires a face-to-face call to verify the signer\'s identity.<br> **NOTE:** QES is only available on the Premium API plan as an add-on purchase. Cannot be used in `test_mode`. Only works on requests with one signer.
+   *
+   * @deprecated
    */
   "isQualifiedSignature"?: boolean = false;
   /**
diff --git a/sdks/node/model/signatureRequestSendWithTemplateRequest.ts b/sdks/node/model/signatureRequestSendWithTemplateRequest.ts
index 2a3dbb8ea..12232a129 100644
--- a/sdks/node/model/signatureRequestSendWithTemplateRequest.ts
+++ b/sdks/node/model/signatureRequestSendWithTemplateRequest.ts
@@ -66,6 +66,8 @@ export class SignatureRequestSendWithTemplateRequest {
   "fileUrls"?: Array<string>;
   /**
    * Send with a value of `true` if you wish to enable [Qualified Electronic Signatures](https://www.hellosign.com/features/qualified-electronic-signatures) (QES), which requires a face-to-face call to verify the signer\'s identity.<br> **NOTE:** QES is only available on the Premium API plan as an add-on purchase. Cannot be used in `test_mode`. Only works on requests with one signer.
+   *
+   * @deprecated
    */
   "isQualifiedSignature"?: boolean = false;
   /**
diff --git a/sdks/node/model/subFormFieldRuleAction.ts b/sdks/node/model/subFormFieldRuleAction.ts
index 43ec2545f..d1fe6f0ec 100644
--- a/sdks/node/model/subFormFieldRuleAction.ts
+++ b/sdks/node/model/subFormFieldRuleAction.ts
@@ -76,7 +76,9 @@ export class SubFormFieldRuleAction {
 
 export namespace SubFormFieldRuleAction {
   export enum TypeEnum {
+    ChangeFieldVisibility = "change-field-visibility",
     FieldVisibility = "change-field-visibility",
+    ChangeGroupVisibility = "change-group-visibility",
     GroupVisibility = "change-group-visibility",
   }
 }
diff --git a/sdks/node/model/templateCreateEmbeddedDraftResponseTemplate.ts b/sdks/node/model/templateCreateEmbeddedDraftResponseTemplate.ts
index af7f9a71b..d74b06aed 100644
--- a/sdks/node/model/templateCreateEmbeddedDraftResponseTemplate.ts
+++ b/sdks/node/model/templateCreateEmbeddedDraftResponseTemplate.ts
@@ -43,6 +43,8 @@ export class TemplateCreateEmbeddedDraftResponseTemplate {
   "expiresAt"?: number;
   /**
    * A list of warnings.
+   *
+   * @deprecated
    */
   "warnings"?: Array<WarningResponse>;
 
diff --git a/sdks/node/model/templateResponse.ts b/sdks/node/model/templateResponse.ts
index 4c4b99226..298db4670 100644
--- a/sdks/node/model/templateResponse.ts
+++ b/sdks/node/model/templateResponse.ts
@@ -85,10 +85,14 @@ export class TemplateResponse {
   "documents"?: Array<TemplateResponseDocument>;
   /**
    * Deprecated. Use `custom_fields` inside the [documents](https://developers.hellosign.com/api/reference/operation/templateGet/#!c=200&path=template/documents&t=response) array instead.
+   *
+   * @deprecated
    */
   "customFields"?: Array<TemplateResponseDocumentCustomFieldBase> | null;
   /**
    * Deprecated. Use `form_fields` inside the [documents](https://developers.hellosign.com/api/reference/operation/templateGet/#!c=200&path=template/documents&t=response) array instead.
+   *
+   * @deprecated
    */
   "namedFormFields"?: Array<TemplateResponseDocumentFormFieldBase> | null;
   /**
diff --git a/sdks/node/model/templateUpdateFilesResponseTemplate.ts b/sdks/node/model/templateUpdateFilesResponseTemplate.ts
index 98e18dabc..2d32cb3b0 100644
--- a/sdks/node/model/templateUpdateFilesResponseTemplate.ts
+++ b/sdks/node/model/templateUpdateFilesResponseTemplate.ts
@@ -35,6 +35,8 @@ export class TemplateUpdateFilesResponseTemplate {
   "templateId"?: string;
   /**
    * A list of warnings.
+   *
+   * @deprecated
    */
   "warnings"?: Array<WarningResponse>;
 
diff --git a/sdks/node/openapi-config.yaml b/sdks/node/openapi-config.yaml
index e7dabc881..36b2bde68 100644
--- a/sdks/node/openapi-config.yaml
+++ b/sdks/node/openapi-config.yaml
@@ -2,7 +2,7 @@ generatorName: typescript-node
 typeMappings: {}
 additionalProperties:
   npmName: "@dropbox/sign"
-  npmVersion: 1.8-dev
+  npmVersion: 1.8.1-dev
   supportsES6: true
   apiDocPath: ./docs/api
   modelDocPath: ./docs/model
diff --git a/sdks/node/package-lock.json b/sdks/node/package-lock.json
index 45782de4c..858c48267 100644
--- a/sdks/node/package-lock.json
+++ b/sdks/node/package-lock.json
@@ -1,12 +1,12 @@
 {
     "name": "@dropbox/sign",
-    "version": "1.8-dev",
+    "version": "1.8.1-dev",
     "lockfileVersion": 3,
     "requires": true,
     "packages": {
         "": {
             "name": "@dropbox/sign",
-            "version": "1.8-dev",
+            "version": "1.8.1-dev",
             "dependencies": {
                 "axios": "^1.7.0",
                 "bluebird": "^3.7.2",
@@ -1112,9 +1112,9 @@
             "dev": true
         },
         "node_modules/@types/node": {
-            "version": "20.16.1",
-            "resolved": "https://registry.npmjs.org/@types/node/-/node-20.16.1.tgz",
-            "integrity": "sha512-zJDo7wEadFtSyNz5QITDfRcrhqDvQI1xQNQ0VoizPjM/dVAODqqIUWbJPkvsxmTI0MYRGRikcdjMPhOssnPejQ==",
+            "version": "20.17.24",
+            "resolved": "https://registry.npmjs.org/@types/node/-/node-20.17.24.tgz",
+            "integrity": "sha512-d7fGCyB96w9BnWQrOsJtpyiSaBcAYYr75bnK6ZRjDbql2cGLj/3GsL5OYmLPNq76l7Gf2q4Rv9J2o6h5CrD9sA==",
             "dev": true,
             "dependencies": {
                 "undici-types": "~6.19.2"
@@ -1492,6 +1492,19 @@
                 "url": "https://github.com/sponsors/ljharb"
             }
         },
+        "node_modules/call-bind-apply-helpers": {
+            "version": "1.0.2",
+            "resolved": "https://registry.npmjs.org/call-bind-apply-helpers/-/call-bind-apply-helpers-1.0.2.tgz",
+            "integrity": "sha512-Sp1ablJ0ivDkSzjcaJdxEunN5/XvksFJ2sMBFfq6x0ryhQV/2b/KwFe21cMpmHtPOSij8K99/wSfoEuTObmuMQ==",
+            "license": "MIT",
+            "dependencies": {
+                "es-errors": "^1.3.0",
+                "function-bind": "^1.1.2"
+            },
+            "engines": {
+                "node": ">= 0.4"
+            }
+        },
         "node_modules/callsites": {
             "version": "3.1.0",
             "resolved": "https://registry.npmjs.org/callsites/-/callsites-3.1.0.tgz",
@@ -1832,6 +1845,20 @@
                 "node": ">=0.4.0"
             }
         },
+        "node_modules/dunder-proto": {
+            "version": "1.0.1",
+            "resolved": "https://registry.npmjs.org/dunder-proto/-/dunder-proto-1.0.1.tgz",
+            "integrity": "sha512-KIN/nDJBQRcXw0MLVhZE9iQHmG68qAVIBg9CqmUYjmQIhgij9U5MFvrqkUL5FbtyyzZuOeOt0zdeRe4UY7ct+A==",
+            "license": "MIT",
+            "dependencies": {
+                "call-bind-apply-helpers": "^1.0.1",
+                "es-errors": "^1.3.0",
+                "gopd": "^1.2.0"
+            },
+            "engines": {
+                "node": ">= 0.4"
+            }
+        },
         "node_modules/ejs": {
             "version": "3.1.10",
             "resolved": "https://registry.npmjs.org/ejs/-/ejs-3.1.10.tgz",
@@ -1881,12 +1908,10 @@
             }
         },
         "node_modules/es-define-property": {
-            "version": "1.0.0",
-            "resolved": "https://registry.npmjs.org/es-define-property/-/es-define-property-1.0.0.tgz",
-            "integrity": "sha512-jxayLKShrEqqzJ0eumQbVhTYQM27CfT1T35+gCgDFoL82JLsXqTJ76zv6A0YLOgEnLUMvLzsDsGIrl8NFpT2gQ==",
-            "dependencies": {
-                "get-intrinsic": "^1.2.4"
-            },
+            "version": "1.0.1",
+            "resolved": "https://registry.npmjs.org/es-define-property/-/es-define-property-1.0.1.tgz",
+            "integrity": "sha512-e3nRfgfUZ4rNGL232gUgX06QNyyez04KdjFrF+LTRoOXmrOgFKDg4BCdsjW8EnT69eqdYGmRpJwiPVYNrCaW3g==",
+            "license": "MIT",
             "engines": {
                 "node": ">= 0.4"
             }
@@ -1899,6 +1924,18 @@
                 "node": ">= 0.4"
             }
         },
+        "node_modules/es-object-atoms": {
+            "version": "1.1.1",
+            "resolved": "https://registry.npmjs.org/es-object-atoms/-/es-object-atoms-1.1.1.tgz",
+            "integrity": "sha512-FGgH2h8zKNim9ljj7dankFPcICIK9Cp5bm+c2gQSYePhpaG5+esrLODihIorn+Pe6FGJzWhXQotPv73jTaldXA==",
+            "license": "MIT",
+            "dependencies": {
+                "es-errors": "^1.3.0"
+            },
+            "engines": {
+                "node": ">= 0.4"
+            }
+        },
         "node_modules/es5-ext": {
             "version": "0.10.64",
             "resolved": "https://registry.npmjs.org/es5-ext/-/es5-ext-0.10.64.tgz",
@@ -2287,15 +2324,21 @@
             }
         },
         "node_modules/get-intrinsic": {
-            "version": "1.2.4",
-            "resolved": "https://registry.npmjs.org/get-intrinsic/-/get-intrinsic-1.2.4.tgz",
-            "integrity": "sha512-5uYhsJH8VJBTv7oslg4BznJYhDoRI6waYCxMmCdnTrcCrHA/fCFKoTFz2JKKE0HdDFUF7/oQuhzumXJK7paBRQ==",
+            "version": "1.3.0",
+            "resolved": "https://registry.npmjs.org/get-intrinsic/-/get-intrinsic-1.3.0.tgz",
+            "integrity": "sha512-9fSjSaos/fRIVIp+xSJlE6lfwhES7LNtKaCBIamHsjr2na1BiABJPo0mOjjz8GJDURarmCPGqaiVg5mfjb98CQ==",
+            "license": "MIT",
             "dependencies": {
+                "call-bind-apply-helpers": "^1.0.2",
+                "es-define-property": "^1.0.1",
                 "es-errors": "^1.3.0",
+                "es-object-atoms": "^1.1.1",
                 "function-bind": "^1.1.2",
-                "has-proto": "^1.0.1",
-                "has-symbols": "^1.0.3",
-                "hasown": "^2.0.0"
+                "get-proto": "^1.0.1",
+                "gopd": "^1.2.0",
+                "has-symbols": "^1.1.0",
+                "hasown": "^2.0.2",
+                "math-intrinsics": "^1.1.0"
             },
             "engines": {
                 "node": ">= 0.4"
@@ -2313,6 +2356,19 @@
                 "node": ">=8.0.0"
             }
         },
+        "node_modules/get-proto": {
+            "version": "1.0.1",
+            "resolved": "https://registry.npmjs.org/get-proto/-/get-proto-1.0.1.tgz",
+            "integrity": "sha512-sTSfBjoXBp89JvIKIefqw7U2CCebsc74kiY6awiGogKtoSGbgjYE/G/+l9sF3MWFPNc9IcoOC4ODfKHfxFmp0g==",
+            "license": "MIT",
+            "dependencies": {
+                "dunder-proto": "^1.0.1",
+                "es-object-atoms": "^1.0.0"
+            },
+            "engines": {
+                "node": ">= 0.4"
+            }
+        },
         "node_modules/get-stream": {
             "version": "6.0.1",
             "resolved": "https://registry.npmjs.org/get-stream/-/get-stream-6.0.1.tgz",
@@ -2356,11 +2412,12 @@
             }
         },
         "node_modules/gopd": {
-            "version": "1.0.1",
-            "resolved": "https://registry.npmjs.org/gopd/-/gopd-1.0.1.tgz",
-            "integrity": "sha512-d65bNlIadxvpb/A2abVdlqKqV563juRnZ1Wtk6s1sIR8uNsXR70xqIzVqxVf1eTqDunwT2MkczEeaezCKTZhwA==",
-            "dependencies": {
-                "get-intrinsic": "^1.1.3"
+            "version": "1.2.0",
+            "resolved": "https://registry.npmjs.org/gopd/-/gopd-1.2.0.tgz",
+            "integrity": "sha512-ZUKRh6/kUFoAiTAtTYPZJ3hw9wNxx+BIBOijnlG9PnrJsCcSjs1wyyD6vJpaYtgnzDrKYRSqf3OO6Rfa93xsRg==",
+            "license": "MIT",
+            "engines": {
+                "node": ">= 0.4"
             },
             "funding": {
                 "url": "https://github.com/sponsors/ljharb"
@@ -2392,21 +2449,11 @@
                 "url": "https://github.com/sponsors/ljharb"
             }
         },
-        "node_modules/has-proto": {
-            "version": "1.0.3",
-            "resolved": "https://registry.npmjs.org/has-proto/-/has-proto-1.0.3.tgz",
-            "integrity": "sha512-SJ1amZAJUiZS+PhsVLf5tGydlaVB8EdFpaSO4gmiUKUOxk8qzn5AIy4ZeJUmh22znIdk/uMAUT2pl3FxzVUH+Q==",
-            "engines": {
-                "node": ">= 0.4"
-            },
-            "funding": {
-                "url": "https://github.com/sponsors/ljharb"
-            }
-        },
         "node_modules/has-symbols": {
-            "version": "1.0.3",
-            "resolved": "https://registry.npmjs.org/has-symbols/-/has-symbols-1.0.3.tgz",
-            "integrity": "sha512-l3LCuF6MgDNwTDKkdYGEihYjt5pRPbEg46rtlmnSPlUbgmB8LOIrKJbYYFBSbnPaJexMKtiPO8hmeRjRz2Td+A==",
+            "version": "1.1.0",
+            "resolved": "https://registry.npmjs.org/has-symbols/-/has-symbols-1.1.0.tgz",
+            "integrity": "sha512-1cDNdwJ2Jaohmb3sg4OmKaMBwuC48sYni5HUw2DvsC8LjGTLK9h+eb1X6RyuOHe4hT0ULCW68iomhjUoKUqlPQ==",
+            "license": "MIT",
             "engines": {
                 "node": ">= 0.4"
             },
@@ -3417,6 +3464,15 @@
                 "tmpl": "1.0.5"
             }
         },
+        "node_modules/math-intrinsics": {
+            "version": "1.1.0",
+            "resolved": "https://registry.npmjs.org/math-intrinsics/-/math-intrinsics-1.1.0.tgz",
+            "integrity": "sha512-/IXtbwEk5HTPyEwyKX6hGkYXxM9nbj64B+ilVJnC/R6B0pH5G4V3b0pVbL7DBj4tkhBAppbQUlf6F6Xl9LHu1g==",
+            "license": "MIT",
+            "engines": {
+                "node": ">= 0.4"
+            }
+        },
         "node_modules/memoizee": {
             "version": "0.4.17",
             "resolved": "https://registry.npmjs.org/memoizee/-/memoizee-0.4.17.tgz",
diff --git a/sdks/node/package.json b/sdks/node/package.json
index 8800697af..c6b26b114 100644
--- a/sdks/node/package.json
+++ b/sdks/node/package.json
@@ -1,6 +1,6 @@
 {
     "name": "@dropbox/sign",
-    "version": "1.8-dev",
+    "version": "1.8.1-dev",
     "description": "Official Node client for Dropbox Sign",
     "repository": {
         "type": "git",
diff --git a/sdks/node/run-build b/sdks/node/run-build
index 09afd7e37..7a26bec0b 100755
--- a/sdks/node/run-build
+++ b/sdks/node/run-build
@@ -22,7 +22,7 @@ rm -f "${DIR}/types/model/"*.ts
 docker run --rm \
   -v "${DIR}/:/local" \
   --user "$(id -u):$(id -g)" \
-  openapitools/openapi-generator-cli:v7.8.0 generate \
+  openapitools/openapi-generator-cli:v7.12.0 generate \
     -i "/local/openapi-sdk.yaml" \
     -c "/local/openapi-config.yaml" \
     -t "/local/templates" \
@@ -102,6 +102,9 @@ docker run --rm \
   -w "${WORKING_DIR}" \
   perl bash ./bin/scan_for
 
+printf "Adding old-style constant names ...\n"
+bash "${DIR}/bin/php" ./bin/copy-constants.php
+
 printf "Running build ...\n"
 bash "${DIR}/bin/node" npm run build
 bash "${DIR}/bin/node" npm run build-types
diff --git a/sdks/node/templates/api-single.mustache b/sdks/node/templates/api-single.mustache
index cd57b314c..da9213701 100644
--- a/sdks/node/templates/api-single.mustache
+++ b/sdks/node/templates/api-single.mustache
@@ -201,6 +201,10 @@ export class {{classname}} {
      {{#allParams}}
      * @param {{paramName}} {{description}}
      {{/allParams}}
+     {{#isDeprecated}}
+     *
+     * @deprecated
+     {{/isDeprecated}}
 {{#useCustomTemplateCode}}
      * @param options
 {{/useCustomTemplateCode}}
diff --git a/sdks/node/templates/model.mustache b/sdks/node/templates/model.mustache
index a55b8f195..efc79f496 100644
--- a/sdks/node/templates/model.mustache
+++ b/sdks/node/templates/model.mustache
@@ -27,9 +27,20 @@ export {{#vendorExtensions.x-base-class}}abstract {{/vendorExtensions.x-base-cla
 {{#description}}
     /**
     * {{{.}}}
+    {{#deprecated}}
+    *
+    * @deprecated
+    {{/deprecated}}
     */
 {{/description}}
 {{^useCustomTemplateCode}}
+{{^description}}
+    {{#deprecated}}
+    /**
+    * @deprecated
+    */
+    {{/deprecated}}
+{{/description}}
     '{{name}}'{{^required}}?{{/required}}: {{#isEnum}}{{{datatypeWithEnum}}}{{/isEnum}}{{^isEnum}}{{{dataType}}}{{#isNullable}} | null{{/isNullable}}{{/isEnum}}{{#defaultValue}} = {{#isEnum}}{{classname}}.{{/isEnum}}{{{.}}}{{/defaultValue}};
 {{/useCustomTemplateCode}}
 {{#useCustomTemplateCode}}
diff --git a/sdks/node/templates/models.mustache b/sdks/node/templates/models.mustache
index 8443f9341..4285d09ec 100644
--- a/sdks/node/templates/models.mustache
+++ b/sdks/node/templates/models.mustache
@@ -100,6 +100,23 @@ let typeMap: {[index: string]: any} = {
     {{/models}}
 }
 {{/useCustomTemplateCode}}
+// Check if a string starts with another string without using es6 features
+function startsWith(str: string, match: string): boolean {
+    return str.substring(0, match.length) === match;
+}
+
+// Check if a string ends with another string without using es6 features
+function endsWith(str: string, match: string): boolean {
+    return str.length >= match.length && str.substring(str.length - match.length) === match;
+}
+
+const nullableSuffix = " | null";
+const optionalSuffix = " | undefined";
+const arrayPrefix = "Array<";
+const arraySuffix = ">";
+const mapPrefix = "{ [key: string]: ";
+const mapSuffix = "; }";
+
 export class ObjectSerializer {
     public static findCorrectType(data: any, expectedType: string) {
         if (data == undefined) {
@@ -150,20 +167,35 @@ export class ObjectSerializer {
         }
     }
 
-    public static serialize(data: any, type: string) {
+    public static serialize(data: any, type: string): any {
         if (data == undefined) {
             return data;
         } else if (primitives.indexOf(type.toLowerCase()) !== -1) {
             return data;
-        } else if (type.lastIndexOf("Array<", 0) === 0) { // string.startsWith pre es6
-            let subType: string = type.replace("Array<", ""); // Array<Type> => Type>
-            subType = subType.substring(0, subType.length - 1); // Type> => Type
+        } else if (endsWith(type, nullableSuffix)) {
+            let subType: string = type.slice(0, -nullableSuffix.length); // Type | null => Type
+            return ObjectSerializer.serialize(data, subType);
+        } else if (endsWith(type, optionalSuffix)) {
+            let subType: string = type.slice(0, -optionalSuffix.length); // Type | undefined => Type
+            return ObjectSerializer.serialize(data, subType);
+        } else if (startsWith(type, arrayPrefix)) {
+            let subType: string = type.slice(arrayPrefix.length, -arraySuffix.length); // Array<Type> => Type
             let transformedData: any[] = [];
             for (let index = 0; index < data.length; index++) {
                 let datum = data[index];
                 transformedData.push(ObjectSerializer.serialize(datum, subType));
             }
             return transformedData;
+        } else if (startsWith(type, mapPrefix)) {
+            let subType: string = type.slice(mapPrefix.length, -mapSuffix.length); // { [key: string]: Type; } => Type
+            let transformedData: { [key: string]: any } = {};
+            for (let key in data) {
+                transformedData[key] = ObjectSerializer.serialize(
+                    data[key],
+                    subType,
+                );
+            }
+            return transformedData;
         } else if (type === "Date") {
             return data.toISOString();
         } else {
@@ -198,22 +230,37 @@ export class ObjectSerializer {
         }
     }
 
-    public static deserialize(data: any, type: string) {
+    public static deserialize(data: any, type: string): any {
         // polymorphism may change the actual type.
         type = ObjectSerializer.findCorrectType(data, type);
         if (data == undefined) {
             return data;
         } else if (primitives.indexOf(type.toLowerCase()) !== -1) {
             return data;
-        } else if (type.lastIndexOf("Array<", 0) === 0) { // string.startsWith pre es6
-            let subType: string = type.replace("Array<", ""); // Array<Type> => Type>
-            subType = subType.substring(0, subType.length - 1); // Type> => Type
+        } else if (endsWith(type, nullableSuffix)) {
+            let subType: string = type.slice(0, -nullableSuffix.length); // Type | null => Type
+            return ObjectSerializer.deserialize(data, subType);
+        } else if (endsWith(type, optionalSuffix)) {
+            let subType: string = type.slice(0, -optionalSuffix.length); // Type | undefined => Type
+            return ObjectSerializer.deserialize(data, subType);
+        } else if (startsWith(type, arrayPrefix)) {
+            let subType: string = type.slice(arrayPrefix.length, -arraySuffix.length); // Array<Type> => Type
             let transformedData: any[] = [];
             for (let index = 0; index < data.length; index++) {
                 let datum = data[index];
                 transformedData.push(ObjectSerializer.deserialize(datum, subType));
             }
             return transformedData;
+        } else if (startsWith(type, mapPrefix)) {
+            let subType: string = type.slice(mapPrefix.length, -mapSuffix.length); // { [key: string]: Type; } => Type
+            let transformedData: { [key: string]: any } = {};
+            for (let key in data) {
+                transformedData[key] = ObjectSerializer.deserialize(
+                    data[key],
+                    subType,
+                );
+            }
+            return transformedData;
         } else if (type === "Date") {
             return new Date(data);
         } else {
diff --git a/sdks/node/types/api/apis.d.ts b/sdks/node/types/api/apis.d.ts
index abe56f276..843716cb2 100644
--- a/sdks/node/types/api/apis.d.ts
+++ b/sdks/node/types/api/apis.d.ts
@@ -23,7 +23,7 @@ export interface returnTypeI {
     body?: any;
 }
 export declare const queryParamsSerializer: (params: any) => string;
-export declare const USER_AGENT = "OpenAPI-Generator/1.8-dev/node";
+export declare const USER_AGENT = "OpenAPI-Generator/1.8.1-dev/node";
 export declare const generateFormData: (obj: any, typemap: AttributeTypeMap) => {
     localVarUseFormData: boolean;
     data: object;
diff --git a/sdks/node/types/model/subFormFieldRuleAction.d.ts b/sdks/node/types/model/subFormFieldRuleAction.d.ts
index 43122776f..650f98673 100644
--- a/sdks/node/types/model/subFormFieldRuleAction.d.ts
+++ b/sdks/node/types/model/subFormFieldRuleAction.d.ts
@@ -11,7 +11,9 @@ export declare class SubFormFieldRuleAction {
 }
 export declare namespace SubFormFieldRuleAction {
     enum TypeEnum {
+        ChangeFieldVisibility = "change-field-visibility",
         FieldVisibility = "change-field-visibility",
+        ChangeGroupVisibility = "change-group-visibility",
         GroupVisibility = "change-group-visibility"
     }
 }