diff --git a/conformance/results/mypy/generics_defaults.toml b/conformance/results/mypy/generics_defaults.toml
index 7c73b68e..bc4145c4 100644
--- a/conformance/results/mypy/generics_defaults.toml
+++ b/conformance/results/mypy/generics_defaults.toml
@@ -12,19 +12,19 @@ generics_defaults.py:55: error: Expression is of type "type[AllTheDefaults[int,
 generics_defaults.py:59: error: Expression is of type "type[AllTheDefaults[int, complex, str, int, DefaultBoolT]]", not "type[AllTheDefaults[int, complex, str, int, bool]]"  [assert-type]
 generics_defaults.py:79: error: Expression is of type "type[Class_ParamSpec[DefaultP]]", not "type[Class_ParamSpec[[str, int]]]"  [assert-type]
 generics_defaults.py:94: error: Expression is of type "type[Class_TypeVarTuple[*DefaultTs]]", not "type[Class_TypeVarTuple[str, int]]"  [assert-type]
-generics_defaults.py:104: error: TypeVar default must be a subtype of the bound type  [misc]
-generics_defaults.py:111: error: TypeVar default must be one of the constraint types  [misc]
-generics_defaults.py:151: error: Expression is of type "type[Foo6[*tuple[Any, ...], Any]]", not "type[Foo6[int, str, [float, bool]]]"  [assert-type]
-generics_defaults.py:151: error: Can only replace ParamSpec with a parameter types list or another ParamSpec, got "str"  [misc]
-generics_defaults.py:152: error: Expression is of type "type[Foo6[*tuple[Any, ...], Any]]", not "type[Foo6[int, str, [bytes]]]"  [assert-type]
-generics_defaults.py:152: error: Can only replace ParamSpec with a parameter types list or another ParamSpec, got "str"  [misc]
-generics_defaults.py:166: error: Expression is of type "Callable[[Self], Self]", not "Callable[[Foo7[int]], Foo7[int]]"  [assert-type]
-generics_defaults.py:167: error: Expression is of type "Any", not "int"  [assert-type]
-generics_defaults.py:167: error: Access to generic instance variables via class is ambiguous  [misc]
+generics_defaults.py:107: error: TypeVar default must be a subtype of the bound type  [misc]
+generics_defaults.py:114: error: TypeVar default must be one of the constraint types  [misc]
+generics_defaults.py:154: error: Expression is of type "type[Foo6[*tuple[Any, ...], Any]]", not "type[Foo6[int, str, [float, bool]]]"  [assert-type]
+generics_defaults.py:154: error: Can only replace ParamSpec with a parameter types list or another ParamSpec, got "str"  [misc]
+generics_defaults.py:155: error: Expression is of type "type[Foo6[*tuple[Any, ...], Any]]", not "type[Foo6[int, str, [bytes]]]"  [assert-type]
+generics_defaults.py:155: error: Can only replace ParamSpec with a parameter types list or another ParamSpec, got "str"  [misc]
+generics_defaults.py:169: error: Expression is of type "Callable[[Self], Self]", not "Callable[[Foo7[int]], Foo7[int]]"  [assert-type]
+generics_defaults.py:170: error: Expression is of type "Any", not "int"  [assert-type]
+generics_defaults.py:170: error: Access to generic instance variables via class is ambiguous  [misc]
 """
 conformance_automated = "Fail"
 errors_diff = """
-Line 138: Expected 1 errors
+Line 141: Expected 1 errors
 Line 30: Unexpected errors ['generics_defaults.py:30: error: Expression is of type "type[NoNonDefaults[DefaultStrT, DefaultIntT]]", not "type[NoNonDefaults[str, int]]"  [assert-type]']
 Line 31: Unexpected errors ['generics_defaults.py:31: error: Expression is of type "type[NoNonDefaults[str, DefaultIntT]]", not "type[NoNonDefaults[str, int]]"  [assert-type]']
 Line 38: Unexpected errors ['generics_defaults.py:38: error: Expression is of type "type[OneDefault[float, DefaultBoolT]]", not "type[OneDefault[float, bool]]"  [assert-type]']
@@ -35,8 +35,8 @@ Line 55: Unexpected errors ['generics_defaults.py:55: error: Expression is of ty
 Line 59: Unexpected errors ['generics_defaults.py:59: error: Expression is of type "type[AllTheDefaults[int, complex, str, int, DefaultBoolT]]", not "type[AllTheDefaults[int, complex, str, int, bool]]"  [assert-type]']
 Line 79: Unexpected errors ['generics_defaults.py:79: error: Expression is of type "type[Class_ParamSpec[DefaultP]]", not "type[Class_ParamSpec[[str, int]]]"  [assert-type]']
 Line 94: Unexpected errors ['generics_defaults.py:94: error: Expression is of type "type[Class_TypeVarTuple[*DefaultTs]]", not "type[Class_TypeVarTuple[str, int]]"  [assert-type]']
-Line 151: Unexpected errors ['generics_defaults.py:151: error: Expression is of type "type[Foo6[*tuple[Any, ...], Any]]", not "type[Foo6[int, str, [float, bool]]]"  [assert-type]', 'generics_defaults.py:151: error: Can only replace ParamSpec with a parameter types list or another ParamSpec, got "str"  [misc]']
-Line 152: Unexpected errors ['generics_defaults.py:152: error: Expression is of type "type[Foo6[*tuple[Any, ...], Any]]", not "type[Foo6[int, str, [bytes]]]"  [assert-type]', 'generics_defaults.py:152: error: Can only replace ParamSpec with a parameter types list or another ParamSpec, got "str"  [misc]']
-Line 166: Unexpected errors ['generics_defaults.py:166: error: Expression is of type "Callable[[Self], Self]", not "Callable[[Foo7[int]], Foo7[int]]"  [assert-type]']
-Line 167: Unexpected errors ['generics_defaults.py:167: error: Expression is of type "Any", not "int"  [assert-type]', 'generics_defaults.py:167: error: Access to generic instance variables via class is ambiguous  [misc]']
+Line 154: Unexpected errors ['generics_defaults.py:154: error: Expression is of type "type[Foo6[*tuple[Any, ...], Any]]", not "type[Foo6[int, str, [float, bool]]]"  [assert-type]', 'generics_defaults.py:154: error: Can only replace ParamSpec with a parameter types list or another ParamSpec, got "str"  [misc]']
+Line 155: Unexpected errors ['generics_defaults.py:155: error: Expression is of type "type[Foo6[*tuple[Any, ...], Any]]", not "type[Foo6[int, str, [bytes]]]"  [assert-type]', 'generics_defaults.py:155: error: Can only replace ParamSpec with a parameter types list or another ParamSpec, got "str"  [misc]']
+Line 169: Unexpected errors ['generics_defaults.py:169: error: Expression is of type "Callable[[Self], Self]", not "Callable[[Foo7[int]], Foo7[int]]"  [assert-type]']
+Line 170: Unexpected errors ['generics_defaults.py:170: error: Expression is of type "Any", not "int"  [assert-type]', 'generics_defaults.py:170: error: Access to generic instance variables via class is ambiguous  [misc]']
 """
diff --git a/conformance/results/mypy/version.toml b/conformance/results/mypy/version.toml
index 6bd36c63..60427baa 100644
--- a/conformance/results/mypy/version.toml
+++ b/conformance/results/mypy/version.toml
@@ -1,2 +1,2 @@
 version = "mypy 1.15.0"
-test_duration = 2.1
+test_duration = 3.8
diff --git a/conformance/results/pyre/generics_defaults.toml b/conformance/results/pyre/generics_defaults.toml
index 2db9965f..b3985318 100644
--- a/conformance/results/pyre/generics_defaults.toml
+++ b/conformance/results/pyre/generics_defaults.toml
@@ -50,26 +50,27 @@ generics_defaults.py:95:34 Invalid type parameters [24]: Non-generic type `Class
 generics_defaults.py:96:0 Assert type [70]: Expected `Class_TypeVarTuple[]` but got `typing.Any`.
 generics_defaults.py:96:12 Undefined attribute [16]: `Class_TypeVarTuple` has no attribute `__getitem__`.
 generics_defaults.py:96:45 Invalid type parameters [24]: Non-generic type `Class_TypeVarTuple` cannot take parameters.
-generics_defaults.py:124:13 Undefined or invalid type [11]: Annotation `T4` is not defined as a type.
-generics_defaults.py:127:0 Assert type [70]: Expected `int` but got `unknown`.
-generics_defaults.py:138:11 Invalid type variable [34]: The current class isn't generic with respect to the type variable `Ts`.
-generics_defaults.py:138:11 Undefined or invalid type [11]: Annotation `T5` is not defined as a type.
-generics_defaults.py:148:11 Invalid type variable [34]: The current class isn't generic with respect to the type variable `Ts`.
-generics_defaults.py:148:11 Undefined or invalid type [11]: Annotation `P` is not defined as a type.
-generics_defaults.py:151:0 Assert type [70]: Expected `Type[Foo6[]]` but got `typing.Any`.
-generics_defaults.py:151:12 Undefined attribute [16]: `Foo6` has no attribute `__getitem__`.
-generics_defaults.py:151:28 Invalid type parameters [24]: Non-generic type `Foo6` cannot take parameters.
-generics_defaults.py:152:0 Assert type [70]: Expected `Type[Foo6[]]` but got `typing.Any`.
-generics_defaults.py:152:37 Invalid type parameters [24]: Non-generic type `Foo6` cannot take parameters.
-generics_defaults.py:166:0 Assert type [70]: Expected `typing.Callable[[Foo7[]], Foo7[]]` but got `typing.Callable(Foo7.meth)[[Variable[_Self_generics_defaults_Foo7__ (bound to Foo7)]], Variable[_Self_generics_defaults_Foo7__ (bound to Foo7)]]`.
-generics_defaults.py:166:23 Invalid type parameters [24]: Non-generic type `Foo7` cannot take parameters.
-generics_defaults.py:167:0 Assert type [70]: Expected `int` but got `unknown`.
+generics_defaults.py:99:67 Incompatible parameter type [6]: In call `typing.GenericMeta.__getitem__`, for 1st positional argument, expected `Type[Variable[_T]]` but got `TypeVarTuple`.
+generics_defaults.py:127:13 Undefined or invalid type [11]: Annotation `T4` is not defined as a type.
+generics_defaults.py:130:0 Assert type [70]: Expected `int` but got `unknown`.
+generics_defaults.py:141:11 Invalid type variable [34]: The current class isn't generic with respect to the type variable `Ts`.
+generics_defaults.py:141:11 Undefined or invalid type [11]: Annotation `T5` is not defined as a type.
+generics_defaults.py:151:11 Invalid type variable [34]: The current class isn't generic with respect to the type variable `Ts`.
+generics_defaults.py:151:11 Undefined or invalid type [11]: Annotation `P` is not defined as a type.
+generics_defaults.py:154:0 Assert type [70]: Expected `Type[Foo6[]]` but got `typing.Any`.
+generics_defaults.py:154:12 Undefined attribute [16]: `Foo6` has no attribute `__getitem__`.
+generics_defaults.py:154:28 Invalid type parameters [24]: Non-generic type `Foo6` cannot take parameters.
+generics_defaults.py:155:0 Assert type [70]: Expected `Type[Foo6[]]` but got `typing.Any`.
+generics_defaults.py:155:37 Invalid type parameters [24]: Non-generic type `Foo6` cannot take parameters.
+generics_defaults.py:169:0 Assert type [70]: Expected `typing.Callable[[Foo7[]], Foo7[]]` but got `typing.Callable(Foo7.meth)[[Variable[_Self_generics_defaults_Foo7__ (bound to Foo7)]], Variable[_Self_generics_defaults_Foo7__ (bound to Foo7)]]`.
+generics_defaults.py:169:23 Invalid type parameters [24]: Non-generic type `Foo7` cannot take parameters.
+generics_defaults.py:170:0 Assert type [70]: Expected `int` but got `unknown`.
 """
 conformance_automated = "Fail"
 errors_diff = """
 Line 50: Expected 1 errors
-Line 104: Expected 1 errors
-Line 111: Expected 1 errors
+Line 107: Expected 1 errors
+Line 114: Expected 1 errors
 Line 27: Unexpected errors ['generics_defaults.py:27:20 Undefined or invalid type [11]: Annotation `DefaultIntT` is not defined as a type.']
 Line 30: Unexpected errors ['generics_defaults.py:30:0 Assert type [70]: Expected `Type[NoNonDefaults[]]` but got `Type[NoNonDefaults]`.', 'generics_defaults.py:30:27 Invalid type parameters [24]: Non-generic type `NoNonDefaults` cannot take parameters.']
 Line 31: Unexpected errors ['generics_defaults.py:31:0 Assert type [70]: Expected `Type[NoNonDefaults[]]` but got `typing.Any`.', 'generics_defaults.py:31:12 Undefined attribute [16]: `NoNonDefaults` has no attribute `__getitem__`.', 'generics_defaults.py:31:32 Invalid type parameters [24]: Non-generic type `NoNonDefaults` cannot take parameters.']
@@ -97,11 +98,12 @@ Line 91: Unexpected errors ['generics_defaults.py:91:25 Undefined or invalid typ
 Line 94: Unexpected errors ['generics_defaults.py:94:0 Assert type [70]: Expected `Type[Class_TypeVarTuple[]]` but got `Type[Class_TypeVarTuple]`.', 'generics_defaults.py:94:32 Invalid type parameters [24]: Non-generic type `Class_TypeVarTuple` cannot take parameters.']
 Line 95: Unexpected errors ['generics_defaults.py:95:0 Assert type [70]: Expected `Class_TypeVarTuple[]` but got `Class_TypeVarTuple`.', 'generics_defaults.py:95:34 Invalid type parameters [24]: Non-generic type `Class_TypeVarTuple` cannot take parameters.']
 Line 96: Unexpected errors ['generics_defaults.py:96:0 Assert type [70]: Expected `Class_TypeVarTuple[]` but got `typing.Any`.', 'generics_defaults.py:96:12 Undefined attribute [16]: `Class_TypeVarTuple` has no attribute `__getitem__`.', 'generics_defaults.py:96:45 Invalid type parameters [24]: Non-generic type `Class_TypeVarTuple` cannot take parameters.']
-Line 124: Unexpected errors ['generics_defaults.py:124:13 Undefined or invalid type [11]: Annotation `T4` is not defined as a type.']
-Line 127: Unexpected errors ['generics_defaults.py:127:0 Assert type [70]: Expected `int` but got `unknown`.']
-Line 148: Unexpected errors ["generics_defaults.py:148:11 Invalid type variable [34]: The current class isn't generic with respect to the type variable `Ts`.", 'generics_defaults.py:148:11 Undefined or invalid type [11]: Annotation `P` is not defined as a type.']
-Line 151: Unexpected errors ['generics_defaults.py:151:0 Assert type [70]: Expected `Type[Foo6[]]` but got `typing.Any`.', 'generics_defaults.py:151:12 Undefined attribute [16]: `Foo6` has no attribute `__getitem__`.', 'generics_defaults.py:151:28 Invalid type parameters [24]: Non-generic type `Foo6` cannot take parameters.']
-Line 152: Unexpected errors ['generics_defaults.py:152:0 Assert type [70]: Expected `Type[Foo6[]]` but got `typing.Any`.', 'generics_defaults.py:152:37 Invalid type parameters [24]: Non-generic type `Foo6` cannot take parameters.']
-Line 166: Unexpected errors ['generics_defaults.py:166:0 Assert type [70]: Expected `typing.Callable[[Foo7[]], Foo7[]]` but got `typing.Callable(Foo7.meth)[[Variable[_Self_generics_defaults_Foo7__ (bound to Foo7)]], Variable[_Self_generics_defaults_Foo7__ (bound to Foo7)]]`.', 'generics_defaults.py:166:23 Invalid type parameters [24]: Non-generic type `Foo7` cannot take parameters.']
-Line 167: Unexpected errors ['generics_defaults.py:167:0 Assert type [70]: Expected `int` but got `unknown`.']
+Line 99: Unexpected errors ['generics_defaults.py:99:67 Incompatible parameter type [6]: In call `typing.GenericMeta.__getitem__`, for 1st positional argument, expected `Type[Variable[_T]]` but got `TypeVarTuple`.']
+Line 127: Unexpected errors ['generics_defaults.py:127:13 Undefined or invalid type [11]: Annotation `T4` is not defined as a type.']
+Line 130: Unexpected errors ['generics_defaults.py:130:0 Assert type [70]: Expected `int` but got `unknown`.']
+Line 151: Unexpected errors ["generics_defaults.py:151:11 Invalid type variable [34]: The current class isn't generic with respect to the type variable `Ts`.", 'generics_defaults.py:151:11 Undefined or invalid type [11]: Annotation `P` is not defined as a type.']
+Line 154: Unexpected errors ['generics_defaults.py:154:0 Assert type [70]: Expected `Type[Foo6[]]` but got `typing.Any`.', 'generics_defaults.py:154:12 Undefined attribute [16]: `Foo6` has no attribute `__getitem__`.', 'generics_defaults.py:154:28 Invalid type parameters [24]: Non-generic type `Foo6` cannot take parameters.']
+Line 155: Unexpected errors ['generics_defaults.py:155:0 Assert type [70]: Expected `Type[Foo6[]]` but got `typing.Any`.', 'generics_defaults.py:155:37 Invalid type parameters [24]: Non-generic type `Foo6` cannot take parameters.']
+Line 169: Unexpected errors ['generics_defaults.py:169:0 Assert type [70]: Expected `typing.Callable[[Foo7[]], Foo7[]]` but got `typing.Callable(Foo7.meth)[[Variable[_Self_generics_defaults_Foo7__ (bound to Foo7)]], Variable[_Self_generics_defaults_Foo7__ (bound to Foo7)]]`.', 'generics_defaults.py:169:23 Invalid type parameters [24]: Non-generic type `Foo7` cannot take parameters.']
+Line 170: Unexpected errors ['generics_defaults.py:170:0 Assert type [70]: Expected `int` but got `unknown`.']
 """
diff --git a/conformance/results/pyre/version.toml b/conformance/results/pyre/version.toml
index c60d2044..9b69320d 100644
--- a/conformance/results/pyre/version.toml
+++ b/conformance/results/pyre/version.toml
@@ -1,2 +1,2 @@
 version = "pyre 0.9.23"
-test_duration = 3.9
+test_duration = 7.5
diff --git a/conformance/results/pyright/generics_defaults.toml b/conformance/results/pyright/generics_defaults.toml
index fc55cd20..16b3cc3c 100644
--- a/conformance/results/pyright/generics_defaults.toml
+++ b/conformance/results/pyright/generics_defaults.toml
@@ -2,10 +2,10 @@ conformant = "Pass"
 output = """
 generics_defaults.py:24:7 - error: "T" cannot appear after "DefaultStrT" in type parameter list because it has no default type (reportGeneralTypeIssues)
 generics_defaults.py:50:16 - error: Too few type arguments provided for "AllTheDefaults"; expected 2 but received 1 (reportInvalidTypeArguments)
-generics_defaults.py:104:51 - error: TypeVar default type must be a subtype of the bound type (reportGeneralTypeIssues)
-generics_defaults.py:111:52 - error: TypeVar default type must be one of the constrained types (reportGeneralTypeIssues)
-generics_defaults.py:138:7 - error: TypeVar "T5" has a default value and cannot follow TypeVarTuple "Ts" (reportGeneralTypeIssues)
-generics_defaults.py:167:18 - error: Access to generic instance variable through class is ambiguous (reportGeneralTypeIssues)
+generics_defaults.py:107:51 - error: TypeVar default type must be a subtype of the bound type (reportGeneralTypeIssues)
+generics_defaults.py:114:52 - error: TypeVar default type must be one of the constrained types (reportGeneralTypeIssues)
+generics_defaults.py:141:7 - error: TypeVar "T5" has a default value and cannot follow TypeVarTuple "Ts" (reportGeneralTypeIssues)
+generics_defaults.py:170:18 - error: Access to generic instance variable through class is ambiguous (reportGeneralTypeIssues)
 """
 conformance_automated = "Pass"
 errors_diff = """
diff --git a/conformance/results/pyright/version.toml b/conformance/results/pyright/version.toml
index 8fb908ad..f9702975 100644
--- a/conformance/results/pyright/version.toml
+++ b/conformance/results/pyright/version.toml
@@ -1,2 +1,2 @@
-version = "pyright 1.1.398"
-test_duration = 2.3
+version = "pyright 1.1.399"
+test_duration = 3.9
diff --git a/conformance/results/pytype/generics_defaults.toml b/conformance/results/pytype/generics_defaults.toml
index 3f832185..68c0f844 100644
--- a/conformance/results/pytype/generics_defaults.toml
+++ b/conformance/results/pytype/generics_defaults.toml
@@ -185,97 +185,102 @@ generics_defaults.py:96:46: \u001b[1m\u001b[31merror\u001b[39m\u001b[0m: in <mod
 assert_type(Class_TypeVarTuple[int, bool](), Class_TypeVarTuple[int, bool])
                                              \u001b[1m\u001b[31m~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\u001b[39m\u001b[0m
 
-generics_defaults.py:103:7: \u001b[1m\u001b[31merror\u001b[39m\u001b[0m: in <module>: wrong arguments [invalid-typevar]
+generics_defaults.py:99:61: \u001b[1m\u001b[31merror\u001b[39m\u001b[0m: in <module>: Invalid type annotation '<instance of TypeVarTuple>'  [invalid-annotation]
+
+AnotherDefaultTs = TypeVarTuple("AnotherDefaultTs", default=Unpack[DefaultTs])
+                                                            \u001b[1m\u001b[31m~~~~~~~~~~~~~~~~~\u001b[39m\u001b[0m
+
+generics_defaults.py:106:7: \u001b[1m\u001b[31merror\u001b[39m\u001b[0m: in <module>: wrong arguments [invalid-typevar]
 
 Ok1 = TypeVar("Ok1", bound=float, default=int)  # OK
       \u001b[1m\u001b[31m~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\u001b[39m\u001b[0m
 
-generics_defaults.py:104:12: \u001b[1m\u001b[31merror\u001b[39m\u001b[0m: in <module>: wrong arguments [invalid-typevar]
+generics_defaults.py:107:12: \u001b[1m\u001b[31merror\u001b[39m\u001b[0m: in <module>: wrong arguments [invalid-typevar]
 
 Invalid1 = TypeVar("Invalid1", bound=str, default=int)  # E: the bound and default are incompatible
            \u001b[1m\u001b[31m~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\u001b[39m\u001b[0m
 
-generics_defaults.py:110:7: \u001b[1m\u001b[31merror\u001b[39m\u001b[0m: in <module>: wrong arguments [invalid-typevar]
+generics_defaults.py:113:7: \u001b[1m\u001b[31merror\u001b[39m\u001b[0m: in <module>: wrong arguments [invalid-typevar]
 
 Ok2 = TypeVar("Ok2", float, str, default=float)  # OK
       \u001b[1m\u001b[31m~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\u001b[39m\u001b[0m
 
-generics_defaults.py:111:12: \u001b[1m\u001b[31merror\u001b[39m\u001b[0m: in <module>: wrong arguments [invalid-typevar]
+generics_defaults.py:114:12: \u001b[1m\u001b[31merror\u001b[39m\u001b[0m: in <module>: wrong arguments [invalid-typevar]
 
 Invalid2 = TypeVar("Invalid2", float, str, default=int)  # E: expected one of float or str got int
            \u001b[1m\u001b[31m~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\u001b[39m\u001b[0m
 
-generics_defaults.py:121:6: \u001b[1m\u001b[31merror\u001b[39m\u001b[0m: in <module>: wrong arguments [invalid-typevar]
+generics_defaults.py:124:6: \u001b[1m\u001b[31merror\u001b[39m\u001b[0m: in <module>: wrong arguments [invalid-typevar]
 
 T4 = TypeVar("T4", default=int)
      \u001b[1m\u001b[31m~~~~~~~~~~~~~~~~~~~~~~~~~~\u001b[39m\u001b[0m
 
-generics_defaults.py:127:1: \u001b[1m\u001b[31merror\u001b[39m\u001b[0m: in <module>: Any [assert-type]
+generics_defaults.py:130:1: \u001b[1m\u001b[31merror\u001b[39m\u001b[0m: in <module>: Any [assert-type]
 
 assert_type(func1(0), int)
 \u001b[1m\u001b[31m~~~~~~~~~~~~~~~~~~~~~~~~~~\u001b[39m\u001b[0m
 
-generics_defaults.py:135:6: \u001b[1m\u001b[31merror\u001b[39m\u001b[0m: in <module>: wrong arguments [invalid-typevar]
+generics_defaults.py:138:6: \u001b[1m\u001b[31merror\u001b[39m\u001b[0m: in <module>: wrong arguments [invalid-typevar]
 
 T5 = TypeVar("T5", default=bool)
      \u001b[1m\u001b[31m~~~~~~~~~~~~~~~~~~~~~~~~~~~\u001b[39m\u001b[0m
 
-generics_defaults.py:138:12: \u001b[1m\u001b[31merror\u001b[39m\u001b[0m: in <module>: Invalid type annotation 'Generic'  [invalid-annotation]
+generics_defaults.py:141:12: \u001b[1m\u001b[31merror\u001b[39m\u001b[0m: in <module>: Invalid type annotation 'Generic'  [invalid-annotation]
 
 class Foo5(Generic[*Ts, T5]): ...  # E
            \u001b[1m\u001b[31m~~~~~~~~~~~~~~~~\u001b[39m\u001b[0m
 
-generics_defaults.py:145:5: \u001b[1m\u001b[31merror\u001b[39m\u001b[0m: in <module>: wrong arguments [invalid-typevar]
+generics_defaults.py:148:5: \u001b[1m\u001b[31merror\u001b[39m\u001b[0m: in <module>: wrong arguments [invalid-typevar]
 
 P = ParamSpec("P", default=[float, bool])
     \u001b[1m\u001b[31m~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\u001b[39m\u001b[0m
 
-generics_defaults.py:148:12: \u001b[1m\u001b[31merror\u001b[39m\u001b[0m: in <module>: Invalid type annotation 'Generic'  [invalid-annotation]
+generics_defaults.py:151:12: \u001b[1m\u001b[31merror\u001b[39m\u001b[0m: in <module>: Invalid type annotation 'Generic'  [invalid-annotation]
 
 class Foo6(Generic[*Ts, P]): ...  # OK
            \u001b[1m\u001b[31m~~~~~~~~~~~~~~~\u001b[39m\u001b[0m
 
-generics_defaults.py:151:13: \u001b[1m\u001b[31merror\u001b[39m\u001b[0m: in <module>: class Foo6 is not indexable [not-indexable]
+generics_defaults.py:154:13: \u001b[1m\u001b[31merror\u001b[39m\u001b[0m: in <module>: class Foo6 is not indexable [not-indexable]
 
 assert_type(Foo6[int, str], type[Foo6[int, str, [float, bool]]])
             \u001b[1m\u001b[31m~~~~~~~~~~~~~~\u001b[39m\u001b[0m
 
-generics_defaults.py:151:34: \u001b[1m\u001b[31merror\u001b[39m\u001b[0m: in <module>: class Foo6 is not indexable [not-indexable]
+generics_defaults.py:154:34: \u001b[1m\u001b[31merror\u001b[39m\u001b[0m: in <module>: class Foo6 is not indexable [not-indexable]
 
 assert_type(Foo6[int, str], type[Foo6[int, str, [float, bool]]])
                                  \u001b[1m\u001b[31m~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\u001b[39m\u001b[0m
 
-generics_defaults.py:152:13: \u001b[1m\u001b[31merror\u001b[39m\u001b[0m: in <module>: class Foo6 is not indexable [not-indexable]
+generics_defaults.py:155:13: \u001b[1m\u001b[31merror\u001b[39m\u001b[0m: in <module>: class Foo6 is not indexable [not-indexable]
 
 assert_type(Foo6[int, str, [bytes]], type[Foo6[int, str, [bytes]]])
             \u001b[1m\u001b[31m~~~~~~~~~~~~~~~~~~~~~~~\u001b[39m\u001b[0m
 
-generics_defaults.py:152:43: \u001b[1m\u001b[31merror\u001b[39m\u001b[0m: in <module>: class Foo6 is not indexable [not-indexable]
+generics_defaults.py:155:43: \u001b[1m\u001b[31merror\u001b[39m\u001b[0m: in <module>: class Foo6 is not indexable [not-indexable]
 
 assert_type(Foo6[int, str, [bytes]], type[Foo6[int, str, [bytes]]])
                                           \u001b[1m\u001b[31m~~~~~~~~~~~~~~~~~~~~~~~\u001b[39m\u001b[0m
 
-generics_defaults.py:159:12: \u001b[1m\u001b[31merror\u001b[39m\u001b[0m: in <module>: Invalid type annotation 'Generic'  [invalid-annotation]
+generics_defaults.py:162:12: \u001b[1m\u001b[31merror\u001b[39m\u001b[0m: in <module>: Invalid type annotation 'Generic'  [invalid-annotation]
 
 class Foo7(Generic[DefaultIntT]):
            \u001b[1m\u001b[31m~~~~~~~~~~~~~~~~~~~~\u001b[39m\u001b[0m
 
-generics_defaults.py:166:34: \u001b[1m\u001b[31merror\u001b[39m\u001b[0m: in <module>: class Foo7 is not indexable [not-indexable]
+generics_defaults.py:169:34: \u001b[1m\u001b[31merror\u001b[39m\u001b[0m: in <module>: class Foo7 is not indexable [not-indexable]
 
 assert_type(Foo7.meth, Callable[[Foo7[int]], Foo7[int]])
                                  \u001b[1m\u001b[31m~~~~~~~~~\u001b[39m\u001b[0m
 
-generics_defaults.py:166:46: \u001b[1m\u001b[31merror\u001b[39m\u001b[0m: in <module>: class Foo7 is not indexable [not-indexable]
+generics_defaults.py:169:46: \u001b[1m\u001b[31merror\u001b[39m\u001b[0m: in <module>: class Foo7 is not indexable [not-indexable]
 
 assert_type(Foo7.meth, Callable[[Foo7[int]], Foo7[int]])
                                              \u001b[1m\u001b[31m~~~~~~~~~\u001b[39m\u001b[0m
 
-generics_defaults.py:166:1: \u001b[1m\u001b[31merror\u001b[39m\u001b[0m: in <module>: Callable[[Any], Self] [assert-type]
+generics_defaults.py:169:1: \u001b[1m\u001b[31merror\u001b[39m\u001b[0m: in <module>: Callable[[Any], Self] [assert-type]
 
 assert_type(Foo7.meth, Callable[[Foo7[int]], Foo7[int]])
 \u001b[1m\u001b[31m~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\u001b[39m\u001b[0m
 
-generics_defaults.py:167:1: \u001b[1m\u001b[31merror\u001b[39m\u001b[0m: in <module>: Any [assert-type]
+generics_defaults.py:170:1: \u001b[1m\u001b[31merror\u001b[39m\u001b[0m: in <module>: Any [assert-type]
 
 assert_type(Foo7.attr, int)
 \u001b[1m\u001b[31m~~~~~~~~~~~~~~~~~~~~~~~~~~~\u001b[39m\u001b[0m
@@ -314,16 +319,17 @@ Line 91: Unexpected errors ["generics_defaults.py:91:26: \\x1b[1m\\x1b[31merror\
 Line 94: Unexpected errors ['generics_defaults.py:94:38: \\x1b[1m\\x1b[31merror\\x1b[39m\\x1b[0m: in <module>: class Class_TypeVarTuple is not indexable [not-indexable]']
 Line 95: Unexpected errors ['generics_defaults.py:95:35: \\x1b[1m\\x1b[31merror\\x1b[39m\\x1b[0m: in <module>: class Class_TypeVarTuple is not indexable [not-indexable]']
 Line 96: Unexpected errors ['generics_defaults.py:96:13: \\x1b[1m\\x1b[31merror\\x1b[39m\\x1b[0m: in <module>: class Class_TypeVarTuple is not indexable [not-indexable]', 'generics_defaults.py:96:46: \\x1b[1m\\x1b[31merror\\x1b[39m\\x1b[0m: in <module>: class Class_TypeVarTuple is not indexable [not-indexable]']
-Line 103: Unexpected errors ['generics_defaults.py:103:7: \\x1b[1m\\x1b[31merror\\x1b[39m\\x1b[0m: in <module>: wrong arguments [invalid-typevar]']
-Line 110: Unexpected errors ['generics_defaults.py:110:7: \\x1b[1m\\x1b[31merror\\x1b[39m\\x1b[0m: in <module>: wrong arguments [invalid-typevar]']
-Line 121: Unexpected errors ['generics_defaults.py:121:6: \\x1b[1m\\x1b[31merror\\x1b[39m\\x1b[0m: in <module>: wrong arguments [invalid-typevar]']
-Line 127: Unexpected errors ['generics_defaults.py:127:1: \\x1b[1m\\x1b[31merror\\x1b[39m\\x1b[0m: in <module>: Any [assert-type]']
-Line 135: Unexpected errors ['generics_defaults.py:135:6: \\x1b[1m\\x1b[31merror\\x1b[39m\\x1b[0m: in <module>: wrong arguments [invalid-typevar]']
-Line 145: Unexpected errors ['generics_defaults.py:145:5: \\x1b[1m\\x1b[31merror\\x1b[39m\\x1b[0m: in <module>: wrong arguments [invalid-typevar]']
-Line 148: Unexpected errors ["generics_defaults.py:148:12: \\x1b[1m\\x1b[31merror\\x1b[39m\\x1b[0m: in <module>: Invalid type annotation 'Generic'  [invalid-annotation]"]
-Line 151: Unexpected errors ['generics_defaults.py:151:13: \\x1b[1m\\x1b[31merror\\x1b[39m\\x1b[0m: in <module>: class Foo6 is not indexable [not-indexable]', 'generics_defaults.py:151:34: \\x1b[1m\\x1b[31merror\\x1b[39m\\x1b[0m: in <module>: class Foo6 is not indexable [not-indexable]']
-Line 152: Unexpected errors ['generics_defaults.py:152:13: \\x1b[1m\\x1b[31merror\\x1b[39m\\x1b[0m: in <module>: class Foo6 is not indexable [not-indexable]', 'generics_defaults.py:152:43: \\x1b[1m\\x1b[31merror\\x1b[39m\\x1b[0m: in <module>: class Foo6 is not indexable [not-indexable]']
-Line 159: Unexpected errors ["generics_defaults.py:159:12: \\x1b[1m\\x1b[31merror\\x1b[39m\\x1b[0m: in <module>: Invalid type annotation 'Generic'  [invalid-annotation]"]
-Line 166: Unexpected errors ['generics_defaults.py:166:34: \\x1b[1m\\x1b[31merror\\x1b[39m\\x1b[0m: in <module>: class Foo7 is not indexable [not-indexable]', 'generics_defaults.py:166:46: \\x1b[1m\\x1b[31merror\\x1b[39m\\x1b[0m: in <module>: class Foo7 is not indexable [not-indexable]', 'generics_defaults.py:166:1: \\x1b[1m\\x1b[31merror\\x1b[39m\\x1b[0m: in <module>: Callable[[Any], Self] [assert-type]']
-Line 167: Unexpected errors ['generics_defaults.py:167:1: \\x1b[1m\\x1b[31merror\\x1b[39m\\x1b[0m: in <module>: Any [assert-type]']
+Line 99: Unexpected errors ["generics_defaults.py:99:61: \\x1b[1m\\x1b[31merror\\x1b[39m\\x1b[0m: in <module>: Invalid type annotation '<instance of TypeVarTuple>'  [invalid-annotation]"]
+Line 106: Unexpected errors ['generics_defaults.py:106:7: \\x1b[1m\\x1b[31merror\\x1b[39m\\x1b[0m: in <module>: wrong arguments [invalid-typevar]']
+Line 113: Unexpected errors ['generics_defaults.py:113:7: \\x1b[1m\\x1b[31merror\\x1b[39m\\x1b[0m: in <module>: wrong arguments [invalid-typevar]']
+Line 124: Unexpected errors ['generics_defaults.py:124:6: \\x1b[1m\\x1b[31merror\\x1b[39m\\x1b[0m: in <module>: wrong arguments [invalid-typevar]']
+Line 130: Unexpected errors ['generics_defaults.py:130:1: \\x1b[1m\\x1b[31merror\\x1b[39m\\x1b[0m: in <module>: Any [assert-type]']
+Line 138: Unexpected errors ['generics_defaults.py:138:6: \\x1b[1m\\x1b[31merror\\x1b[39m\\x1b[0m: in <module>: wrong arguments [invalid-typevar]']
+Line 148: Unexpected errors ['generics_defaults.py:148:5: \\x1b[1m\\x1b[31merror\\x1b[39m\\x1b[0m: in <module>: wrong arguments [invalid-typevar]']
+Line 151: Unexpected errors ["generics_defaults.py:151:12: \\x1b[1m\\x1b[31merror\\x1b[39m\\x1b[0m: in <module>: Invalid type annotation 'Generic'  [invalid-annotation]"]
+Line 154: Unexpected errors ['generics_defaults.py:154:13: \\x1b[1m\\x1b[31merror\\x1b[39m\\x1b[0m: in <module>: class Foo6 is not indexable [not-indexable]', 'generics_defaults.py:154:34: \\x1b[1m\\x1b[31merror\\x1b[39m\\x1b[0m: in <module>: class Foo6 is not indexable [not-indexable]']
+Line 155: Unexpected errors ['generics_defaults.py:155:13: \\x1b[1m\\x1b[31merror\\x1b[39m\\x1b[0m: in <module>: class Foo6 is not indexable [not-indexable]', 'generics_defaults.py:155:43: \\x1b[1m\\x1b[31merror\\x1b[39m\\x1b[0m: in <module>: class Foo6 is not indexable [not-indexable]']
+Line 162: Unexpected errors ["generics_defaults.py:162:12: \\x1b[1m\\x1b[31merror\\x1b[39m\\x1b[0m: in <module>: Invalid type annotation 'Generic'  [invalid-annotation]"]
+Line 169: Unexpected errors ['generics_defaults.py:169:34: \\x1b[1m\\x1b[31merror\\x1b[39m\\x1b[0m: in <module>: class Foo7 is not indexable [not-indexable]', 'generics_defaults.py:169:46: \\x1b[1m\\x1b[31merror\\x1b[39m\\x1b[0m: in <module>: class Foo7 is not indexable [not-indexable]', 'generics_defaults.py:169:1: \\x1b[1m\\x1b[31merror\\x1b[39m\\x1b[0m: in <module>: Callable[[Any], Self] [assert-type]']
+Line 170: Unexpected errors ['generics_defaults.py:170:1: \\x1b[1m\\x1b[31merror\\x1b[39m\\x1b[0m: in <module>: Any [assert-type]']
 """
diff --git a/conformance/results/pytype/protocols_merging.toml b/conformance/results/pytype/protocols_merging.toml
index a3102a96..28275fdd 100644
--- a/conformance/results/pytype/protocols_merging.toml
+++ b/conformance/results/pytype/protocols_merging.toml
@@ -6,12 +6,12 @@ Does not report attempt to instantiate abstract class downgraded from protocol c
 output = """
 protocols_merging.py:52:1: \u001b[1m\u001b[31merror\u001b[39m\u001b[0m: in <module>: Type annotation for s6 does not match type of assignment [annotation-type-mismatch]
 
-s6: SizedAndClosable1 = SCConcrete2()  # E: doesn't implement close
+s6: SizedAndClosable1 = SCConcrete2()  # E: doesn't implement `__len__`
 \u001b[1m\u001b[31m~~\u001b[39m\u001b[0m
 
 protocols_merging.py:53:1: \u001b[1m\u001b[31merror\u001b[39m\u001b[0m: in <module>: Type annotation for s7 does not match type of assignment [annotation-type-mismatch]
 
-s7: SizedAndClosable2 = SCConcrete2()  # E: doesn't implement close
+s7: SizedAndClosable2 = SCConcrete2()  # E: doesn't implement `__len__`
 \u001b[1m\u001b[31m~~\u001b[39m\u001b[0m
 
 protocols_merging.py:54:1: \u001b[1m\u001b[31merror\u001b[39m\u001b[0m: in <module>: Type annotation for s8 does not match type of assignment [annotation-type-mismatch]
diff --git a/conformance/results/pytype/specialtypes_never.toml b/conformance/results/pytype/specialtypes_never.toml
index 7a231858..be27a72a 100644
--- a/conformance/results/pytype/specialtypes_never.toml
+++ b/conformance/results/pytype/specialtypes_never.toml
@@ -8,11 +8,10 @@ specialtypes_never.py:11:8: \u001b[1m\u001b[31merror\u001b[39m\u001b[0m: in <mod
 T_co = TypeVar("T_co", covariant=True)
        \u001b[1m\u001b[31m~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\u001b[39m\u001b[0m
 
-specialtypes_never.py:21:8: \u001b[1m\u001b[31merror\u001b[39m\u001b[0m: in func1: bad return type [bad-return-type]
+specialtypes_never.py:21:5: \u001b[1m\u001b[31merror\u001b[39m\u001b[0m: in func1: bad return type [bad-return-type]
 
-        sys.exit(1)       \u001b[1m\u001b[31m~~~~~~~~~~~\u001b[39m\u001b[0m
         sys.exit(1)
-\u001b[1m\u001b[31m~~~~~~~~~~~~~\u001b[39m\u001b[0m
+    \u001b[1m\u001b[31m~~~~~~~~~~~~~~~\u001b[39m\u001b[0m
 
 specialtypes_never.py:68:5: \u001b[1m\u001b[31merror\u001b[39m\u001b[0m: in func6: Type annotation for v1 does not match type of assignment [annotation-type-mismatch]
 
@@ -40,7 +39,7 @@ errors_diff = """
 Line 19: Expected 1 errors
 Line 105: Expected 1 errors
 Line 11: Unexpected errors ['specialtypes_never.py:11:8: \\x1b[1m\\x1b[31merror\\x1b[39m\\x1b[0m: in <module>: argument "covariant" to TypeVar not supported yet [not-supported-yet]']
-Line 21: Unexpected errors ['specialtypes_never.py:21:8: \\x1b[1m\\x1b[31merror\\x1b[39m\\x1b[0m: in func1: bad return type [bad-return-type]']
+Line 21: Unexpected errors ['specialtypes_never.py:21:5: \\x1b[1m\\x1b[31merror\\x1b[39m\\x1b[0m: in func1: bad return type [bad-return-type]']
 Line 68: Unexpected errors ['specialtypes_never.py:68:5: \\x1b[1m\\x1b[31merror\\x1b[39m\\x1b[0m: in func6: Type annotation for v1 does not match type of assignment [annotation-type-mismatch]']
 Line 69: Unexpected errors ['specialtypes_never.py:69:5: \\x1b[1m\\x1b[31merror\\x1b[39m\\x1b[0m: in func6: Type annotation for v2 does not match type of assignment [annotation-type-mismatch]']
 Line 70: Unexpected errors ['specialtypes_never.py:70:5: \\x1b[1m\\x1b[31merror\\x1b[39m\\x1b[0m: in func6: Type annotation for v3 does not match type of assignment [annotation-type-mismatch]']
diff --git a/conformance/results/pytype/version.toml b/conformance/results/pytype/version.toml
index cdc0a953..3e20e20c 100644
--- a/conformance/results/pytype/version.toml
+++ b/conformance/results/pytype/version.toml
@@ -1,2 +1,2 @@
 version = "pytype 2024.10.11"
-test_duration = 43.3
+test_duration = 89.0
diff --git a/conformance/results/results.html b/conformance/results/results.html
index d78bd912..89449eaa 100644
--- a/conformance/results/results.html
+++ b/conformance/results/results.html
@@ -159,16 +159,16 @@ <h3>Python Type System Conformance Test Results</h3>
         <div class="table_container"><table><tbody>
 <tr><th class="col1">&nbsp;</th>
 <th class='tc-header'><div class='tc-name'>mypy 1.15.0</div>
-<div class='tc-time'>2.1sec</div>
+<div class='tc-time'>3.8sec</div>
 </th>
-<th class='tc-header'><div class='tc-name'>pyright 1.1.398</div>
-<div class='tc-time'>2.3sec</div>
+<th class='tc-header'><div class='tc-name'>pyright 1.1.399</div>
+<div class='tc-time'>3.9sec</div>
 </th>
 <th class='tc-header'><div class='tc-name'>pyre 0.9.23</div>
-<div class='tc-time'>3.9sec</div>
+<div class='tc-time'>7.5sec</div>
 </th>
 <th class='tc-header'><div class='tc-name'>pytype 2024.10.11</div>
-<div class='tc-time'>43.3sec</div>
+<div class='tc-time'>89.0sec</div>
 </th>
 </tr>
 <tr><th class="column" colspan="5">
@@ -445,10 +445,10 @@ <h3>Python Type System Conformance Test Results</h3>
 <a class="test_group" href="https://typing.readthedocs.io/en/latest/spec/class-compat.html">Class type compatibility</a>
 </th></tr>
 <tr><th class="column col1">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;classes_classvar</th>
-<th class="column col2 partially-conformant"><div class="hover-text">Partial<span class="tooltip-text" id="bottom"><p>Internal error if TypeVarTuple is used in ClassVar.</p><p>Does not reject use of ParamSpec in ClassVar.</p><p>Rejects ClassVar nested in Annotated.</p><p>Does not reject use of ClassVar in TypeAlias definition.</p><p>Does not infer type of ClassVar from assignment if no type is provided.</p></span></div></th>
+<th class="column col2 partially-conformant"><div class="hover-text">Partial<span class="tooltip-text" id="bottom"><p>Internal error if TypeVarTuple is used in ClassVar.</p><p>Does not reject use of ParamSpec in ClassVar.</p><p>Rejects ClassVar nested in Annotated.</p><p>Does not reject use of ClassVar in TypeAlias definition.</p></span></div></th>
 <th class="column col2 conformant">Pass</th>
 <th class="column col2 partially-conformant"><div class="hover-text">Partial<span class="tooltip-text" id="bottom"><p>Does not reject use of TypeVar in ClassVar.</p><p>Does not reject use of ParamSpec in ClassVar.</p><p>Does not reject use of ClassVar as a generic type argument.</p><p>Does not reject use of ClassVar in parameter type annotation.</p><p>Does not reject use of ClassVar in local variable annotation.</p><p>Does not reject use of ClassVar in instance variable annotation.</p><p>Does not reject use of ClassVar in return type annotation.</p><p>Does not reject use of ClassVar in type alias definition.</p><p>Does not infer type from initialization for bare ClassVar.</p></span></div></th>
-<th class="column col2 partially-conformant"><div class="hover-text">Partial<span class="tooltip-text" id="bottom"><p>Does not reject use of TypeVar in ClassVar.</p><p>Does not reject use of ParamSpec in ClassVar.</p><p>Does not reject use of ClassVar as a generic type argument.</p><p>Rejects initialization of ClassVar if no type argument is provided.</p><p>Does not reject use of ClassVar in parameter type annotation.</p><p>Does not reject use of ClassVar in local variable annotation.</p><p>Does not reject use of ClassVar in instance variable annotation.</p><p>Does not reject use of ClassVar in return type annotation.</p><p>Does not reject use of ClassVar in type alias definition.</p><p>Does not reject assignment of ClassVar through instance of class.</p></span></div></th>
+<th class="column col2 partially-conformant"><div class="hover-text">Partial<span class="tooltip-text" id="bottom"><p>Does not reject use of TypeVar in ClassVar.</p><p>Does not reject use of ParamSpec in ClassVar.</p><p>Does not reject use of ClassVar as a generic type argument.</p><p>Rejects initialization of ClassVar if no type argument is provided.</p><p>Does not infer ClassVar with no type argument and no assigned value as Any.</p><p>Does not reject use of ClassVar in parameter type annotation.</p><p>Does not reject use of ClassVar in local variable annotation.</p><p>Does not reject use of ClassVar in instance variable annotation.</p><p>Does not reject use of ClassVar in return type annotation.</p><p>Does not reject use of ClassVar in type alias definition.</p><p>Does not reject assignment of ClassVar through instance of class.</p></span></div></th>
 </tr>
 <tr><th class="column col1">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;classes_override</th>
 <th class="column col2 partially-conformant"><div class="hover-text">Partial<span class="tooltip-text" id="bottom"><p>Does not handle case where parent class derives from Any.</p></span></div></th>
diff --git a/conformance/tests/generics_defaults.py b/conformance/tests/generics_defaults.py
index af347b10..7ac1f8ed 100644
--- a/conformance/tests/generics_defaults.py
+++ b/conformance/tests/generics_defaults.py
@@ -82,8 +82,8 @@ class Class_ParamSpec(Generic[DefaultP]): ...
 
 
 # > ``TypeVarTuple`` defaults are defined using the same syntax as
-# > ``TypeVar`` \ s but use an unpacked tuple of types instead of a single type
-# > or another in-scope ``TypeVarTuple`` (see `Scoping Rules`_).
+# > ``TypeVar`` \ s, but instead of a single type, they use an unpacked tuple
+# > of types or an unpacked, in-scope ``TypeVarTuple`` (see `Scoping Rules`_).
 
 DefaultTs = TypeVarTuple("DefaultTs", default=Unpack[tuple[str, int]])
 
@@ -96,6 +96,9 @@ class Class_TypeVarTuple(Generic[*DefaultTs]): ...
 assert_type(Class_TypeVarTuple[int, bool](), Class_TypeVarTuple[int, bool])
 
 
+AnotherDefaultTs = TypeVarTuple("AnotherDefaultTs", default=Unpack[DefaultTs])
+
+
 # > If both ``bound`` and ``default`` are passed, ``default`` must be a
 # > subtype of ``bound``. If not, the type checker should generate an
 # > error.
diff --git a/docs/spec/generics.rst b/docs/spec/generics.rst
index 65eeea94..942abb66 100644
--- a/docs/spec/generics.rst
+++ b/docs/spec/generics.rst
@@ -1919,8 +1919,8 @@ literal "``...``" or another in-scope ``ParamSpec`` (see `Scoping Rules`_).
 ^^^^^^^^^^^^^^^^^^^^^^^^^
 
 ``TypeVarTuple`` defaults are defined using the same syntax as
-``TypeVar`` \ s but use an unpacked tuple of types instead of a single type
-or another in-scope ``TypeVarTuple`` (see `Scoping Rules`_).
+``TypeVar`` \ s, but instead of a single type, they use an unpacked tuple of
+types or an unpacked, in-scope ``TypeVarTuple`` (see `Scoping Rules`_).
 
 ::