diff --git a/conformance/results/mypy/dataclasses_inheritance.toml b/conformance/results/mypy/dataclasses_inheritance.toml
index 5f7dcc31..1345599e 100644
--- a/conformance/results/mypy/dataclasses_inheritance.toml
+++ b/conformance/results/mypy/dataclasses_inheritance.toml
@@ -1,8 +1,12 @@
-conformant = "Pass"
+conformant = "Partial"
+notes = """
+Does not report when the default value of dataclass field is mutable (is of type list, dict, or set).
+"""
 output = """
 dataclasses_inheritance.py:60: error: Cannot override instance variable (previously declared on base class "DC6") with class variable  [misc]
 dataclasses_inheritance.py:64: error: Cannot override class variable (previously declared on base class "DC6") with instance variable  [misc]
 """
-conformance_automated = "Pass"
+conformance_automated = "Fail"
 errors_diff = """
+Line 47: Expected 1 errors
 """
diff --git a/conformance/results/mypy/version.toml b/conformance/results/mypy/version.toml
index eb3ca14a..a62332be 100644
--- a/conformance/results/mypy/version.toml
+++ b/conformance/results/mypy/version.toml
@@ -1,2 +1,2 @@
 version = "mypy 1.16.0"
-test_duration = 1.7
+test_duration = 2.0
diff --git a/conformance/results/pyre/dataclasses_inheritance.toml b/conformance/results/pyre/dataclasses_inheritance.toml
index eb0547dd..4ace5b68 100644
--- a/conformance/results/pyre/dataclasses_inheritance.toml
+++ b/conformance/results/pyre/dataclasses_inheritance.toml
@@ -1,5 +1,6 @@
 conformant = "Partial"
 notes = """
+Does not report when the default value of dataclass field is mutable (is of type list, dict, or set).
 Does not reject ClassVar that is overridden by instance variable.
 Does not reject instance variable that is overridden by ClassVar.
 """
@@ -7,6 +8,7 @@ output = """
 """
 conformance_automated = "Fail"
 errors_diff = """
+Line 47: Expected 1 errors
 Line 60: Expected 1 errors
 Line 64: Expected 1 errors
 """
diff --git a/conformance/results/pyre/version.toml b/conformance/results/pyre/version.toml
index bffc6299..5b949f6a 100644
--- a/conformance/results/pyre/version.toml
+++ b/conformance/results/pyre/version.toml
@@ -1,2 +1,2 @@
 version = "pyre 0.9.23"
-test_duration = 5.7
+test_duration = 9.1
diff --git a/conformance/results/pyright/dataclasses_inheritance.toml b/conformance/results/pyright/dataclasses_inheritance.toml
index a77817ee..935f8e91 100644
--- a/conformance/results/pyright/dataclasses_inheritance.toml
+++ b/conformance/results/pyright/dataclasses_inheritance.toml
@@ -1,8 +1,12 @@
-conformant = "Pass"
+conformant = "Partial"
+notes = """
+Does not report when the default value of dataclass field is mutable (is of type list, dict, or set).
+"""
 output = """
 dataclasses_inheritance.py:60:5 - error: Class variable "x" overrides instance variable of same name in class "DC6" (reportIncompatibleVariableOverride)
 dataclasses_inheritance.py:64:5 - error: Instance variable "y" overrides class variable of same name in class "DC6" (reportIncompatibleVariableOverride)
 """
-conformance_automated = "Pass"
+conformance_automated = "Fail"
 errors_diff = """
+Line 47: Expected 1 errors
 """
diff --git a/conformance/results/pyright/version.toml b/conformance/results/pyright/version.toml
index 9fe61344..32f55ae4 100644
--- a/conformance/results/pyright/version.toml
+++ b/conformance/results/pyright/version.toml
@@ -1,2 +1,2 @@
 version = "pyright 1.1.401"
-test_duration = 1.1
+test_duration = 1.4
diff --git a/conformance/results/results.html b/conformance/results/results.html
index 6464e5c4..b50f2db9 100644
--- a/conformance/results/results.html
+++ b/conformance/results/results.html
@@ -159,13 +159,13 @@ <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 1.16.0</div>
-<div class='tc-time'>1.7sec</div>
+<div class='tc-time'>2.0sec</div>
 </th>
 <th class='tc-header'><div class='tc-name'>pyright 1.1.401</div>
-<div class='tc-time'>1.1sec</div>
+<div class='tc-time'>1.4sec</div>
 </th>
 <th class='tc-header'><div class='tc-name'>pyre 0.9.23</div>
-<div class='tc-time'>5.7sec</div>
+<div class='tc-time'>9.1sec</div>
 </th>
 </tr>
 <tr><th class="column" colspan="4">
@@ -353,7 +353,7 @@ <h3>Python Type System Conformance Test Results</h3>
 <th class="column col2 not-conformant"><div class="hover-text">Unsupported<span class="tooltip-text" id="bottom"><p>Does not support star expressions for `Unpack`.</p></span></div></th>
 </tr>
 <tr><th class="column col1">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;generics_typevartuple_specialization</th>
-<th class="column col2 partially-conformant"><div class="hover-text">Partial<span class="tooltip-text" id="bottom"><p>Incorrectly specializes generic alias that includes a TypeVar and TypeVarTuple if no type arguments are provided.</p><p>Rejects specialization of generic type alias defined as a tuple containing a TypeVar.</p><p>"More than one Unpack" error message has no line number.</p></span></div></th>
+<th class="column col2 partially-conformant"><div class="hover-text">Partial<span class="tooltip-text" id="bottom"><p>Incorrectly specializes generic alias that includes a TypeVar and TypeVarTuple if no type arguments are provided.</p><p>Rejects specialization of generic type alias defined as a tuple containing a TypeVar.</p></span></div></th>
 <th class="column col2 conformant">Pass</th>
 <th class="column col2 not-conformant"><div class="hover-text">Unsupported<span class="tooltip-text" id="bottom"><p>Does not support star expressions for `Unpack`.</p></span></div></th>
 </tr>
@@ -404,7 +404,7 @@ <h3>Python Type System Conformance Test Results</h3>
 <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>
 </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>
+<th class="column col2 conformant">Pass</th>
 <th class="column col2 conformant">Pass</th>
 <th class="column col2 conformant">Pass</th>
 </tr>
@@ -597,7 +597,7 @@ <h3>Python Type System Conformance Test Results</h3>
 <th class="column col2 partially-conformant"><div class="hover-text">Partial<span class="tooltip-text" id="bottom"><p>Does not apply decorator transforms before checking overload consistency.</p></span></div></th>
 </tr>
 <tr><th class="column col1">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;overloads_definitions</th>
-<th class="column col2 partially-conformant"><div class="hover-text">Partial<span class="tooltip-text" id="bottom"><p>Does not allow an overload with no implementation in an abstract base class.</p><p>Allows @override to be on all overloads and implementation, instead of just implementation.</p></span></div></th>
+<th class="column col2 partially-conformant"><div class="hover-text">Partial<span class="tooltip-text" id="bottom"><p>Allows @override to be on all overloads and implementation, instead of just implementation.</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 allow an overload with no implementation in a Protocol or an abstract base class.</p><p>Expects @final/@override on all overloads and implementation, instead of implementation only.</p></span></div></th>
 </tr>
@@ -643,9 +643,9 @@ <h3>Python Type System Conformance Test Results</h3>
 <th class="column col2 partially-conformant"><div class="hover-text">Partial<span class="tooltip-text" id="bottom"><p>Does not report when dataclass is not compatible with Hashable protocol.</p></span></div></th>
 </tr>
 <tr><th class="column col1">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;dataclasses_inheritance</th>
-<th class="column col2 conformant">Pass</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 ClassVar that is overridden by instance variable.</p><p>Does not reject instance variable that is overridden by 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 report when the default value of dataclass field is mutable (is of type list, dict, or set).</p></span></div></th>
+<th class="column col2 partially-conformant"><div class="hover-text">Partial<span class="tooltip-text" id="bottom"><p>Does not report when the default value of dataclass field is mutable (is of type list, dict, or set).</p></span></div></th>
+<th class="column col2 partially-conformant"><div class="hover-text">Partial<span class="tooltip-text" id="bottom"><p>Does not report when the default value of dataclass field is mutable (is of type list, dict, or set).</p><p>Does not reject ClassVar that is overridden by instance variable.</p><p>Does not reject instance variable that is overridden by ClassVar.</p></span></div></th>
 </tr>
 <tr><th class="column col1">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;dataclasses_kwonly</th>
 <th class="column col2 partially-conformant"><div class="hover-text">Partial<span class="tooltip-text" id="bottom"><p>Incorrectly rejects kw_only field with default before positional field.</p></span></div></th>
@@ -779,7 +779,7 @@ <h3>Python Type System Conformance Test Results</h3>
 <th class="column col2 conformant">Pass</th>
 </tr>
 <tr><th class="column col1">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;tuples_unpacked</th>
-<th class="column col2 partially-conformant"><div class="hover-text">Partial<span class="tooltip-text" id="bottom"><p>"More than one unpack" error is missing a line number.</p></span></div></th>
+<th class="column col2 partially-conformant"><div class="hover-text">Partial<span class="tooltip-text" id="bottom"><p>"More than one unpack" error is missing in some cases.</p></span></div></th>
 <th class="column col2 conformant">Pass</th>
 <th class="column col2 conformant">Pass</th>
 </tr>
diff --git a/conformance/tests/dataclasses_inheritance.py b/conformance/tests/dataclasses_inheritance.py
index 7468e379..fe6263e6 100644
--- a/conformance/tests/dataclasses_inheritance.py
+++ b/conformance/tests/dataclasses_inheritance.py
@@ -44,7 +44,7 @@ class DC4(DC3):
 class DC5:
     # This should generate an error because a default value of
     # type list, dict, or set generate a runtime error.
-    x: list[int] = []
+    x: list[int] = []  # E
 
 
 @dataclass