diff --git a/features.json b/features.json
index 64541374..eda1bfc1 100644
--- a/features.json
+++ b/features.json
@@ -654,11 +654,14 @@
         "customDescriptors": null,
         "customPageSizes": "0.9.0",
         "esmIntegration": null,
+        "exceptionsFinal": "0.9.1",
         "extendedConst": "0.9.0",
+        "gc": false,
         "jsPrimitiveBuiltins": null,
         "jsStringBuiltins": null,
         "jspi": null,
-        "multiMemory": ["flag", "Compile with `d_m3HasMultiMemory` set to 1"],
+        "memory64": "0.9.1",
+        "multiMemory": "0.9.1",
         "multiValue": "0.5.1",
         "mutableGlobals": "0.5.0",
         "numericValuesInWat": null,
@@ -666,10 +669,14 @@
         "referenceTypes": "0.9.0",
         "saturatedFloatToInt": "0.5.0",
         "signExtensions": "0.5.0",
+        "simd": false,
+        "stackSwitching": false,
+        "threads": false,
         "tailCall": "0.9.0",
         "typedFunctionReferences": ["flag", "Compile with `d_m3HasTypedRefs` set to 1"],
         "typeReflection": null,
-        "webContentSecurityPolicy": null
+        "webContentSecurityPolicy": null,
+        "wideArithmetic": false
       }
     },
     "Wasmi": {