1 files changed, 49 insertions, 0 deletions
diff --git a/src/inc/compatibilityflagsdef.h b/src/inc/compatibilityflagsdef.h
new file mode 100644
index 0000000000..ac621bd90e
--- /dev/null
+++ b/src/inc/compatibilityflagsdef.h
@@ -0,0 +1,49 @@
+//
+// Copyright (c) Microsoft. All rights reserved.
+// Licensed under the MIT license. See LICENSE file in the project root for full license information.
+//
+
+// This file contains list of the CLR compatibility flags. The compatibility flags
+// are used to mitigate breaking changes in the platform code. They are used to trigger the legacy
+// behavior.
+
+// The general usage pattern is:
+
+// if (GetCompatibilityFlag(CompatibilityFlag.Foo)) {
+//     // the legacy behavior
+// }
+// else {
+//     // the new behavior
+// }
+
+// Add your own compatibility flags to the end of the list. You should go through the breaking 
+// change approval process before adding it.
+//
+// Do not remove definitions for deprecated compatibility flags. Once the value is 
+// assigned to the compatibility flag, it has to be kept forever.
+
+// This file is compiled twice: once to generate managed enum in clr\src\bcl, and second time
+// to generate the unmanaged enum in clr\src\vm.
+
+
+#ifndef COMPATFLAGDEF
+#error You must define COMPATFLAGDEF macro before including compatibilityflagsdef.h
+#endif
+
+COMPATFLAGDEF(SwallowUnhandledExceptions) // Legacy exception handling policy - swallow unhandled exceptions
+
+COMPATFLAGDEF(NullReferenceExceptionOnAV) // Legacy null reference exception policy - throw NullReferenceExceptions for access violations
+
+COMPATFLAGDEF(EagerlyGenerateRandomAsymmKeys) // Legacy mode for DSACryptoServiceProvider/RSACryptoServiceProvider - create a random key in the constructor eagerly
+
+COMPATFLAGDEF(FullTrustListAssembliesInGac) // Legacy mode for not requiring FT list assemblies to be in the GAC - if set, the requirement to be in the GAC would not be enforced.
+
+COMPATFLAGDEF(DateTimeParseIgnorePunctuation) // Through to V1.1, DateTime parse would ignore any unrecognized punctuation. 
+                                              // This flag restores that behavior.
+
+COMPATFLAGDEF(OnlyGACDomainNeutral)         // This allows late setting of app domain security and 
+                                            // assembly evidence, even when LoaderOptimization=MultiDomain
+
+COMPATFLAGDEF(DisableReplacementCustomCulture) // This allow disabling replacement custom cultures. will always get the shipped framework culture.
+
+#undef COMPATFLAGDEF