# System.Reflection.Metadata ## Information * [NuGet Package](https://www.nuget.org/packages/System.Reflection.Metadata) * [Report an issue](http://github.com/dotnet/corefx/issues/new) * [Source](https://github.com/dotnet/corefx/tree/master/src) ## Version History ### 1.0.21 * First stable release * [Breaking change] Support for very large heaps. Introduces `EntityHandle` for non-heap handles and modifies the API to work with them wherever possible. * Fix issue running in a Windows Store App on a machine with .NET 4.6 installed. ### 1.0.19-rc * Small bug fixes ### 1.0.18-beta * [Breaking change] Fix spelling error in `MetadataTokens.ExportedTypeHandle` method * Fix race condition when calling `GetMetadataReader` concurrently on the same `PEReader` * Minor performance optimizations ### 1.0.17-beta * Renamed the package from `Microsoft.Bcl.Metadata` to `System.Reflection.Metadata` - In order to get the new version, uninstall `Microsoft.Bcl.Metadata` and install `System.Reflection.Metadata` instead - The name of the .DLL is unchanged * Minor bug fixes ### 1.0.11-alpha (Microsoft.Bcl.Metadata) * Optimization data added for Roslyn * Minor bug fixes ### 1.0.9-alpha (Microsoft.Bcl.Metadata) * Initial release