Merge branch 'release' into merge-release-into-master

Author: DustinCampbell

README.md

@@ -18,6 +18,10 @@ The C# extension is powered by [OmniSharp](https://github.com/OmniSharp/omnishar
 * [Documentation](https://code.visualstudio.com/docs/languages/csharp)
 * [Video Tutorial compiling with .NET Core](https://channel9.msdn.com/Blogs/dotnet/Get-started-with-VS-Code-using-CSharp-and-NET-Core)
 
+### What's New in 1.5.3
+
+* Use value of `http.proxyStrictSSL` even when `http.proxy` is not set. ([#957](https://github.com/OmniSharp/omnisharp-vscode/issues/957))
+
 ### What's New in 1.5.2
 
 * Ensure diagnostics are cleared in files when they are no longer needed. ([#858](https://github.com/OmniSharp/omnisharp-vscode/issues/858))