Release Date: December 14, 2017 - Visual Studio 2017 version 15.5.2
https://www.visualstudio.com/en-us/news/releasenotes/vs2017-relnotes#15.5.2

> Xamarin Android project cannot build because R$anim.class is in use.
> Failed to load package MonoAndroidDesignerPackage.
> Crypto++ with default optimizations falls into infinite compilation when trying to optimize blake2.cpp.
> Migrating from VS2017 15.4 to 15.5 causes CS026 - "The type or namespace name XXX could not be found..." error.
> Installing Visual Studio 2017 Community 15.5 with Option Strict On creates Intellisense errors in VB projects.
> Infinite compilation time when trying to optimize blake2.cpp.
> Random engine crashing in the VS 15.5 optimizer.
> Migrating to VS 15.5 (from 15.4) cannot compile mhook:disasm_x86.c.
> Unity + new VS Community 15.5 install results in namespace not recognized.