Microsoft .NET Framework 4.5.2 has been released and available for download from Microsoft Download Center. You can download and install this highly compatible .NET version over .NET Framework 4, .NET Framework 4.5 and .NET Framework 4.5.1. FYI, Windows 8 already comes with .NET 4.5 and Windows 8.1 update includes .NET 4.5.1, so you need to install this update on Windows 7 Service Pack 1, Windows 8, Windows 8.1 and other supported Windows Operating systems.

.NET Framework 4.5.2  

Download Microsoft .NET Framework 4.5.2 (Web Installer) [size: 1.1 MB]

Download Microsoft .NET Framework 4.5.2 (offline installer) [size: 66.755 MB]

After installing the update, you need to restart your computer.

Microsoft .NET Framework Repair Tool

.NET Version Detector, Check Which Versions of .NET Framework Installed on your Computer

Check KB2901954 for more information and here is link to .NET 4.5.2 readme file.