We got SQL Server 2008 R2 Service Pack2 to test and implement on your data platform, now you need to concentrate on Feature Pack for this version too that will help to enhance your programming/design/architecture/support projects.
Feature Pack as the name stands there are multiple packages available to be applied on environment (X86 or X64) depending upon the kind of development and design using SQL Server technologies. Here is the Feature Pack list you can vist and download required package.
Just a note from that page:
The Microsoft® SQL Server® 2008 R2 SP2 Feature Pack is a collection of stand-alone packages which provide additional value for Microsoft® SQL Server® 2008 R2. The packages provided include the latest versions of:
Note: Some components in the Microsoft® SQL Server® 2008 R2 SP2 Feature Pack of SQL Server® have certain Internet-enabled features, including the Customer Experience Improvement Program and Error and Usage Reporting component, enabled by default to help us identify and address issues that you may encounter while using SQL Server®. For more information and instructions on how to disable these features, see the SQL Server® Privacy Statement
Always the best practice is to download required components on your development platform to test the new features associated within this SQL2008 R2 SP2 related version. Better be secure ... than sorry at later time!