A key feature of TYPO3 today is its extendability and flexibility. Writing extensions was never easier since the Kickstarter, and tslib_piBase. But, time doesn't stand still: new programming paradigms other innovative frameworks came up. It's time to take a next step to faster, cleaner extension coding. With the new Version 5 of TYPO3 and its basis FLOW3 the way to develop extensions will change fundamentally. With Extbase - the new framework for extension development introduced in TYPO3 4.3 - you are able to develop with the paradigms of FLOW3 today. During this talk, you get in touch with the features of the framework to understand how it supports your development process. We also address the users perspective by discussing best practices how to migrate to TYPO3 v5.