After we released the first preview of our new UI Extensions for ASP.NET MVC in August, there were naturally many questions surrounding the release. Why is Telerik building MVC Extensions? What does this mean for WebForms? Are the Extensions for MVC really open source? To help address some of the burning questions, I created a complete list of answers in Part 1 of my "Unofficial FAQs" for MVC. Many of those answers remain valid today with the release of Q3 2009, but there are some new questions that I'm starting to see asked multiple times.
- GPLv2 - This is a very popular and common open source license (I've seen some stats that say 70% of OSS is GPL licensed). It allows you to freely use the Telerik Extensions for ASP.NET MVC in any project. The only restriction is that you cannot redistribute software that uses GPL code under a more restrictive license (like a "proprietary" license). For that, we offer a...
- Commercial License - The commercial license provides you (today) with at least two very important benefits: 1) it grants you access to Telerik's legendary support, and 2) it gives you a legal (and lawyer pleasing) way to use the Telerik Extensions in proprietary, redistributed software.
- GPL is a popular and widely used open source license (Linux is licensed under the GPL) that many businesses already know how to understand (read: the lawyers have already approved the GPL)
- GPL has a good "philosophy." It basically says, if you want to use our generosity to build software, all we require is that you pay it forward (i.e. keep your software free). If you instead want to make money off of your software, then we are now in a commercial relationship, and we simply ask that you pay us for our work just as you expect to be paid for your proprietary software.
- GPL is the most community friendly open source license in that it ensures the "intent" of open source developers is respected. That is, open source licenses are for open source developers. If you are a commercial developer, you need a commercial license.
- Do you plan to redistribute your software? -->NO: GPL will have no impact on your software -->YES: ====>Commercial? GPL is not ideal. Purchase a Telerik Commercial license. ====>Open source? GPL is fine as long as your OSS license is compatible.
- Access to Telerik's premium support
- Access to Major Release and Service Pack builds (OSS project will only receive Major release builds)
- Ability to use Extensions in closed-source/proprietary projects