Why lot of versions of dot net

Question

After getting news of Microsoft is ready to introduce new version of dot net and after visiting this site I am giving my following comments

http://www.ianquigley.com/A75_New_features_of_VS2012_revealed.html

Why Microsoft publishes their version so early, even their last version did not get hold they introduce to us new version, how many years(we can count in days) passed releasing vs 2010. this is not done. this mean i am not happy with their functionality which they are providing. I love vs. Only i want t say in short that they should take their time and release version giving all functions at the most time. how many version java has published since launching still it is popular. I am not comparing here java and dot net

Suthish Nair · Answer

Because its a business they need to sell their products.

Sam Hobbs · Answer

Note that previous versions of Visual Studio were 2008 and 2005. I think before that the year was 2003. So there are two to three years between versions of VS. I think that something similar is done for Office. Now .Net is free and I don't know how Microsoft can profit from making us upgrade it but in the case of VS and Office each new version has a little bit of improvement and even though we don't need all improvements Microsoft usually requires us to buy each new version even if we need only a little bit more.

Mahesh Chand · Answer

This is a good question. Actually they take lot of time to release a new major version. .NET 1.0 - 1999 .NET 4.0 - 2010 So you can see there are only four versions in 11 years. I think their goal is to release a major version every 2 years.