This question came up for example in the thread SharpDev 2.2.x on BuilderServer (this thread was started because we ceased to automatically build v2.2 on 1/11/2008).

The answer is Yes. Development of SharpDevelop 2.2 stopped with revision 2675 (8/28/2007), which is three revisions higher than the officially shipping version of SharpDevelop 2.2 (Download, 8/8/2007). The three non-shipping commits are:

• 2673: Improved CSharpCodeCompletion sample: add tool tip support, show only one entry for overloaded methods
• 2674: Fixed some off-by-one bugs in the CSharpCodeCompletion example (caused by the different line counting in the parser and the text editor).
• 2675: CSharpCodeCompletionSample: show xml documentation

All three were (of course) merged into Montferrer (SharpDevelop 3.0), this merge happened in revision 2679. However, those commits did not merit a release of a new setup because those were all changes to a sample shipping only in the source download.

Since releasing v2.2.1 all work stopped on the 2.x series of SharpDevelop. Our efforts went (and still go) into SharpDevelop 3.

Read the complete post at http://laputa.sharpdevelop.net/DidDevelopmentOfSharpDevelop22Stop.aspx