If you have a problem opening documents in the old version of the SMath Studio please write about it in this thread.

An old version means the one that was before the last stable release.

You must indicate the version number of the SMath Studio (use the function appVersion(4) for this) and attach the document with which you are having problems, and also describe why you think there is a problem.

If your version of the SMath Studio is newer than the last stable release, then you can create a separate topic or describe the problem in the topic where the document was attached. Also you can use the BTS.