I sent this e-mail a few weeks ago in hopes to validate the accuracy of the new equest 3.63. I have heard back about bugfixes you can place in your bdl code as well as a pending release. The only problem is the bug fix is for when your heating and fan energy is increasing. My gas usage is dropping when running my old file in the new equest. Has anyone heard anything else about any of the problems (bugs) with 3.63. I am honestly worried about switching over. Has anyone else still been running into these problems?