Well, you don't have to uninstall it, but to be clear, installing a newer version of CF is always installed "alongside" an earlier one. It never "updates" it, except in the case of updaters (such as 9.0.1 over 9.0, 8.0.1 over 8.0, etc. And FWIW for any curious, 9.0.2 was NOT an updater but rather a full installer.)
So it's not that you MUST uninstall 9 first, no. You could, and perhaps should. Two points of warning: if you do uninstall it, you will lose the CF Admin settings such that when you install 11 it will not be able to import those settings automatically. That may be a reason one would be tempted to leave it in place. Then again, many find that if they try to install CF10 or 11 on a server running CF9 or earlier (and configured with IIS) it can cause problems, because the approach used by CF to configure IIS 7 settings in CF9.0.1/9.0.2 (the only releases before 10 to support IIS 7) was quite different than that used by CF 10/11. Finally, along those lines, if you may choose to uninstall CF (to hope to avoid that last problem), do note that uninstalling CF does not necessarily completely "unconfigure" all the IIS settings, so it would be wise to use the CF9 web server configuration tool , remove all the connectors, and THEN uninstall CF. You may find that would make your move then to 11 (or 10) go much more smoothly. /charlie -----Original Message----- From: ad...@acfug.org [mailto:ad...@acfug.org] On Behalf Of Forrest C Gilmore Sent: Monday, June 09, 2014 6:11 PM To: ACFUG Discussion Subject: [ACFUG Discuss] Upgrading to CF 11 Question I currently have CF9 Developer on my PC. I'm ready to install CF11, but I want it to replace CF9, not preserve it. I know the two can co-exists, but that is not what I want. Must I first uninstall CF9, or what? Forrest C. Gilmore
