Dabo features Web Update, which will compare your installed version of the framework and tools with the latest stable revision on the Dabo server. If it finds that a newer version is available, you will be asked if you want to update to the latest version. If you answer Yes, any changed files will be copied to your machine, keeping you up-to-date as quickly and effortlessly as possible.
If you are using Subversion to check out the latest revision of Dabo, then Web Update will not be available. The reason is that updating revisions from outside of subversion will confuse the version control mechanisms, and cause problems, so Dabo checks for the presence of those .svn folders, and if it finds them, disables Web Update.
If you wish to switch from Subversion to Web Update, you can delete your current copy of the framework, and grab another using the svn export command instead of svn checkout. This will grab the latest revision from the repository, but will just copy the files without the version control information. You can then keep Dabo up to date with Web Update.
Normally, the first time you run any Dabo app (such as DaboDemo, ClassDesigner, etc.), it should prompt you to set up your web update preferences. You can set it to check for updates at regular intervals, but note even if it sees an available update, it will never update without first asking you.
You can also manually run the update by selecting the Edit->Preferences menu item; one of the pages in the prefs dialog is for web update, and there is a button for running the update manually.
See also Updating Dabo