APIs change, but don't worry
But from time to time things change or we simply discover a bug. For example on the CURLMBS class we had several changes over the last years. With newer CURL library versions there are options going away and new options being added. Whether an option in CURL is an integer or a boolean is not always well documented, and sometimes changes over time. So a few properties like OptionFTPCreateMissingDirs changed their type from "boolean" to "integer" to allow a third state. Other properties changed because we simply chose the wrong REALbasic data type. Also we had a typo error in our code so we renamed GetInfoResposeCode to GetInfoResposeCode.
If you have an old project which does no longer compile or function properly, you can try to fix it yourself. But before you become frustrated, please email us. Maybe you missed just a little note in our release notes. Good night.