In a modeling tool (or its documentation/website), this feature would clearly label each version or feature as:
Despite its history and the common misconception that it is open-source, StarUML is currently distributed under a proprietary license. While it offers a free version for evaluation, it requires the purchase of a license key for continued or professional use. staruml license open source or proprietary
The original version, , was an open-source project released under the GNU GPL license . In a modeling tool (or its documentation/website), this
StarUML is . It is not Open Source. The code is "Source Available" technically, but governed by a restrictive commercial license that forbids free commercial or long-term usage without payment. staruml license open source or proprietary
