The GNU General Public License (short GNU GPL or GPL; literally for general release permission or permission) is the most widely used software license that allows you to run, study, modify, and distribute (copy) the software.
GPLv3 improved compatibility with several open source software licenses such as Apache License, version 2.0, and the GNU Affero General Public License, which GPLv2 could not be combined with.
BlueSpice extensions have been released under this license as far as possible.
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