This is historical content, not relevant anymore but kept here as an archive. All Apache projects use the same pragmatic software license, the Apache License v2. However, we recognise that there are other FOSS licences out there, some of which are incompatible with the Apache License v2. Code under these licenses cannot be hosted on Apache servers, but people sometimes choose to, or are required to, use them. Until the launch of apache-extras these projects had no a single home to go to.
