When developing any Clover extension please do always respect intellectual property rights.

Software licences:

• Clover Core is licensed under Apache 2.0 License
• Most of Clover plugins are licensed under Apache 2.0 License
• Bamboo Clover Plugin is proprietary software, see Bamboo Clover Plugin Developer Guide
• Clover documentation on confluence.atlassian.com is under Creative Commons License, see Contributing to the Clover Documentation

When contributing to Clover:

• never copy-paste code 
• never use libraries with unknown license
• follow the Upgrading libraries in Clover sources rules
• follow the Atlassian Trademark Guidelines (it covers product naming, logos, look and feel)
• follow the Atlassian Design Guidelines license
• you can keep com.cenqua and com.atlassian packages in the source code (for backward-compatibility reasons)