The GPLv2 license is potentially problematic. Even if your product is open source, it can cause problems with libraries that use licenses that aren't compatible

The GPLv2 license is potentially problematic. Even if your product is open source, it can cause problems with libraries that use licenses that aren't compatible with the GPL, such as openssl prior to v3. This discussed more at https://trac.xapian.org/wiki/Licensing https://trac.xapian.org/wiki/Licensing To be clear, I don't hate the GPL license, although I think it is probably not the best choice for a library. But from a licensing perspective, xapian is pretty different from SQLite