v4.1
Today we modified the way how data are packed into socket connection and with this improvement your php instance will use less memory and handle even bigger datasets. This change doesn't affect current implementations but it introduces support for providing iterator as cypher query parameter.
If you are interested about this feature head into Performance test.
If you like the driver, please consider supporting it in the form of a donate on https://ko-fi.com/michalstefanak
Full Changelog: v4.0.1...v4.1