Version 4 of the Nexmo Java Client Library Is Here

The newly released Nexmo Java Client Library version 4.0.0 introduces a new major version, dropping official support for Java 7 and targeting Java 8 instead. This change aims to improve the user experience by providing a more intuitive way of instantiating the NexmoClient object, renaming NCCO classes to action classes with names like TalkAction and InputAction, and introducing a builder pattern for number insight requests. The library now uses a six-month release cadence, and some internal classes have been updated to discourage direct use and encourage updates. The change also includes improvements in the handling of authentication schemes and API keys.