v2.0.0

NATS 2.0.0 Release

• [feat] The 2.0 release has many changes and it is not API compatible with [email protected]. For more information, please see the migration document.
• [feat] The 2.0 release adds support for JetStream (on preview). JetStream functionality is described here. Some basic examples can be found here.
• [breaking] If you were using release candidates, the Events/DebugEvent/ErrorCode constants have been changed to follow ES5 naming conventions.