The project team releases new major versions roughly on a yearly cadence. LTS release status is "long-term support", which typically guarantees that critical bugs will be fixed for a total of 12 months until a new major release is made.
Current version (Stable)
Here you can find documentation for previous versions of WebdriverIO.
|v5||Documentation||Release Notes||LTS (until April 2021)|
|v4||Documentation||Release Notes||Deprecated (since December 2019)|