xAPI and product versions
Simplest Data Docs
Simplest Data Docs

#xAPI and product versions

Product releases and xAPI protocol versions are separate contracts.

Version kindCurrent valueMeaning
Simplest Data LRS release1.0.3Version of the LRS application artifact.
Supported xAPI versions1.0.3, 2.0.0Protocol versions clients can use with this release.
Primary documented version2.0.0Version used throughout the developer examples.

Version distinction

Simplest Data LRS 1.0.3 (Codd) is the product release version. xAPI 1.0.3 identifies a separate protocol contract; matching numbers do not make the two version schemes interchangeable.

#Required request header

Except for GET or HEAD requests to /xAPI/about, xAPI requests must include a supported version header:

http
X-Experience-API-Version: 2.0.0

Use 1.0.3 when your client specifically requires that protocol version. For new examples and integrations, use 2.0.0.