The following table shows the supported Integration SDK versions for each Appian release (starting with the initial release in 19.1). All entries assume you are running the latest hotfix.

• Component plug-ins reference the SDK version in the plug-in manifest
• Connected system plug-ins reference the SDK version in the project's dependency file (e.g. build.gradle).
• Our SDKs use the semver standard.

Appian Version	Component Plug-ins	Connected System Plug-ins
22.4	SDK Version: 2.0.0	Core: 1.2.0 Client: 1.1.0
22.3	SDK Version: 2.0.0	Core: 1.2.0 Client: 1.1.0
22.2	SDK Version: 2.0.0	Core: 1.2.0 Client: 1.1.0
22.1	SDK Version: 2.0.0	Core: 1.2.0 Client: 1.1.0
21.4	SDK Version: 2.0.0	Core: 1.2.0 Client: 1.1.0
21.3	SDK Version: 2.0.0	Core: 1.2.0 Client: 1.1.0
21.2	SDK Version: 2.0.0	Core: 1.2.0 Client: 1.1.0
21.1	SDK Version: 2.0.0	Core: 1.2.0 Client: 1.1.0

See also:

• Component Plug-in Versioning
• Component Plug-in Configuration Files
• Connected System Plug-in Versioning
• Connected System Plug-in Configuration Files