This section provides a series of guides for migrating from one version of the Cloud Native Buildpack API specification (either buildpack or platform) to the next. Most buildpack users won’t need this information unless they are writing a buildpack or a platform that supports buildpacks.

Each guide describes changes from the previous minor, who these changes impact, as well as any actions that may be necessary.

The following guides are available:

Buildpack API 0.4 -> 0.5

Buildpack API 0.5 -> 0.6

Platform API 0.3 -> 0.4

Platform API 0.4 -> 0.5

Platform API 0.5 -> 0.6

Platform API 0.6 -> 0.7