1.5.0
    Update to latest killbill 1.6.0 (new entitlement apis)

1.4.1
    Update to active_merchant 1.36.0 (no need for custom build anymore)

1.4.0
    Update to killbill 1.4.0

1.3.0
    Update to latest killbill (1.3.0 version)

1.2.0
    Update to killbill 1.2.0

1.1.0
    Update to killbill 1.1.2