With this patch applied, nworks 5.7 MP/SPI are compatible with all vSphere 5.x versions. All functionality introduced for support of vSphere 5.0 will be available. Note that no additional events or metrics specific to vSphere 5.1/5.5 will be collected.
Note, that once the patch is applied, you will see a warning in nworks UI, because the collector version will be later than that of the Enterprise Manager. The warning is expected and does not indicate any issue; it can be safely ignored.