Octopus Release Versioning

I am using Octopus deploy for the CD process. I would like to know the difference between Octopus.Version.NextPatch Vs Octopus.Version.Next. Is there any difference?

#{Octopus.Version.Next} isn't a valid release versioning template variable. The expected format for these variables is

• Octopus (Denoting system variables)
• Version (Denoting versioning variables)
• Next OR Last (Selecting either the previous release version or the upcoming)
• One of any of the following - Major|Minor|Patch|Build|Revision|Suffix (Selecting the specific part of the version identifier)

So, in a project where you have 0.0.2 as the last successful release, #{Octopus.Version.NextPatch} will evaluate to 3, where #{Octopus.Version.Next} will fail to evaluate and remain un-expanded.