Question Plesk Onyx 17.0.17 vs. 17.5.3

[speedbird]

Hello Plesk team,
since most of what the "what's new section" says is already included in Plesk 17.0.17 like git, node.js, ruby etc., I wonder what the actual difference between 17.0.17 and 17.5.3 really is beside a new version number.

Is is recommended to update? Will 17.0.17 receive further updates? Can I upgrade when using a custom domain template for the nginx client_max_body_size workaround?

Thanks for pointing me in the right direction.