Incompatibility issue on SDK between New version (8.0.0) and old one (5.0.0)

[Liiiiinn]

Hi, recently, I was trying to upgrade to the latest version of hubpsot api-sdk, but got many failures on methods like product. create etc. Looking into the issues, I found there are two issues that didnt exist on the older version: 
1. problem: Names for properties should be lowercase and have less than 100 characters.
2. Invalid names: 
Just wonder is the newer version able to support backwards compatability?  Is this a potential bug for the latest one? How long we can use 5.0.0 version until it is deprecated? 
Thanks

[Jaycee_Lewis]

Hey, @Liiiiinn 👋 Thanks for reaching out. Have you posted your bug reports over in the repo itself? That will be the most direct way to get your specific questions addressed.

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Best,

Jaycee