We can update your SIMPL# libraries even if you only have the CLZ but no source code! Our programmers have developed a private tool that updates the old Newtonsoft.Json.Compact assembly references within a CLZ from version 22.214.171.124 to 126.96.36.199 seamlessly.
We will contact you upon payment and request the CLZ you need to have updated. You will receive an updated CLZ that you can use with the latest 200+ database in return. (Typical response times are usually immediate. Please allow up to 24 hrs for a response, in case of any time zone differences.)
Note: It is advised to reply to the email with a download link rather than attaching files directly to the email. This is to avoid potential issues with the email being received due to SMTP server security and filesize limitations.
Crestron link: https://support.crestron.com/app/answers/detail/a_id/1000674
Updating an older version of a CLZ that is being used on an older system where updating to the latest version might not be appropriate. (i.e. You want some level of consistency, and the latest version may have been compiled against the updated Newtonsoft library, but code changes were also introduced.)
You need to continue using a library that was developed by a third party that is no longer in business, or perhaps they lost the original source code.