For customers running versions outside the Sage X3 Lifecycle Policy, you need to be very careful when considering patching any of your X3 components in isolation.

A clear example of this is the latest Syracuse version 12.10 which has been significantly updated with the latest NodeJS versions and is only compatible with 2020 R1, R2, R3, R4 and 2021 R1.   Syracuse 12.10 or later cannot be applied to 2019 R5 (12.0.20) or earlier

If you are using 2019 R5 (12.0.20) or earlier and need to apply the latest Syracuse patch, you MUST upgrade your Sage X3 application patch level as part of your upgrade process.  In this situation, Sage Support would strongly advise you apply all the latest patches, as documented in https://www.sagecity.com/gb/sage-x3-uk/f/sage-x3-uk-announcements-news-and-alerts/146573/sage-x3-version-12-february-2021