Sage 100 version 2021 for the first time is available in both 32-bit and 64-bit versions. The difference between the versions is largely for compatibility with applications that might integrate to Sage 100 and require 64-bit technology.
There does not at this time appear to be much reason to install the 64-bit version and I expect most users wil upgrade to the 32-bit release. And it’s worth noting that you cannot install both the 32-bit and 64-bit versions on the same computer. Sage offers a conversion utility for version 2021 users who may need to switch to ( or from ) the 64-bit Sage 100 version.
However, it bears note that should you decide to install the 64-bit version of Sage 100 that you review the 2021 Integrated Solutions Compatibility Matrices ( ISCM ) .
The latest ISCM for Sage 100 2021 notes that Sage Intelligence reporting does not support the 64-bit version of Sage 100 although it does support either 32-bit or 64-bit versions of Microsoft Excel ( desktop only ).
Review the most current Integrated Solutions Compatibility Matrix for Sage 100 version 2021 on the Sage website here.
As of May 2021 Sage 100 versions 2019, 2020 and 2021 are officially supported by Sage.