Hello @AHaslett
Platform v7.4.x was released in March 2023, so we're coming up on 18 months soon. Including Platform v8.4.0, planned for relase later this month, there will have been 5 platform releases subsequent to v7.4.
OneStream is strongly recommending customers get to Platform v8+ to realize technology modernization, performance, functionality, and usability enhancements (modern browser experience is GA with Platform v8.4!).
You can reach out to me directly at dcorbett@onestream.com or initiate discussions with your Customer Success Manager. Thanks for asking!