Began upgrading a customer's SiteMinder v12.52 environment to v12.7 last evening. Had reservations about switching from x32 to x64, given the unknowns. The upgrade itself went very smoothly and the server began taking traffic with no issues. Enhancements to adminUI are a welcomed change (some of those were in 12.6 also). We did have some java custom code in this environment, all worked with no additional changes required.
Good job CA. Impressed!