We have been happily using
VFX Forth 64 5.20 RC2 [build 0114] 2021-05-27 for Linux x64
for quite a while now.
We thought we ought to update to the latest version.
VFX Forth 64 5.20 [build 0131] 2022-09-12 for Linux x64
Now our application does not start. The problem appears to be with the floating point system, but after two man-days struggle, we still can't exactly pinpoint it.
N.B. On build 114, FpSystem . returns 4.
On build 131, it returns 2. But attempts to use SSE64setup do not fix the problem.
We can't see anything in the release notes to indicate what might have gone wrong.