Hi, I diffed my reader test up through 9da40741891e7b7d11b75f3b1bc78361a8ba2c7a (1.9.15) with the last time I tried it at around 1.9.14. As expected, there are a lot of changes in the zeros, inf.0, etc. I've attached the side-by-side diff. On the left is the update, on the right is the 1.9.14. The four columns on each side are - The test number - The string that was read - How the output looks when written - How the output looks when displayed One of the things that looks odd are the complex numbers in polar format 0@+nan.0 equals zero, for example. (Hope this attachment isn't too big. I'm not sure what the rules are for that.) Thanks, Mike Gran