Known differences in boost random output from 1.58 to 1.67?

I am working with some legacy code I didn't write that generates random data. The output has changed after it was updated to 1.67 boost from 1.58. Normally reproducible output happens by a fixed seed key. But they are now different between new and old versions.

The boost random distributions used include uniform_int, uniform_real, exponential_distribution and normal_distribution. Does anyone have specific knowledge that one of those or more is now different wrt the boost versions I've mentioned?

I may have to write a simple test prog to ascertain this for sure.