# 2. Release Notes

- Systems that have been tested are:

  - Linux (various flavors/distros), 32 bit, with gcc

  - Linux (various flavors/distros), 64 bit (x86), with gcc, Intel, and Portland (*)

  - OS X (10.7 and above), 32 and 64 bit (x86_64), with gcc (*)

- PRRTE has taken some steps towards Reproducible Builds (https://reproducible-builds.org/). Specifically, PRRTE’s `configure` and `make` process, by default, records the build date and some system-specific information such as the hostname where PRRTE was built and the username who built it. If you desire a Reproducible Build, set the `$SOURCE_DATE_EPOCH`, `$USER` and `$HOSTNAME` environment variables before invoking `configure` and `make`, and PRRTE will use those values instead of invoking `whoami` and/or `hostname`, respectively. See https://reproducible-builds.org/docs/source-date-epoch/ for information on the expected format and content of the `$SOURCE_DATE_EPOCH` variable.