TABLES v3.1 RELEASE SUMMARY This release of TABLES incorporates relatively minor updates to applications and libraries. The full details can be found in the full release notes. The Science Software Group is engaged in an effort to move to having most of its software development done in Python. This release of STSDAS/TABLES (v3.1) has tasks that require our command language for IRAF called PyRAF (see pyraf.stsci.edu). PyRAF 1.1 is being released at the same time as STSDAS/TABLES v3.1. Only STSDAS has Python-based tasks in this release. No tasks in TABLES are Python-based tasks, though this may not be true in future releases. Packages or tasks that have had minor enhancements or bug fixes include: ttools..thedit Changes to libraries: gflib tbtables Parameter files that have changed (new parameters or new default values, excluding parameters indicating version number changes): fitsio/strfits.par - 'oldirafname' default changed (to yes)