Changes in 3.1

Below is a summary of changes from V3.0. Commercially licensed users may obtain the detailed change list / release notes from (http://downloads.kx.com)

  • improved performance of select with intervals.
  • improved performance through using more chip-specific instructions (SSE).
  • parallel processing through multiprocess peach.
  • and numerous other minor fixes and improvements.

Production release date

2013.06.09

Not upwardly compatible

  • distributed each (i.e. q -s -N) no longer opens connections to slave processes automatically on ports 20000+til N.
  • result type of E arithmetic for +-* changes from F to E. (avg and wavg still always go to F. mdev promotes to F.)`