Here we maintain important notes on updates during Miriad 4.3.x, a.k.a. school12
- 4.3.0 - 4.3.3 were beta releases the weeks prior to the school12 release on June 14, 2012.
- new leapsecond as per July 1, 2012
- telescope=jwst during old-style install to play with large MAXANT=512 arrays
- updated primary beams for 10m (10%) and 6m (1-2%) CARMA dishes. pb.for See also carma memo 52 
- more 64bit related fixes: fits (1.21), mosmem (1.5)