Released versions of package DATA
                                                                   
                                                     
    5.90 (2005, June):
            LEN:
            'len-mod.h':  Minor change in GOCAD instructions.
            ELF1:
            'elf1-mod.h': Minor change in GOCAD instructions.
            EX:
            New model with planar interfaces.
            QI:
            'qi-ss4m.h': 'tableicr.for' and 'tableacr.for' substituted
              by 'watable.for'.
            'qi-rpaa.dat': Change of shooting parameters for model QI8.
            'qi-anray.h': The possibility of misusing wrong output files
              in cases when the right output files are not generated
              disabled.
            'anray7.qi','anray8.qi': *** Change of shooting angles. ***
            'tableacr.for': Second order perturbations along anisotropic
              common S-wave ray added.
            'qi-acr.h': Change of UEBMUL to get the same results as
              in version 5.70.
              'qilst.for' substituted by 'watable.for'.
            'tableacr.for','tableacr.for','qilst.for': Removed,
              substituted by program 'watable.for'.
            SD:
            'sd1-mod.h','sd2-mod.h': Minor change in GOCAD instructions.
            98:
            '98-mod.h':  Minor change in GOCAD instructions.
            SAL:
            New example of ray computations in smoothed SEG/EAGE model
              added (comparison of finite-difference and ray-theory
              seismograms, shot 145).
            WB:
            'wb2-mod.h'  Minor change in GOCAD instructions.
            CV:
            'cv-inv.h': Minor change - number of iterations must be
              selected by the user prior to calculation.
                                                     
    6.00 (2006, June):
            PREM:
            'prem-mod.h': History file to transform surfaces and
              a velocity section into VRML or GOCAD.
            L7:
            'l7-crt.h': Default output file changed from Gocad to VRML.
            MAR:
            'gpaxxx.h','gpmxxx.h','gpa.h','gpm.h','gpa-sm.dat',
              'model2.dat','mar-mod2.dat','gb2-crt.dat','gpm-mod.dat',
              'gpm-crt.dat','gpm-writ.dat','gpanal.for','gpstep.for',
              'gpmig.for','fgpm.pl': New programs and an example for 2-D
              Gaussian packet prestack depth migration.
            U2D:
            'u2d-tt.h','u2d-writ.dat','u2d-ttc.dat': New data for
              plotting travel times.
            'u2d-pap.htm': Updated.
            QI:
            'qi-ss4m.h','qi-ss.h': Calculation of coupling ray theory
              seismograms along the common anisotropic rays with
              the second-order perturbations added. Comments updated.
            'qi-ss.h': Compilation of auxiliary programs added.
            TC:
            'greentc.for','greenmul.for': Undefined value UNDEF
              is now determined by function UARRAY of file 'forms.for'.
            'tc.h','tco.h': Compilation of auxiliary programs added.
            SAL:
            'sal-ray1.htm': Updated.
            's145oe1.h','s145oe2.h','s145oe3.h','s145oe4.h',
              's145oe5.h','s145oe6.h','s145se1.h','s145se2.h',
              's145se3.h','s145se4.h','s145se5.h','s145se6.h',
              's145se7.h','s145se8.h': Calculation of travel-time curves
              added and calculation of individual seismograms removed.
            'oe-ttc.dat','se-ttc.dat': New files.
            CV:
            'cv-inv.h': Check for files '*.cal' added.
            CORFUN:
            New directory with history files for correlation
              functions of random media moved here from package FORMS.
            'cknfft.h': *** Several serious bugs fixed. ***
            'corfft.h','corfun.h': Comments updated.