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                                Tesseral 2D Release Notes
                              (C) Tesseral Technologies Inc. 
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New features in 7.1
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  In 7.1.3
- fixed bug in NMO procedure when using TGR file format 
- added the ability to run multi-threaded calculation in the case of alpha-numeric license
- fixed displaying the number of threads in use during computation.

  In 7.1.2
- migrations (with exception of VSP) use *.tgr and *.sgy directly without 
  conversion to .rec
- added creation of *.xgy files for VSPSEC
- fixed pigration options initialization
- default output format for migration (except VSP) is SEG-Y
- improved default apertures for MIGVSP
- small bugfixes in 2D simulation

  In 7.1.1
- computations now navively support x64 CPUs on 64-bit OS and can use all available 
  memory (>2GB).
- fixed a bug in simulation of exploding horizons by all finite-difference methods
- corrected energy component in first arival time field
- important improvements of eikonal ray tracing method: illumination distribution over 
  Fresnel zones, reflections from polygon bottoms and better difraction point handling

  In 7.1
- added ability to project shotpoints or recievers also onto the bottom of a polygon
- automated correlation of synphase lines for source and reflected waves during 2D AVO modeling. The lines can also be edited manually
- automated loading of *.sgy files obtained as the result of a migration
- bug fixes and stability improvements

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New features in 7.0
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  In 7.0.6
- fixes in Eikonal ray tracing (applied fixes from 6.5.5f)
- fixed snapshot viewer for files > 4GB

  In 7.0.5
- fixed polygons generation from LAS-files
- fixed task generation for 2.5D simulation
- added ability to change the order of polygons

  In 7.0.4 
- fixes in Eikonal ray tracing simulation (applied fixes from 6.5.5e)
- fixes in VSP simulation (applied fixes from 6.5.5e)
- fixes in NMO procedure 

  In 7.0.3 (applied fixes from 6.5.5d)
- fixed first arrival method of time field generation
- tiny fixes in anisotropy modeling

  In 7.0.2 
- add ability to manually specify the number of cores per process for parallel tasks

  In 7.0.1 
- store default startup directory in the system registry
- information on processor utilization during computations

  In 7.0.0b (applied fixes from 6.5.5c)
- save license keys in HKEY_LOCAL_MACHINE so all users may use it
- deploy .MSI package instead of .EXE

  In 7.0.0a (applied fixes from 6.5.5b)
- fixed an error message for old Sentinel RMS licenses

  In 7.0
- added Visco Elastic modeling procedure
- added Ray Tracing modeling procedure

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New features in 6.5
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  In 6.5.5c
- save license keys in HKEY_LOCAL_MACHINE so all users may use it
- deploy .MSI package instead of .EXE

  In 6.5.5b
- fixed an error message for old Sentinel RMS licenses

  In 6.5.5a
- Improvements to user interface: updated Framework dialog and new Full-wave modeling dialogs
- added Vertical Dipole and Vertical Monopole source modes
- added Sentinel licensing
- added ability to migrate when observation system spans beyond the raster model boundaries 
- implemented better access to context help
- implemented support for GXII format
- improved 2.5D modeling
- improved GATHER procedure
- fixed network licensing, improved license testing speed
- fixed adding traces of multi-partitional seismograms
- fixed loading LAS files with imperial units
- fixed model-building bugs when creating new polygons
- fixed correlation between wells when building model by well-log data
- fixed saving shot point type
- fixed export of seismograms
- fixed loading of SegY files
- fixed Depth Kirchhoff VSP migration
- other bug fixes and stability improvements