release.txt SEAWAT Release Notes This file describes changes introduced into SEAWAT Version 4 with each official release; these changes may substantially affect users. In this file, packages and processes are referred to by their 3-or 4-character abbreviation. NOTE: Any use of trade, product or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. o Version 4.00.05 10/19/2012: Corrected programming errors in the variable density parts of the CHD and GHB packages. Added a routine to deallocate memory for VDF variables. Corrected an MT3DMS programming error related to changes in water storage. Added suppport for MT3DMS recirculation wells. o Version 4.00.04 2/7/2011: Corrected a programming error in the Drain Observation package and in the Transport Obserservation Package. There were reports that the SEAWAT executable would not run on the Windows 7 operating system. These executable programs were compiled with Intel Visual Fortran Composer to fix that problem. The distribution now includes a makefile, which can be used with Intel Visual Fortran Composer to create executables using the NMAKE command. o Version 4.00.03 9/21/2009: Corrected several programming errors and implemented an indexing option that may improve computational efficiency for variable-density solute transport models with numerous rivers, wells, and general-head boundaries. Program updated with MODFLOW Version 1.18.01. o Version 4.00.02 9/19/2008: Corrected two programming errors, both related to memory conflicts. The MNW Package may not have worked correctly in previous versions of SEAWAT Version 4. Also, the OBS Process may have had a memory conflict with the MT3DMS Process. o Version 4.00.01 4/29/2008: Corrected a programming error caused by implementation of the flow field update control option. The error resulted in dcdt terms that were too large. o Version 4.00.00 3/28/2008: This is the first public release of the SEAWAT Version 4 program, which is documented in Langevin et al. (2007). In addition to the new features, this release contains fixes for several bugs found in earlier SEAWAT Versions.