The "Customer login" allows all licensed users of

                         MLU for Windows

         to download the latest version anytime.

===========================================================

         VERSION HISTORY of MLU for Windows


MLU 2.21: August 2010

* Rectangular raster image maps can be imported and displayed as
  background in contour plots. This includes raster files of the types:
  bmp, png, tif (or tiff), jpg (or jpeg) and gif. Some types of tif-files are 
  not supported (only a grey rectangle is displayed).
  To georeference the image map an associated world file is required
  with the same file name and the extension .bpw, .pgw, .tfw, .jgw  or
  .gfw respectively.
  Further details can be found at http://en.wikipedia.org/wiki/World_file 
  To import a file use: Main menu Import/Import image files/Add 
* Several contiguous image maps can be displayed at the same time.
* Right clicking in the contour plot//Chart options.../Background allows
  adjustment of the brightness (tranparency).
* Use Main menu/View/Background images (Ctrl-B) to switch the 
   background images on and off.
* All information of loaded image files is saved with an MLU file, to 
  restore the images upon reloading of the project.


MLU 2.20: April 2010

* Left clicking in the contour plot opens a pop-up window for zooming and
  some Chart options
* Zooming options are: Zoom area, Previous view and Zoom out (-)
* Chart options handle drawing of: Boundary, Grid and a simple Legend
* By default 'Save' and 'Save as' try to save the file in the map where the 
   file was loaded or last saved, as indicated by the text on the blue bar.


MLU 2.15: February 2010

* The maximum number of pumping periods per well is set to 50.
* During the optimization process calculations can be interrupted 
   with the [Stop] button. An interruped optimization process can be 
   continued [Run] or stopped [Cancel].
* When MLU has found a solution the user has to either accept 
   or reject the results.
* The MLU button on the Windows taskbar shows the file name of 
   the current model.


MLU 2.07: December 2009

* The red Optimize button turns blue when optimization results 
   become available for the present model
* The "Previous graph" button temporarily brings back the previous 
   Time graph for a comparison with the present graph, to detect 
   slight differences
* The width and height (in pixels) of the Time graph and the 
   Contour plot window are displayed on the Status bar when the 
   size of the window is modified
* The size (in pixels) of the Time graph or Contour plot can be set
   by the user before a bitmap is copied to the clipboard.


MLU 2.00: September 2009

* Time graphs only display curves for observed and pumped wells 
   by default
* Table type selection of time graphs and colors for drawdowns 
   and well-face fluxes
* Use of cursor for point inspection of observed and calculated 
   drawdowns and well-face fluxes
* Fast resetting of all drawing options
* Improved grid generator for up to 2.000.000 m wide FEM models 
   of up to 30.000 nodes per layer 
* Context sensitive Help screens.


MLU 1.60: January 2009

* Only non-negative skin factors can be entered
* Maximum number of observation wells is set to 50, while the
   maximum number observations per well is increased to 100
* The Stehfest parameter may be choosen within the range 6 - 16
* Optimization parameters are saved in MLU files
* All computations are performed with double precision accuracy.
  

MLU 1.20: October 2008

  Pumping Wells:
* Maximum number of pumping wells is 300.
* User selection of pumping wells and/or pumping periods 
   to be included/excluded from the time graphs and contour plot 
   computations and the optimization process.

  Observation wells:
* Maximum number of observation well is 300.

  Export:
* Saving of the model input data (not the computed heads) as a 
  Finite Element Model in a FEM format, ready for reading by MicroFEM.
  The number of nodes is limited to 50 000 per layer.
  The number of aquifers is limited to 20; 


MLU 1.10: September 2008

  Aquifer System:
* Zero-thickness resistence layers in stratified aquifers are allowed. 
  In such cases the vertical resistance (c-value) is computed as: 
  (thickness upper layer + thickness lower layer)/(2 * Kv).

  Pumping Wells:
* Numbering of pumping periods per pumping well. 
* Checking of the order of entered starting times per pumping well.

  Observation wells:
* Numbering of measurements per observation well.
* User selection of observation wells and/or individual measurements 
  to be included/excluded from the optimization process

  Export:
* Saving of the heads (or fluxes) that are computed to draw all 
  time-curves in a FTH-file format.


MLU 1.00: April 2008: 

* First release of MLU for Windows