pyEQL Changelog
===============

0.5.0 (2018-09-19)
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 - Implement the effective Pitzer model for improved activity calculations in multicomponent solutions
 - Add support for calculation of activity and osmotic coefficients on different scales
 - Add support for calculating % by weight to get_amount()
 - Added methods for calculating the osmolarity or osmolality of a Solution
 - Add the ability to filter list_concentrations() to show only cations or anions
 - Add two medical solutions - normal saline and Ringer's lacate - to the autogenerate method
 - Add shorthand abbreviations for 'seawater' and 'wastewater' in the autogenerate method
 - Enhance automatic test suite to compare results with experimental data based on relative error
 - Add test suites for the effective Pitzer model and a multicomponent salt solution
 - DEPRECATED get_mole_fraction. Use get_amount() instead
 - Fix bug causing get_activity_coefficient to fail if the solute concentration was zero

0.4.0 (2016-07-14)
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 - Add ability to calculate dielectric constant based on solution composition for salts
 - Add database entries for the viscosity 'B' parameter for 63 more inorganic ions
 - Add domestic wastewater and human urine to the autogenerate() method
 - Improve entry point for running automated tests (#16, thanks Hernan Grecco)
 - Significantly expand documentation of activity correction methods
 - Make output of get_osmotic_coefficient more verbose when Pitzer parameters are not found
 - Fix bug causing activity corrections for non 1:1 salts to be calculated incorrectly (#15)
 - Fix bug causing 'bad operand type' error when calculating osmotic pressure on some systems
 - Fix bug causing ValueError exceptions when a solute has zero concentration
 - Numerous fixes and corrections in the documentation

0.3.1 (2016-02-24)
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 - Fix packaging problems preventing installation from PyPi
 - Fix character encoding issue in Erying_viscosity database file
 
0.3.0 (2016-01-15)
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 - Add method to calculate the total concentration of an element in a solution
 - Add method to automatically generate certain solutions (like seawater)
 - Add method to calculate the hardness of a solution
 - Add method to calculate the alkalinity of a solution
 - Add method to calculate the charge balance of a solution
 - Add method to calculate the Bjerrum length
 - Add database entries for hydrated and ionic radii of 23 common ions
 - Add database entries for the 'B' parameter in the Jones-Dole viscosity equation for 20 common ions
 - Add test suites for solute property methods, hardness, osmotic coefficient, and Debye length
 - Improve logging system to work better when using pyEQL interactively
 - Improved README with graphics and rich formatting
 - Fix bug related to activity and osmotic coefficients for multivalent salts
 - Fix bug related to retrieval of water properties
 - Documentation enhancements and fixes
 
0.2.2 (2015-08-28)
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 - Fix bug in get_amount() causing no output when mass-based units were specified.

0.2.1 (2015-05-06)
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 - Add 93 entries to diffusion coefficient database
 - Add 93 entries to Pitzer partial molar volume parameters database
 - Add 130 entries to Pitzer activity parameters database
 - Change extension for database files from .csv to .tsv
 - Corrections and additions to the contributing documentation
 - Uploaded to the Python Package Index for easier installation
 - Add this changelog

0.2.0 (2015-03-26)
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 - First public release
