-- 
-- NEWS
-- 
-- Copyright (C) 2003, 2004, 2005 Stefan Jahn <stefan@lkcc.org>
-- 
-- This is free software; you can redistribute it and/or modify
-- it under the terms of the GNU General Public License as published by
-- the Free Software Foundation; either version 2, or (at your option)
-- any later version.
-- 
-- This software is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-- GNU General Public License for more details.
-- 
-- You should have received a copy of the GNU General Public License
-- along with this package; see the file COPYING.  If not, write to
-- the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-- Boston, MA 02111-1307, USA.  
--

This file lists user visible changes that were made between releases.  For
more verbose descriptions of these and internal changes see the ChangeLog
files.

Version 0.0.5
-------------

 * stability factors available in equation solver
 * implementation of microstrip t-junction
 * additional AC noise analysis
 * speed and memory optimizations in S-parameter analysis
 * implementation of coplanar lines
 * breakdown current/voltage in diode model available
 * list and constant sweeps available
 * added convergence helpers for non-linear DC and transient analysis
 * allowing vector indices with multiply dependencies
 * new matrix operations, e.g. det(), conj(), transpose() and inverse()
 * reduced memory consumption during netlist checking and instantiating
 * new Qucs-Converter command line tool
 * two new components: amplifier and operational amplifier
 * added microstrip via hole implementation
 * node-set functionality for DC and transient analysis

Version 0.0.4
-------------

 * ideal AC, DC and S-parameter models for microstrip t-junctions and
   cross-junctions
 * implementation of transient analysis for non-linear devices
 * support for current and voltage pulse sources (single and rectangular)
 * linear transient analysis for RCL networks available
 * AC analysis including all available devices

Version 0.0.3
-------------

 * increased speed of S-parameter simulation
 * implementation of parallel coupled microstrip lines
 * new microstrip components: gap, open, corner, mitered bend and step
 * simple P- and N-type MOSFET implementation
 * new S-parameter file (currently only touchstone) component
 * subcircuit definitions are now possible
 * npn- and pnp-type BJT implementation (Gummel-Poon model)
 * additional noise analysis with s-parameters
 * constants like 'pi' can be used in equations without defining them
 * much more documentation
 * microstrip models differentiate between quasi-static and dispersion
 * equation results can be selected for dataset export
 * DC simulation can output operating points of nonlinear devices
 * DC model for phase shifter implemented
 * logarithmic sweeps possible
 * N- and P-channel JFET implementation (Shichman and Hodges model)
 * resistors with R=0 possible in DC analysis

Version 0.0.2
-------------

 * partly documented the know-how implemented in the simulator
 * DC dependent s-parameter analysis of diode possible
 * Qucs available under MacOS 10.3
 * implemented equation solver
 * multi-dimensional parameter sweeps
 * DC simulation for passive elements and controlled sources
 * implemented s-parameters of DC and AC components
 * support for arbitrary port impedances

Version 0.0.1
-------------

 * first available version
