1.5.1
	new analysis functions : noise, signal filter, auto-/crosscorrelation and capability analysis
	"add graph" dialog in graph dialog
	improved set-value dialog in spreadsheet
	support for panel plots and improved surface and pie plot
	much improved explorer dialog with drag and drop
	save and restore sheets position/size in project
	statistics on columns/rows and fitting in spreadsheets
	new axes tic style and fill between curves
	support for richtext in legend
	save settings and update open dialogs
	optional xml project format (will be used later as standard format)
	lot of bug fixes	
1.5.0
	more weightings+residuals for regression/nonlinear fit
	added wavelet and hankel transform and improved analysis functions
	improved surface and qwt 3d plot
	improved behaviour with non-linear scales and LaTeX label support
	import/export data from/to PostgreSQL, mySQL, etc. via KexiDB
	import Origin opj projects (Origin worksheets only)
	better scripting support
	many bug fixes
1.4.1
	nonlinear fit any user-defined function with up to 9 parameter
	configure default value for plot style and symbols
	clone graphs and delete/clone plots
	improved import/export settings with support for binary data
	more analysis functions : compress, peak find, periodical, seasonal
	regression/nonlinear fit of data with errorbars
	speed mode for large data sets and data mode for inspecting data points
	zoomin/zoomout, marker and improved axis grid
	mask data points in spreadsheet and plot	
1.4.0
	versatile spreadsheet with data import, editing, etc.
	new 3d plot with rotation and colormaps (using qwtplot3d library)
	double buffered plotting (no flicker)
	data set operations
	import/export of over 80 image formats (svg, fits,...) and
	better image handling
	direct export to ps, eps, pdf via ghostscript
	simple scripting using QSA

1.3.1
	native export to svg, eps and more graphic formats
	support for ternary and polar plots
	added (de)convolution and interpolation
	better zooming, errorbar plotting and annotate values
	more plot symbols and brush
	reading and writing of netcdf, cdf and audio (wav,au,snd,aiff,...) files
	improved graph list dialog
	new file info dialog

1.3.0
	multiple plots per worksheet
	handling of time and date format
	improved axes settings
	improved surface (density, contour) plots
	improved nonlinear fitting
	support for pie, GRASS and VTK plots
	improved documentation
	german handbook

1.2.3
	linear regression and nonlinear fit
	improved fourier transform using gsl or fftw
	integration, differences and histograms
	creating, editing and moving drawing objects with mouse
	KDE KPart for LabPot project files
	reading/writing of compressed data (gzip,bzip2)
	more bugfixes and improved german translation

1.2.2
	logarithmic scales of axes
	support of drawing objects
	support for gsl special functions and  distributions
	fourier transform via gsl
	export to pdf, fig, dxf, etc. via pstoedit
	export to >100 different image formats via ImageMagick
	
1.2.1
	much improved GUI
	better KDE integration
	richtext title and axes label
	improved 3d plotting
	new analysis functions
	better data reading
	configure and save user settings
	examples
					
1.2.0
	new improved internal plot structure
	parser support for functions with more parameters
	new surface plot with contour support and legend
	support for jpeg2000 and tiff
	user guide (KDE handbook)
	even more buxfixes
	      
1.1.1
 	matrix-data-reading
 	density plots from function and data
        parser completly rewritten
	colored and scaled printing
	export plot as graphics
	more flexible data reading
	improved axis tics label (format and position)
	more bugfixes