17-jan version 4.08 beta
=================
Features:
---------
The SETPROMPT command permits to change the Gifa prompt
Now macro are searched in a PATH, as in Unix, the SETPATH command and
   the $GIFAPATH variable permits to change the active path.
The Zoom box now displays the intensity of the data-set at the cursor point.
Two new commands : POINT_INPUT for adding a value in the point stack
                   SETPEAK for modifying a peak in the peak table
New macros :  pkadjust, point_cross
New variables : $PKNAME for the last read peak table

Changes:
--------
Absmax0 is now read from the file header in the READ command. This may
  interfere with the bug below, type the command ABSMAX 0 or click on the
  reset button to clear it.
exist() now works for arrays and dbm arrays
	(exist("array[]")) is true if array[x] exists with at least one entry
PUT DATA and GET DATA now copy all the spectral parameters
LIST has been rewritten in macro
SHOWPEAK and SHOWPEAKS now show in all available screens
LINEFITD has now a different syntax (I hope it won't disturb you !),
     now prompts for peak index to fix (much easier in macro (see pkadjust))
@(expression) is now possible

Corrected bugs:
---------------
Absmax0 was not computed correctly in the file header
File access was not possible for very asymmetric 2D and 3D
zoom window correctly displayed in the "catch spectrum" area
INTEG was wrong after a pkread
PKRESET was slightly wrong (grossly false on 3D)
POINT->PK was giving wrong intensities in 2D
dbm package was a memory hog!
FPRINT on a read_only file now returns an error message
PHASE was not correct in 2D with one axis with a size not a multiple of 2
PH was confused with scale whan displaying
REAL in 2D was giving a wrong prompt
HELP on HP was truncating to 80 chars
PUTHEADER can now be used with long entries (even with blanks)
    (was buggy when length>12)
No more strange display after a read with a wrong zoom window.


2-nov 1995 - version 4.07b
===========================
Due to unfortunate late changes, the 4.06b version had some bugs.
This version is here to correct them. (Halloween effect ?)
Corrected bugs:
---------------
Some macro (typically, ft_n+p, proc2d, proc3d, burg2d, in fact all macros
  that play with DIM) tended to be very (I mean VERY) slow.
HPHASE was buggy in some cases (hphase in F1 in 2D)
INTEG was buggy in 1D

27-oct 1995 - Version 4.06b
============================
Features:
---------
New Zoom control box, with new features :
  spectral coordinates
  pop-up for dimension 1D, 2D, 3D selection
  graphic area for simplified spectral display
Added a complete set of menus for 3D processing.
An automatic phasing utility : apsl
added control on the point stack : POINT_PUSH POINT_POP POINT_CLEAR
  used for the new POINT, MONOPOINT
  POINT has been rewritten in macro
  zoom and display control is now available during macros (MONOPOINT
  ALERT, etc...)
printf, fprintf, sprintf utilities
MINDATA and MAXDATA commands (for custom made symetrisations and projections)
Motif Resource is now used by Gifa. colors and fonts are customisable
New commands for simulating data-sets : SIMUN ADDNOISE
New command for amoebae : MODIFY_AMOEBA.

Changes:
--------
All calls to the old graphic layer have been removed :
  PH, CHECK3d, etc.. are now Motif.
  all the functions of the zoom control box are available during macro
  execution (see point, rowint, pp, etc..)
  many macros have been modified accordingly
ZM and CHECK3D have slightly modified syntax
Slightly better user messages (for F1, F2, F3 dialogs)
Changed POINT and MONOPOINT see above
MODULE has been changed to MODULUS
new contexts : $CONFIG_GRAPH
Modified the HTML manual
INTEG has been internally rewritten, and a paramter has been added.
some output format have been changed (PEAK, INTEG, REDFIELD)
SIMUNOE is now obsolete, try the SimSpect2D macro, based on SIMUN

Corrected bugs:
---------------
plot3D and display of cube in 3D now work, as well as Zoom mode in 3D
FREEZE now works ! available also in the wm menu. FREEZEd windows are closed
  from the window manager.
SHOWLINE was buggy in 1D mode
%% syntax now works, was slightly buggy
file dialog box was loosing memory of the current directory
getc 3d->2d was copying wrong spectral parameters
comments at the end of a FOR line was buggy
PUT PLANE F3 was buggy (thank you Kalle ;-)
cache_mad.c was buggy (could cause core dump in certain cases)

22-june 1995 - Version 4.05b
============================
Features:
---------
SHOWC : new command to display joined data-set without loading them into memory
super1d/super2d macros which uses the SHOWC command to permit superposition of
   the display of several data-sets on screen
Line-fitter (LINEFIT; LINEFITD; SHOW LINEFIT; GET LINEFIT; show_fit)
   now works for 2D (Lorentzian and Gaussian)
store zoom/back to stored zoom facility in display menu
new $CCOLOR context
New UNIT : seconds
new entry mode for coordinates : if xxx is a number
	xxx : in index; xxxp in ppm; xxxh in hertz; xxxs in seconds
REVERSE now works in 2D and 3D, reverses also in complex mode
    (depending on itype) : i.e. reverse the complex vector.
Source is now available to licenced users.
new command UNREF

Changes:
--------
the macro calib has been cleaned-up
expanded buffers for LINEFIT
clean-up of the display menu
add Plotpeaks and residue in Peaks menu
added a Correct1st point button in the Apodisation menu
correction in ux2cach utility, now handles DMX data-sets
clear mode now works on CDISP2D window
ROW COL and VERT was prompting with last point clicked in POINT,
	not true any more (was buggy)
better error messages

Corrected bugs:
---------------
ux2cach utility was very buggy ! spectral parameters were ALL wrong.
LINEFIT seems to be corrected on SGI
PH, SHOWFIT, BCORR 2 used to crash is sizes > max protected 1D
bug in initialisation of the ZM box parameters
READ used not to load correctly spectral parameters
Absmax0 is now correct in data-sets
corrected bug in variable allocation, that made long FORMBOXes to miss some variables
MULTDATA was buggy in 2D
SHOWTEXT SHOWLINE PLOTTEXTS PLOTLINES were buggy in 1D
JOIN could be used only once on read-only files
dim 2 in 2D does not refresh anymore
slightly better error handling on READH
better NDISP
JMULT was wrong by a factor of 4
command RESET removed
tail() was letting a leading blank
wrong format in PLOTAXIS have been corrected
MachTen distribution was VERY slow -> slightly better now.

may-1995 - Version 4.04b (not released)
========================================

17-mars 1995 - Version 4.03b
============================
Features:
---------
ported to SUN
The rshift and lshift macros
support of macro documentation by Mosaic

Changes:
--------
in NEWFILEC, the parameter FREQ has been moved to the end of the list.
BCORR 3 can now work on larger data-sets
plot deals more gracefully with errors
added feaures in easy2d, notably the "load macro" action

Corrected bugs:
---------------
the bug in the color allocation that was showing on INDY is fixed
DBM set of commands is normally debugged now on SGI and AIX machines
messages from commands are now cleaner.
NEWFILEC is debugged now, and the proc2d proc3 macros usable.
help on macro does not hampers any more the use of the macro (!)
menus now closes when the menu bar is closed
zoom out in the ZM box was changing the shape of the zoom window
TM was bugged on complexe (itype 1) data
(4.5e12+1) does not give an error any more
you can now change the color of contours in ccolor 0 mode

13-mars-1995 - Version 4.02b (not released)
========================================

16-feb-1995 - Version 4.01b (first beta)
========================================
Features:
--------
Complete rewrite of the cache system (join, getc, putc, read, write, ...)
	=> many new features : (GET/PUTHEADER, etc..)
	=> executable are now much leaner (gifa_med version is down from 56Meg to 23Meg)
The source code for the new cache system is available in gifa/util/ux2cache
test suit for the cache and the peak functions

Changes:
--------
with the new cache the following commands have changed :
putc - getc and the order of the parameters (now like in zoom)
newfilec - does not require a join
File created with the new cache cannot be accessed with the old one.
	you can tell by making a more of the file and looking to 
	the Cacheversion parameter (old is 1, new is 2)
changed command GO and CONT to MAXENT and MAXENTCONT (cosmetic)
changed the installation Makefile
changes in util/get/getrmn (rename into getnmr) (cosmetic)

Corrected bugs:
---------------
Many bugs associated to the previous cache system have been removed,
	probably many new bugs yet to be discovered !
when working, the mouse is a watch on all windows
ZM and shift buttons when 2 windows on screen
cdisp2d and a size of 1 does not crash any more.
the line fitter now works on SGI machine (was a bug in the compiler!)
correction in the macro ft_sh (was rft instead of revf)

Not released - Version 4.09a
============================
Features:
--------
licence protection installed
New commands MULTDATA (mult current with DATA) INVF(invert one every two point)
USWA and SWA now work in 2D
a test of Linear Prediction in the test suit
formboxes now can be larger than the screen, adapted with scrol-bars.

Changes:
--------
The command BIG have been removed,
CDISP2D now creates a window of 15cmx15cm, independent of CX,CY
changes in the several menus
1st point correction in easy2d

Corrected bugs:
---------------
rtselect was bugged when roots were selected in disorder
rt->pk sets the line type in pklist
chsize does not accept anymore an odd size if complex mode


10-january-1995 Version 4.08a
=============================
Features:
--------
New menus and macros:
	Linear prediction; Hilbert transform; burg2d and 3d; easy2d; easyplot
	read(f); write(f);
Support of on-line Hypertext documentation (with Mosaic)
now the $_ syntax is available at top-level context

Corrected bugs:
---------------
bugs corrected in mouse zooming;
	and extended functionnalities (now the 4 litle arrows work)
bug corrected in language (structures idented with tab)
bug corrected in RTSELECT
extended tests


Not released - Version 4.07a
============================
Changes:
--------
syntax changed for FORMBOX and DIALOGBOX
changed CLOSEBOX in CLOSEBUTTON

Corrected bugs:
---------------
bug corrected on SGI -> now works on silicon
corrected readm and writem
changed the installation Makefile


1-dec-1994 Version 4.06a
========================
first public release of the alpha version of GIFA
Many, Many changes from version 3.x - see documentation