10.3.2:
	New applications wav2mit and mit2wav create WFDB-format records from
	files in the widely-used .wav audio format and vice versa.

	New application nguess estimates the locations of missing normal
	sinus heart beats in an annotation file.

	When running multiple WAVE processes started from a single command,
	it is now possible to update all of the signal windows by selecting
	a sample in the master signal window (using <control>+<middle mouse
	button>).

	WAVE now handles invalid entries in the signal list properly;  thanks
	to Joe Mietus for the bug report.

	Changed options in ann2rr to support more flexible output formatting.

	Fixed a WFDB library bug that caused annotation sorting to fail
	if a new header file had been written.  Thanks to Winton Baker for
	reporting this problem and for providing an example that illustrated
	the bug.

	Fixed a bug in mit2edf that caused a crash instead of printing help
	if no arguments were supplied on the command line;  thanks to Jesus
	Olivan for the bug report.

	Better input checking in edf2mit;  fixed bugs in handling of unusual
	signal lists.

	Fixed a bug in snip that caused a crash if -a was the last option
	on the command line;  thanks to Joe Mietus for the bug report.

	Fixed installation bugs in psd/hr* scripts and psd/Makefile.tpl.

	Corrected a documentation bug in WAVE's on-line help.

	Revised rpm.spec and rules (in Makefile.tpl) for creating RPMs.
	There are now separate wfdb, wfdb-devel, wfdb-app, wfdb-doc, and
	wfdb-wave RPMs.

10.3.1:
	Added a -W option to ann2rr to create 2-column output containing
	intervals in seconds and annotation mnemonics, and modified the
	interval calculations to avoid accumulated roundoff error.

	Fixed a bug that caused WAVE to crash when the main window was
	resized if the open record had 3 or more signals, and added two
	high-resolution time scales in modepan.c.

	Fixed a bug in edf2mit that caused crashes when using the -s option,
	and another bug in mit2edf that caused crashes when converting a
	record with a frame rate of less than 1 Hz.  Thanks to Jesus Olivan
	for reporting these problems and for providing test cases that were
	helpful in developing and testing the fixes.

	Wei Zong has contributed an arterial blood pressure pulse detector
	for continuous ABP signals, which has been added to the package
	(see wabp).

10.3.0:
	The WFDB Software Package has been ported to MacOS/X (Darwin),
	version 10.2 (the port should also work under 10.1 but this
	has not been tested and will not be supported).	

	It is now possible to generate a shared WFDB library (DLL)
	under MS-Windows using Cygwin/gcc.

	Fixed bugs in lib/signal.c that caused improper accounting of
	signal group numbers when reading from two or more records at
	the same time (as in 'nst'), a bug that caused a segfault in
	'nst', and a bug that referenced uninitialized memory in
	newheader() if nsig = 0.

	Added functions sample() and sample_valid() to the WFDB library
	(in lib/signal.c).  sample(s, t) returns the sample at time (sample
	number) t from signal s, handling all necessary buffering
	internally and allowing the caller to treat the signal file
	as a virtual array of randomly accessible samples.  sample_valid()
	can be invoked to check if the most recent value returned by
	sample() was valid (e.g., to see if the end of the input was
	reached).  For an example of the use of these functions, see
	app/wqrs.c .

	Use -p -p to obtain higher precision in 'rdsamp' output.

	New -w option for 'ann2rr' and 'rr2ann' for attaching annotation
	types to intervals.

	Fixed a subtle bug in 'bxb' that caused it to count matching
	annotations as mismatches in very rare circumstances when the heart
	rate exceeds 200 bpm.  The effect of this bug was only to cause
	a tiny fraction of correct detections to be counted as errors, and not
	to cause detector errors to be counted as correct.  Thanks to James
	Pardey for reporting the problem and for providing a test case that
	was useful for developing and testing the fix.  See the comments in
	'app/bxb.c' for details.

	The application formerly known as 'epic' has be renamed 'epicmp'
	(episode comparator), to avoid conflicts with a new but widely
	distributed IRC chat client named 'epic'.

	Conversion of floating-point values to integer samples has been
	modified to obtain better cross-platform consistency in psfd and
	wrsamp.

	Wei Zong's length-transform-based QRS detector, wqrs, has been
	added to the package.

	New 'mit2edf' application converts records to European Data Format.

	Numerous updates in the WFDB Applications Guide.

10.2.9:
	Fixed a bug in example 9 in the WFDB Programmer's Guide (introduced
	in version 10.2.0).

	Updated lib/wfdbdll.def and the 'Makefile.dos' files in several
	directories.  These have not been tested in recent years and may
	need further revisions;  feedback is welcome.

	Corrected persistent problems with generating PDF versions of the
	manuals for the desired page size, and added hyperlinks to the
	PDF version of the WFDB Programmer's Guide.

10.2.8:
	Fixed a bug in WAVE that occasionally caused a crash when starting
	up;  also repaired a broken link in WAVE's on-line help.

10.2.7:
	Added a workaround to wfdb_fclose() (in lib/wfdbio.c) so that
	closing stdin after using freopen doesn't trigger a core dump.

	If out-of-order annotations were written and automatic annotation
	sorting was suppressed, the warning produced by oannclose() (in
	lib/annot.c) once again includes the correct 'sortann' command
	needed to put the annotations into order.  (This feature was broken
        by a previous revision.)

	Added 'ahaconvert', a shell script (in convert) that can reformat
	all (or any subset) of the records on an AHA DB CD-ROM using a2m
	and ad2m.  'a2m' and 'ad2m' now do a better job of automatically
	recognizing their input file types, and 'ad2m' now converts
	long-format as well as short-format AHA .CMP (signal) files
	correctly.

	Numerous updates and corrections in the WFDB Applications Guide.
	
10.2.6:
	Added setifreq() and getifreq() to the WFDB library.  setifreq
	allows the caller to resample an input record at any convenient
	sampling frequency, using getvec() to perform xform's resampling
	algorithm transparently.  Thanks to Pat Hamilton for the inspiration!
	The complementary getifreq returns the current getvec frequency
	(either the native sampling frequency of the current record, or
	the frequency previously set using setifreq()).  Times expressed
	in sample intervals passed to or from other WFDB functions (getann,
	putann, timstr, mstimstr, strtim) are rescaled to match the intervals
	corresponding to the chosen frequency.

	'sqrs' and 'sqrs125' now use setifreq() to resample their inputs.

	Added 'wfdb-config', a tiny program (in app) that reports the WFDB
	library version and linking information (similar to libwww-config,
	gtk-config, etc.).

	The WFDB library now records the base time with millisecond precision
	(previous versions did so with one-second precision), and 'xform'
	provides starting times to the library function 'setbasetime' with
	millisecond precision.  Thanks to Allavatam Venugopal for providing
	examples that illustrated the need for these features.

	Fixed handling of absolute time strings in 'ann2rr', 'bxb', 'epic',
	'fir', 'ihr', 'mxm', 'pscgen', 'rdann', and 'rxr' (all in app).

	Fixed deskewing buffer initialization in getframe() (in lib/signal.c).
	broken by the 10.2.0 update, which introduced an infinite loop when
	reading a record that requires skew correction starting at sample 0.
	Thanks to Andrew Walsh for finding an example that triggered this bug.

	Fixed rounding errors in adumuv(), muvadu(), and physadu() (all in
	lib/signal.c).  Previous versions rounded negative values toward zero;
	to obtain consistent conversions, however, it is necessary to round
	all values down (e.g., from -1.5 to -2 rather than up to -1).

	Fixed a memory leak in wfdb_fclose() (in lib/wfdbio.h), and made
	additional minor changes for portability (in lib/calib.c, lib/signal.c,
	and lib/wfdblib.h).  Thanks to Ion Gaztaaga for bug reports, for his
	careful notes on compiling the WFDB library using Borland C++ Builder
	(see INSTALL for a summary), and for testing intermediate versions
	of the library.

	Fixed a bug in checkpkg/appcheck, which was correctly testing xform
	with NETFILES and reporting any errors, but was not counting errors
	in this test.

10.2.5:
	New output format options in 'ann2rr' and 'ihr'.

	FreeBSD support in 'configure', new conf/freebsd* (thanks to
	Giuseppe Pagnoni).

	Added support for annotation maps from wfdb/ecgmap.h to the Fortran
	wrappers (fortran/wfdbf.c) and fixed two typos there.

	Removed unneeded references to wfdb/wfdb.h from waverc/wave-remote.c
	and waverc/wavescript.c (thanks again to Giuseppe Pagnoni).

10.2.4:
	Bug fixes in 'pschart' and 'psfd' (vbuf was not properly initialized
	before its first use).

10.2.3:
	Portability fixes in 'configure', 'install.sh', 'wave/Makefile.tpl',
	'psd/hr*', 'doc/*.sh', 'lib/wfdblib.h', and 'checkpkg/*check'.

	Updated 'checkpkg/appcheck' to use WFDBANNSORT when testing 'sortann'.

	The full package is now much smaller because the figures for the
	WAVE User's Guide are now generated as needed from compressed ppm
	files.  Also, 'doc/texindex.c' and 'doc/texi2html' have been removed
	from the package (these are now more widely available than when they
	were originally included, and relatively few users need them).

	Added rules for creating 'dbu.hlp' (MS-Windows help file version of
	the WFDB Programmer's Guide) to doc/Makefile.tpl.  Updated rules for
        generating the info version of the Programmer's Guide.

	Special pipe and tape header files from 'data' are now installed
	by default.

	Added rules for creating WFDB source and binary RPMs to the top-level
	Makefile.tpl.

10.2.2:
	WAVE can now be used to view and edit annotations for records that
	have no signals.

	The WAVE User's Guide has been moved to the 'doc' directory, and
	the process of formatting it is now better integrated with that for
	the other WFDB guides.

	In 'ihr', the use of an uninitialized variable ('lasttime') caused
	some non-outlier data in the first few samples to be rejected
	incorrectly.  This has now been fixed.

10.2.1:
	Most users will no longer need to set the WFDB path explicitly, as a
	result of several minor changes in the default path and in the
	installer for the WFDB Software Package.

	The environment variable WFDBNOSORT was replaced by WFDBANNSORT, and
        the environment variable WFDBGVMODE was introduced (see 'Annotation
        Order' and 'Multi-Frequency Records', in the WFDB Programmer's Guide,
	for details).

10.2.0:
	The 10.2 series differs from all earlier releases in that the WFDB
	library no longer imposes any fixed limits on the numbers of annotators
	or signals that can be open simultaneously.  There is also no
	fixed limit on the number of samples per signal per frame.  The
	constants WFDB_MAXANN, WFDB_MAXSIG, and WFDB_MAXSPF, which determined
	these limits in previous versions of the library, are still defined in
	lib/wfdb.h for compatibility with older programs that use them, e.g.,
	to set array sizes.

	In this release, almost all of the WFDB applications, including WAVE,
	those in the 'app' and 'examples' directories, and convert/edf2mit,
	have been revised so that they can handle arbitrary numbers of signals
	and (where applicable) annotation files.  The exceptions are:

	  sample
	    limited by the number of channels provided by the ADC/DAC it uses
	  view, wview
	    use 'gtkwave' (http://www.physionet.org/physiotools/beta/gtkwave)

	Also please note the new 'checkpkg' directory, which contains a variety
	of tests to check the basic functionality of the WFDB library and many
	of the WFDB applications.  From the base directory, run the tests by:

		make check

	These tests will check the currently installed version of the WFDB
	software package.  If you use them to check an old version, there may
	be minor discrepancies because of changes in the output formats;  you
	should not encounter any discrepancies if you use these tests after
	installing this version of the WFDB software package.

	As always, your comments are welcome!

	George (george@mit.edu)
