Praat

Windows: better dotted lines.
TextGrid window: again better automatic alignment.

Scripting: "hashes": variables can now be indexed with strings rather than only with numbers.
TextGrid window: fewer out-of-order messages in automatic alignment.

TextGrid window: removed a bug whereby Praat could do automatic alignment only on sounds sampled at 44.1 kHz.
TextGrid window: improved the location of the final boundary in automatic alignment.
Table window: added a preference for the interpretation of graphical style symbols (%#^_@).

Linux: corrected a bug by which the Tab short-cut for playing a sound would not work if the NumLock key was on.
Mac 64-bit: corrected a bug that could cause Praat to crash if the Tab key was pressed in a dialog window.

Windows: corrected a bug that could cause Praat to crash when closing a script window.
Mac 64-bit: progress bars with movies.

Windows 32-bit: corrected a bug that could cause Praat to crash when closing the Sound window after popping up dialog boxes.
Mac 64-bit: better demoShow().
Mac 64-bit: working Matrix movies and articulatory synthesizer movies.

6.0.07 (30 November 2015)

Mac 64-bit: repaired dragging selections (which got broken in the El Capitan fix in 6.0.06).

6.0.06 (29 November 2015)

Mac 64-bit: correct early Info window updates and demoShow() in El Capitan.
Manual updates.
Corrected some small memory leaks.

A manual page that describes TextGrid file formats.
Corrected a bug that prevented some KlattGrid tiers from being edited.
32-bit Linux: correct use of PulseAudio (note: 6.0.04 on Debian already had this correct).

6.0.03 (31 October 2015)

Corrected a bug that caused Praat to crash when the Soundrecorder window was closed.
Scripting: when calling Praat from the command line, added the --run option to force script execution.

6.0.02 (30 October 2015)

Corrected the redrawing of analyses in the Sound window after a change in the sound.

6.0.01 (29 October 2015)

Windows: fixed a bug that caused Praat to crash at start-up in some Windows versions.

Linux: use PulseAudio as the server for playing sound.
Windows: removed Praatcon.exe, because Praat.exe can now be used from the command line.
Praat can now open files from the command line on all platforms.
The API change that requires raising the major Praat version to 6: no longer any need for Praatcon.exe, because Praat itself can now run a script from the command line on all platforms.
See Scripting 6.9. Calling from the command line for all command line options.
SpeechSynthesizer: corrected a potentially crashing bug.
Mac Retina graphics: made function drawing (e.g. in the TextGrid window) twice as fast.
LongSound: corrected playing of more than 2 channels.

Sound files: added support for MP3 files with ID3 version 2 headers.
Table: Line graph where: removed a bug that caused nothing to be drawn if the number of columns was larger than the number of rows and the column index was larger than the number of rows.
Mac: corrected horizontal spacing in graphical text on El Capitán.
Mac: corrected a bug that would cause Praat to crash if a PNG file could not be saved (from a script).
Windows: enabled PNG saving from Praatcon.

Corrected the graphical representation of numbers with exponents (wrong since 5.4.10).
Windows: prevented flashing console window in runScript().

LongSound: corrected saving of 8-bit files as 16-bit.

Regular expressions: if the pattern is illegal, you'll now get an error message instead of an empty string.
LongSound: removed a bug introduced in 1999 that could play long stereo sounds much too fast if they had unusual sampling frequencies. This bug has become more noticeable on the Mac since January 2015.
Guard better against sound files that contain 0 samples.
Scripting: faster look-up of variables.

Scripting: removed a bug that could cause Praat to crash when calling `writeFile()` with an empty text.

Mac 64-bit: removed a bug by which graphical text passed over the right edge in TextGrid intervals.
Mac 64-bit: removed a bug that allowed the general "Zoom" and "Close" commands to be accessible from a script.

5.4.15 (1 August 2015)

Introduced several command line options that make it easier to call Praat from a web server.
64-bit Mac: removed a bug introduced in 5.4.11 that caused incorrect spacing of vertical text in picture files.

5.4.14 (24 July 2015)

Windows and 32-bit Mac: removed a bug introduced in 5.4.12 that could cause weird behavior (even crashing) when pressing the Tab key in the script window or in the manual.

5.4.13 (22 July 2015)

The Demo window can now save itself to a PNG or PDF file.
Windows: removed a bug introduced in 5.4.10 whereby Praatcon would write garbled text to the console.

5.4.12 (10 July 2015)

Windows: removed a bug introduced in 5.4.10 whereby SpeechSynthesizer would only pronounce the first letter of the text.

5.4.11 (8 July 2015)

Windows: removed a bug introduced in 5.4.10 whereby the file selection window could try to open a file with a garbled name.
Removed a bug whereby the PointProcess window would crash when showing a perfectly silent sound.

Removed a bug introduced in version 4.5.09 (January 2007) that caused incorrect upsampling of stereo sounds when the upsampling factor was exactly 2. This bug has caused incorrect playing of stereo sounds with a sampling frequency of 22050 Hz on the Mac since January 2015.
Removed a bug introduced in 2011 that could cause Praat to crash when you scrolled the LongSound window.
TextGrid: Count intervals where... and Count points where....

?? Linux: the tab key can be used to play sounds on more computers.
• Windows: TextGrid files with non-BMP characters are now read correctly.
• Windows: files with names that contain non-BMP characters are now saved correctly.
• Updated manual.

5.4.08 (24 March 2015)

• Sound window: removed a bug that caused a crash in "Editor info".

5.4.07 (22 March 2015)

• TextGrid window: Add interval now does the same thing as Add boundary if a time strectch is selected.
• Linux: better redrawing in TextGrid window.

5.4.06 (21 February 2015)

• Windows: repaired a bug that could cause Praat to crash if a metafile resolution was 200 dpi.

5.4.05 (13 February 2015)

• Better support for big integer numbers on Windows XP.
• Sound window: guarded against empty view ranges for the intensity curve.

€¢ Windows audio playback: if the sound has more channels than the audio hardware, distribute them evenly.

€¢ TextGrid reading: Praat now corrects some incomplete TextGrid files created by others.

• Better support for text files larger than 2 GB.

€¢ MelSpectrogram, BarkSpectrogram.

• Linux: removed a bug that could cause too many flashes when scrolling a Sound window.
• Mac: repaired a bug that could cause a crash in the VowelEditor window.

5.3.85 (19 September 2014)

Mac audio: circumvented a bug in PortAudio by which playback of sounds with sampling frequencies below 44100 Hz could be distorted on some USB headsets.

5.3.84 (26 August 2014)

Manipulation: repaired a bug that could cause Praat to crash when playing a manipulation of a Sound created by the SpeechSynthesizer.

5.3.83 (16 August 2014)

TextGrid window: repaired a bug with automatic alignment that could cause an analysis tier to go out of order.
Linux audio: created a second workaround that reduces even more the chances of a freeze that is due to a potential deadlock in the collaboration between Alsa and PulseAudio that can occur when the playback of a sound is cancelled.
Smoother communication with Phon.
Windows: repaired a memory leak when saving PNG files.

5.3.82 (26 July 2014)

Audio playback: if the sound has more channels than the audio hardware, distribute them evenly.
Pause forms: more consistent appearance of the Revert button.
Scripting: pauseScript ( ) function.

EEG: can work with status numbers instead of only with status bits.
Windows: repaired a bug that could cause Praat to crash if there was a 96-dpi printer.

5.3.80 (29 June 2014)

Praat preferences: choice between Chinese and Japanese style for Han characters.

5.3.79 (21 June 2014)

Can now play sounds over more than two channels.
Asynchronous play in scripts (see Demo window).
EEG: blue-to-red colour scale for scalp distributions.

5.3.78 (12 June 2014)

Multithreading can now speed up pitch analysis by a factor of 4 or so, depending on the number of cores in your processor.
Linux: can now open and save Photo objects (from PNG files) and use Insert picture from file....
Open WAV files that are in the "extensible" format (previously "unsupported format -2").
Windows: support for dropping more than one file on the Praat icon.
Scripting: can now use the editor command with an object's ID instead of only with its name.
Windows: removed a bug that sometimes disallowed saving more than one JPEG file.
Linux audio: created a workaround that reduces the chances of a freeze that is due to a potential deadlock in the collaboration between Alsa and PulseAudio that can occur when the playback of a sound is cancelled.

EEG: more facilities for EDF+ files.

EEG: more interpretation of triggers in EDF+ files.

5.3.73 (21 April 2014)

EEG: understand more EGI/NetStation files.

5.3.72 (17 April 2014)

Windows: repaired a bug that caused two black edges in PNG files.
Windows: repaired a bug that could cause Praat to crash if a metafile resolution was 360 dpi.
Linux: repaired a bug that caused Praat to crash when cutting or pasting a sound in the Sound window.

Windows: brought more unity in the style of Chinese characters.

Added some query commands for DurationTier objects.
Repaired a bug that caused Praat not to run as a console app.

Picture window: can save to 300-dpi and 600-dpi PNG files.
Graphics: sub-pixel precision line drawing on Mac and Linux.
Repaired a bug that could show spurious buttons in the Objects window if a plug-in created objects.

Mac: corrected a bug introduced in 5.3.19 that could cause crashes when drawing a spectrogram.
Mac and Linux: Create Strings as file list... handles broken symbolic links more leniently.

Corrected a bug that would create strange PNG files if the selection did not touch the upper left corner of the Picture window.
Mac: can save the Picture window to PNG file.
EEG: understand trigger letters in BDF/EDF files.

Windows and Linux: can save the Picture window to PNG file.
Windows: opening, modifying and saving PNG, TIFF or JPEG files (the Photo object, as on the Mac).

Scripting language: removed some bugs from runScript.
Linux: can save the Picture window to PDF file.

Scripting language: writeInfo, procedure, exitScript, runScript: all with colons.
64-bit Mac graphics: better highlighting and unhighlighting of selection.
64-bit Mac graphics: full screen.

Scripting language: easier menu command invocation using the colon ":".
64-bit Mac graphics: better handling of any absence of Doulos SIL or Charis SIL.
Windows scripting: can now use "~" in file names to refer to home directory, as on Mac and Linux.

5.3.62 (2 January 2014)

64-bit Mac: removed a bug introduced in 5.3.61 that could cause text containing "ff" to become invisible.

5.3.61 (1 January 2014)

EEG: understand status registers that contain text.
KlattGrid: removed a bug introduced in May 2009 that could make Praat crash after editing an oral formant grid.