• Thanks to Michael Schmid, added the Plot.setOptions() macro function. See Help>Examples>>Plots>Plot Results for an example.
• Thanks to Michael Ellis, added the ImagePlus.setProp(key,string) and ImagePlus.getProp(key) methods (example).
• Thanks to Michael Schmid, added the Plot.getCurrentFont(), Plot.getDefaultFont() and Tools.getNumberFromList() methods.
• Thanks to Herbie Gluender, added the GenericDialog.getLabel() and FHT.getRawPowerSpectrum() methods.
• Thanks to Kenneth Sloan, added the ImageProcessor.getForegroundValue() method.
• Thanks to Curtis Rueden, made the GenericDialog.getParentFrame() method private again.
• Thanks to Hidenao Yamada, fixed a bug that caused the getDirectory() and getFileName() methods of the FileInfoVirtualStack class to always return null.
• Thanks to Norbert Vischer, fixed a bug that caused the File>Import>Image Sequence command to not ignore subdirectories.
• Thanks to Michael Cammer, fixed a 1.52v regression that caused recording to not work correctly when Preview was checked in a filter dialog.
• Fixed a 1.52o regression that caused the Help>Examples>JavaScript>FFT Filter script to display an error message.

• Thanks to Norbert Vischer, macro error messages include the call stack. (example).
• Added a "Set default directory" code choice to the Edit>Options>Startup dialog.
• Thanks to Laurent Thomas, the RoiManager class is now iterable.
• The run("Viridis") macro function now works on Fiji (example).
• Thanks to Fred Damen, Java compiler error messages use the default editor font.
• Thanks to Fred Damen and Michael Schmid, added the Math.erf(x) macro function.
• Added the Overlay.useNamesAsLabels(boolean) macro function (example).
• Thanks to Michael Schmid, added the Fit.getEquation(index,name,formula,macroCode) macro function (example).
• Thanks to 'Odinsbane', added the ByteProcessor.skeletonize(foreground) method, where 'foreground' is either 0 or 255.
• Thanks to Laurent Thomas, added the ResultsTable.getResultsTable(title) method.
• Thanks to 'Max1', fixed a bug that caused the Edit>Selection>Scale command to not maintain the selection name, group, fill color, point type and point size.
• Thanks to 'Odinsbane', fixed a bug that caused the ByteProcessor.skeletonize() method to not work correctly with objects touching the image edge.
• Thanks to Stefan Helfrich and Olivier Burri, fixed a bug that caused the position of ROIs added to the ROI Manager using RoiManager.setRoi() to sometimes change.
• Thanks to Michael Schmid, fixed a bug that sometimes caused GenericDialogs to throw an exception.
• Thanks to Jeremy Adler, fixed a bug where changing the LUT resets the display range.
• Thanks to 'Sh_Ty', fixed a bug the caused the Analyze>Tools>Calibration Bar command to throw an exception in headless mode.
• Thanks to Michael Schmid, fixed a bug that caused plots with custom symbols to use the wrong color or generate an error.
• Thanks to Nicolas De Francesco, fixed a 1.52u regression that caused incorrect straight line length measurements with spatially calibrated images.
• Thanks to Peter Haub, fixed a 1.52u regression that caused the cursor position to not be aligned with the drawing position when creating a polygon ROI.
• Thanks to 'Professor_OAT', fixed a 1.52s regresson that caused the deleteRows() macro function to throw an exception when deleting rows in a non-numeric table.

• ROI enhancements, thanks to Michael Schmid:
  • Line and point selections have integer coordinates at pixel centers when displayed at high magnification. Area selections have integer coordinates at the top-left corner of pixels.
  • All interactively created ROIs, except rectangles and ovals, are created with subpixel resolution when the magnification is above 150%.
  • Removed the "Sub-pixel resolution" option from the Edit>Options>Plots dialog.
  • The Line to Area command is faster and more accurate
  • The Straighten command is more accurate.
  • The Image>Info command displays more information about ROIs.
  • Long-click to select ROIs from overlays now also works with lines.
  • The Measure command uses Line to Area instead of Straighten to get statistics from segmented and freehand lines with a width geater than one.
  • Fixed a bug that could (rarely) cause an exception during "wipe back" when drawing a polygon or polyline. In "wipe back" mode, the mouse behaves like an eraser when moved backwards with alt key down.
• Thanks to Nicolas De Francesco, added the Edit>Selection>Fit Rectangle command.
• Thanks to 'Dcolam' and Jan Eglinger, the Edit>Selection>Enlarge command no longer has a 255 pixel limit.
• Thanks to Peter Bankhead, the default TIFF reader uses the HandleExtraFileTypes plugin when it is unable to open a file. As an example, .svs files dragged and dropped on the "ImageJ" window are now opened by the Bio-Formats plugin.
• Added the Help>Examples>JavaScript>Overlay Text example.
• Thanks to Laurent Thomas, added a "Install Keypad Shortcuts" command to the ROI Menu tool. Add
  call("ij.plugin.MacroInstaller.installFromJar", "/macros/RoiMenuTool.txt+");
  to the Edit>Options>Startup dialog to have the shortcuts automatically installed on startup.
• Thanks to Laurent Thomas, the commands in the ROI Menu tool and the "Group" setting in the ROI Manager's Properties dialog are recordable.
• Added the Math.abs(n), Math.acos(n), Math.asin(n), Math.atan(n), Math.atan2(n1,n2), Math.ceil(n), Math.cos(n), Math.exp(n), Math.floor(n), Math.log(n), Math.log10(n), Math.min(n1,n2), Math.max(n1,n2), Math.pow(n1,n2), Math.round(n), Math.sin(n), Math.sqr(n), Math.sqrt(n) and Math.tan(n) macro functions.
• Added the RoiManager.setGroup(group) and RoiManager.selectGroup(group) macro functions.
• Thanks to Ken Gilbert, added the getValue("image.size") macro function.
• Thanks to Laurent Thomas, added the setOption("WaitForCompletion",false) macro function, which causes the next exec() call to return an empty string and not wait for the command being executed to finish.
• Thanks to Nortbert Vischer, added the Array.sort(array1,array2,array3...) macro function (example).
• Thanks to Volker Backer, added the ImagePlus.resize() method, which is recorded by the Image>Scale and Image>Adjust>Size commands.
• Thanks to Fred Damen, added the Plot.setWindowSize() method.
• Thanks to Lewis Muir, fixed a bug the caused the Pixel Inspection Tool's red selection box to be included with the image when saving in GIF, JPEG or PNG format.
• Thanks to 'cooketho', fixed a bug that caused the Edit>Copy to System command to sometimes not work as expected with composite images.
• Thanks to Fred Damen, fixed bugs that caused the TextRoi.setJustification() and TextRoi.drawPixels() methods to not work as expected.
• Thanks to Nicolas De Francesco, fixed a bug that caused empty tables to not be opened correctly.
• Fixed a bug that caused the Color Picker to not work correctly if the GUI scale was greater than one.
• Thanks to Michael Schmid, fixed a bug that could cause a thread deadlock in plugins using the ImageListener interface.
• Thanks to Michael Schmid, fixed a bug that caused the "List coordinates" option in the Edit>Selection>Properties dialog to ignore the "Origin" setting in the Image>Properties dialog.
• Thanks to 'sebi06', fixed a 1.52p regression that caused the particle analyzer to thow an exception in headless mode.

• Thanks to Laurent Thomas, added a "Group" field to the Edit>Selection>Properties dialog and an "ROI Menu" tool to the toolbar's >> menu.
• Thanks to Norbert Vischer, added support for superscripts and subscripts in plot axis labels (example).
• Thanks to Norbert Vischer, added a "Separate Image" option to the "Location:" menu of the Analyze>Tools>Calibration Bar dialog.
• Selection handles are larger.
• Added a "Bolder selections" ("Roi.setDefaultStrokeWidth(2);") code choice to the Edit>Options>Startup dialog.
• Thanks to Mark Rivers, the Help>Examples>JavaScript>TeraByte VirtualStack example now generates test patterns and supports multiple image types.
• Thanks to Laurent Thomas, added the Roi.getDefaultGroup, Roi.setDefaultGroup(group), Roi.getGroup, Roi.setGroup(group), Roi.getDefaultStrokeWidth and Roi.setDefaultStrokeWidth() macro functions, and the corresponding Roi class methods.
• Added the following macro language string functions, where 's' is a string variable:
  s.charAt(i), s.contains(s2), s.endsWith(s2), s.indexOf(s2), s.lastIndexOf(s2), s.length, s.matches(s2), s.replace(s1,s2), s.startsWith(s2), s.substring(i1,i2), s.substring(i), s.toLowerCase, s.toUpperCase and s.trim.
• Thanks to Stephen Royle, fixed a bug on macOS that caused the command-h keyboard shortcut (ImageJ>Hide ImageJ) to not work.
• Thanks to Mark Rivers, fixed a bug that caused the cursor location and pixel value to not be displayed in the status bar for animating stacks.
• Thanks to Jeff Spector and Michael Schmid, fixed a bug that caused the Edit>Selection>Line to Area command to not work as expected.
• Thanks to Norbert Vischer, fixed a bug that caused a misleading error message to be displayed when using the saveAs(format,path) macro function to save in "jpg", "png" or "gif" format and the file path was incorrect.
• Thanks to Michael Schmid, fixed a bug that caused macro recording to not work correctly if "Non-blocking filter dialogs" was enabled in the Edit>Options>Misc dialog.
• Thanks to Michael Kaul, fixed a bug that caused the GenericDialog.addSlider() method to not use enough digits to the right of the decimal point if the value of the 'stepSize' argument was very small.
• Thanks to Michael Schmid, fixed several live profile plot and LineWidthAdjuster bugs.
• Thanks to Norbert Vischer, fixed a bug that caused the Image>Overay>Flatten command to throw an exception when flattening hyperstacks.
• Thanks to Michael Schmid, fixed a bug that caused dialogs with only buttons to put the focus on the first button, which is not the "OK" button on MacOS and Linux.
• Thanks to John Fozard and 'mountain_man', fixed a bug that caused angle measurements of lines a few pixels in length to be incorrect.
• Thanks to 'SarenT', fixed a bug that caused the ImagePlus.getShortTitle() method to truncate file names containing spaces.
• Thanks to Norbert Vischer, fixed a bug that caused a "Has Calibration Bar" error when attempting to adjust brightness and contrast after clicking on "Cancel" in the Analyze>Tools>Calibration Bar dialog.
• Thanks to Fernando Garcia-Polite, fixed a 1.52q regression that caused the run("Point Tool...",options) macro function to no longer work.
• Thanks to Michael Schmid, fixed a 1.52q regression that caused duplicate recordinging of non-blocking dialogs.
• Thanks to Dorai Iyer, fixed a 1.52s regression that caused characters entered using the text tool to sometimes be repeated.
• Thanks to Rodrigo Goncalves and Curtis Rueden, fixed a 1.52q regression that caused the "Movie (FFMPEG)" plugin to throw a NullPointerException.

• Thanks to 'LPUoO', added the Plugins>Utilities>Commands command, which opens a list of commonly and recently used commands.
• By default, image windows now open just below the "ImageJ" window.
• Thanks to Norbert Vischer, adding an exclamation mark to showStatus() messages avoids status bar flicker (example).
• Thanks to Michael Schmid, the Process>Filters>Convolve dialog displays feedback on the kernel as it is modified.
• Added the Macros>Set as Repeat Command command to the macro editor. After running this command, the selected macro code will run each time you press 'r', the shortcut for the Process>Repeat Command command.
• Thanks to Jerome Mutterer, added a "Splash Screen" code choice to the Edit>Options>Startup dialog.
• Changed the shortcut for Process>Repeat Command to 'r' and the shortcut for File>Revert to shift-r.
• Added a "Reuse 'FFT of...' window" option to the Process>FFT>FFT Options dialog.
• Thanks to Peter Haub, chroma subsampling is disabled when saving in JPEG format if the Quality setting (Edit>Options>Input/Output) is 90 or higher, resulting in higher quality images but larger file sizes.
• Thanks to Karen Collins, improved the FITS Writer.
• Added the Help>Examples>JavaScript>JPEG Quality Plot example.
• Removed the obsolete "Draw grid lines" option from the Edit>Options>Plot dialog.
• Thanks to Michael Schmid, the ImagePlus.updateAndDraw() method adds a scroll bar to the image window if the stack size has changed to greater than one.
• Thanks to Stein Rorvik, added the File.getDefaultDir, File.setDefaultDir(path), String.trim(string) and String.join(array) macro functions.
• Thanks to Peter Haub, added the JpegWriter.disableChromaSubsampling() method (example script).
• Added the ImageProcessor.setFontSize() and Plot.setFontSize() methods.
• Thanks to 'kefe' and Herbie, fixed a bug that caused the Stack to Images command to use slice labels as image titles even when they contained "/", "\" or ":" characters.
• Thanks to 'sudgy' and Jan Eglinger, fixed a bug the caused iteration over the points contained in an ROI to throw an exception for rectangular ROIs.
• Thanks to Norbert Vischer, fixed a bug that caused the options dialogs for the Rounded Rectangle, Multi-point and Arrow tools to generate "Duplicate keyword" errors when the Recorder was running.
• Thanks to Peter Haub, fixed a bug that caused the Image Calculator to not work as expected with RGB images when using the "Difference" operator and the "32-bit (float) result" option was enabled.
• Fixed a bug that caused the "Font size" setting in the Edit>Options>Plots dialog to be ignored.
• Thanks to Stein Rorvik, fixed a bug that caused the run("Calibration Bar...",options) macro function to ignore calls to setOption("AntialiasedText",boolean).
• Thanks go Sethur, worked around a Windows 10 and OpenJDK bug that caused the "thumb" on scrollbars to be hard to see.
• Thanks to Stein Rorvik, fixed a bug that caused the Analyze>Set Scale command to not be correctly recorded.
• Thanks to Sethur, fixed a bug that caused the Image>Stacks>Tools>Substack Maker command to not carry over the calibration of hyperstacks.
• Thanks to Sethur, fixed bugs that caused the DICOM reader to not correctly open multi-frame DICOMs, and 16-bit signed DICOMs, with RescaleSlope=1 and RescaleIntercept!=0.
• Thanks to Stein Rorvik, fixed a macro interpreter bug that prevented array functions like newArray() and split() from being used as arguments to user-defined functions.
• Thanks to Stein Rorvik, fixed a bug that caused the Window menu to not be updated when saving a table.
• Thanks to Stein Rorvik, fixed a bug that caused the Image>Transform>Translate command to ignore overlays.
• Thanks to Stein Rorvik, fixed a bug that caused right justified text in overlays to not be translated correctly.
• Thanks to Stein Rorvik, worked around a Java bug that caused the OpenDialog.setDefaultDirectory(path) method to sometimes not work as expected on Windows when the path used "/" separators.
• Thanks to Stein Rorvik, fixed a bug that caused macros calling open("") to not be aborted when the user clicked "Cancel" in the file open dialog and "Use JFileChooser to open/save" was enabled in the Edit>Options>Input/Output dialog box.
• Thanks to Nicolas De Francesco, fixed a bug that caused Process>FFT>Custom Filter to only process the current stack slice even though "Process entire stack" was checked in the dialog box.

• Plot enhancements, thanks to Michael Schmid:
  • The More>> menus have immediate preview.
  • New More>>Use Template menu (also with immediate preview), useful for creating plots with the same style.
  • Clicking into a rectangular area next to an axis shows the corresponding axis dialog.
  • When adding a curve to a "Live" plot, it remains when the plot is updated.
• Thanks to Jan Eglinger, saving TIFF images and stacks to network drives is up to 10 times faster.
• Thanks to Marcel Boeglin, the title of the selection list created by Image>Overlay>List Elements includes the image name. And, when you double click on a line, the image associated with the list is activated, the corresponding selection is activated and stacks are set to the selection position.
• Thanks to Michael Schmid, Process>Filters>Gaussian Blur now uses a Thread Pool, reducing overhead and making it faster for small images.
• Thanks to Stein Rorvik, you can now separately view and set the X, Y and Z dimension units in the Image>Properties dialog box.
• Thanks to Ryan Siu, the double click interval used to complete a polygon selection is reduced from 500ms to 250ms and a confirmation dialog is displayed when completing the selection and there are more than 25 points.
• Thanks to Stein Rorvik, the slider in the Image>Transform>Rotate dialog now shows the angle using two decimal places and the slider arrows increment/decrement by 0.1 degrees. Use the keyboard arrow keys as a shortcut to finely adjust the angle.
• Thanks to 'felix.b', labels of multi-point tool markers get larger as the markers get larger and there are two new marker sizes ("XXL" and "XXXL").
• Thanks to Stein Rorvik, the Image>Adjust>Coordinates command can now be used to set the Z unit.
• GenericDialogs display an error message if show() is called instead of showDialog().
• Added the getDir("downloads") macro function and the IJ.getDir("downloads") method.
• Thanks to Stein Rorvik, added the Roi.getPosition(channel,slice,frame), Roi.setPosition(channel,slice,frame), Stack.setXUnit(), Stack.setYUnit(), Stack.setUnits(x,y,z,time,value), Stack.getOrthoViews(x,y,z), Stack.getOrthoViewsIDs(xy,yz,xz), File.getDirectory(path) and File.getNameWithoutExtension(path) macro functions.
• Thanks to Leroy Olivier, added the Stack.getPointPosition(index) macro function.
• Added the IJ.openAsByteBuffer() method (example).
• Thanks to Michael Schmid, fixed a bug that caused the getInfo("window.title") macro function to not work as expected after opening a large text file using open("/path/to/largeFile.txt").
• Thanks to Stein Rorvik, fixed a bug that caused min/max values of calibrated 16-bit images to be shown without decimals in the "B&C" dialog.
• Thanks to Deborah Schmidt, fixed a bug that caused Fiji users to not be able to update via HTTPS through a proxy.
• Worked around a macOS bug that caused the keyboard arrow keys to not function as shortcuts for the increment/decrement arrows in GenericDialog sliders.
• Thanks to Marcel Boeglin, fixed a bug that could cause the particle analyzer to throw an exception when creating an overlay and no particles were detected.
• Thanks to Noreen Walker, fixed a bug that caused the image type to unexpectadly to change to COLOR_256 when using the "glasbey" LUT.
• Thanks to 'mountain_man', fixed a bug that caused images to not be displayed correctly if a LUT was applied before the image was shown.
• Thanks to 'mountain_man', fixed a bug that caused 8-bit PNG images with LUTs to open as type COLOR_256.
• Thanks to Jan Brocher, fixed a bug that caused the Edit>Selection>Create Selection command to ignore the "Black background" setting with non-thresholded binary images.
• Thanks to 'mountain_man', fixed a bug that caused ImageJ to not be be able to open TIFF files saved without a file path.
• Thanks to Birgit Moeller, fixed a bug that caused the "Label" column to not be sorted when using the "Sort" command in Results tables.
• Thanks to lguerard and mountain_man, fixed a bug that caused an ROI's hyperstack position to be lost when adding it to the RoiManager.
• Thanks to Philippe Carl and Michael Schmid, fixed a bug that caused OvalRoi.getMask() to sometimes return a zero-width mask.
• Thanks to Francois Gannier and Michael Schmid, fixed a 1.52o regression that caused the "Log" window to unexpectedly become the active window.

• Thanks to Michael Schmid, added the "Non-blocking filter dialogs" option to Edit>Options>Misc. The Convolve, Mean, Median, Minimum, Maximum, Variance and Image>Math commands use NonBlockingGenericDialogs when this option is enabled.
• "Save changes?" dialogs on Windows and Linux now use "Don't Save", "Cancel" and "Save" buttons.
• Thanks to Norbret Vischer, added the Dialog.addMessage(string,fontSize,fontColor) macro function (example).
• Thanks to Noreen Walker, the Image>Stacks>Statistics command and the StackStatistics class now calculate the median of non-float images.
• Drag and drop opening of images, tables and LUTs is recorded.
• Thanks to Michael Schmid, added the Plot.showValuesWithLabels() macro function and the Plot.getResultsTableWithLabels() method. Both create tables that use legend labels and/or axis labels as column headings. The List, Save Data and Copy All Data plot window commands also now use labels.
• Thanks to Jerome Mutterer, added the getValue("Length") macro function.
• Thanks to Jerome Mutterer, added the IJ.pad(string,digits) macro function and method.
• Thanks to Michael Schmid, the ImagePlus lock() and unlock() methods now support multiple lock/unlock operations by the same thread.
• Added the IJ.getValue(imp,measurement) method, where 'measurement' is "Area", "Mean", "StdDev", etc.
• Thanks to Stein Rorvik, fixed a bug that caused File>Import>Image Sequence to not correctly handle RGB48 images when "Use virtual stack" was enabled.
• Thanks to François Gannier, fixed a bug that caused the unit to not be set when "Function:" was set to "None" in the Analyze>Calibrate dialog.
• Thanks to 'Matthew', fixed bugs that cause the Table.deleteRows() macro function and IJ.deleteRows() method to not update particle analyzer overlays.
• Thanks to Norbert Vischer, fixed bugs that caused tables with missing columns or rows to not be opened correctly.
• Thanks to Sara Vecchio and Michael Schmid, fixed a bug that caussed the curve fitter to throw an exception if all data points contained NaNs.
• Thanks to Robert Haase, fixed a bug that caused the Process>Find Maxima to throw an exception in Fiji headless mode.
• Thanks to Stephen Royle, fixed a bug that caused the run("Fill") macro function to ignore setColor(pixelValue) calls.
• Thanks to 'mendel', fixed a bug that caused enlarged ROIs to be shifted if the polygon defining the original ROI had points outside the filled polygon.
• Thanks to Michael Schmid, fixed a bug that could cause ImageJ to freezes when running macros that manipulate stacks.
• Thanks to Norbert Vischer, fixed a bug that caused the numeric field in GenericDialog sliders to be too narrow when the maximum value was greater than 9999.
• Thanks to Norbert Vischer, fixed a bug that caused the getValue(x,y) macro function to not interpolate when x or y were real numbers.
• Thanks to Norbert Vischer, fixed a bug that caused the getPixel(x,y) macro function to not return raw pixel values when x or y were real numbers.
• Thanks to 'mountain_man', fixed a bug that caused line selections to not be correctly converted to ShapeRois.
• Thanks to Jeremy Adler, fixed a regression that caused the the makeSelection(10, xpoints, ypoints) macro function to throw an exception.
• Thanks to Dan McDonald, fixed a regression that caused the Raw File Opener to throw an exception.
• Fixed a 1.52a regression that caused tables created by the gel analyzer to not have row numbers.
• Thanks to Hyung-song Nam and Curtis Rueden, fixed a 1.52o regression that caused the Channels tool on macOS to become unresponsive.
• Thanks to Florian Jug, fixed a 1.52o regression that caused the "Auto" button in the "B&C" tool to not have focus on macOS.

• Thanks to Uwe Schmidt, improved the support for multiple screen setups:
  • Placement of first image window is more predictable.
  • Reliably determine the correct screen for a given location or window, for example to determine if a window can be enlarged.
  • If there is ambiguity about which screen to use, the one that contains the main ImageJ window will be chosen. For example Plugins>Utilities>Capture Screen and Windows>Tile use the screen with the main ImageJ window.
  • Dialogs are shown on the screen containing the main ImageJ window.
  • Maximized image windows no longer revert to the main screen.
  • Improved behavior of "+" (Image>Zoom>In) command.
  • Code simplification, especially by removing special cases for Linux.
• ImageJ displays a warning dialog before deleting a multi-point selection.
• Thanks to 'alex', the FITS Reader no longer flips images vertically so inspection of pixels will produce the expected values.
• Thanks to Jerome Mutterer, added the getValue(measurement) macro function, where 'measurement' is "Mean", "Median", "Feret", etc. (example).
• Added the getValue(x,y) macro function and the ImageProcessor.getValue(x,y) method.
• Thanks to "Herbie", restored macro support for the "lightGray", "darkGray" and "pink" named colors.
• Thanks to Somsubhro Chaudhuri, added the getValue("selection.angle") macro function and the Rotator.getAngle() method.
• Added the getValue("selection.size") macro function.
• Added the setOption("CopyHeadings",boolean) macro function.
• Thanks to Stein Rorvik, added the Roi.setAntiAlias(boolean) macro function, which can be used to control antialiasing when drawing selections (example).
• Thanks to 'MLdish', added the ParticleAnalyzer.setSummaryTable() method (JavaScript example).
• Thanks to Wilhelm Burger, added the Menus.add(menuPath,class) method.
• Thanks to Philippe Carl, added the RoiManager.getErrorMessage() method.
• Thanks to Laurent Thomas, updated the Javadoc of the MaximumFinder.getMaxima() methods to make it clearer that the npoints variable of the returned Polygon is the number of maxima found, not the length of the xpoints variable.
• Made the Toolbar.builtInTools array public.
• Thanks to Mikael Eriksson, fixed a bug that caused the particle analyzer's "Summary" table to not be accessible in macros run from the command line using the -batch option.
• Thanks to Andrew Clark, fixed a bug that caused Edit>Undo to delete all stack slices except the current one after using the flood fill tool.
• Thanks to 'Nhthayer', fixed a bug that caused imageJ to incorrectly read TIFF stacks created by the Python tifffile package when the "imagej=True" option was used.
• Thanks to Marcel Boeglin, fixed a bug that caused the Image>Adjust>Size command to throw on exception with XYCT hyperstacks.
• Thanks to Francisco Romanos, fixed a bug that caused the run("Scale...",options) macro function to ignore the 'interpolate' options keyword.
• Thanks to Glen MacDonald and Curtis Rueden, fixed a bug that sometimes caused macros in the "More Tools" (>>) menu to be sorted randomly.
• Thanks to Philippe Carl, fixed a bug that caused ImagePlus.getStatistic() and ImageProcessor.getStatistic() to not treat one point selections the same way.
• Thanks to Andrew Sonnier, fixed a bug that caused the particle analyzer to not be recorded if the "In situ" option was used.
• Thanks to Mikael Eriksson, fixed a bug that caused the run(“Colors…”,options) macro function to throw an exception when called from a -batch command line macro.
• Thanks to Stein Rorvik, fixed a bug that caused the Overlay.drawLine() macro function to not work correctly when used in conjuction with Overlay.setColor() and/or Overlay.setPosition().
• Thanks to 'Niederle', worked around a bug that caused the run("Gamma...", "value=x.xx") macro function to fail in Fiji headless mode.
• Thanks to 'fieryice12', fixed a bug that caused the Plot.showValues macro function to fail in batch mode.
• Thanks to NorbertVischer, fixed a bug that caused the Image>Duplicate command to throw on exception if the ROI was outside the image.

• Added the Help>Examples>Macro>Curve Fitting and Help>Examples>JavaScript>Curve Fitting examples.
• Thanks to Tiago Ferreira, stack and hyperstack scrollbars now apply the Edit>Options>Appearance "GUI scale".
• Thanks to 'mountain_man', tables can be sorted alphabetically.
• Thanks to Neil Switz, the Process>FFT>Inverse FFT command displays a warning message if the "FFT of ..." image has been modified but no pixels have been set to 0 or 255.
• Thanks to Stein Rorvik, copies of IJ_Props.txt and/or IJ_Prefs.txt in the ImageJ folder override the corresponding files in the default locations.
• Thanks to Stein Rorvik, the Table.update macro function is called automatically when a macro finsihes and the Table.setSelection(), Table.getSelectionStart and Table.getSelectionEnd functions no longer require that a title be specified.
• Thanks to Philippe Carl, the isKeyDown() and setKeyDown() macro functions now support the control key (example).
• Thanks to Stein Rorvik, the setColor() and setLineWidth() macro functions no longer abort the macro if no image is open.
• Thanks to Sian Culley, removed "Bridge" and "Lena" from the File>Open Samples menu. Macros and scripts that use these images will continue to work.
• Thanks to Stein Rorvik, the run("Apply LUT") macro function no longer shows an error message with images that have a display range of 0-255.
• Thanks to NorbertVischer, Philippe Carl and Stein Rorvik, added the Array.deleteValue() and Array.deleteIndex() macro functions (example).
• Thanks to Stein Rorvik, added the Table.setLocationAndSize() macro function.
• Added the ImagePlus.crop(options) method, where 'options' can be can be "stack", "slice" or a range (e.g., "20-30").
• Thanks to Stein Rorvik, fixed a bug the caused macros using a function key shortcut to not work if the shift key was down.
• Thanks to Salim Kanoun, fixed a bug in the DICOM reader that caused it to sometimes not correctly open PT DICOM stacks.
• Thanks to Stein Rorvik, fixed a rounding error with setMinAndMax() on some density calibrated 8-bit images.
• Fixed non-macro recording of the Image>Duplicate command.
• Thanks to Norbert Vischer, fixed a bug that caused the doWand(x,y,tolerance,"Smooth") macro function to cause the macro language's &var variable passing method to fail.
• Thanks to Jan Eglinger, fixed a bug that caused log histogram plots to be malformed if the line width was set to greater than 1.
• Thanks to Stein Rorvik, fixed a bug that caused the Table.title and getInfo("window.title") macro functions to sometimes not work with custom tables.
• Thanks to Stein Rorvik, fixed bugs related to saving and opening empty tables.
• Thanks to Norbert Vischer, fixed a bug that caused the Mac menu bar to disappear when activating the Channels, ColorPicker, ContrastAdjuster and ThresholdAdjuster dialogs.
• Thanks to Norbert Vischer, fixed a bug that caused the "Save changes?" dialog to not be the front-most window when quitting ImageJ.
• Thanks to Tihamer, fixed a bug that caused the CurveFitter.getResultString() method to fail if there was a fitting error.
• Thanks to Ellen Arena, fixed 1.52m regression that caused the Edit>Selection>Create Selection command to not work as expected with non-thresholded images.
• Thanks to Laurent Thomas, fixed a 1.52n regression that caused the MaximumFinder.getMaxima() method to always return 0 points.
• Thanks to Gabriel Landini, fixed a regression that could cause the ImagePlus.setSlice() method to throw an exception.

• Thanks to Ellen Arena, fixed a 1.52m regression that caused the Edit>Selection>Create Mask command to not preserve spatial calibration.

• ROI improvements thanks to Michael Schmid, including more accurate Roi.contains, better ShapeRoi filling, improved ShapeRoi.clone(), improved Roi Manager Split, better ShapeRoi length calculation, more accurate perimeter for ovals and rounded rectangles, more accurate MinFeret, removed point selection 32k slice limit, ability to press ESC to abort creation of polygonROI, and addition of Roi.getFeretPoints() macro function (example).
• Thanks to Tiago Ferreira, the "GUI scale (0.5-3.0)" setting in the Edit>Options>Appearance dialog is now applied to almost all remaining dialogs and widgets, including the Histogram and Plot Windows and the Threshold widget.
• Thanks to Norbert Vischer, added the File>Show Folder submenu.
• Thanks to Norbert Vischer and Michael Schmid, changed "Noise Tolerance" to "Prominence" and added a "Strict" option to the Process>Find Maxima dialog.
• Thanks to Hidenao Yamada, the File>Import>Raw command now uses long instead of int for the gap between images.
• Thanks to Stein Rorvik, Image>Stacks>Tools>Set Label and Image>Stacks>Tools>Remove Slice Labels work with single images.
• On macOS, the Help>Update ImageJ command displays a message explaining how to work around Path Randomization if the ImageJ home directory is read-only and the file path starts with "/private/var/folders/".
• Thanks to Christophe Leterrier, the File>Import>Image Sequence command now always sorts the files names on macOS.
• The File>Save As>Image Sequence command saves single line slice labels when saving in TIFF format.
• Thanks to Norbert Vischer, the File>Revert command now works with virtual stacks.
• Thanks to Alicia Daeden, the makeLine() and makePolygon() macro functions no longer have a 200 point limit.
• Thanks to Steve Fallows, File>Import>Raw only gets .raw file parameters from the filename when it uses 'x' delimiters.
• Thanks to Gilles Carpentier, added the is("line") and is("area") macro functions.
• Thanks to Albert Cardona, added the ImagePlus.updateVirtualSlice() method.
• Thanks to Michael Kaul, added the Plot.update() method.
• Thanks to 'cyrilturies' and Jan Eglinger, fixed a bug that caused Results table labels to not be displayed for line measurements if no measurement options were enabled in Analyze>Set Measurements.
• Thanks to Stein Rorvik, fixed rounding errors in the Image>Scale command.
• Thanks to Norbert Vischer, fixed a bug that caused the toolbar to be corrupted when opening an overlay containing multi-point selections.
• Thanks to Norbert Vischer, fixed bugs that caused numerous "//setTool()" statements to be recorded when opening ROI sets or overlays that contain multi-point selections.
• Fixed a bug that caused multi-point selections to lose their 'pointBeforeDeleting' property when saved and re-opened.
• Thanks to Michael Schmid, fixed a bug that caused Process>Filters>Gaussian Blur to not be multithread-safe.
• Thanks to Robert Lockwood, fixed a bug that caused the File>Save command to not be correctly recorded.
• Thanks to Albert Cardona, fixed bugs that caused Edit>Selection>Restore Selection, and setting an ROI from the ROI Manager, to not emit an Roi MODIFIED event.
• Thanks to Dr-Frog and Jan Eglinger, fixed a bug that caused the ImageProcessor.fillOutside(Roi) method to modify the Roi passed as the argument.
• Thanks to Teresa Haider, fixed a bug that sometimes caused Image>Transform>Bin to not correctly display the output image.
• Thanks to Stein Rorvik, fixed a 1.52d regression that caused File>Import>Image Sequence to use the image label (if present) as the slice label instead of the filename.
• Thanks to Gilles Carpentier, fixed a 1.52k regression that caused the particle analyzer to unexpectedly create composite ROIs.
• Thanks to Jan Eglinger, fixed a 1.52i regression that caused macro string expressions like "s"+a[i]*n to generate an error.

• Thanks to Albert Cardona and Gabriel Landini, added the "GUI scale (0.5-3.0)" option to the Edit>Options>Appearance dialog, which enables scaling of text in GenericDialogs and in the Command Finder. It also doubles the size of the tool icons if the scale is 1.5 or larger and triples the size if the scale is 2.5 or larger.
• Thanks to Norbert Vischer, added clickable spaces between the four arrow pairs in plot windows for quickly setting a single plot limit.
• Thanks to Stein Rorvik, ImageJ now displays a progress bar when duplicating large (>200 megapixel) stacks.
• Michael Schmid contributed an improved version of the ThresholdToSelection class (Edit>Selection>Create Selection) that always converts single pixel wide lines to traced selections and is up to five times faster.
• Thanks to Tatsuaki Kobayashi, ImageJ can now open 32-bit float DICOM images.
• Michael Schmid contributed the FloatArray class, an extendable float array.
• Thanks to Norbert Vischer, added the Table.setSelection(start,end,title), Table.getSelectionStart(title) and Table.getSelectionEnd(title) macro functions (example).
• Added the setOption("ScaleConversions",boolean) macro function.
• Thanks to Robert Haase, fixed a bug that caused the Edit>Selection>Create Selection command to ignore the "Black background" setting when processing non-thresholded binary images.
• Thanks to Johannes Wibisana, fixed a bug in the Particle Analyzer that caused ROIs added to overlays and the ROI Manager to not exclude interior holes.
• Thanks to Herbie, fixed a bug that caused the Process>Binary>Make Binary command to incorrectly set the threshold of 8-bit binary images.
• Thanks to Nicolas De Francesco, fixed a bug that caused the LUT to not be saved in the TIFF header when saving a single-channel image with a custom grayscale LUT.
• Thanks to Mark Mandelkern, fixed a bug that caused multi-image DICOM files with RescaleSlope!=1.0 to open incorrectly.
• Thanks to Stein Rorvik, fixed a bug that caused the contrast range to change when converting an 8-bit or 16-bit image to 32-bit.
• Thanks to Stein Rorvik, fixed a bug that caused the Table.getColumn("Label") macro function to throw an exception.
• Thanks to Philippe Carl, fixed a bug that caused ImageJ to freeze when opening the Interactive Interpreter on Windows using the ctrl+j keyboard shortcut.
• Thanks to Jerome Mutterer, fixed a bug that caused ImageJ to fail to open one column tables.
• Thanks to 'Bio7', worked around a bug that caused toolbar popup menus to not work with OpenJDK 11 and 12 on Windows.
• Thanks to Ved Sharma, fixed a bug that caused the Histogram command to not behave as expected when "Limit to Threshold" was enabled in Analyze>Set Measurements and there was an invisble threshold.
• Thanks to Norbert Vischer, fixed bugs in the toScaled(length) and toUnscaled(length) macro functions.
• Thanks to J Xiong, fixed a 1.52j regression that caused the Image>Overlay>From ROI Manager command to throw an exception.
• Thanks to Philippe Carl, fixed 1.52j9 regression that made it impossible to enter closing brackets into editor windows using French keyboards.
• Thanks to Stein Rorvik, fixed 1.52j regression that sometimes caused macro errors to be ignored (examples).
• Thanks to 'yorgodillo', 'mountain_man' and Jan Eglinger, fixed a 1.52e regression that caused float to 8-bit conversions to be done incorrectly.

• Added the Plugins>Macros>Interactive Interpreter command (shortcut: "j"), which enables interactive editing and running of macro and JavaScript code in an editor window (example). Type "js" in to switch the language to JavaScript.
• Thanks to Ved Sharma, point selections with more than 65,535 points can now be saved and reopened (example).
• Thanks to Philippe Carl, the status bar is updated when adjusting elliptical and rotated rectangle selections.
• Thanks to Ilan Tal, added the "Ignore Rescale Slopet" checkbox to the Edit>Options>DICOM dialog box.
• Thanks to Michael Schmid, Image>Edit>Resize can now convert a single image to a stack.
• Thanks to MichaelSchmid, improved the calculation of Feret parameters for composite selections. FeretAngle is now reported (within 0.5 deg), works with pixel aspect ratios different from one and is more accuate due to use of 0.5 deg increments.
• Thanks to MichaelSchmid, the output of ROI Manager 'AND', 'OR' and 'XOR' operations are, if possible, converted from composite ROIs into simpler polygon ROIs.
• Thanks to Jerome Mutterer, errors in macro run() statements are now reported using a "Macro Error" dialog that displays the line number.
• Added the ImagePlus.plotHistogram() method. For examples, run Help>Examples>JavaScript>Histogram Plots.
• Added the JavaScript-friendly ImageStatistics.histogram() method (example).
• Added the Overlay.setLabelFontSize(size,options), Overlay.setLabelColor(), Overlay.setStrokeColor() and Overlay.setStrokeWidth() macro functions, and corresponding Overlay class methods (example).
• Thanks to Jerome Mutterer, added the setIgnoreErrors() and getErrorMessage() methods to the Interpreter class (example).
• Thanks to Michael Schmid, fixed a bug that caused Image>Edit>Resize to not preserve stack lookup tables.
• Thanks to Stein Rorvik, fixed Orthogonal Views bugs that caused freezing, dragging in XZ and YZ views to not work, missing density calibration and incorrect behavior when "Rotate YZ" and "Flip XZ" where enabled in Edit>Options>DICOM.
• Thanks to Stein Rorvik, fixed a bug that caused particle analyzer overlays to not be specific to the current slice when processing one slice.
• Fixed a bug that caused the color of overlay labels to be set to black after the image was saved and reopened.
• Fixed a bug that caused the Image>Overlay>To ROI Manager command to not preserve overlay properties such a label color and scalability.
• Thanks to Wilhelm Burger, fixed a bug that caused the Roi.setLocation(x,y) method to not work correctly with ShapeRois if x or y were not integers.
• Thanks to Philippe Carl, fixed a bug that caused the status bar to not be updated, or to not be updated correctly, when moving or changing the length of straight line and arrow selections using the arrow keys.

• Thanks to Ved Sharma and Michael Kaul, added the Image>Stacks>Measure Stack command (macro source), useful for plotting stacks using the contextual (right-click) Plot command in Results tables.
• Thanks to Jerome Mutterer, added the Image>Stacks>Tools>Magic Montage Tools command (macro source).
• Tables can be sorted using the Sort command in the contextual (right-click) menu or in the Results menu (example).
• Thanks to Matias Andina, the Image>Transform>Rotate command can now be used interactiely.
• Thanks to Michael Schmid, added an "F" (Fit All) icon next to the "R" (Reset Range) icon in the bottom-left corner of plot windows.
• Thanks to Robert Haase and Emanuele Martini, added a "Don't reset range" checkbox to the "Threshold" dialog (example).
• Added an error bars example to the Help>Examples>Plots>Plot Styles macro.
• Alphabetized the Image>Stacks>Tools menu.
• Moved the Image>Stacks>Plot XY Profile command to Image>Stacks>Tools>Plot XY Profile.
• Thanks to 'Barbara' and Michael Schmid, the Translate command in the ROI Manager remembers the x and y offset values.
• Thanks to Alex Mironov, added an optional properties string argument to the makePoint() macro function (macro example, JavaScript example).
• Thanks to Alex Mironov, the setLineWidth() macro function automatically calls Overlay.add() when the line width changes (example).
• Added the Plot.replace() macro function and method. For examples, run Help>Examples>Plots>Random Data or Help>Examples>JavaScript>Plot Random Data.
• Thanks to Michael Schmid, added an "Add Fit" commamnd to the Data>> menu of Plot windows.
• Thanks to Laurent Thomas, ShortProcessor.rotate() and FloatProcessor.rotate() now fill using the value set by setBackgroundValue().
• Thanks to Kai Barthel, the Analyze>Calibrate command resets the display range of contrast-reduced images.
• Thanks to Norbert Vischer, the curve fitter now works with datasets containing NaNs.
• Thanks to Michael Schmid, added the Plot.objectCount macro function.
• Thanks to Matias Andina, added the setOption("SupportMacroUndo",boolean) macro function (example).
• Thanks to Michael Schmid, added a constructor for creating a plot from arrays to the PlotContentsDialog class (example).
• Added the PointRoi.getLastCounter() method.
• Added the getSizeInBytes() methods to the ImagePlus class.
• Thanks to Philippe Carl and Michael Schmid, fixed a bug that caused the macro interpreter to incorrectly evaluate string expressions containing numeric arrays indexed using the ++ operator.
• Thanks to Stein Rorvik, fixed a bug that caused the changeValues() macro funtion to reset the display range of 16-bit and 32-bit images.
• Thanks to Alex Mironov, fixed a bug that caused setLineWidth(1) in a macro to incorrectly set the line width to the width set in the Edit>Options>Line Width dialog.
• Thanks to Michael Schmid, fixed a bug that caused the Undo command to not work after rotating an image with "Enlarge image" enabled.
• Thanks to Matias Andina, fixed a bug that caused the Undo command to not work after cropping or rotating a composite color image.
• Thanks to Michael Schmid, fixed a bug that caused nudging the end of a line selection with alt-arrow keys to not update a live profile plot.
• Thanks to Mark Senko and Michael Schmid, fixed a bug that caused profile plots of line selections wider than 1 to differ from profile plots of rectangles of the same size.
• Fixed a bug that caused DICOM images to be displayed incorrectly if "Open as 32-bit float" was enabled in Edit>Options>DICOM.
• Thanks to Kenneth Sloan, fixed a bug that caused the Paintbrush Tool (in "Paint on overlay" mode) to delete pre-existing overlays.
• Thanks to 'mountain_man', fixed a bug that caused the Rescale Slope tag (0028,1053) to be ignored when opening DICOM images and "Open as 32-bit float" was not enabled in Edit>Options>DICOM.
• Thanks to Fred Damen, fixed a file path recording bug that caused a NullPointerException.
• Thanks to Michael Schmid, fixed a bug that caused buttons in some dialogs (e.g., "B&C" and "Threshold") to not be displayed correctly on macOS when using the Metal look and feel. Opening an Action Bar switches to Metal or use Edit>Options>Look and Feel in Fiji.
• Thanks to Michael Schmid, fixed a bug that caused plot stacks to not be spatially calibrated.
• Thanks to Nicolas Stifani, fixed a 1.52h regression on Windows that caused canceled dialog boxes in macros started using the Plugins>Macros>Run command to throw an exception.
• Thanks to Jerome Mutterer, fixed a v1.52 regression that caused the getMetadata() macro function (without the "info" or "label" argument) to not work as expected.

• Plot enhancements, thanks to Michael Schmid:
  • "Save" in plot windows has moved into a new Data>> menu, which includes two additional items: (1) Add from Plot (takes a PlotObject, e.g. data set, text, etc., from a different plot) and (2) Add from Table (adds data from a "Results" table).
  • Values in tables can be be plotted directly using the contextual menu or the Results>Plot command in "Results" tables.
  • Added the Separated Bar type, a bar graph with some space between the columns. For an example, run Help>Examples>JavaScript>Plot Styles.
  • Histogram-like "Bar" plots also work with non-equidistant points along x.
  • Connected Circles fill the circles with the secondary color (= line color), if that color is given and not null.
  • Improved the code for filling bars and "filled" curves.
  • For "Bar" and "Separated Bar", the base line of the plot is y = 0 if the values differ by more than a factor of 2.
• Added the Help>Examples>Plots>Plot Styles and ...JavaScript>Plot Styles examples.
• The Edit>Selection>Create Mask command works with overlays created by the Brush and Pencil tools.
• Added a "Help" button to the Brush and Pencil tool dialog boxes.
• Thanks to Gabriel Landini and Jerome Mutterer, the text tool now creates an "Enter text..." selection when you click (without dragging) on an image and there is no existing selection.
• Thanks to Gabriel Landini, the "Show on all slices" option (was "Show all") now appears in both the point and multi-point tool dialogs.
• Thanks to Stein Rorvik, the Analyze>Tools>Synchronize Windows tool now supports use of the "+" and "-" keys for synchronized zooming when the "Image scaling" option is enabled.
• Thanks to Lorenzo Cangiano, added a "Points" column to the Image>Overlay>List Elements table.
• Added the Plot.setStyle() macro function. For an example, run Help>Examples>Plots>Plot Styles.
• Added the IJ.exit() method, which aborts JavaScripts.
• Thanks to Bio7, fixed a bug that caused images to turn black when assigned an ImageRoi created by the Brush or Pencil tools.
• Thanks to Stein Rorvik, fixed bugs that caused File>Open Next to sometimes fail when opening images of dissimilar types.
• Thanks to Michael Schmid, fixed several bugs in the Image>Adjust>Threshold tool, mostly related to 32-bit images.
• Thanks to Michael Cammer and Michael Schmid, fixed a bug that caused the "Propagate to the other n channels of this image" option of the "Set" command in the "B&C" tool to not work as expected.
• Thanks to Stein Rorvik and Michael Schmid, fixed a bug that caused an image pasted into a zoomed image to be incorrectly positioned if the pasted image was equal or larger in size than the target image.
• Thanks to Stein Rorvik, fixed bugs that caused scale bars to be incorrectly positioned on large images and macros to alter default scale bar dialog settings.
• Fixed a bug that caused keyboard shortcuts for zooming in and out, as well as other shortcuts, to not work when a text selection was active.
• Thanks to Stein Rorvik, fixed a bug that caused right-justified text added to an overlay by the Overlay.drawString() macro function to not be displayed correctly.
• Thanks to "hwada", fixed bugs that caused the ImagePlus.setImage(ImagePlus) method to sometimes not work as expected.
• Thanks to Nathalie Houssin, fixed a bug that caused the Make Substack command to throw an exception when used with hyperstacks opened by the OlympusViewer plugin.
• Fixed bugs in the ImagePlus.setStack() method.
• Thanks to Michael Schmid, fixed a bug that caused the "Show All" button in the ROI Manager to not work as expected with point selections.
• Thanks to Lorenzo Cangiano, fixed a bug that caused programmatically generated overlays of PointRois on stacks to be not shown when saved and reopened.
• Thanks to Robert Haase, fixed a bug that could cause the PolygonRoi.getTracedPerimeter() method to throw a NullPointerException.
• Thanks to Hyung-song Nam and Curtis Rueden, fixed a bug that caused keyboard shortcuts to not work with the "Channels" tool.
• Thanks to Gilles Carpentier, fixed a 1.52f regression that caused the Edit>Selection>Create Mask command to not work as expected if the image had both an roi and an overlay.
• Thanks to Norbert Vischer, fixed a 1.52g regression that caused multi-channel images to lose color table and display range information after being cropped and saved.
• Thanks to Stephen Royle, fixed a 1.52h regression that caused the Image>Transform>Rotate 90 Degrees Right (or Left) command to not work as expected with composite images.

• A text selection in an overlay can be deleted by alt-clicking on it and pressing backspace+delete (on Windows) or command+delete (on Macs).
• Fixed a bug that caused polygon and polyline selections to lose properties like color, line width and name when a point is added by shift-clicking on an existing point.
• Thanks to Dave Mason, fixed a bug that caused the File>Import>URL command to not correctly open Hyperstacks.
• Thanks to Volko Straub, fixed a 1.52f regression that caused getDirectory("") on Windows to return a string ending in "/" instead of the expected "\".

• Thanks to Norbert Vischer, added the Plot.addHistogram() macro function, which plots a histogram from an array (example).
• Thanks to Norbert Vischer, any currently running macro is aborted when running an installed macro from the Plugins>Macros menu or the editor's Macros menu.
• Thanks to Michael Schmid, added the "Error Function" [y=a+b*erf((x-c)/d)] curve fit option and the ij.util.IJ.Math.erf(x) method (example).
• The Edit>Selection>Create Mask command works with line selections and overlays.
• The "Black background" setting defaults to 'true'.
• Thanks to Anna Povolna, the "Open all files in folder" and "Use virtual stack" options in the File>Import>raw dialog can be used at the same time.
• Thanks to 'Sethur', ImageJ no longer sorts imported DICOM stacks by series number (tag 0020,0011) if "Sort images numerically" is not checked in the File>Import>ImageSequence dialog. Also added a recordable 'noMetaSort' option to the options string of the FolderOpener.open(dir,options) method.
• Thanks to 'Alan', added the createThresholdMask() and createRoiMask() methods to the ImagePlus class. These methods are recorded when using the Edit>Selection>Create Mask command (JavaScript example).
• Added the recordable Raw.open(), Raw.openAll() and Raw.openAllVirtual() methods (JavaScript example).
• Thanks to Stein Rorvik, added the DicomTools.getTagName(tag) method.
• Thanks to Christian Tischer, fixed bugs in the RoiManager.add(ImagePlus,Roi,int) method than caused it to not behave as expected if the ROI name was not null.
• Thanks to Norbert Vischer, fixed bugs that caused the Edit>Cut and Analyze>Set Scale commands to not set the 'changes' flag.
• Thanks to Stein Rorvik, fixed a bug that caused the Overlay.drawString macro function to ignore the justification set by the setJustification() function.
• Thanks to Stein Rorvik, fixed a bug that caused output of the Overlay.drawString() function to be lost when text is added using Overlay.addSelection().
• Thanks to Lorenzo Cangiono, fixed a bug that caused selections pasted into images to not be saved.
• Thanks to Mahmoudi Sidi Ahmed, fixed a bug that caused the Analyze>Calibrate command to not work with signed 16-bit images.
• Thanks to Menelaos Symeonides, fixed an ROI Manager bug that caused the stack position to be ignored when measuring renamed ROIs.
• Thanks to Ron DeSpain, fixed a bug that caused attempts to add to (by holding shift key down) and subract from (by holding alt key down) elliptical selections to fail.
• Thanks to Ron DeSpain, fixed a bug that caused the Window>Tile command to overlap the "ImageJ" window with image titles.
• Thanks to Pete Bankhead, fixed a bug the caused the Process>Batch>Convert command to not work correctly on Macs.
• Thanks to 'Hamish', fixed a bug that caused the roiManager("delete") macro function to throw an exception when used in a loop.
• Thanks to Stein Rorvik, fixed a bug that caused one column results tables to not be displayed correctly.
• Thanks to Stein Rorvik, fixed a bug that caused File>Import>Raw to silently fail when importing a stack and the file size was smaller than the size of a single image.
• Thanks to Stein Rorvik, fixed a bug that caused the Overlay.drawString() macro function to not correctly display right-justified text.
• Thanks to Stein Rorvik, fixed bugs that caused the run("Raw...",options) and run("Image Sequence...",options) macro functions to fail silently if the file or folder did not exist.
• Thanks to Stein Rorvik, fixed a bug that caused the stack title to be incorrect after importing an image sequence on Windows using a file path with forward slashes.
• Thanks to Stein Rorvik, fixed a bug that caused File>Open Next to not correctly open a non-composite image after having opened a composite image.
• Thanks to Ved Sharma, fixed an ROI Manager bug that caused a "Rename ROI" dialog do be unexpectadly displayed when running macro using setKeyDown("alt") and makeOval() to create a composite selection.
• Thanks to Ved Sharma, fixed an ROI Manager bug that caused an exception when saving an ROI set containing a point selection followed by a composite selection.
• Thanks to Salim Kanoun, fixed a bug that caused RoiManager.addRoi(roi) calls to be ignored if the ROI was a duplicate.
• Thanks to 'TMC', fixed a bug that caused the ROI Manager's "Interpolate ROIs" command to throw an exception.
• Thanks to 'Agnieszka', fixed a bug that caused the ImagePlus.getFileInfo() method to throw a NullPointerException.
• Thanks to Stein Rorvik, fixed a bug that caused the Macros>Evaluate commands in the text editor to not update the Window menu.
• Thanks to Norbert Vischer, fixed a bug that caused the macro editor to not always abort any existing macro before running another one.
• Thanks to Manel Bosch, fixed a 1.52e regression that caused image conversions to RGB to not preserve the color coding.

• The "Threshold" tool no longer resets the display range of 16-bit and 32-bit images.
• Restored the "Set" button (removed in 1.51r) to the "Threshold" dialog,
• Thanks to Kai Schleicher, the options string of the FolderOpener.open(dir,options) method can now include a file name filter (example).
• Added a no-argument constructor to the PointRoi class (example at Help>Examples>JavaScript>Points).
• Added the Roi.size() method, equivalent to Roi.getPolygon().npoints.
• Added the FFT.forward(), FFT.multiply(), FFT.inverse() and FFT.filter() methods (JavaScript example).
• The open("/path/to/file.avi") macro function and the IJ.openImage("/path/to/file.avi") method now open AVI files by default as virtual stacks.
• Thanks to Volko Straub and Michael Schmid, fixed bugs that caused the ImageProcessor.isInvertedLut() and ImageProcessor.isColorLut() methods to sometimes incorrectly return 'true' with thresholded images.
• Thanks to Volko Straub, fixed a bug that could cause non-thresholded pixels in 16-bit and 32-bit images to be highlighted in red (example).
• Thanks to Thomas Boudier and Jan Eglinger, fixed a bug that caused macro file name parameters containing a "]" character to not be read correctly.
• Thanks to Michael Nonet, fixed a bug caused the median to always be set to zero when measuring line selections.
• Thanks to Norbert Vischer, fixed a bug that caused errors after running the run("RGB Stack") or run("HSB Stack") macro functions on large images when running Java 8 on macOS.
• Thanks to Chris Wood and Curtis Rueden, fixed a bug that caused the Image>Stacks>Delete Slice command to deadlock when deleting the last channel of a hyperstack.
• Thanks to Stein Rorvik, fixed a bug that caused the Process>Math>NaN Background command to throw an exception when attempting to process a non-32-bit stack.
• Thanks to Stein Rorvik, fixed a bug on Windows that caused text to be pasted into text editor windows at the wrong position.
• Thanks to Stein Rorvik, fixed a bug that caused print("\n\n") to do nothing instead of outputting two blank lines as expected.
• Thanks to 'mryellow', fixed a bug that caused polygonal ROIs with more than 65,535 points to not be saved correctly.
• Thanks to Stein Rorvik, fixed a bug that caused right justified TextRois. to not be displayed correctly if the fill color was not set.
• Thanks to Lorenzo Cangiano and Jan Eglinger, fixed a 1.52c regression that caused a "Save changes?" dialog to be unexpectedly displayed when closing an image with a multi-point selection.
• Thanks to Stein Rorvik, fixed a 1.52d regression that caused density calibration to be lost when duplicating 8-bit and 16-bit images.

• The Image>Show Info command no longer truncates one line slice labels to 60 charactera.
• Thanks to Norbert Vischer, the changeValues() macro function can now be used to replace NaNs. (example).
• Thanks to Mark Histed, when the shift key is down, the display range is no longer changed when stepping forward/back in a stack.
• Thanks to Hugo, the Process>FFT command displays an error message if the padded image is going to be 65536x65536 or larger.
• Thanks to Roger Leigh, the IJ.javaVersion() method works with Java 11.
• Added the IJ.Roi(x,y,w,h) and IJ.OvalRoi(x,y,w,h) methods.
• Thanks to Gregor and Michael Schmid, added the ImageProcessor.createMask() method (example).
• Thanks to David Kysela, added the PointRoi.promptBeforeDeleting(boolean) method (example).
• Thanks to Laurent Thomas, added the ImagesToStack.run(images) method (example).
• Added the Tools.getStatistics(double[]) method.
• Thanks to Ximo Soriano and Michael Schmid, fixed a bug that could cause the newImage("Name","RGB noise",width,height,1) macro function to throw an exception.
• Thanks to Ruben Gres, fixed a bug that caused the Overlay.duplicate() method to not keep the 'isCalibrationBar' and 'selectable' settings.
• Thanks to David Schreiner, fixed bugs that caused the File>Import>Image Sequence command to not correctly handle image metadata longer then 60 characters.
• Thanks to 'yahbai', fixed bugs that caused the saveAs("jpg",path), saveAs("gif",path) and Overlay.measure macro functions to not work in headless mode.
• Thanks to 'yahbai', fixed a bug that caused the ImagePlus.deleteRoi() method to throw an exception in headless mode.
• Thanks to Michael Kaul, fixed a 1.52a regression that caused an EOFException when opening Analyze format RGB images.
• Thanks to Bill Christens-Barry, fixed a 1.52b regression that caused the label set with the setMetadata("Label", label) macro function to not be displayed in the image subtitle of single images.
• Thanks to Michael Cammer, fixed a 1.52c regression that caused the Image>Crop command to not work as expected with 16-bit images.
• Thanks to Peter Meijer, fixed a 1.52c regression that could cause ClassCastExceptions when converting RGB images to stacks.

• Activating an ROI in an overlay created by Measure (with ‚ÄúAdd to overlay" enabled), or by the particle analyzer, selects the corresponding row in the "Results" table.
• ImageJ displays a "Delete Points?" dialog before deleting a multi-point selection with counters.
• Thanks to "zzyzyman", fixed a bug that caused ImageJ to fail to open odd-width RGB AVI files.
• Thanks to Merijn van Erp, fixed a bug that caused the CurveFitter.getSortedFitList() method to throw an exception.
• Thanks to Kees Straatman and Bill Christens-Barry, fixed a bug in the macro interpreter that caused it to not detect a missing '[' after an array variable.
• Thanks to Mike, fixed a 1.52b regression that caused the AVI Reader to fail with a "Required item ‚Äò00ix‚Äô not found" error.
• Thanks to Curtis Rueden, fixed a 1.51t regression that caused errors in headless mode macros to throw a HeadlessException.
• Thanks to 'cortig' and Curtis Rueden, fixed a 1.52b regression that caused the "Apply" option of the Image>Adjust>Threshold command to not behave as expected with 16 and 32 bit images.

• Changed "Random" to "Noise" in the "Fill with:" choice of the File>New>Image dialog box.
• Thanks to Christian Evenhuis, fixed a bug with the Edit>Selection>Line to Area command that caused the resulting area selection to translated if the source was a polyline or freeline selection less than 5 pixels wide.
• Added the IJ.javaVersion() method.
• Thanks to Fred Damen, fixed bugs that caused the Image>Stacks>Tools>Concatenate command to sometimes not work as expected.
• Thanks to Aryeh Weiss and Michael Schmid, worked around a Linux problem with large images not showing at low magnification.
• Thanks to Fred Damen, fixed bugs that sometimes caused slices labels of single slice stacks to be lost.
• Thanks to BrainPatcher and Stefan Helfrich, fixed a bug that caused the ROI Manager's "Multi Measure" command to not work correctly with point selections.
• Thanks to "zzyzyman", fixed a bug that caused ImageJ to fail to open AVI files that used the 'indx'/'ix00' indexing schema.
• Thanks to Moses, fixed a 1.52a regression that caused row labels to be omitted from tables created by the ROI Manager's "Multi Measure" command.
• Thanks to Jerome Mutterer, fixed a 1.52a regression that caused imported Results tables to be displayed without row numbers.

• Thanks to Michael Schmid, added Apply Macro commands to the Edit and contextual (right click pop-up) menus of table windows. Also added the ResultsTable.applyMacro() method (JavaScript example).
• Thanks to Ron DeSpain, tables created by the Image>Overlay>List Elements command can be renamed "Results" and the values accessed using the getResults() and getStringResult() macro functions.
• Removed the obsolete Plugins>New>Table command. Macros that use this command will continue to work.
• Thanks to Michael Kaul, added an optional 5th argument ('stepSize') to the Dialog.addSlider() macro function (example).
• Thanks to Gabriel Landini, on Linux, added the ‚ÄúCancel button on right‚Äù option to the Edit>Options>Appearance dialog box.
• The "showRowNumbers" property of the ResultsTable class now defaults to 'false'.
• Thanks to Adrian Daerr, when importing ".raw" files with dimensions encoded in the name (e.g. "myfile-640x480.raw"), the byte order is set to big-endian if the name ends in "be.raw" and to little-endian if the name ends in "le.raw".
• Thanks to Arttu Miettinen, imported ".raw" files with dimensions encoded in the name can have a width and/or height less than 10.
• Thanks to Stein Rorvik, added toScaled(x,y,z) and toUnscaled(x,y,z) macro functions.
• Added 20 macro functions that work with tables. They operate on the current (frontmost) table or an optional title argument can be provided (e.g., Table.size("My Table")). Examples: Sine/Cosine Tables, Rearrange Table and Access Tables.
  • Table.create() - opens a new table
  • Table.reset() - resets (clears) the table
  • Table.size() - number of rows in the table
  • Table.title() - title of the current table
  • Table.headings() - column headings as a tab-delimited string
  • Table.get(columnName, rowIndex) - returns a numeric value
  • Table.getColumn(columnName) - returns a column as an array
  • Table.getString(columnName, rowIndex) - returns a string value
  • Table.set(columnName, rowIndex, value) - sets numeric or string value
  • Table.setColumn(columnName, array) - sets an array as a column
  • Table.update() - updates table window
  • Table.applyMacro(macro) - applies macro code to table
  • Table.rename(title1, title2) - renames a table
  • Table.save(filePath) - saves the table
  • Table.open(filePath) - opens a table
  • Table.deleteRows(index1, index2) - deletes specified rows
  • Table.renameColumn(oldName, newName) - renames a column
  • Table.deleteColumn(columnName) - deletes specified column
  • Table.showRowNumbers(boolean) - enable/disable row numbers
  • Table.showArrays(titleAndOptions, array1, array2, ...) - displays arrays in a table (like Array.show)
• Thanks to Trevor Joyce and A Schain, added the macro-callable RoiManager.getIndexesAsString() method.
• Thanks to Michael Schmid, added the Tools.copyFile(path1,path2) method.
• Thanks to Salim Kanoun, added the RoiManager.setRoi(roi,index) and Overlay.set(roi,index) methods.
• Thanks to Fred Damen, fixed a bug that caused the SubHyperstackMaker.makeSubhyperstack() method to not work when extracting a single frame.
• Thanks to Fred Damen and Michael Schmid, fixed a curve fitter bug that could cause a NullPointerException.
• Thanks to Norbert Vischer, fixed a bug that caused the File.copy() macro function to not preserve the modification date.
• Thanks to Philippe Carl, fixed a bug that caused the Image>Hyperstacks>Reduce Dimensionality command to not preserve the "Info" image property.
• Thanks to Jan Eglinger, fixed bugs that caused the roiManager("open",path) macro function to ignore the roi name and roiManager("save",path) not to be recorded when 'path' ended in ".roi".
• Thanks to Norbert Vischer, fixed a bug that caused the Image Calculator to not correctly calculate the result when the operation is MULTIPLY or DIVIDE, the 1st image is 8 or 16 bit, the 2nd image is 32 bit and "32-bit result" is unchecked.
• Thanks to Mark Rivers, fixed a bug that caused ImageJ to not correctly open some uncompressed planar RGB TIFFs.
• Fixed a 1.51s regression that caused statistical calculations on small 16-bit images or selections to be much slower.
• Thanks to Michael Schmid, fixed a 1.51o regression that caused the particle analyzer to hang when processong 32-bit images.

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