ImageJ 1.54h x64

Thanks to Michael Schmid, improved the fidelity of the RGB to indexed color conversion done by the Image>Type>8-bit Color command.
Thanks to Michael Ellis, added the ImageListenerAdapter class, which supports notification when an ImagePlus is saved.
Thanks to 'mandamanta', a warning is displayed in the "Log" window if no particles are detected by the particle analyzer when its running in batch mode.
Thanks to Philippe Carl, added the Dialog.enableYesNoCancel and Dialog.getYesNoCancel macro functions (example).
Thanks to Michael Schmid, the Plot.update() macro function now works for plots that are not under construction.
Thanks to Stein Rorvik, fixed bug where use of a modifier key in the text editor caused isKeyDown() calls to be stuck returning 'true' for that modifier.
Thanks to 'IztokD', fixed bugs with the Plot.getValues() macro function not working in batch mode.
Thanks to 'Fijipuff', fixed bug with making montages of multi-channel "Composite" mode images.
Thanks to Michael Schmid, fixed exceptions that occurred with Plot.addLabel() and with the Image>Color>Show LUT command.
Thanks to Michael Schmid, fixed an exception that occurred with Plot.addLabel().
Thanks to Michael Schmid, fixed several Image>Color>Show LUT bugs.
Thanks to Michael Schmid, fixed bug with virtual stacks that cache pixel data (example).
Thanks to Rodrigo Goncalves, fixed bug that caused the Color Thresholder's "Original" button to not work as expected.
Thanks to Etienne Monier, fixed bug with opening image URLs that include access credentials.
Thanks to Nick Condon, fixed a 1.53 regression that made the Plot.getValues() macro function slower.
Thanks to Stein Rorvik, fixed a 1.54e regression with the Overlay.addSelection(fcolor,0,bcolor) macro function when used with a text selection.
Thanks to Michael Cammer, fixed a 1.53b regression that caused selection outlines to scale when zooming if the GUI scale was greater than 1.0.

Thanks to Stein Rorvik, added the Edit>Selection>Translate command, the ROI Manager Scale and Rotate commands, and the RoiManager.scale(), RoiManager.rotate(), RoiManager.translate(), RoiManager.selectByName() and RoiManager.getIndex() macro functions.
Thanks to Fred Damen, added the Image>HyperStacks>Make Subset command, an alias for the Image>Stacks>Tools>Make Substack command.
Thanks to Fred Damen, GenericDialog sliders are mouse wheel controllable and TextFields on Linux are not as tall.
Thanks to Wilhelm Burger, the ClassChecker no longer deletes files and only runs when the Compile and Run command is used.
Thanks to Stein Rorvik, added the Dialog.addImageChoice(label,default) macro function.
Thanks to Michael Schmid, fixed several plot legand issues (example).
Thanks to Laurent Thomas, units of imported tiffs are converted to microns if the pixel width is Thanks to Lance Davidson, ImageJ now correctly opens CSV files that start with a 0xFEFF character (zero width no-break space).
Thanks to Tiago Ferreira, fixed a bug that caused commands and keyboard shortcuts installed by StartupMacros.txt in the Plugins>Macros menu to be deleted when a macro tool was added to the toolbar.
Thanks to 'DentedDuck', fixed a bug that caused the Image>Transform>Rotate command to increase the image width or height by one pixel if the angle was 0 or 90 degrees and "Enlage image" was checked.
Thanks to Norbert Vischer, fixed a bug that caused an exception to occur when duplicating a stack and the "Range:" field was empty.
Thanks to Fred Damen, fixed a bug that caused the Image>Stacks>Tools>Make Substack command to not work correctly with stacks with nSlices=1 and nFrames>1.
Thanks to Michael Schmid, fixed a bug that caused point selection bounds to be too wide and tall by 1 pixel (example).
Thanks to Stein Rorvik, fixed a bug that caused the toString(number,decimalPlaces) macro function to not work as expected.
Thanks to Ellie Cho and 'Research_Associate', fixed a 1.53h regression that caused ROIs to not be drawn on images displayed using setBatchMode("show").

Thanks to Kevin Terretaz, added the More>Invert LUTs command to the "Channels" dialog.
Thanks to Olivier Burri, ImageJ calculates the perimeter of a "polygon" ROI the same way as a "traced" ROI if it appears to have been created by edge tracing.
Thanks to 'muniak', the Process>Enhance Contrast dialog displays values using 2 decimal places.
Thanks to Norbert Vischer, replaced, in the ImageJ source, deprecated new Integer(intOrString) and new Double(intOrString) constructors with Integer.valueOf(intOrString) and Double.valueOf(intOrString).
Thanks to 'TMC', added the showRow() and showCell() methods to the TextPanel class (example).
Thanks to Fred Damen, fixed a bug that caused bin starts in tables created by clicking on "List" in histogram windows to be rounded to integers.
Thanks to Herbie Gluender, fixed a bug that caused Undo of rotated images with overlays to not work as expected.
Thanks to Michael Schmid, fixed a regression that caused some PNG images to open as stacks.
Thanks to Christophe Leterrier, fixed a 1.53p regression that caused the run("Table...",options) macro function to fail.

Thanks to Zoltan Kis, the File>Import>Image Sequence dialog now displays the number of images that will be opened.
Thanks to Norbert Vischer, exceptions on the Event Dispatch Thread are now reported in the Log window.
Thanks to Remi Berthoz, the Analyze>Tools>Scale Bar command now has the ability to draw both vertical and/or horizontal scale bars.
Thanks to Stein Rorvik, added a "Colors..." command to the Color Picker dropdown menu and made most of the commands in that menu recordable.
Thanks to Esteban Fernandez, added a "Fill color:" field to the Image>Stacks>Images to Stack dialog box.
Thanks to Barry DeZonia, the findMinAndMax() methods in the Short/Int/Float processors are now faster (Plugins>Utilities>Benchmark runs 3% faster).
Thanks to Michael Schmid, added support for drag and drop to JFileChooser dialogs.
Thanks to Nicolas De Francesco, updated the Edit>Selection>Fit Rectangle command so that it produces more predictable results.
Thanks to Philippe Carl, File>Import>Image Sequence no longer limits the number of files that can be imported to 40 when "Open as separate images" is enabled.
Thanks to Fred Damen, improved recording of the ROI Manager's "Open..." and "Save..." commands, and made the open(path) and save(path) methods public.
Thanks to Michael Schmid, the File>Import>Image Sequence command no longer creates excessive image IDs.
Thanks to Michael Schmid, added the FolderOpener.openProcessor() method, used by the FileInfoVirtualStack class.
Thanks to Norbert Vischer, fixed a bug that caused the Process>Filters>Convolve command to sometimes not be correctly recorded.
Thanks to Fred Damen, fixed a bug that caused a null pointer exception when the File>Import>Results dialog was canceled.
Thanks to Ved Sharma, fixed a bug that caused an invalid macro error when assigning a string value returned by a user defined function to an array element.
Thanks to Fred Damen, fixed a bug that caused the RoiManager.save() method to always return true.
Thanks to Ved Sharma, fixed a bug that caused the ROI Manager's "OR (Combine)" command to not work as expected if the first ROI was composite.
Thanks to Philippe Carl, fixed a bug that caused the File>Import>Image Sequence command to not work as expected when importing stacks and the "Open as separate images" option was enabled.
Thanks to Philippe Carl, fixed a bug that caused the Image>Overlay>Flatten command to not work with ROIs, or the ROI Manager in "Show All" mode, on composite images.
Thanks to Rodrigo Goncalves, fixed a bug that caused the File>Save As>Image Sequence command to display multiple error messages when the specified directory did not exist.
Thanks to Herbie Gluender, fixed a bug the caused the exit(msg) macro function to fail when the argument was a number or a call to a user-defined function.
Thanks to Jerome Mutterer, fixed a typo in OpenDialog.java that caused the GitHub version of ImageJ to fail to compile.
Thanks to Daniel Nebdal, fixed a bug that caused the Plugins>Macros>Edit command to not open ".py" and ".bsh" files.
Thanks to Remi Berthoz, fixed a bug that caused the Image>Type>RGB Stack command to not work correctly with RGB stacks that had multiple slices and multiple frames.
Thanks to Stein Rorvik, fixed a bug that caused the Property.setSliceLabel() macro function to sometimes not work as expected with single images.
Thanks to Ved Sharma, fixed a regression that caused the roiManager("Set Fill Color",color) macro function to fail when used with a text selection.
Thanks to 'natalia', fixed a 1.52p regression that caused FITS images to open flipped vertically.
Thanks to "J Xiong", fixed a regression that caused the particle analyzer to not work the same as it did in ImageJ 1.52 with binary images that were not thresholded and the "Black background" options was not set.
Thanks to Hyung-song Nam, fixed a 1.53f regression that caused menus to unexpectedly popup when using the "hand" tool to scroll through images.

Thanks to Jerome Mutterer, added the "Apply LUTs" checkbox to the command finder (Plugins>Utilities>Find Commands).
Thanks to Norbert Vischer, the current line number, or selection range, in Editor, Table or Log windows, is displayed in the status bar. The total number of lines is displayed after Select All.
Thanks to Norbert Vischer, ImageJ now corrects the orientation of phone camera photos. Does not work on Fiji because it is missing Exif_Reader.jar.
Improved the Plugins>Utilities>Benchmark command. It now suppresses subordinate status bar messages and displays subordinate progress bars as dots.
Thanks to Peter Haub, the particle analyzer displays "ParticleAnalyzer: threshold has not set; assumed to be min-max" in the Log window if it was not called from a macro and a threshold was not set.
Thanks to Laurent Thomas, File>Save As>Image Sequence, when "Use slice labels as names" is enabled, now supports file names as long as 111 characters, excluding the extension.
Thanks to Michael Schmid, ImageJ displays "horizontal" in the image info line of column average plots and "vertical" with row average plots.
Thanks to Jerome Mutterer, added the showStatus(message,options) macro function and the IJ.showStatus(message,options) method (example).
Added the Overlay.update(index) macro function.
Added the ImagePlus.setBorderColor() method, used by Image>Color>Split Channels to colorize image borders.
Thanks to Laurent Thomas, added the ImageStack.getShortStackLabel(n,max), Zoom.toSelection(imp), Zoom.set(imp,mag) and Zoom.set(imp,mag,x,y) methods.
Thanks to Herbie Gluender, fixed a bug that caused the status bar to stop being updated after activating an overlay selection.
Thanks to Fred Damen, fixed a bug with one slice stacks that caused the slice label to not be displayed on the image info line or in the Image>Show Info window.
Thanks to Antoneta, fixed a bug with the Flatten command that caused multi-point selections on stacks to lose counter information.
Thanks to Herbie Gluender, fixed a bug that caused unexpected overlay entries after running the particle analyzer with the "Add to manager" option in a batch mode macro.
Thanks to Norbert Vischer, fixed a bug that caused string functions added in ImageJ 1.52t (s.contains(), s.endsWith(), s.indexOf(), s.lastIndexOf(), s.lengths.startsWith()) to return a string instead of a number when used in an assignment statement.
Thanks to Robert Haase, fixed a bug with the roiManager("select",index) macro function that caused it to sometimes restore ROIs at the wrong position.
Thanks to Laurent Thomas, fixed a bug that caused the ContrastEnhancer.stretchHistogram() methoid to not work as expected with stacks.
Thanks to Michael Schmid, fixed a bug that caused WaitForUserDialogs to not be scaled on high-resolution screens.
Thanks to Stein Rorvik, fixed a macro interpreter bug that caused if statements using string functions to sometimes fail (e.g., "if (getTitle.length>10) ...").
Thanks to Norbert Vischer, fixed a bug that caused the first column of tables copied to the clipboard to be missing if the table did not have row numbers and the "Copy row numbers" option in Edit>Options>Input/Output was not enabled.
Thanks to Shayna Sosnowik, fixed a 1.53g regression that caused the "Properties..." command in the ROI Manager to not work as expected when changing the stroke color.
Thanks to Stein Rorvik, fixed a 1.53i regression that caused the str.trim() macro function to sometimes fail.

Thanks to Jerome Mutterer, added a "Run" button to Editor windows when the file name ends with ".ijm", ".js", ".bsh" or ".py".
The "Overlay Masks" option in the particle anayzer now displays masks in colors taken from the Glasbey LUT.
Thanks to J Xiong, added "Overlay" and "Composite ROIs" checkboxes to the particle analyzer (example).
Thanks to Michael Doube, added an IntProcessor class that provides support for signed 32-bit int images (example).
Thanks to Christian Tischer, the Recorder supports Python.
Thanks to 'Eljonco', the "ExpandableArrays" macro option is now enabled by default. Thanks to Peter Haub, added the String.pad(n,length) macro function.
Thanks to Wilhelm Burger, added the addEnumChoice() and getNextEnumChoice() methods to the GenericDialog class (example).
Thanks to 'davidC', added the ij.gui.HistogramPlot class.
Thanks to Stein Rorvik, added the ImageCanvas.setLongClickDelay() and Toolbar.setLongClickDelay() methods.
Thanks to 'Dr. Njitram', added the recordable SubstackMaker.run(imp,rangeOrList) method.
Thanks to Albert Cardona, modified the ImageJ.keyPressed() method so that, if the KeyEvent is consumed, it returns immediately.
Thanks to Wei Ouyang, replaced the "Duplicate..." command in the default image contextual menu with "Duplicate Image", which ignores any selection and duplicates the entire image.
Thanks to Stein Rorvik, fixed a bug that sometimes caused images to be incorrectly added to the Window menu.
Thanks to Stein Rorvik, fixed a bug that caused the File>Show Folder>Image command to not work with stacks opened using File>Import>Image Sequence.
Thanks to 'muniak' and 'mountain_man', fixed a bug that caused the Scaler.resize() method to return an image with a calibration of Inf x Inf.
Thanks to Stein Rorvik, fixed a bug that caused a list of 12 'w' letters to appear after the Group entry in the ROI Properties dialog when it was called from a macro.
Thanks to 'davidC', fixed a bug that caused batch mode macros that created hundreds of histograms to fail.
Thanks to 'chrk139', fixed a bug that caused the drawOval() and fillOval() macro functions to not work for images larger than 2^29 pixels.
Thanks to Laurent Thomas, fixed a bug where changing the group attribute from a group>0 to 0 in the ROI Manager>Properties dialog did not work as expected.
Thanks to Gilles Vanwalleghem, fixed a bug that caused the run("Reduce Dimensionality...") macro function to throw a null pointer exception in Fiji headless mode.
Thanks to Laurent Thomas and Hollandi Reka, fixed a bug that caused the ROI group of saved composite selections to not be restored.
Thanks to Martin Hohne, fixed a bug that caused the getValue("X") and getValue("Y") macro functions to not work as expected with line selections.
Thanks to J Xiong, fixed a v1.50 regression that caused the particle analyzer to not work as expected when when using the "Exclude on edges" option and a composite selection.
Thanks to Fred Damen, fixed a 1.53c regression that caused the GenericDialog.getFont() method to sometimes return null.

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 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.

hanks to Norbert Vischer, added support for plotting rectangles, vertical and horizontal bar charts, and vertical and horizontal boxes and whiskers. Use the Bar Charts and Shapes commands in the Help>Examples>Plots menu to see examples.
Thanks to Norbert Vischer, zooming in and out of plot windows using the "+" and "-" keys works better.
Thanks to Norbert Vischer, added the Help>Examples>Open as Panel command.
Thanks to Norbert Vischer, added the Plot.appendToStack() function. The Dynamic Plot and Dynamic Plot 2D macros in the Help>Examples>Plots menu and the Dynamic Plot script in the Help>Examples>javascript menu demonstrate how to use it.
Thanks to Norbert Vischer, added support for multi-line labels in plots. For an example, see Help>Examples>Plots>BarCharts.
Added the Help>Examples>Plots>Histograms example macro, which demonstrates how to use the new Plot.add("bars",x,y) macro function to draw histograms.
The File>Save As>Gif command now works with RGB images and stacks, saving stacks as animated GIFs (example1, example2).
The Plugins>Utilities>Control Panel now requires a double click to run a command.
Thanks to Stein Rorvik, when moving the mouse pointer, or creating a selection, on spatially calibrated images, the uncalibrated x and y pixel coordinates are shown in parenthesis in the status bar.
Thanks to Jerome Mutterer, the focus is reset to the prompt when either the backspace or delete key is pressed in the macro functions finder.
Thanks to Norbert Vischer, the close(pattern) macro function closes windows whose title matches 'pattern'. Non-image windows, like "Roi Manager" have to be specified without wildcards. For text windows, wildcards are allowed if 'pattern' ends with ".txt", ".ijm" etc. Use close(pattern, "keep") to close only unchanged windows.
Thanks to Michael Schmid, added the Recorder.fixString() method, which is used to escape strings passed to the recorder.
Thanks to Michael Schmid, the delete key on Windows keyboards can be used as a substitute for backspace as a shortcut for the Image>Clear command, for deleting ROIs from overlays and for deleting lines in Results Tables and in the Log window. In addition, the ',' key on european numeric keypads is mapped to the '.' key.
Thanks to Norbert Vischer, added the Plot.drawShapes() and Plot.drawGrid macro functions.
Thanks to Gregory Jefferis, fixed a bug that caused the run("Scale...", "...") macro function to fail in Fiji headless mode.
Thanks to Stein Rorvik, fixed a bug that caused the min/max constrast values to be lost when duplicating virtual stacks.
Thanks to Michael Schmid, fixed a bug that caused incorrect log x axis coordinates to be displayed at the bottom of plot windows.
Thanks to Andrew Shum, fixed a bug that caused the File>Batch>Macro and File>Batch>Virtual Stack commands to not be correctly recorded.
Thanks to Philippe Carl and Jan Eglinger, fixed a bug that caused the newArray() macro function to fail if there were multiple arguments and the first argument was not a number.
Thanks to Stein Rorvik, fixed a bug on Windows that sometimes caused strings to be pasted in the wrong position in text windows.
Thanks to Michael Schmid, fixed a bug that caused the Process>Filters>Variance command to sometimes generate negative values with 32-bit images.
Thanks to Tobias Starborg, fixed a bug that caused the Image>Stacks>Animation>Animation Options command to not work in batch mode macros.

Plot enhancements, thanks to Michael Schmid:
Plots saved as tiff or zip include the data, so the plot range can be modified (zooming, etc.) and the data can be listed after loading the plot from a file.
Changing the axis or label font size of a plot keeps the image size constant and modifies the plot frame size (previously, the plot frame size was constant).
Slightly more space for numbers at the left, enough for scientific notation. ImageJ switches to a smaller font if more significant digits are required.
Added Plot.getFrameBounds(x, y, width, height) macro function.
The default font for plots is now Arial, not Helvetica (Arial is available on more platforms).
When opening a plot on a computer where a given font is not available, try to replace fonts by similar ones. This should make the appearance on different platforms more similar.
The ImageProcessor getStringWidth() and getStringBounds() methods use the more accurate GlyphVector class.
Thanks to Norbert Vischer, the Edit>Selection>Straighten and Image>Duplicate commands work with rotated rectangle selections.
Thanks to Jerome Parent, added the Image>Stacks>Plot XY Profile command.
Thanks to Jerome Parent, added a "Show unit" checkbox to the Analyze>Tools>Calibration Bar dialog box.
Thanks to Stein Rorvik, newly opened editor windows are larger and, on Linux and Windows, are less likely to cover the main ImageJ window.
Thanks to Norbert Vischer, added a "Smooth if thresholded" option to the Wand tool dialog (example).
Thanks to Kenneth Sloan, added a recordable ZProjector.run() method (examples).
Thanks to Norbert Vischer, added the makeRotatedRectangle(x1,y1,x2,y2,width) macro function.
Thanks to Norbert Vischer, added the List.toArrays(keys,values), List.fromArrays(keys,values) and List.indexOf(key) macro functions.
Thanks to Max Leiter, fixed a bug that caused RoiListeners to not be notified when an ROI was created.
Thanks to Alvaro Folgado, fixed an OS X command injection vulnerability in the BrowserLauncher.
Thanks to Alison Walter, fixed a bug that caused the "Spline fit" checkbox in the "Line Width" dialog to convert angle selections to polygons.
Thanks to Chris Lamb, fixed a typo in MemoryMonitor.java where a constant that should have been 1024 was 1204.
Thanks to Norbert Vischer, fixed a bug in the Array.resample() macro function that caused it to throw an exception if the langth of the input was 0 or 1.
Thanks to John Loveland and Lukas Kvasnica, fixed a v1.51o regression that caused plugins that create virtual stacks without implementing the VirtualStack class to throw an exception.
Thanks to Tim Huang, fixed a bug that caused the Image>Overlay>Flatten command to not work correctly with high-resolution images.
Thanks to Norbert Vischer, fixed a bug with the Debug>Abort command in the macro editor that caused it to display a bogus error message.
Thanks to Stefan Helfrich and Azman Rashid, fixed a bug that caused ImageJ to not correctly read TIFF files created by the Bfconvert command line tool.
Thanks to Jan Eglinger, fixed a bug that caused the popup menu (e.g. right-click > Rename...) and the "Dev" menu tool to not get recorded.
Thanks to Sethur, fixed a bug that caused scroll wheel zooming in image stacks (enabled using control or shift key) to not work correctly.
Thanks to Steffen Schmidt, fixed a bug that caused scale bars to not be correctly positioned with large font sizes.
Thanks to Vanessa King and Jan Eglinger, fixed a bug that caused the "List" option in plot windows to sometimes not list all X columns when the columns differed in length.
Thanks to Carne Draug, fixed several problems related to building the ImageJ Debian package.
Thanks to Salim Kanoun, fixed a bug that caused overlay titles to be selectable when a new ROI was being constructed.
Thanks to Norbert Vischer, fixed a bug than caused the Analyze>Gels>Select Next Lane command to sometimes create duplicate plots.
Thanks to Michael Kaul, fixed a v1.51o regression that caused the ImagePlus.flatten() method to be much slower.
Fixed a 1.51e regression that caused the "Auto" buttion in the Brightness/Contrast dialog to not increase contrast with repeated clicks.

Released on 22 June 2017
When adding a hyperstack ROI to the ROI Manager, the channel position is set to 0 (display in all channels) if the display mode is "Composite".
Added the setOption("ConvertToMicrons",boolean) macro function. When this option is set, units in TIFF images are converted to microns if the pixel width is less than 0.0001 cm.
Thanks to Norbert vischer, worked around a bug in Java 8 on OS X that sometimes caused painting of GenericDialogs to be incomplete.
Thanks to Rainer Engel, fixed a bug that caused macros that passed variables using "&" notation to fail if they used the Process>Math>Macro command to process a stack.
Thanks to Philippe Carl, fixed a 1.51o regression that sometimes caused ImageJ to freeze on Windows when opening or processing images.

The ImageJ website (imagej.nih.gov/ij) will soon start using encryption incompatible with Java so sample images and updates are now downloaded from wsr.imagej.net and URLs used to open images and text files are redirected to mirror.imagej.net.
Thanks to Thorsten Wagner, added the is("global calibration") macro function.
Thanks to Philippe Carl, added the RoiManager.rename(index,name) method.
Thanks to Nicolas Cedilnik and Mark Hiner, fixed a bug that could cause an exception when saving a virtual stack.
Thanks to Kees Straatman, fixed a bug that caused the ROI Manager's "Multi Measure" command to sometimes not work as expected when the "append" option was used.
Fixed a bug that caused the "Decimal Places" field in the Analyze>Set Measurements dialog to be ignored after the value was set to zero.
Thanks to Stein Rorvik, fixed a 1.50d regression that caused duplicated images to lose their density calibration.

Added the Help>Examples sub-menu and an Examples menu to the text editor. When opening an example macro or script, hold the shift, control or alt key down to also run it. The examples are also available at wsr.imagej.net/download/Examples/.
The Wand Tool Options dialog (opened by double clicking on the Wand tool) now has a "Tolerance" slider that dynamically updates the selection.
Added the "NaN empty cells" option to the Analyze>Measurements Options dialog.
The Curve Fitter (Analyze>Tools>Curve Fitting), to avoid aliasing, will use more than 100 points to draw the fitted curve.
The Image>Hyperstacks>Hyperstack to Stack command now works with composite color images.
The Image>Stacks>Tools>Concatenate command maintains hyperstack calibration.
Added the Array.getSequence() macro function (example).
Added the add(shape,xpoints,ypoints), addLegend(labels), addLegend(labels,options), setColor(String) and getPlot() methods to the Plot class.
Added the ImagePlus.isThreshold() and ResultsTable.setNaNEmptyCells() methods.
Image>Show Info now displays the first 60 characters of UN (Unknown) Value Representation DICOM tags.
Fixed bugs that caused the Analyze>Measure command to not work as expected with line selections when "Limit to threshold" was enabled in Analyze>SetMeasurements.
Fixed a bug that caused the setSelectionLocation() and Roi.move() macro functions to sometimes not work with straight line selections.
Fixed a bug that caused the brush tool to sometimes not work as expected on Linux.
Fixed a bug that caused Process>Batch>Convert to throw an exception when converting stacks to TIFF format.
Fixed a 1.49t regression that caused the Image>Adjust>Canvas Size command to not work as expected with plot windows

The File>Import>Image Sequence command will now import a folder of multi-image TIFF files as a virtual stack.
The File>New>Hyperstack command draws the C, Z and T positions both in an overlay and on the images.
The recorder, when not in "Macro" mode, records Image>Color>Split Channels as "channels=ChannelSplitter.split(imp)".
Fixed a bug that caused the first point of a multipoint selection to not be visible on zoomed out images.
Fixed a bug that caused the paintbrush tool and Edit>Fill command to not work correctly on composite color images.
Fixed a bug that caused ImageJ to throw an exception when calculating the median on 32-bit images if the pixel count was zero.
Fixed a 1.49r regression that caused the particle analyzer to fail if "Limit to threshold" was enabled.

measurements done using the Set Measurements "Limit to threshold" option add two columns ("MinThr" and "MaxThr") to the Results table.
a progress bar is displayed when large images are resized.
the Image>Show Info command (press "i" as a shortcut) displays additional information, including the ImageJ version, java version, OS version, memory in use and the image size.
the ROI Manager's "Save..." command is faster and displays a progress bar.
the quality of montages created by Image>Stacks>Make Montage is better due to use of bilinear interpolation and averaging when reducing.
Added an "Average when reducing" option to the Process>Batch>Convert dialog box.
the macro editor aborts any existing macro before running or debugging another one.
The Image>Stacks>Plot Z-axis Profile command now works with line selections.
The macro editor replaces right curly quotes with standard double quotes.
fixed a bug that caused an exception to be thrown when selecting an image from the Window menu.
fixed a bug that caused GenericDialogs without "OK" buttons to throw exceptions.
fixed a bug that caused pasted image selections to sometimes become permanent before they could be moved.
fixed a bug that caused the OpenDialog.setDefaultDirectory() method to not work as expected on Windows with file paths that ended in slashes instead of backslashes.
fixed a bug that caused an exception to be thrown when measuring the perimeter of selections created by the Edit>Selection>Make Rectangular Selection Rounded command in Fiji.
fixed a bug that caused the Process>Batch>Convert progress bar to not work.
fixed a bug the caused the saveAs("Text",filepath) macro function to not work as expected if 'filepath' ended in ".csv".
fixed a bug that caused macro 'break' and 'continue' statements to not work as expected in 'for' and 'while' loops with inner loops.
fixed a 1.49q regression that caused the File>Import>Image Sequence command to ignore overlays.
fixed a 1.45 regression that caused the Histogram command to loss the ability to generate stack histograms of composite color stacks.

The File>New>Hyperstack command embeds the channel, slice, frame and stack index into the pixel data.
Thanks to Michael Schmid and Michael Doube, the 'invertY' calibration flag is now saved in TIFF headers.
The options of the ROI Manager's "Multi Measure" command are recorded if the Recorder is in "Macro" mode.
The Image>Color>Merge Channels command now deletes the source images after displaying the merged composite image.
The run("Subtract Background...","...") macro function no longer changes the default settings in the Process>Subtract Background dialog.
Added the Roi.copy() and Roi.paste() macro functions.
The Opener.openLut() method now works with URLs (javascript example).
Thanks to Francis OBrien, added the ChannelArranger.run() method (javascript example).
Added the IJ.getDir() method, as an alias for IJ.getDirectory().
Thanks to Chris Pudney and Michael Schmid, fixed a bug that caused the PARALLELIZE_IMAGES flag of the PlugInFilter interface to return incorrect ROIs when using non-rectangular masks.
Thanks to Kurt Bockhorst, fixed a bug that caused Image>Stacks>Images to Stack to sometimes not work correctly with inverted LUT images.
Fixed a bug that caused the Image>Color>Arrange Channels command to not work with overlays.
Thanks to Jan Eglinger, fixed a bug that caused the run("Quit") macro function to sometimes not work as expected.
Fixed a bug that caused extremely large images (e.g. 25000x25000 pixels) to not be displayed correctly because the minimum zoom of 3.1% was not low enough.
Thanks to Kees Straatman, fixed a bug that sometimes caused 8-bit images to be incorrectly converted to 16-bits.
Thanks to Christophe Deroulers, fixed a bug that sometimes caused the ROI Manager's "Translate" command to not work as expected.
Fixed a bug that caused the IJ.openVirtual() method to throw an exception if the file was not found.
Thanks to Curtis Rueden, fixed a bug that could cause a StackOverflowError exception on ImageJ startup on systems with three monitors.
Thanks to Michael Schmid, fixed a bug in the curve fitter that caused the RODBARD fit to not fit some data.
Thanks to Michael Schmid, fixed a bug that caused the Analyze>Tools>Curve Fitting command to sometimes not correctly scale plots.
Thanks to Jorge Valero, fixed a 1.49n regression that caused an exception when measuring an area out of the threshold limits in a 16 bit image and "Limit to threshold" was enabled in "Set Measurements".

Fixed a bug that caused ImageJ to incorrectly read 3 and 4 channel 16-bit planar TIFFs.
Fixed bugs that caused the setFunction() and setCTable() methods of the Calibration class to sometimes not work as expected.
Fixed a bug that caused the size of maximized windows to be reset when they were moved on Windows 7 and Windows 8.
Fixed a 1.49k regression that could cause the imageCalculator() macro function to fail when processing stacks in batch mode macros.
Fixed a 1.48 regression that caused 16-bit Zeiss SEM images to not open correctly.
Fixed a 1.49c regression that caused GIFs with color LUTs to open as RGB images.

Thanks to Tiago Ferreira, the Plugins>Utilities>Search command now displays "Double-click on a file name to open it" in the Log window header bar.
Added a "Keep after adding to overlay" option to the arrow tool options dialog box.
Thanks to Elyse Aurbach, Analyze>Calibrate supports four more calibration functions and displays better calibration plots.
Thanks to Norbert Vischer, added the debug("conditional") macro function.
Thanks to Ved Sharma, fixed a bug that caused the particle analyzer to always create a new "Summary of ..." table when processing stack slices.
Thanks to Tiago Ferreira, fixed a bug in the Overlay.activateSelection() macro function that caused it to ignore stack positions.
Thanks to Barry DeZonia, fixed a bug that caused Image>Stacks>Tools>Reverse to not work with virtual stacks defined in Imglib.
Thanks to C Heeney, fixed a bug in the PolygonRoi class that caused it to modify the contains of float arrays passed to it in the constructor.
Thanks to Sebastien Simard, fixed a bug that caused multi-line arguments passed to user plugins to be displayed in the Log window when ImageJ was in debug mode.
Thanks to Jerome Mutterer, fixed a v1.47 regression that caused command line options similar to "-Dplugins.dir=..\ImageJ" to not work as expected.
Fixed a bug that caused the paths returned by getDirectory("image") and getDirectory("macros") to be incorrect if the path specified in the "-Dplugins.dir=path" command line option ended in "plugins".
Thanks to Andrew York, fixed a bug that caused macros run from the command line to sometimes unexpectedly display dialog boxes.
Thanks to Alberto Duina and Gabriel Landini, fixed a v1.47t regression that caused an exception to be thrown if a string with a length less than 3 was entered into a dialog box and the recorder was running.