IDL Fixed Issues

This help article provides a recent history of fixed issues in IDL. See the following sections:

• IDL 9.1
• IDL 9.0
• IDL 8.9
• IDL 8.8.3
• IDL 8.8.2
• IDL 8.8.1
• IDL 8.8
• IDL 8.7.3
• IDL 8.7.2
• IDL 8.7.1
• IDL 8.7
• IDL 8.6.1
• IDL 8.6
• IDL 8.5.1
• IDL 8.5
• IDL 8.4
• IDL 8.3
• IDL 8.2.3
• IDL 8.2.2
• IDL 8.2.1
• IDL 8.2
• IDL 8.1
• IDL 8.0.1

IDL 9.1

Issue	Description
IDL-61635	In function graphics, displaying a plot with lots of points and a linestyle won't display the line: IDL now properly renders plot lines.
IDL-69103	Feature: Allow users to specify compression level with WRITE_PNG: Added COMPRESSION keyword to WRITE_PNG.
IDL-70652	IDL DicomEx Storage SCP service incorrectly requires a full IDL license: Removed the requirement for a full IDL license.
IDL-70695	Function graphics Legend would sometimes ignore the TRANSPARANCY keyword: This has been fixed and a FILL_COLOR property has been added.
IDL-70894	TS_SMOOTH handles NaN's poorly: A NaN keyword has been added to TS_SMOOTH.
IDL-70960	IDL's Shapelib library is out of date: The Shapelib library used by IDLffShape has been updated to the latest version.
IDL-71021	Better documentation for Family argument in Wavelet WV_CWT: The documentation for WV_CWT has been improved to include information about available wavelet functions and the Family argument.
IDL-71023	YAML_SERIALIZE fails on certain ASDF files: This was caused by ASDF/YAML files that had tag nodes without a value. IDL's ASDF/YAML routines now properly handle these by replacing the missing value with the string "null".
IDL-71063	On Windows, READ_TIFF will not handle filenames with special Unicode or UTF8 characters: QUERY_TIFF, READ_TIFF and WRITE_TIFF will now properly handle filenames with these characters on Windows platforms.
IDL-71064	Security vulnerability with the Eclipse JGit library in IDL Workbench: Upgraded Egit and JGit libraries to 6.7.
IDL-71070	IDL crashes when comparing a list and an array with a single element using Map with Lambda: IDL no longer crashes.
IDL-71073	Mac Arm: Java bridge fails to initialize when Workbench is started by double clicking on the Applescript: Java bridge now works properly for these cases.
IDL-71074	HttpRequest with secure https fails on Linux, Mac, and ENVI-only installs: HttpRequest now correctly locates the certificate file shipped in the appropriate IDL bin directory.
IDL-71076	Read_csv and String to double conversion error: If an error occurred in Read_Csv or IDLffJSON with type conversion, the error would be caught but the error state would not get cleared. IDL now correctly clears the error state.
IDL-71082	IDL's Shapefile world map data is out of date: IDL's shapefiles have been updated to more include more up-to-date country boundaries. See MapContinents for details.
IDL-71091	Bessel functions: BESELI, BESELJ, BESELK and BESELY need to doc that if N is not specified, then the default is N=0: This is now documented.
IDL-71094	IDLffShape does not handle "Logical" (FTLogical) attribute type: IDLffShape now handles both Logical (FTLogical) and Date (FTDate) attribute types. See IDLffShape for details.
IDL-71111	Zipping/unzipping some files can fail: Fix FILE_UNZIP to handle compressed files that are the same size as their uncompressed versions.
IDL-71112	Java Import Bridge ignores the user's IDLJAVAB_LIB_LOCATION shell environment variable setting in some cases: Now, if we don't find Java at the default location we will honor the environment variable.
IDL-71113	IDL 9.0 function graphics do not render line thickness properly when saving: IDL now properly renders the line thickness in saved graphics.
IDL-71118	H5_GETDATA unable to read a VLEN dataset: IDL now supports H5T_VLEN variables with zero-length arrays.
IDL-71120	Overly-large bitmaps in widget_tree can cause IDL to exit: Large widget_tree bitmaps now work properly.
IDL-71122	IDL Runtime Embedded License not allowing additional license acquisition from regular licenses: Fixed, check non-embedded licenses for a feature if it was not found in an embedded license.
IDL-71132	For the MAP function, if you do not set FILL_COLOR or set it to "white", the image changes when you switch on the continents or countries: Fixed, the white color is now displayed properly and the map does not change.
IDL-71133	JSON_PARSE cannot handle nonstandard unquoted NaN or Infinity: JSON_PARSE now handles NaN and Infinity values, and JSON_SERIALIZE has a new keyword to allow output.
IDL-71135	LIST::REMOVE and LIST::ADD were not allowing a string as a argument: This has been fixed.
IDL-71136	FILE_UNZIP followed by RESOLVE_ALL fails: IDL now properly compiles all required files.
IDL-71138	The PKG installer for arm64 Mac IDL was incorrectly requiring installation of Rosetta: The installer now no longer requires Rosetta.
IDL-71140	CW_FORM doesnt retain spaces in its GUI: IDL now properly keeps the spaces.
IDL-71142	MAPCONTINENTS clipping issue with polar projections: Fixed, the fill interval has been decreased to avoid broken polygons.
IDL-71146	WINDOW procedure with negative dimensions causes screen distortion on Linux: IDL now throws an appropriate error for negative dimensions.
IDL-71147	Bridge from IDL to Python 3.10 does not properly inherit the PYTHONPATH environment variable: Fixed, now allow environment variables to be picked up by the Python bridge.
IDL-71149	COLORBAR improperly rounds decimal labels from CONTOUR: IDL no longer converts colorbar labels to integers.
IDL-71167	IDL Help not working with Firefox on Mac or Linux: Help is now working properly with Firefox.
IDL-71168	HttpRequest was ignoring the Content-type in the HEADERS keyword: HttpRequest now allows users to override Content-Type.
IDL-71169	Dataminer was incorrectly using an evaluation license on Linux: Dataminer now works properly on Linux.
IDL-71172	MAKE_RT doesn't copy over standard DICOM libraries unless DICOMEX flag is used: Fixed, make_rt now automatically copies the standard DICOM libraries.

IDL 9.0

Issue	Description
IDL-15221	Menu items with separators cannot be destroyed: You can now destroy separator menu items and they are actually destroyed.
IDL-69163	MAP function will sometimes clip map grid labels: IDL will now resize the window margins to avoid clipping grid labels on maps.
IDL-70208	Using multibyte characters such as 확인 would cause WIDGET_TEXT to crash: IDL now correctly handles these characters.
IDL-70730	IMAGE function throws an error if one of the dimensions is 3: The IMAGE function now accepts arrays of 3xN or Nx3 and correctly displays the image.
IDL-70748	IDLnetURL should provide access to the HTTP response body. The new HttpRequest class provides this functionality.
IDL-70848	MAP function: If a map contained a point below the horizon, then PDF output would be empty. This has now been fixed.
IDL-70881	Antialiasing was not working for the PLOT function in IDL 8.8. This has been fixed.
IDL-70934	IDLnetURL: ability to set arbitrary CURL parameters. The new HttpRequest class provides this functionality.
IDL-70976	READ_DICOM is slow due to DICOMEx license check. IDL's new license mechanism is now significantly faster than before, which fixes the slowdown in READ_DICOM.
IDL-71019	On Windows, long filepaths (greater than 260 characters) did not work. IDL now accepts long filepaths when used with OPENR, OPENW, FILE_MKDIR, HDF5, PNG, and TIFF files.
IDL-71022	When comparing list items that contain structures, IDL would return false if the datatypes were different, even if the values were actually the same. IDL now returns true in these cases.
IDL-71027	An astute user noticed that the CONVOL function had a subtle bug where short integers at the boundary were being clipped to -32678 instead of the correct -32768. This has now been fixed.
IDL-71029	IDL crashes when indexing into a structure or dictionary field with a temporary variable and += operator. This has now been fixed.
IDL-71035	Calling REFORM with an undefined variable would return an indeterminate result, leading to crashes. Now, REFORM will throw the appropriate error for undefined input arguments.
IDL-71036	ToString method: In IDL 8.9, the ToString method was incorrectly changed to drop empty (null) strings. Now, the ToString method behaves as before - zero-length strings are preserved.
IDL-71047	IDL crash when using TRIANGULATE with colinear input points: In very specific cases, irregularly-spaced data could have colinear data points, and would crash TRIANGULATE. This has now been fixed.
IDL-71054	Image on a Map drops one row/column: Previously, when a function graphics Image was placed on a Map projection, the first row and column would be clipped. Now the entire image is displayed. If you had worked around the bug by padding your image with an extra row and column, you can now remove that padding.
IDL-71056	The MEAN and MOMENT functions had different behavior with a scalar input and with DIMENSION=1. Now, with DIMENSION=1, both functions simply return the scalar value as the result.

 

IDL 8.9

Issue	Description
IDL-69692	JULDAY and CALDAT were returning slightly inaccurate results - added MODIFIED keyword
IDL-69844	TEXT graphic was taking a very long time to render large number of inputs
IDL-69902	FILE_GUNZIP failed to read more than 4GB into a variable with BUFFER keyword
IDL-69913	I18N:FILE_ZIP didn't handle extended ascii characters correctly
IDL-69970	FILE_UNZIP was causing an error with Sentinel 2 data
IDL-70263	MAKE_RT was failing on Mac due to permissions on activate
IDL-70598	FILE_ZIP was not compressing folders correctly
IDL-70683	Java->IDL Export Bridge didn't support licensing modes in IDL 8.6+
IDL-70774	PRINT, PRINTF, STRING: FORMAT keyword had a memory leak
IDL-70804	WIDGET_PROPERTYSHEET was segfaulting IDL on Ubuntu 18+ & RHEL/Centos 7.9+
IDL-70805	When unpacking a .tgz file using FILE_GUNZIP, the size was growing rapidly.
IDL-70806	IDL’s FILE_UNTAR routine did not support subdirectories.
IDL-70842	.edit Editor tab focus behaved unexpectedly when another program is at a STOP
IDL-70865	Screen size and resolution returned by IDLDE and IDL command line were not the same
IDL-70866	IDL interpreter was halting at the wrong place after list/hash calls
IDL-70872	WIDGET_SLIDER default scroll wheel action was 3 units on Linux, when it used to be 1
IDL-70873	Could not execute MAKE_RT application from app on macOS Monterey
IDL-70902	Executing anything in IDL Workbench console while stopped at breakpoint caused editor to jump back to breakpoint
IDL-70903	WRITE_PNG should not be 32-bit limited --- could not write more than ~700 megapixels
IDL-70904	An array contained by a hash could not be properly subscripted
IDL-70908	With MacOS firewall enabled, user needed to "allow" IDLDE on every launch
IDL-70911	COM->IDL Export Bridge didn't support licensing modes in IDL 8.6+
IDL-70912	Implied print with floats produced invalid JSON
IDL-70918	.RUN was not working correctly in IDL 8.8.2
IDL-70930	HIST_EQUAL was returning incorrect results for values on the edge of the scale range
IDL-70938	IDL was crashing with LISTS and SAV files with structures containing null strings

IDL 8.8.3

Issue	Description
IDL-69692	JULDAY and CALDAT were returning slightly inaccurate results - added MODIFIED keyword.
IDL-69844	TEXT graphic was taking a very long time to render large number of inputs.
IDL-69902	FILE_GUNZIP failed to read more than 4GB into a variable with BUFFER keyword.
IDL-69913	I18N:FILE_ZIP didn't handle extended ascii characters correctly.
IDL-69970	FILE_UNZIP was causing an error with Sentinel 2 data.
IDL-70263	MAKE_RT was failing on Mac due to permissions on activate.
IDL-70598	FILE_ZIP was not compressing folders correctly.
IDL-70683	Java->IDL Export Bridge didn't support licensing modes in IDL 8.6+.
IDL-70774	FORMAT keyword had a memory leak.
IDL-70804	WIDGET_PROPERTYSHEET was segfaulting IDL on Ubuntu 18+ & RHEL/Centos 7.9+.
IDL-70805	When unpacking a .tgz file using FILE_GUNZIP, the size was growing rapidly.
IDL-70806	IDL’s FILE_UNTAR routine did not support subdirectories.
IDL-70842	.edit Editor tab focus behaved unexpectedly when another program is at a STOP.
IDL-70865	Screen size and resolution returned by IDLDE and IDL command line were not the same.
IDL-70866	IDL interpreter was halting at the wrong place after list/hash calls.
IDL-70872	WIDGET_SLIDER default scroll wheel action was 3 units on Linux, when it used to be 1.
IDL-70873	Could not execute MAKE_RT application from app on macOS Monterey.
IDL-70902	Executing anything in IDL Workbench console while stopped at breakpoint caused editor to jump back to breakpoint.
IDL-70903	WRITE_PNG should not be 32-bit limited --- could not write more than ~700 megapixels.
IDL-70904	An array contained by a hash could not be properly subscripted.
IDL-70908	With MacOS firewall enabled, user needed to "allow" IDLDE on every launch.
IDL-70911	COM->IDL Export Bridge didn't support licensing modes in IDL 8.6+.
IDL-70912	Implied print with floats produced invalid JSON.
IDL-70918	.RUN was not working correctly in IDL 8.8.2.
IDL-70930	HIST_EQUAL was returning incorrect results for values on the edge of the scale range.
IDL-70938	IDL was crashing with LISTS and SAV files with structures containing null strings.

IDL 8.8.2

Issue	Description
IDL-70817	Workbench instability issues occurred due to Java AdoptOpenJDK running with Rosetta on M1 Mac.
IDL-70839	List::Add inserted new items in wrong location with negative index as second argument.
IDL-70840	Allow List::ToArray(Dimension=N) to concatenate N-D and N-1 D arrays if first N-1 dimensions match.
IDL-70845	MEAN_FILTER documentation did not mention the default computation.
IDL-70847	Empty Hash classes could not be restored from IDL 8.8.1 save file.
IDL-70849	Empty List, OrderedHash, and Dictionary classes were not restored correctly from pre-IDL 8.8.1 save files.
IDL-70850	Session crashed if wildcard (*) with hash-array index syntax was used in a Hash or OrderedHash that contained an array of structures.
IDL-70859	Session crashed when trying to restore OrderedHash with 1 key in it from 8.7.3 save file.
IDL-70860	Session did not correctly save List/Hash objects if they were in the save file multiple times.
IDL-70861	Performance issues with HASH and 2D string array.

IDL 8.8.1

Issue	Description
IDL-60734 ID-69969	H5D_READ performance was slow.
IDL-69094	Allow user to get custom header information in IDL using QUERY_PNG.
IDL-69757	H5_PARSE failed to read in UTF8 encoded string data.
IDL-69901	Update the Windows-level file selection dialogs called by DIALOG_PICKFILE.
IDL-70726	The limitations of IDL Virtual Machine mode when working with IDL_IDLbridge were missing from Help documentation.
IDL-70727	Syntax coloring was not fully working when the workspace was switched in IDL 8.8.
IDL-70753	IDL 8.8 Workspace became corrupted if "Customize" was selected in Eclipse.
IDL-70764	Text edits in the text editors for IDL on Mac Big Sur were delayed.
IDL-70777	Text rendering issues were occuring in the MacOS Editor.

IDL 8.8

Issue	Description
IDL-68845	Launching the IDL Workbench on Macintosh prompted installation of Java v1.6.
IDL-70356	LMFIT documentation example did not converge.
IDL-70653	UTM projection description included the wrong information.
IDL-70658	The documentation example for cloning a DICOM file was not complete.
IDL-70666	IMSL_POISSON2D documentation had a typo in RHs_Bc parameter.
IDL-70687	INT_2D PQ/AB LIMITS arguments needed clearer documentation regarding ORDER keyword.

IDL 8.7.3

Issue	Description
IDL-70377	LA_EIGENQL documentation needed to clarify that for Hermitian matrices, IDL transforms the eigenvectors such that the first elements are real.
IDL-70378	Filled contour clipping issues on maps were introduced in IDL 8.7.2.
IDL-70537	Contour Function visual issue while using map_projection and /fill.
IDL-70641	Documentation for the AttributeStruct parameter of the method IDLffShape::SetAttributes had an incorrect hyperlink to an argument in another topic.

IDL 8.7.2

Issue	Description
IDL-70212	IDL crashed trying to use the python IDL bridge with Anaconda 4.5.4 with Python 3.6.5.
IDL-70215	TaskEngine occasionally deadlocked on shutdown.
IDL-70237	PACKAGE_FOLDER failed when calling IPM, /INSTALL.
IDL-70314	NCDF_ATTPUT called with an empty string attribute value generated an invalid HDF5 file.

IDL 8.7.1

Issue	Description
IDL-69561	Black boxes appeared where axis text should be on the save PLOT images on some Windows 10 systems.
IDL-69851	The "-V" flag on .COMPILE was undocumented.
IDL-69870	Saved IDL graphic text was not working properly in the latest Windows update.
IDL-69931	The Python to IDL Bridge was failing with the latest version of Anaconda 3 on Mac OS X 10.13.2.
IDL-70099	The WIDTH keyword documentation for the BOXPLOT function was incorrect.
IDL-70167	The LEGEND() function would cause an error if the LABEL keyword was a string array.

IDL 8.7

Issue	Description
IDL-69027	The Index tab in IDL Help was slow.
IDL-69670	The results of the binomial function did not match a user's expectations.
IDL-69747	The "idl" scripts from Mac OS X, Linux and Solaris MAKE_RT distribution were hard-coded to only work from the original product installation directory.
IDL-69799	A JSON_PARSE/SERIALIZE mismatch existed on Double values.
IDL-69845	RDPIX.pro did not work properly.
IDL-69834	A problem existed with 64-bit addressing.
IDL-69876	The IMAGE function issued an error on 3-band pixel data when x/y coordinates were also specified; they also needed to be reversed.

IDL 8.6.1

Issue	Description
IDL-27165	On Windows, DIALOG_PICKFILE with /MULTIPLE had a limit of 32767 characters.
IDL-60179	Adding numbers after double quotes did not work properly.
IDL-62760	Function graphics TeX syntax did not work on non-English systems.
IDL-69669	IDLgrPDF could not set DIMENSIONS during Init.
IDL-69705	IDL crashed when using SMOOTH with non-square arrays and edge keywords.
IDL-69713	The IDL Workbench deleted files when files were dragged from the Navigation Menu to the command line.
IDL-69714	The DataMiner installer wiped away other previously installed drivers.
IDL-69716	Entering a named string variable into the LAMBDA function caused an error.
IDL-69732	A typo with the ASSOC data file caused IDL to crash.
IDL-69750	H5_PUTDATA failed under certain use cases.

IDL 8.6

Issue	Description
IDL-68887	A mismatch in IDL's wrapper code between the input variable and the output dimensions caused a segmentation fault when using NCDF_VARGET. This routine now works correctly with the user's data file.
IDL-69346	The IDL OpenSSL library has been upgraded to 1.0.2h; the IDL curl library has been upgraded to 7.49.1.
IDL-69022 IDL-69451 IDL-69491	Various issues with plot legends have been fixed, including sizing with non-ASCII characters, the number of plot symbols, and vertical/horizontal alignment.
IDL-69476	IDL crashed when NaNs were passed to the QHULL procedure. IDL now throws an error if QHULL encouters NaN values.
IDL-69479	POLAR_CONTOUR failed with double precision data.
IDL-69485	The Workbench seemed to ignore Java CLASSPATH. IDL now correctly reports the value of the "java.class.path" property.
IDL-69493	Object cleanup cleared the math error status. IDL will no longer clear the math error status when returning from a user's cleanup method.
IDL-69501	MAKE_RT on Mac OS X used the wrong path. IDL no longer calls "xterm -e", and MAKE_RT will now run properly.
IDL-69502	The BUTTERWORTH function uses much less memory and is significantly faster.
IDL-69506	You can use CALL_FUNCTION, CALL_PROCEDURE, and EXECUTE with the Python-to-IDL Bridge.
IDL-69520	TIMESTAMP and SYSTIME(with /JULIAN) have the correct fractional seconds. Also, SYSTIME will now work properly beyond the 19 January 2038 UNIX millenium bug.
IDL-69527	Content Assist can process Unicode characters.
IDL-69535	The List::ToArray method works correctly with arrays of structures.
IDL-69539	VECTOR now works correctly with three element arrays.
IDL-69541	READ_CSV now properly handles empty columns.
IDL-69556	The IMAGE function now properly handles images with NaN values.
IDL-69571	Adding attributes to a NCDF file caused IDL to crash. This was only a problem when adding the _FillValue attribute while in "REDEF" mode. It is due to a NetCDF library bug. The NCDF_ATTPUT documentation was updated with this information. Workaround: Be sure to set _FillValue during the initial file creation.
IDL-69583	SURFACE with ZLOG plotted off of the canvas space. The SURFACE, PLOT3D, and CONTOUR functions now handle the ZLOG property.
IDL-69603	The IDL to Python bridge failed on Mac OS X 10.11. IDL now ships with a "setup.py" script that automatically sets the proper library paths, and avoids having to set the DYLD_LIBRARY_PATH. See the IDL Python bridge documentation for install instructions.
IDL-69605	The MAP function now correctly displays polar stereographic projections.

IDL 8.5.1

Issue	Description
IDL-5479	IDL's HDF routines now support VGROUP attributes.
IDL-68785	IMSL routines work properly on Windows.
IDL-69428	Routines work properly with more than 255 parameters.
IDL-69429	The IDL Python bridge now works properly with WinPython.
IDL-69437 IDL-69438 IDL-69439	The IDL Python bridge behaves better on Linux platforms.
IDL-69442	N and V are no longer converted to integers in binomial.pro.
IDL-69446	The Workbench launches properly when double-clicking .pro files in Windows 10.
IDL-69458	WRITE_CSV with the TABLE_HEADER keyword now produces correct output.
IDL-69473	Previously, if your array contained NaN values, and you did not set the /NAN keyword, MIN or MAX would sometimes return NaN as the result and other times would return a valid value, depending upon the location of the NaN's in the array. Now, IDL always ignores NaN values and returns the correct minimum or maximum.

IDL 8.5

Issue	Description
IDL-69187	Attempting to use GRIB_GET_VALUES() with GRIB2 files crashed IDL on Linux. GRIB_GET_VALUES now works properly on all supported platforms.
IDL-69210	IDLnetURL::GetFtpDirList works properly on all FTP servers.
IDL-69220	The Java bridge was not configured properly when running 32-bit IDL from a 64-bit installation. The software installer builds a Java bridge configuration file specific to 32-bit or 64-bit platforms. For a 64-bit installation, the Java bridge is configured for 64-bit Java. When running 32-bit IDL from a 64-bit installation, the Java configuration file does not work and IDL issues an error message that it cannot initialize the Java bridge.
IDL-69244	The axes ranges for DENDRO_PLOT have been fixed.
IDL-69280	Previously, for FFT, if you used both the CENTER and DIMENSION keyword, then IDLwould shift the center of all dimensions, including those which were not undergoing the FFT. Now, when both CENTER and DIMENSION are used, FFT only shifts the center of the dimension given by DIMENSION.
IDL-69316	On certain Windows systems, when shell extensions such as Tortoise or iCloud are installed and set to a different locale, then calling DIALOG_PICKFILE would change IDL's locale. IDL now automatically sets the locale back to its default value before returning from DIALOG_PICKFILE.

IDL 8.4

Issue	Description
IDL-54289	You can now specify a non-default install location for FLEXlm.
IDL-65681	If you shifted a Mercator map projection by 180 degrees lon, part of the image disappeared. In new graphics, creating an image on a map should no longer clip the image.
IDL-67170	Added a new BIGTIFF keyword to WRITE_TIFF, which allows creation of large TIFF files.
IDL-68766	IDL correctly performs a .RESET on the XML DLM.
IDL-68767	IDL correctly reads scalar values in NetCDF quality flags.
IDL-68912	The graphics SAVE method failed on systems without an X server. When using new graphics with /BUFFER on systems without an X server, the SAVE method now works correctly.
IDL-68972	New graphics MAPCONTINENTS could output strange lines in Antarctica. IDL no longer draws the unwanted line through the south pole.
IDL-68989	IDLitVisPolygon respects the user's property setting for SHADING.
IDL-68990	IDLitVisAxis respects the user's property setting for TICKLEN.
IDL-69029	IDL automatically refreshes the plot when using DATA RANGE in IPLOT.
IDL-69037	For Direct Graphics postscript output with device fonts, the Y title used Greek letter symbols. For device fonts, IDL now switches back to normal fonts after outputting exponential notation.
IDL-69060	Successive calls to the Window::Save method with PDF and /APPEND became slower. The new graphics SAVE method now has a MEMORY keyword which prevents writing out intermediate pages.
IDL-69078	Using ( ) to index an array within an object caused IDL 8.1 save files to fail with IDL 8.3. You can now properly restore SAVE files that contain parentheses to index an array within an object.
IDL-69082	IDL now reads GRIB files from a network drive.
IDL-69101	LINBCG returns the correct results for a huge system of equations (>90000).
IDL-69112	You can now specify arrays of colors for the COLOR, FILL_COLOR, and FONT_COLOR graphics properties.
IDL-69124 IDL-69125	The IDL/ENVI Suite Installer works correctly on Windows 7.
IDL-69135	The ROT function works correctly with one-element input arrays.
IDL-69137	IDL now uses ULONG64 data types for min and max operators.
IDL-69139	MATRIX_MULTIPLY now uses multi-threading when one or both arguments are vectors.
IDL-69145	IDL no longer arbitrarily changes the title bar label when drawing a new graphics item to WIDGET_WINDOW.
IDL-69174	If a key is added more than once in ORDEREDHASH, IDL now keeps the latest value.
IDL-69187 IDL-69202	IDL no longer crashes when using GRIB_GET_VALUES with GRIB2 files.
IDL-69191	Using MAKE_ARRAY with the INCREMENT keyword (or using the [m:n:i] syntax) works correctly.
IDL-69192	Attempting to restore certain compressed code Save files could fail. This issue only occurred for files with a compressed length that was a multiple of 4096 (Unix) or 8192 (Windows). IDL now correctly restores these files.
IDL-69193	ISHFT works correctly with ULONG and ULONG64 data types.

IDL 8.3

Issue	Description
IDL-65808	On Windows platforms, the ALL_EVENTS keyword now works as it does in UNIX platforms, returning cell events with keyboard arrow navigation.
IDL-64864	On Windows and Solaris, OPeNDAP Functionality now works with NetCDF.
IDL-46816	On some systems, the IDL installation program exited with "Error 1719. Windows Installer service could not be accessed. Contact your support personnel to verify that it is properly registered and enabled." This error has been fixed.
IDL-62902	Updates to Flexlm 11.11.1.1 fixed issues with licensing on Fedora 15 and RedHat 6.21 platforms.
IDL-68647	IDL crashed upon exiting or when using graphics. This issue was caused by a bug in the glibc libraries. You may need to update your glibc library, or update to RHEL 6.3 or 6.4 to solve the problem. See http://rhn.redhat.com/errata/RHBA-2013-0279.html for more information.
IDL-66840	H5D_WRITE on Macintosh 64-bit can now write large datasets.
IDL-68745	Saving to a PDF or EPS file now produces correct lines and text, and no longer clips.
IDL-68883	The Dataminer installer now correctly populates the ODBC driver registry settings. Previously, you would have to manually modify the Windows registry.
IDL-68399	IDL_IDLBridge and o->EXECUTE /NOWAIT memory leaks have been fixed.

IDL 8.2.3

Issue	Description
IDL-48550 IDL-60996	The STATUS Keyword for EXIT now works as designed in IDL Workbench, returning the correct EXIT status code.
IDL-48917	Addressed performance issues when launching iTools from Workbench vs. the IDL command line.
IDL-66004 IDL-68582	X graphics dependencies have been removed for /BUFFER.
IDL-66935	Subversion (SVN) plugin installation now completes successfully on Macintosh and Linux.
IDL-67564	Top level base widget remains intact after deleting a WIDGET_WINDOW.
IDL-68079	ErrorBar cap sizes remain constant regardless of zoom factor on graphic.
IDL-68168	Added SUBGRIDSTYLE property to IDLgrAxis and New Graphics so that minor and major tickmarks can have different styles.
IDL-68330	Automatic Gridding of Data in CONTOUR() on MAP() resolves issue of jagged contours in New Graphics.
IDL-68351	BOX_AXES keyword in MAP function now rendering correctly for polar stereo projections.
IDL-68424	HASH function now allows for [*] and [0:-1] indexing in overloadBracketsLeftSide.
IDL-68461	Longitude and Latitude labels now rendering correctly in the MAP function.
IDL-68586	SetData now allows for the updating of a single point in PLOT3D.
IDL-68553	MAP_PROJ_FORWARD now rendering polygons correctly when they are >= 180 east of the center of the map.

IDL 8.2.2

Issue	Description
IDL-46839	IDL has been updated with IMSL for 64-bit Windows.
IDL-48058	The VALUE_LOCATE() function now allows one-element arrays and scalars for the input vector.
IDL-60797	On Windows platforms, attempts to open a DICOM file located in the Reproduce directory caused IDL 8.x to crash when using READ_DICOM(dicomex=0) or by the use of IDLffDICOM directly. This issue has been fixed.
IDL-63891	The LOCATION keyword for the AXIS() routine now allows for input independent of the data.
IDL-66297	Added the ability to update RGB_TABLE and RGB_INDICES on the CONTOUR object.
IDL-67618	Setting the LIMIT property with IMAGE() could make images disappear. If LIMIT is set or retrieved on an IMAGE, it is now retrieved from the actual MAP, not the image's map projection.
IDL-67647	Updated GAUSS2DFIT when using the MASK keyword to exclude NaNs when performing calculations.
IDL-67659	PLOT() caused errors when using [XYZ]TICKUNITS with an array. Updated the [XYZ]TICKUNITS keyword on the PLOT function to handle multiple units.
IDL-67665	In certain situations, PDF output did not match the colors on the screen. This has been addressed.
IDL-67775	Updated WRITE_CSV and READ_CSV to handle quote characters within strings.
IDL-67827	With large datasets, SWAP_ENDIAN routines did not process correctly. Updated to process datasets greater than 4GB.
IDL-67848	Updated the EXTRACT keyword to LIST to handle 1-element arrays.
IDL-67885	Plot lines could appear with different thicknesses while zooming out.
IDL-67918	Updated VERT_COLORS keyword to PLOT to handle more than 256 elements.
IDL-67992	IDLanROIGroup caused IDL to shut down. Updated to handle greater than 1024 IDLanROIs.
IDL-68042	Printing from PLOT() in runtime or command line IDL session sometimes resulted in oversized output.
IDL-68059	Updated the THICK keyword to IDLgrPLOT to handle values higher than 1 correctly.

IDL 8.2.1

Issue	Description
IDL-60320	The HISTOGRAM keyword does not work correctly on the PLOT function when log scale is used.
IDL-61635	Line style setting does not display in a saved plot.
IDL-62026	Error creating large NetCDF files. NETCDF3_64BIT keyword was added.
IDL-63727	RPC server crash using IDL_RPCOutputCapture.
IDL-63891	Need to specify AXIS locations (left, right, top, bottom of plot) without using data coordinates.
IDL-64070	Error on Macintosh if the terminal window size is too narrow.
IDL-64233	Problems with the STRIDE keyword in NCDF_VARGET.
IDL-65603	Allow IDL Graphics keywords to be abbreviated.
IDL-65734	IDL Graphics PLOT windows do not automatically resize to the size of the plot.
IDL-66414	The PLOT method SetData does not allow scalars to be set.
IDL-66755 IDL-66756	The POLYGON function incorrectly closed borders.
IDL-66769	Errors in IDL Graphics using CURRENT and ORDER keywords.
IDL-66791 IDL-66793 IDL-66802	Licensing problems on Macintosh.
IDL-66886	The MAPGRID object is not retrievable when the NAME is set on the MAP function.
IDL-66905	TIFF files written with WRITE_TIFF cannot be read with external software on Windows.
IDL-67028	The IDLgrAxis object does not display the x axis with a line thickness greater than two.
IDL-67038	IDL Graphics display incorrectly after two consecutive rotations.
IDL-67042	The PLOT function sometimes displays thick lines incorrectly.
IDL-67099	On Macintosh, IDL Graphics does not remember the save directory.
IDL-67461

IDL 8.2

The IDL 8.2 release did not have any fixed issues, only new features and enhancements.

IDL 8.1

The IDL 8.1 release did not have any fixed issues, only new features and enhancements.

IDL 8.0.1

Issue	Description
IDL-54998	Map grid and continent outlines now appear correctly when plotted across the date line. (This fix applies only to IDL graphics, not Direct Graphics.)
IDL-55799	In IDL 7.1 and 8.0, the IDLgrWindow RESOLUTION property was hard-coded to 72 DPI. For 8.0.1 on Windows platforms, this value is now taken from the Windows DPI setting. This allows point sizes set in IDL object graphics to match other applications on Windows platforms. Because of the change in font size, you may need to adjust any font sizes you have set in graphics programs.
IDL-58077	The 64-bit Java Virtual Machine (JVM) for 64-bit Windows was not properly handling low memory conditions. This problem was not associated with IDL. If your memory runs low, increasing your page file size may help. We suggest setting an initial page size of 1.5 times the physical RAM and a maximum page size of 3 times the physical RAM.
IDL-59612	The Java Virtual Machine (JVM) was not allocating large enough memory blocks for the IDL Workbench. This has been fixed for UNIX platforms. For Windows platforms, the arguments for the JVM were changed to allow allocation of 128 MB heap blocks.
IDL-59192	When using the C_LINESTYLE keyword with the CONTOUR function, the linestyle is now honored if the keyword value is a scalar or has fewer elements than the number of contour levels. A similar problem with the C_THICK keyword has also been fixed.
IDL-59242 IDL-60158	HELP now returns the number of elements if there is more than one element. If a single argument is provided to HELP, and it is a structure, then HELP automatically displays the structure information without having to set the STRUCTURES keyword.
IDL-59553	The PLOT title displayed in the wrong location with logarithmic axes.
IDL-60209	BARPLOT did not handle logarithmic axes.
IDL-60471	PLOT3D, ERRORPLOT, and SURFACE with /OVERPLOT did not correctly display with logarithmic axes.
IDL-60741	When values less than or equal to 0 were present, logarithmic axes were not honored.
IDL-59554	The title of a SURFACE plot no longer changes position when a CONTOUR plot is overplotted.
IDL-59601	Japanese characters are now saved correctly to PDF files.
IDL-59732	You can now successfully call a method on a dereferenced pointer variable: lst = list() p = ptr_new(lst) *p->add, 1 *p.add, 2
IDL-59742	You can now insert a legend in iTools, either using the INSERT_LEGEND keyword or through the Insert > New Legend menu item.
IDL-59774	IDL now allows subscript notation to be used as long as it evaluates to a scalar object reference: obj = OBJ_NEW('IDLitComponent') o = [obj] PRINT, o[[0]].name
IDL-59816	Even with garbage collection disabled, code with millions of pointers will run slower in IDL 8.0 than earlier versions. This has been fixed – if you disable garbage collection for all heap variables, then your code should run at the same speed in IDL 8.0.1 as it did in earlier versions. Note that if reference counting is disabled for all heap variables, then the reference counts will not be incremented or decremented. If you then re-enable reference counting, any existing heap variables may be unexpectedly destroyed.
IDL-59946	The FOREACH operator correctly assigns a scalar value to the element: FOREACH x,[1] DO HELP,x IDL returns: X INT = 1
IDL-59955 IDL-60022 IDL-60631 IDL-60810 IDL-60205	IDL automatic garbage collection now correctly destroys objects when the last reference to the object is deleted.
IDL-60104	You can now dereference an unnamed pointer expression. For example: PRINT, *(PTR_NEW(5)) IDL returns: 5
IDL-60107	FOREACH caused loop errors or crashed in IDL under certain conditions.
IDL-60109	FOREACH did not elegantly handle an empty list (!NULL vector).
IDL-60160	Using parentheses notation "( )" to reference an array within an object method caused a syntax error. This problem has been corrected, with the following exception: if an object has an internal array and a method function that both have the same name, you cannot reference the array field inside an object method using the older parentheses notation because IDL does not know at compile time if you are referencing the object array or the object method function. We suggest you use the bracket notation "[ ]" when referencing an array.
IDL-60168	The IDL 8.0 FLEXnet license manager service on Mac OS X started and stopped repeatedly and caused IDL to run in demo mode when a license was available. The license manager service now runs continuously.
IDL-60170	Issuing the .FULL_RESET_SESSION command re-enables automatic garbage collection for pointers and objects if it was previously disabled.
IDL-60178	You can now restore IDL 8.0 SAVE files that include scalar and array byte variables in previous versions of IDL. Earlier versions of IDL may have problems restoring 8.0 SAVE files that include byte arrays greater than 2147483647 bytes.
IDL-60275	In IDL 8.0, a change was made to ON_ERROR to print less information than in previous versions. In IDL 8.0.1, ON_ERROR, 1 has been changed back to its original behavior: ON_ERROR, 1: Print the current program stack, and then return to the main program level and stop. ON_ERROR, 2: Return to the caller of the program unit that called ON_ERROR, then stop and print the program stack from the caller up to the main program level.
IDL-60324	You can now call the N_TAGS function on a new object reference from inside an object method: PRINT, N_TAGS( OBJ_NEW() )
IDL-60345	The H5F_OPEN and H5F_CREATE functions now work correctly after a previous call to H5_CLOSE.
IDL-60747	The FOR loop behavior was changed to check the loop counter prior to incrementing. This avoids situations that caused infinite loops around the minimum and maximum values of signed variable types. The behavior for unsigned types is unchanged.