Octave 4.2.1 (64-bit)

What's new in this version:

- doc: Fix differences between example code and run time results
- Fix opengl “invalid operation” when zooming
- doc: provide complete examples in plotting documentation
- doc: Overhaul Java interface description
- doc: Add documentation for hex and binary prefix and _ separator
- Fix incorrect handling of 0b binary numbers in complex constants
- Guarantee returning std::string from tilde_expand functions
- Workaround segfault in file_stat
- Better documentation of *fcn properties
- genpropdoc.m: document more graphics properties
- doc: Fix build of docs broken in sub2ind
- always fork and exec when starting the gui
- maint: add classdef test files from cset
- print.m: fix regression with -append option
- version.m: document that -release returns an empty string
- Don’t display legend, colorbar, and annotation axes coordinates
- doc: Remove trailing "n" from sleep and usleep docstrings
- fix settings update for existing editor tabs (regression from b3ced5e3cebb)
- acinclude.m4: Correct test for SetPlaceHolderText
- configure: use the correct flags when testing for the CXSparse library version
- __run_test_suite__.m: fix typo in return values
- qp.m: Fix regression with incorrect vector dimensions
- make editor save its widget settings again when octave quits
- Prevent infinite loop in global documentation search
- connect execute command signal in editor constructor
- connect editors execute command signal to the required slot
- check if input is class method before declaring it unimplemented
- doc: Expand documentation for cast
- doc: Correct two entries in Table 34.1
- oop.txi: Improve table formatting
- Workaround segfault when an error occurs while printing
- doc: Fix ## in middle of docstring/comment lines
- doc: Reword documentation about subplots in 15.2.4
- doc: Update unimplemented list of functions and where to find them
- axis.m: Do not set plotboxaspectratio to 0
- help.m: Return valid list of keywords for --list
- don’t rethrow exception in destructor
- rethrow octave::exit_exception
- doc: Don’t use @code in @deftypefn because it expands badly in plain text format
- Update appdata.xml to follow conventions
- mexproto.h (mxAssert, mxAssertS): ensure operator precedence
- compare_plot_demos: fix spurious link to next page
- compare_plot_demos: fix HTML syntax, simplify output, remove external deps
- Calculate error in solution for ode solvers correctly
- doc: Add more depth to explanation of ~ function argument
- Use GetModuleFileName for getting octave path in windows
- Use C++ updaters for labels color
- distinguish elements vs. bytes in fread
- doc: Add more seealso links between docstrings
- use correct dimensions for liboctave += and -= matrix operators
- fix cut and paste error in sparse matrix solver
- doc: Review Appendix A, External Code Interface, of manual
- fminsearch.m: Fix error in guarded_eval
- Move frame2im and im2frame to image/ directory
- doc: Document nargout=0 calling mode for ode23, ode45
- Fix undefined return argument for more than 2 outputs from ode solver
- CITATION: Use and instead of comma to separate author names
- CITATION: Fix accent for Søren in BibTeX entry
- Fix inv for hermitian matrices (bug introduced in 5ce959c55cc0)
- doc: Correct documentation for javaclasspath file (bug #49873)
- Fix gzip for certain types of gzip files
- Fix typo in liboctave version info
- Initialize ODE Event function with start time
- languages/de_DE.ts: Fix spacing and punctuation
- allow configure test to succeed without implicit fcn decls
- gnulib: import fix for link.m4
- allow external docstrings from .oct files to be found again
- don’t require semicolon between property list elements
- Fall back to Octave’s regular display method for class objects without a display method
- exit with non-zero status if parsing or evaluation of --eval code fails
- display.m: Correctly display output for non-class objects
- Don’t run publish.tst unless OSMESA or gnuplot are available
- doc: Rewrite parts of Introduction chapter
- doc: Rewrite docstrings for sub2ind and ind2sub
- doc: Small fixes to docstrings
- doc: Update documentation for norm, normest, normest1, condest
- doc: Update docstring for condest
- find help for function aliases again
- legend.m: backport cset 7184b4516a68
- doc: Add programming note to caxis docstring
- axis.m: Replace call to non-existent function clim with caxis
- doc: Update documentation for axis
- doc: Update documentation for [xyz]lim.m
- preserve lasterror info on rethrow
- light.m: Update docstring
- Change text describing demo plots to reflect new ColorOrder
- norm: fix input validation tests
- norm: fix error in input argument validation leading to segfault
- doc: Update month of TeX title page
- doc: Clarify inputs and outputs for rgb2hsv