Log message:
latexmk: update to 459.

From v. 4.56 to 4.57
  Correct problem that in calculation of md5 checksum, an error
    sometimes occurs about malformed utf8 characters.  This can happen
    if the environment variable PERL_UNICODE is set.
  Add configuration variable $bibtex_fudge to allow to choose
    whether to use the fudge that made bibtex run correctly when
    an output directory (or aux directory) is specified.  (A
    planned future version of bibtex in TeXLive will not need
    the fudge.)

From v. 4.57 to 4.59
  Deal with double quote ('"') characters in files on command line to
    correspond to behavior of tex programs.  Remove balanced pairs,
    and give fatal error for unbalanced double quotes. (Note MiKTeX's
    tex programs simply remove unbalanced quotes.)  In all cases, the
    '"' character is not allowed in a filename read by tex and
    friends.
  Give fatal error when name of tex file on command line is either not
    allowed by tex and friends are gives problematic behavior.
  Use TEXINPUTS as search path for source files for custom
    dependency.
  Only give warning about differing expected and output filenames when
    the extensions differ.  All other cases gave only false positives.
  Do better to ensure xelatex gets its -no-pdf option.

Log message:
latexmk: update to 456.

From v. 4.55 to 4.55a
  Add option that latexmk returns a non-zero status code when
    the final run of (pdf)latex gives warnings about undefined
    references or citations or about multiply defined references.
  Implement $warning_cmd to allow a visual cue for these situations in
    pvc mode (in addition to the current possibilities for
    $compiling_cmd, $success_cmd and $failure_cmd).

From v. 4.55a to 4.56
  Correct parsing of biber's log file.
  Implement $warning_cmd.
  Deal correctly with situation that files reported in the .fls file
    as INPUT or OUTPUT files no longer exist at end of run. These
    files aren't true source files or generated files from latexmk's
    point of view.  Such cases can arise from a bug in the TeX
    engine (as with lualatex in TeXLive 2016/2017).  They can also
    arise when temporary files are created, read and deleted during
    a run (as with the minted package).
  Update example latexmrc file for pythontex.
  Better error message when .bib file(s) not found.
  Better handling and diagnostics when names of expected and actual
    names of .log disagree.
  In particular, there is some automatic reconfiguration when .log
    file is not in expected place (e.g., because $aux_dir is different
    to $out_dir, but TeXLive is used, so -aux-directory option for TeX
    engines isn't supported).
  Fix problem of .bib files sometimes not being found by bibtex when
    latexmk runs under msys and -outputdirectory is specified.
  Add use of environment variable LATEXMKRCSYS to specify system rc
    file.

Log message:
latexmk: update to 455.

From v. 4.54c to 4.55
 Correct bug that $search_path_separator wasn't defined under msys.
 Ensure that all configuration variables do have sensible default
   definitions (which wasn't always the case previously).
 Allow optional timeout in pvc mode after a period of inactivity.
   (See documentation for -pvctimeout option.)
 Compensate for problems caused by time offset between system time on
   system running latexmk and file times on remote file system.
   (It caused wrong behavior when a document uses biber, MiKTeX
   is used, the aux_dir is on a remote file system, and the system
   time on the host of the file system differs from the system time on
   the system running latexmk.)

Log message:
latexmk: update to 454c.

From v. 4.54 to 4.54c
 Work-around for when bsd_glob is not available on old installations of
   Perl.  (Note that with these old installations, clean-up operations
   may not work when file or directory names contain spaces.)

Log message:
latexmk: update to 454.

From v. 4.52c to 4.54
  In deps_list, correct bug in identifying generated files.
     Otherwise, generated files could have been identified as true
     source files.
  Remove insertion of name of deps file in list of targets in deps file.
  Don't send to screen deps info in deps mode (unless diagnostics on).
  Correct ordering of list of options given by -help.
  Fix incorrect deletion of non-generated aux files.
  Optimize away current directory string in $out_dir and $aux_dir.
  Make compatible with future versions of Perl where File::Glob's glob
    function won't exist.
  Add extra value 1.5 for $bibtex_use, with corresponding option
    -bibtex-cond1; this treats bbl files as conditionally precious in
    cleanup operations, depending on the existence or non-exisitence
    of bib files.
  When running bibtex, ensure that the change in search paths is made to work
    around deficiencies in bibtex is local and does not affect other
    programs.
  Collection of timing information now works in silent mode.
  Set better default previewers for MSys.
  Restore default of $analyze_input_log_always to 1.
    This restores the default detection of certain constructs for dependencies
    for input files in the .log file. See the comments on this variable in
    latexmk.pl for details.  This works around a problem caused by a change in
    the behavior of lualatex in TeXLive 2017; it no longer lists all input
    files in the .fls file.  Note that latexmk.pl always examines the .log
    file for relevant information.  The variable $analyze_input_log_always
    only concerns whether it looks for <...> and (...) constructs.
  Add item to @file_not_found for the particular format of generic package
    warning about "No file", that is produced by glossaries-extra, and
    probably other packages.
  Documentation improvements, especially on methods of implementing
    custom dependencies for multiple kinds of index.
  Document $kpsewhich_show variable.
  Add a sample latexmkrc file for use with bib2gls and glossaries-extra.

Log message:
Updated latexmk to 452c.

From v. 4.48 to 4.52
  Optimize number of calls to kpsewhich.  This often gives a
    considerable savings of run time when a document includes many
    graphics files that are in a texmf tree.
  Fix bug that if an .aux file is deleted and latexmk is run, the
    wrong number of runs of (pdf)latex was made.
  Fix related problem that latexmk sometimes does too few runs of
    (pdf)latex because of the incorrect detection that a file is only
    read after being written.
  Implement direct support for xelatex and lualatex.  Previously these
    programs were used by configuring the $pdflatex so that the desired
    program is run instead of pdflatex.  There are now configuration
    variables $xelatex and $lualatex to specify the commands used, and
    extra command line options -pdfxe and -pdflua.
  In the case of xelatex, considerable improvement in run time is
    given for documents containing large graphics files.  This is
    because compilation is made first to an xdv file instead of direct
    to a pdf file.  Only when this file is finalized is a single
    conversion to a pdf file made.  (This last step can be especially
    time-consuming for documents that bring in large graphics files.)
  Correct detection for missing graphics files with xelatex.
  Work around LuaTeX line-wrapping bug.
  Update documentation.
  Minor improvements in code and diagnostics.

From v. 4.52 to 4.52b
  Fix bug introduced in 4.52 that use of bibtex wasn't always detected
    when recorder mode is on.

From v. 4.52b to 4.52c
  Document $kpsewhich_show variable.
  Make -jobname work with -pdfxe and -pdflua

Log message:
Updated latexmk to 448.

From v. 4.45 to 4.46
  Correct creation of output and aux directories to correctly handle
  relative paths when -cd is used.
  Minor documentation corrections.

From v. 4.46 to 4.48
  Correct documention: default value of $recorder is 1
  Add routines rdb_list_source, rdb_set_source for manipulating
    dependency lists of a rule.  Add these to the documentated
    interface, in addition to the already documented rdb_ensure_file,
    rdb_remove_files.
  Update webpages in documentation.

Log message:
Updated latexmk to 445.

From v. 4.39 to 4.39 documentation update of 2 Dec 2013
  Correct two errors in documentation and in the file COPYING.

From v. 4.39 to 4.40
  Fix failure to clean up correctly when root filename contains [,
    which is a glob metacharacter.

From v. 4.40 to 4.41
  -c also deletes $deps_file if it is used
  Quote jobname when needed.
  Change maintainer's preferred e-mail
  Attempt to improve handling of errors from (pdf)latex.
  Fix up for the making of -eps-converted-to.pdf
  Improve listing of warning lines from log file.
  Fix failure when using both -cd and -output-directory
  If user's home directory can't be determined, then don't read ~/.latexmkrc
  Introduce configuration variable $silence_logfile_warnings
  In setting $pscmd, allow for non-existent environment variable USER
  Correct subroutine Run for internal cmd w/o arguments
  Experimental: Add analysis hook for aux file.
  System initialization files: allow them to be named latexmkrc as
    well as LatexMk, for more consistency with user directory names.
    Keep both cases, to preserve backward compatibility.
  Change sign-on message.  Bug report info with help.

From v. 4.41 to 4.42
  Fix bugs associated with the -cd option
  Add missfont.log and the generated synctex.gz to standard cleaned-up files

From v. 4.42 to 4.43a
  Fix problem that source files are not correctly detected under
    MiKTeX when name of current working directory contains non-ASCII
    characters.
  On cleanup, synctex.gz files are deleted only by -C, not by -c.

From v. 4.43a to 4.43c
  Correct normalization of filenames, so that initial "./" is always
  removed.  This prevents custom dependencies being run twice on the
  same file.
  Documentation correction on use of @BIBINPUTS.
  Diagnostic correction.
  Example rc file for using texinfo (thanks to Vincent Bela\"iche).
  Additions to documentation concerning advanced configuration.

From v. 4.43c to 4.44
  Correct bug in use of %hash_calc_ignore_pattern
    (Previously it only had its documented effect when a targetted
    file hadn't changed in size.)
  Correct error handling when biber finds a malformed .bcf file.

From v. 4.44 to 4.45
  Fix problem of -C not always working correctly when compilation was
  with -pdf and clear was default.
  Fix bug in limiting number of passes when $max_repeat >= 10
  Fix bug in finding id of viewer process id under OS-X