From Newsgroup: comp.text.tex
Frederik Tilmann submitted an update to the
latexdiff
package.
Version: 2026-01-02
License: gpl3
Summary description: Determine and mark up significant differences between LaTeX files
Announcement text: ----------------------------------------------------------------------
New features:
add directive pairs %BEGIN DIF(ADD|DEL), %END DIF(ADD|DEL)
that causes blocks to be marked up as a whole
add directive pair %BEGIN DIFNOMARKUP, %END DIFNOMARKUP that
can suppress markup locally
add option for letter-level markup for single substituted words,
controlled by configuration variable MAXCHANGESLETTER, which limits
this behaviour to a small number of changes.
By default this is set to 1 - other sensible settings are 0 and 2.
Bug fixes:
Fix a bug in pre-/postprocessing that led to odd behaviour if
some characters with special meaning, like _,^ were used in
particular contexts in verbatim environments. Fixes #305
Fix a bug in the preprocessing that detects \[, \] as math
expression (it was interpreting \] as + ] instead of correctly \ + ]
Commands that were both in the safecmd and textcmd list, and
which have additional arguments beyond the last textual one
(optional or non-optional) could lead to errors, if there was
a change in those earlier arguments (fixes #306, first reported
through debian bug report)
super- and subscripts without enclosing curly braces were assumed
to be a simple expression, while in reality they could be commands
with complicated (nested) arguments. These cases are not processed
correctly. Fixes #279
in show-textcmd and show-safecmd some extra regex characters are
now properly removed
special preamble additions for highlighting graphics or lines in
verbatim text no longer overwrite the definitions in a user-included
preamble file (via --preamble option). If the user-included preamble
file does not define important commands, then they continue to be
added (some simple heuristics are used to decide whether to add
or not are used, so this decision might not be perfect). Fixes #310
nested array blocks now no longer lead to errors, even when
nothing is changed in them (fixes #287).
sometimes, \protect commands would become separated from the
commands they are supposed to apply, too. They are now kept
together in the same token. Fixes #284
Improper definition of the DIFverbatim environment led to warnings.
This has been corrected now. Fixes #320.
In --flatten mode, input commands in verbatim environments were
erroneously expanded. This is now suppressed. Fixes #321
\i is now a safe command
\frac ab is now processed correctly (Fixes #322)
Modified behaviour:
Commands/RegExs explicitly defined as not safe with
--exclude-safecmd are now also considered unsafe in COARSE and
WHOLE math markup (Fixes #311)
--no-del now also removes deleted comments
--show-... commands now have different behaviour dependent on
whether old.tex and new.tex are specified. If they are not then
the initial setup is shown. If they are specified, then the full
configuration is shown, which includes some additions of internal
commands, and modifications based on what packages are present
on the system, or are used in the .tex files. Either way, no
differencing takes place.
Finally, I highlight a blog written on the occasion of this release:
https://www.linkedin.com/pulse/some-reflections-latexdiff-frederik-tilmann-zcenf
----------------------------------------------------------------------
The packagerCOs Catalogue entry can be viewed at
https://ctan.org/pkg/latexdiff
The packagerCOs files themselves can be inspected at
https://mirrors.ctan.org/support/latexdiff/
------------------------------------------------------------------------
Thanks for the upload.
For the CTAN Team
Petra R|+be-Pugliese
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