The Fall 2021 LaTeX release is available
As we have announced previously, we have shifted the release dates for LaTeX slightly, to better align with the yearly release of TeX Live: a first release in May/June after TeX Live has updated and a second release around November.
The current release does not contain any major new modules, but is focused around consolidation and improvements of functionality introduced in previous releases. In the meantime we are working further on the future production of reliable tagged PDF output (see the article LaTeX Tagged PDF — A blueprint for a large project that describes the project we are engaged in), which will again take center stage in the Spring release 2022.
Hook management improvements
There have been some improvements of the hook management as a result of feedback from developers and our own experience applying the new functionality. This includes one breaking change in behavior (relevant only to package developers), for which we offer compatibility code for now. Thus nothing will break right now, but going forward the new method needs to be used, because at some point in the future the compatibility code will be taken out.
- Standardizing generic hook names;
- Rationalizing the behavior of
- Providing a command to clear “next” hook code before invocation;
- Properly clean up after a one-time hook.
New or improved commands
There are many enhancements and corrections that we
documented in the ltnews article for this release (and a few very
minor ones that only made it into the
changes.txt file). The most
important aspects from a user perspective are:
\ShowCommandto show commands defined with
\NewCommandCopyas well, to safely copy such commands to new names;
- Improving the math font family allocation to avoid running out of available math groups in complex documents. A number of math alphabets (controlled through the counter
localmathalphabets) are now locally allocated and their math groups can be reused with different alphabets per formula;
\PackageNoteOnLineto show notes that aren’t “warnings” on the terminal;
- Supporting an
\includegraphics(anticipating future development);
- Providing a new
\newcolumncommand and an optional argument to
- Altering the default for
But read the whole ltnews article because there may be other gems that are useful for you.
Where to learn more …
The new features and most of the important bug fixes made in this release are documented in “LaTeX2e News Issue 34”. This document can be found on the LaTeX2e news page where you will also find release information for earlier LaTeX releases.
Happy LaTeXing — Frank