The TL 2020 pretest is in preparation. It will be announced on the tex-live@tug.org list when ready.


.

The pretest build runs nightly, ending by 4am Paris time unless something goes wrong. The mirror hosts should all be up to date within a few hours after that.

Installing

After downloading as above, you can run the script install-tl (Unix) or install-tl-windows.bat (Windows) to perform the installation. We just use install-tl as the command name in these examples:

If you are performing a network installation, the pretest repository location from which to install must be specified, as shown in these examples (see downloading above for the location urls). The location must be an ftp or http url (not rsync).

But in the case of installing from your own mirrored repository, you should omit -repository location from the given command lines.

For information on all of the installer options, run install-tl --help, or see the install-tl documentation page.

Testing

After a successful installation, please first try simple test documents, such as latex small2e and pdflatex sample2e. If that works, even more useful is to try your real-life documents, to check that they still work as expected. If third-party packages have changed incompatibly, their maintainers should be contacted directly.

Updating

After a successful installation, you can update from the tlpretest repository using tlmgr from time to time, if you wish. In the event of unusually drastic changes during the pretest you may have to reinstall.

Reporting problems

Please email bug reports, suggestions, comments on TeX Live itself (the installation process, tlmgr, etc.) to tex-live@tug.org (archive). Bugs about specific packages should be reported to the package maintainers; TeX Live's basic job is to install (some of) what is on CTAN, not make changes on top of it. Resources for general questions and help using TeX are available.

Notable changes

The main TeX Live documentation and translations are not yet fully updated.

As always, there are pervasive updates to packages and programs. We can't list them all, but here are the major user-visible changes in the principal programs:

General
kpathsea (full Kpathsea news)
qqq
eptex, euptex
New primitives \Uchar, \Ucharcat, \current(x)spacingmode, \ifincsname; revise \fontchar?? and \iffontchar. For euptex only: \currentcjktoken.
luatex (full LuaTeX news)
metapost (full MetaPost news)
pdftex (full pdfTeX news)
ptex (full pTeX news)
New primitives \ifjfont, \iftfont. Also in eptex, uptex, and euptex.
xetex (full XeTeX news)
New \filedump primitive, and fixes for \Umathchardef, \XeTeXinterchartoks, \pdfsavepos.
dvips (full dvips news)
Output encodings for bitmap fonts, for better copy/paste capability.
tlmgr (full tlmgr news)
install-tl
qqq
MacTeX
MacTeX and x86_64-darwin now require macOS 10.13 or higher (High Sierra, Mojave, and Catalina); x86_64-darwinlegacy supports 10.6 and newer. MacTeX is notarized and command line programs have hardened runtimes, as now required by Apple for install packages. BibDesk and TeX Live Utility are not in MacTeX because they are not notarized, but a README file lists urls where they can be obtained.
Utilities
qqq
Platforms
qqq

If you discover other changes that should be noted, please report them. Such documentation improvements are among the most important things pretesters can help with. -->


$Date: 2019/11/20 02:40:53 $; TeX Live;
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