Version 13.1.9 of package Auctex has just been released in GNU ELPA. You can now find it in M-x list-packages RET.
Auctex describes itself as: ================================ Integrated environment for *TeX* ================================ More at https://elpa.gnu.org/packages/auctex.html ## Summary: This is the README file for the AUCTeX distribution. Copyright (C) 2008, 2017, 2018 Free Software Foundation, Inc. Copying and distribution of this file, with or without modification, are permitted in any medium without royalty provided the copyright notice and this notice are preserved. Introduction to AUCTeX ********************** This file gives a brief overview of what AUCTeX is. It is *not* an attempt to document AUCTeX. Real documentation for AUCTeX is available in the manual, which should be available as an info file after installation. AUCTeX is a comprehensive customizable integrated environment for writing input files for TeX, LaTeX, ConTeXt, Texinfo, and docTeX using Emacs. ## Recent NEWS: [Not available 🙁]