This time, for sure, spring is really here. The new edition of MacTeX, the suite of tools making it easier to use the LaTeX typesetting system on Mac, is available. After the main utilities last year, the latest laggards are adopting the Apple Silicon architecture this year.
Thus, the Biber bibliographic reference manager and the xindy indexing system are now available as universal binaries. Apple had announced the withdrawal of Python 2, deprecated for a long time, but still used by TeX Live Utility. The preference manager now ships its own distribution of the programming language, waiting for it to drop the last traces of Python 2 code.
In addition to TeX Live Utility, MacTeX embeds the BibDesk bibliographic reference manager, the TeXShop text editor, the LaTeXiT equation editor, and the essential PostScript/PDF Ghostscript interpreter. The universal version of the suite is compatible with macOS Mojave and its successors, but a “legacy” version remains available for systems as old as Mac OS X Snow Leopard.