MacTex - Issue after install update

Lars Madsen daleif at
Wed May 26 15:38:40 CEST 2021

If you have the space, it is often better to keep it. Then if, for some reason there is a document that just does not work with TeXLive 2021 (MacTeX is TeXLive with a wrapper), then you always have the option to compile it with the 2020 version.

Otherwise, if your 2021 version works as it should you can remove the 2020 version. The 2021 version should not be depending on anything from the 2020 version.

Lars Madsen

Institut for Matematik
Aarhus Universitet at math<>

From: tex-live < at> on behalf of Zhihao Ma <zhihaoma at>
Sent: 26 May 2021 15:28
To: tex-live <tex-live at>
Subject: MacTex - Issue after install update


I am Zhihao Ma, a user of Texlive/Mactex from China and have updated my TexLive/Mactex to 2021 version.

I found there are two files in the /usr/local/texlive, named "2020" and "2021" respectively. I'm wondering whether I could delete the "2020" file.

Looking forward to hearing from you soon.

Best wishes,


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