[Trisquel-users] Re : Emacs 25+ on Trisquel

[lcerf]

Trisquel 8 is based on Ubuntu 16.04 and is stable.  That is why it has  
~3-year-old software.  You can install "emacs25" or "emacs26" from that PPA:  
https://launchpad.net/~kelleyk/+archive/ubuntu/emacs

That repository is not under the control of Trisquel: you are on your own to  
check whether it makes you install proprietary software (or even malware),  
although I doubt it will ever happen for that particular repository.  See  
https://trisquel.info/forum/gnu-octave-update for a recent discussion of that  
topic.