Just want to add here that I get sage 9.1 for now by installing the binary for Debian 8 (Jessie) on a Debian 9 system (in fact on a Devuan ASCII which is based on Debian 9).
Besides some deprecated warnings in the first run, things seem to be fine so far.
I tried to install the binaries for Debian 10 but got errors for not having a version of libc6 that is recent enough. (which is not surprising).
I do hope the binaries for Debian 9 and one for Ubuntu 20.04 will be available soon.
On Friday, May 29, 2020 at 10:48:54 AM UTC-7, Dima Pasechnik wrote: