[R] upgrade from R 3.6.3 to 4.0.0

[Carlos H. Mireles]

Hello everyone, I'm trying to upgrade R from 3.6.3 to 4.0.0 using the linux
terminal commands (sudo apt upgrade r-base r-base-dev) but I get a message
that says 3.6.3 is still the latest version. Please see the output below.
How could I fix this?

Thanks much for your help!

Carlos

==========================================================
(base) carloshmireles using chm-hp:~$ sudo apt upgrade r-base r-base-dev
[sudo] password for carloshmireles:
Reading package lists... Done
Building dependency tree
Reading state information... Done
r-base-dev is already the newest version (3.6.3-1bionic).
r-base is already the newest version (3.6.3-1bionic).
Calculating upgrade... Done
The following packages were automatically installed and are no longer
required:
  linux-headers-4.15.0-91 linux-headers-4.15.0-91-generic
linux-image-4.15.0-91-generic linux-modules-4.15.0-91-generic
  linux-modules-extra-4.15.0-91-generic
Use 'sudo apt autoremove' to remove them.
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
(base) carloshmireles using chm-hp:~$

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