How to install the latest LibreOffice on Debian 10 Buster?

Remove existing LibreOffice

sudo apt remove libreoffice*
sudo apt autoremove

Add Debian backports to sources list,

sudo mousepad /etc/apt/sources.list

Add the following line at the end of the sources list,

deb http://deb.debian.org/debian buster-backports main

Save and close the file,

Update the repository and install LibreOffice

sudo apt-get update
sudo apt-get -t buster-backports install libreoffice

Information courtesy: Subeesh Gopinathan

Debian 10 (Buster) Indian repository

Debian Indian repository can speed up the download speed while upgrade and installation of new packages. Indian users get the advantage of local Debian repository. Here is the Indian repository of Debian 10 (Buster).

Add to sources.list

Open the sources.list using your favourite text editor,

su
mousepad /etc/apt/sources.list
Delete or comment out the existing repository details in the file. Copy and paste the following content into the file.
deb http://debianmirror.nkn.in/debian/ buster main
deb-src http://debianmirror.nkn.in/debian/ buster main
deb http://security.debian.org/debian-security buster/updates main
deb-src http://security.debian.org/debian-security buster/updates main
# buster-updates, previously known as 'volatile'
deb http://debianmirror.nkn.in/debian/ buster-updates main
deb-src http://debianmirror.nkn.in/debian/ buster-updates main
Update the repository list and upgrade the packages
apt update
apt upgrade