System Drupal 7 becomes deprecated, so I working on migration of all my web sites to newer Drupal 8. Now I managed to upgrade the web of housing association made in the year 2015. There is a lot of incompatibilities in the new Drupal version, so upgrading it means to create also a new theme and replace few deprecated modules.
Wiki says: Drupal is a free and open source content-management framework written in PHP and distributed under the GNU General Public License. Drupal provides a back-end framework for at least 2.3% of all web sites worldwide – ranging from personal blogs to corporate, political, and government sites. Systems also use Drupal for knowledge management and for business collaboration.
I am running my mom's web sites for years now. In fact these are two webs, both presenting her art skills using photogallery of her creations. One web is presenting my mom as talented florist, the other one shows her as jewellery maker.
Websites were based on CMS Drupal version 7, now i decided to migrate these to Drupal 8. On that occasion I also made new theme based on modern frontend framework Bootstrap 4.
After 6 years of using domain skorpils.cz, a skorpil.cz domain got free. Hurray, I registered it immediately and transfered all my services on it. With new domain I wanted also refresh my website running on this domain.
I migrated all the data to newer Drupal 8 (previous web was based on Drupal 7) and created new look based on Barrio library. Barrio is so called base theme, it helps to integrate Bootstrap 4 frontend framework to Drupal and so speeds up the development.