The administration interface, called TYPO3 Backend, can be managed from any modern web browser, including tablets and smart phones the same way. Publishing a small change on-the-go or working with tablet devices to add content has never been easier.
You can install TYPO3 by downloading with or without composer. Putting it on a web server or on a cloud service like Microsoft Azure or Amazon AWS is simple - due to proper separation of content, configuration and other assets like caches and temporary files. Use any database you like MySQL/MariaDB, postgreSQL, SQL Server or SQLite - due to the underlying database abstraction.
From its inception TYPO3 has emphasized the importance of stable APIs and full backwards-compatibility. The TYPO3 core team follows a regular release schedule and take great care to ensure easy, non-breaking updates.