Thank you for contacting us.
You can find a lot of information regarding your question in our forums or if you go through the documentation. For example, these two forum threads could be useful: Thread 1
| Thread 2
More information could be also found if you search for other topics discussed in the forums.
And for any specific things related to Sitefinity, you can relate to the official documentation
I hope this information helps.
Do you want to have your say in the Sitefinity development roadmap? Do you want to know when a feature you requested is added or when a bug fixed? Explore the Telerik Public Issue Tracking
system and vote to affect the priority of the items