OS /e/ support : update and security

Good evening,

Each operating system must have support with updates and especially security.
Androïd has its own support service that changes version every two or three years, is the OS /e/ independent of Androïd support?
What is the OS /e/ support policy?
Thank you for your answers.

Have you had a look into the forum ? Searched and read some posts ? There are some other posts regarding your question.
And have you read the faq ? There are also answers.

As @harvey186 mentioned you can get your answers in the FAQ


A precision on the security support, is it the same level as the Google Android and should we expect a lower level of security?
I do not care about applications, which interests me to know how the software lives.

Same level as Google Android.