We already announced long ago that Debian 9.0 was in development, the macro project and the great community behind this distro have not stopped working and now the developer Jonathan WIltshire has announced that the famous GNU / Linux distro has entered the final development phase, and that it is officially frozen since this February 5, 2017. Therefore, new functionalities will no longer be added, only work will be done on correcting errors and covering vulnerabilities to make it more stable and robust for its launch.
Debian GNU / Linux 9.0 will have codename "Stretch" as we already announced. For those who do not know, the names of the distros are taken from the characters of the animated film Toy Story. Regardless of this, it is a great step not only for the Debian project as such, but also for all the distributions that depend directly on this base, such as Ubuntu and derivatives. Now they will have a solid new foundation brick to build great things on.
As I said, there will be no new additions of packages until the system is declared GA (General Available), ready to go on the streets and that we can all enjoy it directly or indirectly. How long it will take to get out will depend in part on the critical bugs they have to fix and other last minute improvisations that block their launch. However, you can already try it from the official project website, or download stable previous versions if you are not yet familiar with this fantastic distro ...
Anyway, It will not be long for Debian 8.0 "Jessie" to have a more advanced replacement, although we do not know for sure the day that will come. We can only wait for more news and want to try it to see the progress they have made in this latest version of the project, which will not only affect the Linux world, because as you know, Debian is also distributed with other kernels, such as kFreeBSD, HURD, etc. If you are interested, I invite you to go to the project website.