Usually branches from only last two releases are supported by the project, with one month grace period for the branches from two releases back. Thus, netbsd-7 support was supposed to end in the middle of March. Nevertheless, due to pandemic the project decided to extend netbsd-7 support up to 30th of June. Because of this, netbsd-7, netbsd-7-1 and netbsd-7-0 maintenance will be stopped starting 1st of July, 2020. Definitely, the project team encourages to update to the latest release and promises to release NetBSD 9.1 soon.