Reflect the current status of Unit on the community page

Cc: Maryna Herasimovich <m.herasimovich@f5.com>
Signed-off-by: Andrew Clayton <a.clayton@nginx.com>

Author: ac000

source/community.rst

@@ -8,6 +8,30 @@
 Community
 #########
 
+**********************************
+Maintenance and support guidelines
+**********************************
+
+Going forward, NGINX Unit will no longer get new features or enhancement
+updates from the project maintainers. The team is focusing its limited capacity
+on more critical work instead.
+
+We welcome the community to contribute new features and enhancements, keeping
+in mind the NGINX Unit maintainers will ultimately decide if those changes get
+included in a release.
+
+As the NGINX Unit team has limited resources, we are prioritizing high-impact,
+technical, quality, and security issues. These include resolving crashes
+(segfaults), undefined behavior, updates to the C language and compiler,
+changes to the supported language modules, and fixing security issues in
+third-party libraries.
+
+The goal is to keep NGINX Unit stable, secure, and  high-quality.
+
+************
+Discuss Unit
+************
+
 The `Discussions section <https://github.com/nginx/unit/discussions>`_ of the
 Unit repo is the main place for discussing any topics related to the NGINX Unit project.