Many organisations post product news on the community homepage.
These announcements often take up prime real estate on the community’s homepage.
This isn’t usually a good idea. The overwhelming majority of members don’t visit to read news and those that do probably aren’t the right people you want to engage in the community. When you begin posting news in the community, the community can quickly become a dumping ground of announcements.
I’d suggest you either create a group for people specifically interested in news and post it there or simply don’t post it at all. Instead include a link where people can get news and keep the majority of the site there for what people want to do most – exchange useful information with each other.