If you don't need to launch an entire press release for every feature update, then Beamer is a great way to surface minor updates internally to your platform users. The internal news update that is shown to platform users allows us to add helpful content to logged-in users.
PushPrime - Supercharge your website with push notifications
AnnounceKit - Announce product updates like a boss 😎
FirePush - FirePush will help your business grow. Automate your online store with web pushes and SMS messages to increase your business sales. Give reminders about abandoned carts, send promotions, delivery updates and make money while you sleep.
Headway - Keep customers in the loop about your product.
PushCrew - Push Notifications for Websites
Changelogfy - Changelogfy is an all-in-one platform to collect, organize and manage customer and teammates feedback, prioritize and build a product roadmap, and announce product updates.