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GrapheneOS rewrites its Messaging app interface in Android Compose

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GrapheneOS, the security-hardened Android fork for Pixel devices, announced on its official Mastodon account on September 6, 2026 that it is well into converting the Messaging app it ships to users into a modern app. The post said a new release was coming later the same day, bringing what GrapheneOS described as a completely overhauled user interface written in Android Compose, Google's modern declarative UI toolkit for Android. Alongside the interface rewrite, GrapheneOS said it had made a massive amount of other improvements and bug fixes, without listing what any of them are. The announcement did not give a version number, an exact release time, or a download link, and did not state why the Messaging app was being converted now.

Key facts

  • GrapheneOS announced on Mastodon that it is converting its bundled Messaging app into a modern app.
  • A new release was due later the same day, September 6, 2026.
  • The release rewrites the Messaging app's UI entirely in Android Compose.
  • GrapheneOS said it made a massive amount of other improvements and bug fixes beyond the UI, without specifying them.
  • No version number, release time, or download link accompanied the announcement.

Why it matters

GrapheneOS is a hardened, privacy-focused Android fork built for Pixel hardware, and its bundled Messaging app is the default SMS/MMS client most of its users rely on. Rewriting that app's interface in Android Compose, the modern declarative toolkit Google now recommends for Android UI, signals the project is modernizing its own first-party apps rather than leaving them on older UI code.

Who it affects

GrapheneOS users running the bundled Messaging app on their devices. The change is cosmetic and structural at the UI layer rather than a new feature, so anyone who already uses that app is the direct audience.

How to use it

GrapheneOS said the new release with the rewritten interface was coming later on September 6, 2026, through the project's normal update channel. GrapheneOS is free and open source, and no pricing or licensing terms apply.

How solid is it

The announcement comes from GrapheneOS's own official Mastodon account, a first-party source, and the wording is specific about the Compose rewrite and the same-day timing. It is nonetheless a pre-release announcement rather than a shipped changelog: it names no version number and gives no detail on the other fixes it claims.

Risks and caveats

GrapheneOS described a large amount of additional improvements and bug fixes without saying what any of them are, so their scope cannot be verified from this post. The announcement predates the actual release, so the update should be confirmed once it ships. Note also that this post discusses only the Messaging app rewrite; it does not mention broader default-app changes or clipboard isolation.

“We'll be making a new release later today with a completely overhauled user interface written in Android Compose.”

— GrapheneOS, official Mastodon account