# App attestation

Published articles for App attestation.

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## How to Deprecate Old Mobile App Versions for Security

DevFeed: [How to Deprecate Old Mobile App Versions for Security](<https://devfeed.tech/articles/how-to-secure-old-app-versions-guardsquare-26309.md>)

Original publisher: [Read original article](<https://www.guardsquare.com/blog/mobile-app-version-deprecation>)

Author: Anton Baranenko - Product manager

Published: 2026-09-08T12:25:47Z

Content type: tutorial

Language: en

Sources: [Guardsquare Blog](<https://devfeed.tech/sources/guardsquare-blog.md>)

Topics: [Mobile](<https://devfeed.tech/topics/mobile.md>), [Security](<https://devfeed.tech/topics/security.md>), [App](<https://devfeed.tech/topics/app.md>), [SDKs](<https://devfeed.tech/topics/sdks.md>)

Tags: [android](<https://devfeed.tech/tags/android.md>), [app](<https://devfeed.tech/tags/app.md>), [app-attestation](<https://devfeed.tech/tags/app-attestation.md>), [dexguard](<https://devfeed.tech/tags/dexguard.md>), [ios](<https://devfeed.tech/tags/ios.md>), [ixguard](<https://devfeed.tech/tags/ixguard.md>), [mobile](<https://devfeed.tech/tags/mobile.md>), [sdk](<https://devfeed.tech/tags/sdk.md>), [security](<https://devfeed.tech/tags/security.md>)

### AI overview

This article examines how to deprecate old mobile app versions after a security vulnerability is fixed. It explains why removing vulnerable versions from official app stores is insufficient and evaluates update mechanisms, including platform-provided in-app updates, from a security perspective.

### Source excerpt

Here's a security incident scenario. You ship a mobile app with insufficient tampering protection, and someone finds it. Now the app can be modified and repackaged into a malicious version with almost no effort.

## New features in App Check beta

DevFeed: [New features in App Check beta](<https://devfeed.tech/articles/new-features-in-app-check-beta-16400.md>)

Original publisher: [Read original article](<https://firebase.blog/posts/2021/08/new-features-in-app-check-beta>)

Author: Tyler Crowe

Published: 2021-08-03T00:00:00Z

Content type: news

Language: en

Sources: [Firebase Blog](<https://devfeed.tech/sources/firebase-blog.md>)

Topics: [Firebase](<https://devfeed.tech/topics/firebase.md>), [Security](<https://devfeed.tech/topics/security.md>), [iOS](<https://devfeed.tech/topics/ios.md>), [API](<https://devfeed.tech/topics/api.md>), [Cloud Functions](<https://devfeed.tech/topics/cloud-functions.md>), [Realtime Database](<https://devfeed.tech/topics/realtime-database.md>), [Cloud Run](<https://devfeed.tech/topics/cloud-run.md>), [Node.js](<https://devfeed.tech/topics/node-js.md>)

Tags: [admin-sdk](<https://devfeed.tech/tags/admin-sdk.md>), [api-security](<https://devfeed.tech/tags/api-security.md>), [app-attestation](<https://devfeed.tech/tags/app-attestation.md>), [app-check](<https://devfeed.tech/tags/app-check.md>), [apple](<https://devfeed.tech/tags/apple.md>), [attestation](<https://devfeed.tech/tags/attestation.md>), [cloud](<https://devfeed.tech/tags/cloud.md>), [cloud-functions](<https://devfeed.tech/tags/cloud-functions.md>), [cloud-run](<https://devfeed.tech/tags/cloud-run.md>), [firebase](<https://devfeed.tech/tags/firebase.md>), [launch](<https://devfeed.tech/tags/launch.md>), [news](<https://devfeed.tech/tags/news.md>), [node-js](<https://devfeed.tech/tags/node-js.md>), [realtime-database](<https://devfeed.tech/tags/realtime-database.md>), [updates](<https://devfeed.tech/tags/updates.md>)

### AI overview

Firebase announces three additions to the App Check beta: iOS App Attest support, configurable token time-to-live values, and protection for non-Firebase backends. The article also explains how these features affect security, responsiveness, quota usage, and supported providers.

### Source excerpt

News, tutorials, and updates from the Firebase team.