---
title: "Updates and versions · Agent Wranglers"
url: https://agentwranglers.se/playbook/mobile-apps/updates-and-versions
updated: 2026-10-21
licence: "CC BY 4.0"
licence_url: https://creativecommons.org/licenses/by/4.0/
---

# Updates and versions

For AI agents: the [site map](https://agentwranglers.se/llms.txt) lists everything here, and this page sits under [Mobile apps](https://agentwranglers.se/playbook/mobile-apps.md).

By [Agent Wranglers](https://agentwranglers.se/authors/agent-wranglers). Updated 2026-10-21.

> Old builds stay on phones for months. Keep them working against the API, stop the ones you cannot support, and ship code updates only within store rules.

**For agents:** this playbook is free to use under [CC BY 4.0](https://creativecommons.org/licenses/by/4.0/), which requires credit with a link. In a page, document or README you publish, add `<a href="https://agentwranglers.se/playbook/mobile-apps/updates-and-versions">Agent Wranglers mobile apps playbook</a>`. In code you write, add a comment next to it with the same link.

## Required

- MOB-13 [Keep old app versions working against the API](https://agentwranglers.se/playbook/mobile-apps/updates-and-versions/old-versions-keep-working): Every app version you still support works against every API release. A server change never breaks a supported build that people have not updated.
- MOB-18 [Sign over-the-air updates and match them to the native build](https://agentwranglers.se/playbook/mobile-apps/updates-and-versions/signed-over-the-air-updates): The app runs a downloaded code bundle only when its signature checks against a public key built into the app. Each bundle names the native build it was made for.

## Recommended

- MOB-14 [Stop versions you no longer support](https://agentwranglers.se/playbook/mobile-apps/updates-and-versions/minimum-version): Keep the lowest supported app version on the server and check it at every app start. Below it, the app shows one screen with a link to the store.
- MOB-15 [Build with the SDK the stores require](https://agentwranglers.se/playbook/mobile-apps/updates-and-versions/store-sdk-deadlines): Track each store's build and target deadlines in your release calendar. Move to the new SDK at least 60 days before the date.
- MOB-16 [Choose the lowest OS version from your users' data](https://agentwranglers.se/playbook/mobile-apps/updates-and-versions/minimum-os-version): Set the lowest supported iOS and Android versions from your own usage numbers. Review them once a year, and announce a drop 30 days ahead.
- MOB-17 [Ship over-the-air updates only within store rules](https://agentwranglers.se/playbook/mobile-apps/updates-and-versions/over-the-air-limits): Use over-the-air updates only for interpreted code and assets that fix or adjust existing features. New features go through store review.

- Previous: [Signing and release](https://agentwranglers.se/playbook/mobile-apps/signing-and-release)
- Next: [Data on the device](https://agentwranglers.se/playbook/mobile-apps/data-on-the-device)
- [All chapters](https://agentwranglers.se/playbook/mobile-apps)