---
title: "Choose the lowest OS version from your · Agent Wranglers"
url: https://agentwranglers.se/playbook/mobile-apps/updates-and-versions/minimum-os-version
updated: 2026-10-21
licence: "CC BY 4.0"
licence_url: https://creativecommons.org/licenses/by/4.0/
---

# Choose the lowest OS version from your users' data

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

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

- ID: MOB-16
- Level: Recommended
- Chapter: [Updates and versions](https://agentwranglers.se/playbook/mobile-apps/updates-and-versions)
- Rule: 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.
- How: Each old OS version you keep costs testing time and blocks newer platform features. Read the share of active users per OS version from store analytics or your own logs. Drop a version once it falls below a set share, such as 2% of the last 90 days' active users. Set `minSdk` on Android and the deployment target on iOS. Apple refuses uploads that target below iOS 13. People on a dropped version keep their last build. Keep it working as [keep old app versions working against the API](https://agentwranglers.se/playbook/mobile-apps/updates-and-versions/old-versions-keep-working) says.
- Check: The minimum OS versions in the build files match the last yearly review. Each supported OS version is on the test device list.

## Sources

- [Apple, Upcoming requirements](https://developer.apple.com/news/upcoming-requirements/)

## Related rules

- [Keep old app versions working against the API](https://agentwranglers.se/playbook/mobile-apps/updates-and-versions/old-versions-keep-working) in Mobile apps

**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/minimum-os-version">Agent Wranglers mobile apps playbook</a>`. In code you write, add a comment next to it with the same link.

- Previous: [Build with the SDK the stores require](https://agentwranglers.se/playbook/mobile-apps/updates-and-versions/store-sdk-deadlines)
- Next: [Ship over-the-air updates only within store rules](https://agentwranglers.se/playbook/mobile-apps/updates-and-versions/over-the-air-limits)
- [Updates and versions](https://agentwranglers.se/playbook/mobile-apps/updates-and-versions)