# Airship iOS SDK Migration Guides
* [SDK 17.x to 18.x](migration-guide-17-18.md)
* [SDK 16.x to 17.x](migration-guide-16-17.md)
* [SDK 15.x to 16.x](migration-guide-15-16.md)
* [SDK 14.5 to 16.x](migration-guide-14-16.md)
* [SDK 14.x to 14.5](migration-guide-14.5.md)
* [SDK 13.2 to 14.x](migration-guide-13-14.md)
* [SDK 13.0/13.1 to 13.2](migration-guide-13.2.md)
* [SDK 12.x to 13.x](migration-guide-12-13.md)
* [SDK 11.x to 12.x](migration-guide-11-12.md)
* [SDK 10.x to 11.x](migration-guide-10-11.md)
* [SDK 9.x to 10.x](migration-guide-9-10.md)
* [Older versions](migration-guide-legacy.md)