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What's new in Rachio 3.9
Check out what's new in the Rachio app!
New Features:
• New look for the Quick Run feature, along with new functionality that allows you to manually run schedules straight from Quick Run.
• Added the ability to maintain current shared access connections when transferring ownership of a device.
Improvements:
• Added a step in onboarding to name your controller.
• Added time limitations to Quick Run and Manual Cycle and Soak to prevent irregular behavior.
• Bug fixes and performance improvements.
About Rachio 3.9
The Rachio Smart Sprinkler Controller changes the way you water. It makes running your sprinklers easy and convenient while saving you water and money. Rachio automatically creates a watering schedule that lowers your water bill and ensures the beautiful yard you want, while the mobile app gives you access to your sprinkler system from anywhere. Plus, Rachio is compatible with nearly any sized yard and smart home platform.
This is the companion app to the industry leading Rachio Smart Sprinkler Controller.
Download Rachio 3.9
This release may come in several variants. Consult our handy FAQ to see which download is right for you.
Version:4.21.23
Uploaded:June 15, 2026 at 4:45PM UTC
File size:88.54 MB
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File size:76.56 MB
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Version:4.21.21
Uploaded:May 27, 2026 at 4:45PM UTC
File size:76.56 MB
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Uploaded:May 7, 2026 at 3:49PM UTC
File size:78.04 MB
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Version:4.21.19
Uploaded:April 30, 2026 at 7:38PM UTC
File size:78.05 MB
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Uploaded:April 14, 2026 at 3:40PM UTC
File size:78.05 MB
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Version:4.21.17
Uploaded:April 13, 2026 at 5:13PM UTC
File size:78.05 MB
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Version:4.21.16
Uploaded:March 5, 2026 at 4:43PM UTC
File size:77.73 MB
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Version:4.21.15
Uploaded:March 3, 2026 at 8:06PM UTC
File size:77.74 MB
Downloads:1
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Uploaded:January 14, 2026 at 5:31PM UTC
File size:73.08 MB
Downloads:2
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