Build 29585 is not mentioned in the provided context. The latest Canary 29500-series build in the context is 29580.1000, which is available via Windows Update for devices enrolled in the Canary 29500 Series Channel (transitioning to the Experimental (Future Platforms) channel). These builds are pre-release, can be unstable, and may have limited documentation. To receive such builds, ensure the device is in the appropriate Insider channel and that the toggle to get the latest updates is turned on under Settings > Windows Update.
For details on which build is currently in which Insider channel, use Flight Hub.
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