# kDNSServiceProperty_DaemonVersion The daemon version property. ``` var kDNSServiceProperty_DaemonVersion: String { get } ``` ## Discussion When requesting [`kDNSServiceProperty_DaemonVersion`](/documentation/dnssd/kDNSServiceProperty_DaemonVersion), the result pointer must point to a 32-bit unsigned integer, and the size parameter must be set to sizeof(uint32_t). On return, the 32-bit unsigned integer contains the version number, formatted as follows: Major part of the build number * 10000 + minor part of the build number * 100 For example, OS X 10.4.9 has mDNSResponder-108.4, which would be represented as version 1080400. This allows applications to do simple greater-than and less-than comparisons: e.g. an application that requires at least mDNSResponder-108.4 can check: ```objc if (version >= 1080400) ... ``` Example usage: ```objc uint32_t version; uint32_t size = sizeof(version); DNSServiceErrorType err = DNSServiceGetProperty(kDNSServiceProperty_DaemonVersion, &version, &size); if (!err) printf("Bonjour version is %d.%d\n", version / 10000, version / 100 % 100); ``` --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)