We do not have the resources to support every ancient version of everything (unless you'd like to pay us to do so). We ONLY support the latest release.
| Version | Supported |
|---|---|
| 1.7+ | ✅ |
| < 1.7 | ❌ |
Since sometimes security vulnerabilities can be sensitive, you can just email me at isaac@zoneminder.com. If it's not such a big deal, by all means, create an issue here on GitHub.