The current version of Snort 3 is 3.12.2.0 (as of 08/07/2026). patchletter checks the official source daily and emails you new releases.
Snort 3 at a glance
Snort is a long-established open-source network intrusion detection and prevention system (IDS/IPS), widely used and the basis of many commercial products. Snort ships engine releases plus, separately, frequently updated detection rules — both streams matter for effective protection.
For admins Snort has two update rhythms: the engine (Snort 3 is the modern line) and the rule sets, which change constantly as new threats emerge — automate rule updates so detection stays current, and keep the engine patched. Because Snort parses untrusted network traffic, engine vulnerabilities are a real vector — apply security fixes promptly. After updates, verify that the engine runs, rules load and alerts flow — a silently broken IDS is worse than none. In inline IPS mode, a bad rule or update can block legitimate traffic, so test. Snort 2 is end-of-life; migrate to Snort 3. Patchletter surfaces new Snort releases.
Version history & changelog · as detected by patchletter
| Version | Channel | Date | Notes |
|---|---|---|---|
| 3.12.2.0 | STABLE | 08/07/2026 | Release notes → |
Frequently asked questions
- What is the latest version of Snort 3?
- Snort 3 3.12.2.0, released 08/07/2026. patchletter checks the vendor's official source daily for new releases.
- Where can I find the Snort 3 release notes?
- The version history above links to the vendor's official release notes where the vendor publishes them. patchletter deliberately stores no vendor full texts.
- How do I get notified about new Snort 3 updates?
- Tick Snort 3 off in the catalogue and leave your address. From then on new versions go out by email — one at a time, or bundled in the daily or weekly digest.
An email as soon as a new Snort 3 version ships
We reconcile the vendor source daily. When a new version appears, it lands in your inbox right away or bundled as a digest. The update email is free and ends with one click. Alerts about vulnerabilities and end of support are part of patchletter Pro.
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[](https://patchletter.com/en/software/snort)https://patchletter.com/badge/snort.svgAlso available: ?v=eol (end of support) and ?v=cve (actively exploited).
