Connection Guard 0.5.1 is a maintenance release for Paper/Spigot, BungeeCord/Waterfall and Velocity.
- Fix Velocity bStats initialization with the verified project ID **22913**. The injected factory is bundled in the JAR, the Metrics instance stops on shutdown, and statistics failures leave connection checks active. The global bStats opt-out is respected.
- Make clean optional-addon builds independent of the unavailable upstream Maven path by pinning the unchanged, hash-verified MIT LimboAPI 1.1.26 compilation archive. The API is excluded from runtime JARs.
- Add canonical website links and update README branding.
- Add a reproducible developer benchmark suite with actual-JAR policy, provider-failure and recovery gates in CI. It is a development tool, not a new detection algorithm or a claim of measured performance superiority.
- Synchronize asynchronous webhook test fixtures with their worker before assertions; production webhook behavior is unchanged.
**Upgrade:** stop the server/proxy, replace the main JAR with `connection-guard-0.5.1-all.jar` and restart. Keep only one main JAR. Existing configuration and the Cloud protocol/defaults are unchanged.
**Cloud is optional and on by default.** Disable it with `cloud.enabled: false`, `/cg cloud disable` or `CONNECTIONGUARD_CLOUD=false`. [Plugin privacy disclosure](https://connectionguard.net/privacy#plugin).
Qualification: 431 regression tests including loopback Redis, reproducible main/addon archives, packaging/version-history guards and artifact-bound benchmark checks. The final JAR is checked for startup/help/reload/shutdown on Paper 1.21.11-132, Velocity 3.4.0-566, Paper 26.3-151, Folia 26.2-7, Velocity 4.2.0-30 and 4.2.1-SNAPSHOT-36. Current Paper/Folia builds are beta builds; Velocity 4.2.1 is a development snapshot. The actual Velocity bStats factory, service ID and collectors are verified with telemetry disabled; live bStats ingestion is not established. [Exact qualification scope and limits](https://github.com/gerolndnr/connection-guard/blob/0.5.1/docs/RELEASE_0_5_1.md).
Compatibility metadata includes stable Minecraft releases through **26.3** and Hangar Velocity entries through **4.2.1**. These selected checks do not prove every intermediate version or authenticated account/login scenario.
Download and docs: https://connectionguard.net/download
Developer information
Projects on Modrinth are automatically available through a Maven repository for use with JVM build tools such as Gradle.
maven { name = "Modrinth"; url = "https://api.modrinth.com/maven" }
