1.4.1
A patch release over 1.4.0. If you are on 1.4.0, take this one — its jars are otherwise identical.
Fixed
initialize reported the wrong version. serverInfo answered 1.0.0-SNAPSHOT, hardcoded, and wrong since 1.0.0. It is what an MCP client displays for this server, so the one place you could read the version was the one place that never got updated — 1.4.0's own jar still calls itself 1.0.0-SNAPSHOT.
The number now comes from the jar manifest, which Gradle fills from the project version, so there is no second copy to forget. Running from a directory rather than a jar — an IDE or a test run — reports dev.
Upgrading
Replace the three jars. Nothing else changes: no tool, parameter or behaviour differs from 1.4.0.
Everything in 1.4.0 — several sessions at once for proxied networks, and the resource-pack hang fix — is in this release too. Read those notes if you are coming from 1.3.0.