Jedis Release History

How Does Jedis Handle Version Support Without a Formal Policy?

Jedis does not publish a formal support lifecycle the way large vendors do. Support is community-driven and follows the rhythms of the open-source project on GitHub. In practice, active maintenance is concentrated on the latest major release -- older major versions receive little to no attention once a new one ships.

The most reliable signal for whether a Jedis version is still supported is GitHub activity: open issues being triaged, pull requests being merged, and new patch releases appearing. If a major version stops receiving commits, it is effectively unsupported regardless of any formal statement.

Jedis tracks Redis protocol and feature evolution closely. When Redis introduces new commands or behavior, Jedis releases follow. This means the supported version is essentially the one that keeps pace with the Redis version you are running in production.

What Are the Real Risks of Running an Outdated Jedis Version?

The primary risk with an old Jedis version is Redis protocol mismatch. Redis evolves its command set and behavior across releases, and Jedis implements those changes. If your Jedis client is several major versions behind, you lose access to newer Redis commands entirely -- they simply do not exist in the client API.

A more subtle risk is connection pool behavior. Jedis has significantly reworked its pooling and connection management across major versions. Older pooling implementations are known to leak connections under certain failure modes, leading to thread exhaustion and application hangs that are difficult to diagnose without knowing the root cause.

Java ecosystem drift is also a factor. Older Jedis versions were compiled against older Java versions and older dependency trees (Apache Commons Pool, for example). As your application upgrades its own dependencies and Java runtime, transitive conflicts accumulate. The further behind you are, the more classpath pain you accumulate.

What Happens to a Jedis Version Once the Community Moves On?

There is no deprecation announcement or EOL date for Jedis versions. What happens is quieter: the older major branch simply stops receiving commits. Issues filed against it get redirected to the current major version, and the maintainers close them with a suggestion to upgrade. At that point, any bug you hit is your bug to fix alone.

Security vulnerabilities present the sharpest edge of this pattern. Jedis itself rarely introduces CVEs, but its dependencies do. An old Jedis version pins old dependency versions, and those do accumulate published CVEs over time. Because there is no backport policy, you cannot get a patched release -- you either upgrade Jedis or patch the dependency yourself and maintain a fork.

In practice, most teams treat this as an invisible technical debt clock. The Jedis version works fine until the day a dependency scanner flags a vulnerability in a transitive dependency, or until a new Redis feature makes staying on the old version untenable. Upgrading sooner rather than later avoids the scenario where you must migrate under pressure.

How To Check Your Jedis Version

If you are using Maven or Gradle, the quickest way is to look at your dependency manifest. The version is declared explicitly -- Jedis does not have a runtime method to query its own version number.

Maven (pom.xml)

<dependency>
    <groupId>redis.clients</groupId>
    <artifactId>jedis</artifactId>
    <version>[your-version]</version>
</dependency>

Gradle (build.gradle)

implementation 'redis.clients:jedis:[your-version]'

Check resolved version via Maven

mvn dependency:list | grep jedis

Check resolved version via Gradle

./gradlew dependencies | grep jedis

The resolved version shown by these commands is what actually ends up in your JAR -- useful when Jedis is pulled in transitively by a framework like Spring Data Redis rather than declared directly.