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Groovy & Gradle: JVM Automation and Build Engineering · Lesson

Versioning and Release Automation

Automate semantic versioning, Git tagging, and release workflows in Gradle so every build is reproducibly identified and releases are one command away.

Versioning and Release Automation is a free Groovy & Gradle: JVM Automation and Build Engineering lesson on CoddyKit — lesson 4 of 4. You can read the complete lesson below for free — then practise it hands-on in the browser with a built-in code editor and a 24/7 AI tutor. It is part of the Groovy & Gradle: JVM Automation and Build Engineering learning path, one of 4 lessons in the course, and your progress syncs across the web and the CoddyKit app.

Why Versioning Matters

A clear version on every artifact tells consumers what changed and lets you roll back safely. Manual edits to a version string are error prone, so we automate them.

Setting the Project Version

Every Gradle project has a version property used to name published artifacts.

version = "1.4.0"
group = "com.acme"

Semantic Versioning

SemVer uses MAJOR.MINOR.PATCH:

  • MAJOR: breaking changes
  • MINOR: new backward-compatible features
  • PATCH: backward-compatible fixes

SNAPSHOT vs Release

A -SNAPSHOT suffix marks an in-development build that may change. Releases drop the suffix and are immutable once published.

version = "1.5.0-SNAPSHOT"

Deriving Version from Git

Many teams compute the version from the latest Git tag so the source of truth is the repository history, not a hard-coded string.

version = providers.exec {
    commandLine("git", "describe", "--tags")
}.standardOutput.asText.get().trim()

A Release Task

Wrap the steps of a release into a single task that depends on build, tag, and publish.

tasks.register("release") {
    dependsOn("build", "publish")
}

Tagging in Git

An annotated tag records the released version in history.

git tag -a v1.5.0 -m "Release 1.5.0"
git push origin v1.5.0

Bumping the Version

After a release, bump to the next SNAPSHOT so further commits are clearly pre-release. Plugins like Axion or the release plugin automate this.

Reproducible Builds

Pin dependency versions and avoid dynamic ranges so the same source always produces the same artifact, an essential property for trustworthy releases.

implementation("com.google.guava:guava:33.0.0-jre")

Wiring into CI

In CI, run the release task only on tagged commits or a protected branch, so accidental pushes never publish.

if [ "$CI_COMMIT_TAG" ]; then gradle release; fi

Best Practices

Keep releases predictable:

  • One source of truth for the version
  • Never republish an existing release version
  • Automate tagging and the version bump

Quick Check

Test your understanding of release versioning.

Recap

You learned release automation:

  • Use SemVer for MAJOR.MINOR.PATCH
  • SNAPSHOT for dev, plain version for releases
  • Derive version from Git tags
  • Wrap build+tag+publish into a release task gated in CI

Frequently asked questions

Is the “Versioning and Release Automation” lesson free?

Yes — the full text of “Versioning and Release Automation” is free to read here on the web, and the Groovy & Gradle: JVM Automation and Build Engineering course includes 4 lessons in total. To practise it interactively (a built-in code editor and a 24/7 AI tutor) and unlock the rest of the Groovy & Gradle: JVM Automation and Build Engineering course, upgrade to CoddyKit PRO.

What will I learn in “Versioning and Release Automation”?

Automate semantic versioning, Git tagging, and release workflows in Gradle so every build is reproducibly identified and releases are one command away. You practise Groovy & Gradle: JVM Automation and Build Engineering with hands-on code you run directly in the browser, and a 24/7 AI tutor answers your questions as you work through the lesson.

Do I need any experience to start Groovy & Gradle: JVM Automation and Build Engineering?

No prior experience is required. Groovy & Gradle: JVM Automation and Build Engineering on CoddyKit is structured for beginners through advanced learners; this is — lesson 4 of 4, so you can start here or from the beginning and move at your own pace.

How long does the “Versioning and Release Automation” lesson take?

Most CoddyKit lessons take about 5–10 minutes. Each one is bite-sized and interactive, so you make steady progress and pick up exactly where you left off across the web and the app.

Can I write and run code in this Groovy & Gradle: JVM Automation and Build Engineering lesson?

Yes. Every Groovy & Gradle: JVM Automation and Build Engineering lesson includes a built-in code editor, so you write and run real code right in your browser and get instant AI feedback — no local setup required.

All lessons in this course

  1. Packaging JARs, WARs, EARs
  2. Publishing to Repositories
  3. CI/CD Integration
  4. Versioning and Release Automation
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