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tRPC End-to-End Type Safe APIs · Lesson

Versioning and Publishing Shared tRPC Packages

Manage internal package versions, changesets, and publishing workflows so your shared tRPC types stay consistent across a growing monorepo.

Versioning and Publishing Shared tRPC Packages is a free tRPC End-to-End Type Safe APIs 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 tRPC End-to-End Type Safe APIs learning path, one of 4 lessons in the course, and your progress syncs across the web and the CoddyKit app.

Why Versioning Matters

In a monorepo, many apps depend on shared packages such as your tRPC router types. Without disciplined versioning, a breaking change in one package silently breaks every consumer.

Workspace Dependencies

Apps reference internal packages using the workspace protocol, so they always use the local source.

{
  "dependencies": {
    "@acme/api": "workspace:*"
  }
}

Semantic Versioning

Follow semver for shared packages:

  • patch — bug fixes
  • minor — backward-compatible features
  • major — breaking API changes

A changed tRPC input schema is often a breaking change.

Introducing Changesets

The changesets tool tracks intended version bumps. Each change records which packages changed and at what level.

npx changeset

Anatomy of a Changeset

A changeset is a small markdown file describing the bump and a summary that becomes a changelog entry.

---
'@acme/api': minor
---

Add new posts.search procedure

Versioning the Monorepo

Run the version command to consume all pending changesets, bump package.json files, and update changelogs.

npx changeset version

Publishing Packages

If you publish to a registry, the publish command pushes only the packages that changed.

npx changeset publish

Internal-Only Packages

Many monorepos never publish to npm. Mark shared packages as private so they are versioned for clarity but never accidentally published.

{
  "name": "@acme/api",
  "private": true
}

Coordinating Breaking Changes

When a tRPC router changes shape, a major bump signals consumers to update. Because types flow through the monorepo, TypeScript will flag every broken call site at build time.

Automating with CI

A common workflow opens a release pull request automatically whenever changesets are merged, so versioning never depends on someone remembering to run it.

- uses: changesets/action@v1
  with:
    version: npx changeset version

Best Practices

Keep releases sane:

  • Require a changeset in every feature PR
  • Treat schema changes as breaking
  • Keep changelogs human-readable
  • Let CI own the version bump

Quick Check

Test your versioning knowledge.

Recap

You learned to version shared tRPC packages:

  • Use the workspace protocol for internal deps
  • Follow semver; schema changes are breaking
  • Track bumps with changesets
  • Automate releases in CI

Your monorepo now evolves safely across many consumers.

Frequently asked questions

Is the “Versioning and Publishing Shared tRPC Packages” lesson free?

Yes — the full text of “Versioning and Publishing Shared tRPC Packages” is free to read here on the web, and the tRPC End-to-End Type Safe APIs 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 tRPC End-to-End Type Safe APIs course, upgrade to CoddyKit PRO.

What will I learn in “Versioning and Publishing Shared tRPC Packages”?

Manage internal package versions, changesets, and publishing workflows so your shared tRPC types stay consistent across a growing monorepo. You practise tRPC End-to-End Type Safe APIs 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 tRPC End-to-End Type Safe APIs?

No prior experience is required. tRPC End-to-End Type Safe APIs 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 Publishing Shared tRPC Packages” 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 tRPC End-to-End Type Safe APIs lesson?

Yes. Every tRPC End-to-End Type Safe APIs 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. Setting Up a tRPC Monorepo
  2. Code Sharing and Reusability
  3. Extending tRPC Functionality
  4. Versioning and Publishing Shared tRPC Packages
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