Version Packages (beta)

[github-actions]

This PR was opened by the Changesets release GitHub action. When you're ready to do a release, you can merge this and publish to npm yourself or setup this action to publish automatically. If you're not ready to do a release yet, that's fine, whenever you add more changesets to main, this PR will be updated.

⚠️⚠️⚠️⚠️⚠️⚠️

main is currently in pre mode so this branch has prereleases rather than normal releases. If you want to exit prereleases, run changeset pre exit on main.

⚠️⚠️⚠️⚠️⚠️⚠️

Releases

@modelcontextprotocol/client@2.0.0-beta.1

Patch Changes

• #2402 a400259 Thanks @felixweinberger! - First beta release of SDK v2 with support for the MCP 2026-07-28 specification
  revision. See the migration guides for upgrading from v1
  (docs/migration/upgrade-to-v2.md) and adopting the 2026-07-28 revision
  (docs/migration/support-2026-07-28.md).

@modelcontextprotocol/codemod@2.0.0-beta.1

Patch Changes

• #2402 a400259 Thanks @felixweinberger! - First beta release of SDK v2 with support for the MCP 2026-07-28 specification
  revision. See the migration guides for upgrading from v1
  (docs/migration/upgrade-to-v2.md) and adopting the 2026-07-28 revision
  (docs/migration/support-2026-07-28.md).

@modelcontextprotocol/core@2.0.0-beta.1

Patch Changes

• #2402 a400259 Thanks @felixweinberger! - First beta release of SDK v2 with support for the MCP 2026-07-28 specification
  revision. See the migration guides for upgrading from v1
  (docs/migration/upgrade-to-v2.md) and adopting the 2026-07-28 revision
  (docs/migration/support-2026-07-28.md).

@modelcontextprotocol/express@2.0.0-beta.1

Patch Changes

• #2402 a400259 Thanks @felixweinberger! - First beta release of SDK v2 with support for the MCP 2026-07-28 specification
  revision. See the migration guides for upgrading from v1
  (docs/migration/upgrade-to-v2.md) and adopting the 2026-07-28 revision
  (docs/migration/support-2026-07-28.md).
• Updated dependencies [a400259]:
  • @modelcontextprotocol/server@2.0.0-beta.1

@modelcontextprotocol/fastify@2.0.0-beta.1

Patch Changes

• #2402 a400259 Thanks @felixweinberger! - First beta release of SDK v2 with support for the MCP 2026-07-28 specification
  revision. See the migration guides for upgrading from v1
  (docs/migration/upgrade-to-v2.md) and adopting the 2026-07-28 revision
  (docs/migration/support-2026-07-28.md).
• Updated dependencies [a400259]:
  • @modelcontextprotocol/server@2.0.0-beta.1

@modelcontextprotocol/hono@2.0.0-beta.1

Patch Changes

• #2402 a400259 Thanks @felixweinberger! - First beta release of SDK v2 with support for the MCP 2026-07-28 specification
  revision. See the migration guides for upgrading from v1
  (docs/migration/upgrade-to-v2.md) and adopting the 2026-07-28 revision
  (docs/migration/support-2026-07-28.md).
• Updated dependencies [a400259]:
  • @modelcontextprotocol/server@2.0.0-beta.1

@modelcontextprotocol/node@2.0.0-beta.1

Patch Changes

• #2402 a400259 Thanks @felixweinberger! - First beta release of SDK v2 with support for the MCP 2026-07-28 specification
  revision. See the migration guides for upgrading from v1
  (docs/migration/upgrade-to-v2.md) and adopting the 2026-07-28 revision
  (docs/migration/support-2026-07-28.md).
• Updated dependencies [a400259]:
  • @modelcontextprotocol/server@2.0.0-beta.1

@modelcontextprotocol/server@2.0.0-beta.1

Patch Changes

• #2402 a400259 Thanks @felixweinberger! - First beta release of SDK v2 with support for the MCP 2026-07-28 specification
  revision. See the migration guides for upgrading from v1
  (docs/migration/upgrade-to-v2.md) and adopting the 2026-07-28 revision
  (docs/migration/support-2026-07-28.md).

@modelcontextprotocol/server-legacy@2.0.0-beta.1

Patch Changes

• #2402 a400259 Thanks @felixweinberger! - First beta release of SDK v2 with support for the MCP 2026-07-28 specification
  revision. See the migration guides for upgrading from v1
  (docs/migration/upgrade-to-v2.md) and adopting the 2026-07-28 revision
  (docs/migration/support-2026-07-28.md).

---

This change is 

[snyk-io]

✅ Snyk checks have passed. No issues have been found so far.

Status	Scan Engine	Critical	High	Medium	Low	Total (0)
✅	Open Source Security	0	0	0	0	0 issues

💻 Catch issues earlier using the plugins for VS Code, JetBrains IDEs, Visual Studio, and Eclipse.

[snyk-io]

✅ Snyk checks have passed. No issues have been found so far.

Status	Scan Engine	Critical	High	Medium	Low	Total (0)
✅	Open Source Security	0	0	0	0	0 issues

💻 Catch issues earlier using the plugins for VS Code, JetBrains IDEs, Visual Studio, and Eclipse.

[kilo-code-bot]

Code Review Summary

Status: No Issues Found | Recommendation: Merge

Files Reviewed (19 files)

• .changeset/pre.json - 0 issues (Changesets-managed prerelease bookkeeping; cosmetic re-indent + changesets array populated with "beta-release")
• packages/client/CHANGELOG.md, packages/client/package.json - mechanical version bump 2.0.0-beta.0 → 2.0.0-beta.1
• packages/codemod/CHANGELOG.md, packages/codemod/package.json - mechanical version bump
• packages/core/CHANGELOG.md, packages/core/package.json - mechanical version bump
• packages/middleware/express/CHANGELOG.md, packages/middleware/express/package.json - mechanical version bump
• packages/middleware/fastify/CHANGELOG.md, packages/middleware/fastify/package.json - mechanical version bump
• packages/middleware/hono/CHANGELOG.md, packages/middleware/hono/package.json - mechanical version bump
• packages/middleware/node/CHANGELOG.md, packages/middleware/node/package.json - mechanical version bump
• packages/server-legacy/CHANGELOG.md, packages/server-legacy/package.json - mechanical version bump
• packages/server/CHANGELOG.md, packages/server/package.json - mechanical version bump

This is an automated Changesets release PR. All changes are tool-generated: version bumps (2.0.0-beta.0 → 2.0.0-beta.1), CHANGELOG entries, and a standard .changeset/pre.json prerelease update. No source code, schema, transport, or API-surface changes are present, so no code-quality issues apply. Note: the referenced beta-release changeset file could not be independently verified (file-content reads are disallowed in review mode), but its existence is the normal prerequisite for this tool-generated PR.

---

_{Reviewed by hy3-20260706:free · Input: 60.8K · Output: 3.4K · Cached: 138.8K}

_{Review guidance: REVIEW.md from base branch main}