chore(main): release 0.3.8

[a2a-bot]

🤖 I have created a release beep boop

0.3.8 (2026-01-15)

⚠ BREAKING CHANGES

• use ProtoJSON for REST transport (#292)

Features

• use case-insensitive transport protocol name comparison in ClientFactory (5246067)

Bug Fixes

• add typesVersions to support legacy module resolution (#288) (6499e29)
• use ProtoJSON for REST transport (#292) (d2efc4c)

---

This PR was generated with Release Please. See documentation.

[gemini-code-assist]

Summary of Changes

Hello @a2a-bot, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request is an automated release for version 0.4.0 of the @a2a-js/sdk. It primarily updates the project's version number across configuration files and documents a new feature that enhances the ClientFactory by making transport protocol name comparisons case-insensitive, improving the robustness and flexibility of protocol handling.

Highlights

• New Release: This pull request introduces version 0.4.0 of the @a2a-js/sdk.
• Feature Addition: The new release includes a feature that enables case-insensitive comparison of transport protocol names within the ClientFactory.

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[gemini-code-assist]

Code Review

This pull request is for the 0.4.0 release. The version bumps and changelog updates are correct.

The main feature of this release is case-insensitive transport protocol name comparison. I've reviewed the implementation for this feature in src/client/factory.ts (which is not in this PR's diff) and found a critical issue.

The new CaseInsensitiveMap does not normalize keys provided in its constructor. This happens in createFromAgentCard at line 102. This will cause transport matching to fail if protocol names have different casing. I recommend fixing this before the release by adding a constructor to CaseInsensitiveMap that normalizes keys on initialization.

// Suggested fix for CaseInsensitiveMap in src/client/factory.ts
constructor(entries?: readonly (readonly [string, T])[] | null) {
  super();
  if (entries) {
    for (const [key, value] of entries) {
      this.set(key, value); // Uses the overridden set method
    }
  }
}

I also recommend adding a test case for CaseInsensitiveMap that constructs it with entries having keys with different casing to ensure they are handled correctly.

Additionally, the order of transports in createFromAgentCard at line 102 should be reviewed. The preferredTransport should probably be processed last to ensure it has priority over any case-insensitive duplicates in additionalInterfaces.

Since the file is not in the diff, I'm providing this feedback here. I've found no other issues.

[a2a-bot]

🤖 Created releases:

• v0.3.8

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