chore(main): release showcase 0.38.0

[tambo-bot]

🤖 I have created a release beep boop

0.38.0 (2026-03-01)

Features

• docs: phase 6 - live demos, DemoPreview, and docs polish for react-ui-base (#2515) (40fc632)
• ui: finalize message input behavior and contextual showcase prompts (#2447) (00434a5)

Bug Fixes

• dev: update custom condition usage for hmr/dev/tsconfig (#2480) (71a141d)
• showcase: key TamboProvider on userContextKey to reset state on navigation (#2448) (7033294)

Miscellaneous Chores

• deps: bump @tailwindcss/postcss from 4.1.18 to 4.2.0 in the tailwind group (#2473) (7d9303b)
• deps: bump streamdown from 1.6.10 to 2.3.0 (#2344) (11f9f37)
• deps: bump the small-safe-packages group with 6 updates (#2470) (cb48c28)
• deps: bump the tiptap group with 9 updates (#2474) (f72e6c5)
• enable monorepo hot reload DX (#2427) (c72bb66)

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Project	Deployment	Actions	Updated (UTC)
cloud	Ready	Preview, Comment	Mar 1, 2026 11:02pm
showcase	Ready	Preview, Comment	Mar 1, 2026 11:02pm
tambo-docs	Ready	Preview, Comment	Mar 1, 2026 11:02pm

[charliecreates]

The release bump looks consistent, but showcase/package.json downgrades posthog-js (^1.347.0 → ^1.336.4), which is atypical for a patch release and should be either reverted or explicitly documented to avoid surprise regressions.

Additional notes (1)

• Maintainability | showcase/package.json:51-56
posthog-js is being downgraded from ^1.347.0 to ^1.336.4. That’s unusual for a release PR and can unintentionally reintroduce fixed bugs or break expectations for downstream lockfiles.

If this is intentional (e.g., regressions in newer versions), it should be called out explicitly in the changelog entry for 0.37.3 (or explained in the PR description) so consumers understand why the version moved backward.

Summary of changes

Release showcase@0.37.3

• Bumped Release Please manifest entry: "showcase": "0.37.2" → "0.37.3" in .config/release-please/.release-please-manifest.json.
• Updated showcase/CHANGELOG.md with a new 0.37.3 section (deps + test chores) and comparison link.
• Updated showcase/package.json version to 0.37.3.
• Changed dependency version in showcase/package.json: posthog-js ^1.347.0 → ^1.336.4 (a downgrade).