Bump version to 0.4.0

[acoliver]

Summary

Prepares the 0.4.0 release. Only the package version moves; Cargo.lock was regenerated by a build rather than hand-edited.

The minor bump reflects the new transcript text-selection system rather than a patch-level fix.

Included since 0.3.8

• Native transcript text selection and copy (Change copy/paste to traditional select and copy behavior #151, Add native transcript text selection and copy #225): cross-message drag selection over rich markdown, virtualized transcript with off-screen copy reconstruction, safe link activation with click-versus-drag arbitration, drag autoscroll, whole-transcript select-all, Escape clear, and UAX Add a setting to configure the conversation export directory #29 word-granular dragging
• Selectable and copyable thinking content (Make displayed thinking blocks selectable and copyable #224, Make displayed thinking selectable and copyable #228), gated by one predicate shared across rendering, leaf counting, selection identity, and the copy document, and now honoring the emoji filter
• Reasoning effort as a setting rather than a reinterpreted number (Drive model parameter UI from declared capabilities, and treat reasoning effort as its own axis #219, Make reasoning effort a setting instead of a number reinterpreted as one #221)
• ChatGPT/Codex sign-in and the Responses websocket transport (Add ChatGPT/Codex models with browser and device-code sign-in, over the Responses WebSocket protocol #214, Add ChatGPT/Codex models with browser and device-code sign-in, over the Responses WebSocket protocol #217)
• Streams that run as long as bytes keep arriving (Chat stream dies mid-generation on long turns: 2-minute hard HTTP timeout kills SSE stream, misleading "error decoding response body", partial output lost #213, Let streams run as long as bytes keep arriving (Fixes #213) #215)

Verification

• cargo build
• cargo test --lib: 1,182 passed, 0 failed, 1 ignored
• cargo fmt --all -- --check
• cargo xtask guard
• git diff --check

Release steps after merge

Tag v0.4.0 on main and push it, which triggers .github/workflows/release.yml to build and publish macOS arm64, Linux x86_64, and Windows x86_64 artifacts and update the Homebrew tap.

Summary by CodeRabbit

• Chores
  • Updated the package version from 0.3.8 to 0.4.0.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Team

Run ID: c2ef5c1f-a1a3-4232-9073-043ccaa2fb5d

📥 Commits

Reviewing files that changed from the base of the PR and between bf68e4a and 9d1160b.

⛔ Files ignored due to path filters (1)

• Cargo.lock is excluded by !**/*.lock

📒 Files selected for processing (1)

• Cargo.toml

Included review availability: Your plan provides up to 1 included review per hour; 0 remain after this review.

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📝 Walkthrough

Walkthrough

The package version in Cargo.toml was updated from 0.3.8 to 0.4.0.

Changes

Package Version Update

Layer / File(s)	Summary
Update package version Cargo.toml	The package version changes from 0.3.8 to 0.4.0.

Estimated code review effort: 1 (Trivial) | ~2 minutes

Merge Risk: ⚪ Minimal · up to 9d116

This release-preparation change updates package version metadata only, with no actionable merge-blocking risk remaining after normal checks and review.

Poem

A rabbit checks the version line
From three-eight hops to four-oh-nine?
No, four-oh shines
The package aligns
And the burrow builds fine

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly and concisely describes the primary change: updating the package version to 0.4.0.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 0…
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

Full details: Docstring Coverage

Explanation

No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 0 files. (1 skipped: 1 unsupported.)

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch release-0.4.0

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