v0.23.0 React Performance Improvement

v0.23.0 — Release Notes (2026-01-28)

Summary:
This release adds a set of foundational UI features (File Tree, Tab Management, Editor, AI Panel), introduces React-side performance tooling, and completes a state-management migration to improve runtime responsiveness. Several stability fixes and dependency updates are included.

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Highlights ✅

• New core UI features — Implemented the primary UI components and their logic: File Tree, Tab Management, Editor, and AI Panel. (PR: #291)

  • Intent: Provide a solid, modular foundation for editing workflows and AI-assisted interactions within the app.
  • Benefit: Clearer separation of concerns, easier extension, and improved UX for multi-file workflows.

• React performance monitoring — Added a ReactScan component (commit ce7b977) to observe and profile render behavior.

  • Intent: Make it easier to detect expensive renders and regressions during development and QA.
  • Benefit: Faster iteration on performance fixes and measurable metrics for improvement.

• State-management migration — Migrated from zustand to valtio to improve React performance and simplify reactive state patterns (PR: #292).

  • Intent: Reduce render overhead and align on a lighter-weight reactive model.
  • Dependency change: bumped valtio from 2.1.2 → 2.3.0 in package.json and pnpm-lock.yaml (commit 83a11b6).

• Bug fixes — Addressed multiple stability and UX issues across the new UI components and editor workflows.

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What changed 🔧

• feat: Implemented File Tree, Tab Management, Editor, AI Panel and related logic — @NobukiAkiyama (PR #291)
• perf: Added ReactScan performance observation component (commit ce7b977)
• perf/chore: Migrated state management from zustand → valtio (PR #292) and bumped valtio to 2.3.0 (commit 83a11b6)
• fix: Various bug fixes improving stability and edge cases in UI and editor flows

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Installation / Local run ⚡

1. Install dependencies with the lockfile preserved:
   • pnpm install --frozen-lockfile
2. Start the dev server:
   • pnpm run dev

⚠️ Note: Because of the valtio version bump, use --frozen-lockfile to match the lockfile and avoid unexpected resolutions.

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Links 🔗

• Repository: https://github.com/Stasshe/Pyxis-CodeCanvas
• Full changelog: v0.22.3...v0.23.0
• PRs:
  • Feature: #291 — New UI components (File Tree, Tabs, Editor, AI Panel)
  • Perf: #292 — Migrate zustand → valtio
• Related commits: ce7b977 (ReactScan), 83a11b6 (valtio bump)

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Contributors ✨

• @NobukiAkiyama — first contribution: implemented core UI components (PR #291)
• @Stasshe — performance migration and optimizations (PR #292)

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Full changelog

See: v0.22.3...v0.23.0 — v0.22.3...v0.23.0