v0.9.0 — Major Refactoring (2026-02-13)

Type: refactor

Impact: High

Summary

Comprehensive codebase refactoring laying the groundwork for v1.0.0. This update focuses on code quality, maintainability, and developer experience without breaking existing functionality.

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🔧 Backend Changes

Architecture Improvements

• Extracted broadcastMembers helper — Cleaner hub implementation
• Moved writePump to Client — Better encapsulation of client logic
• Graceful shutdown — SIGINT/SIGTERM handling for clean exits

Dependencies

• Updated gorilla/websocket to v1.5.3 (latest stable)

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🎨 Frontend Changes

Code Quality

• Complete restructuring — 'use strict' mode throughout
• Modular architecture — Split into app.*.js modules:
  • app.config.js — Configuration and capabilities
  • app.media.js — Media stream handling
  • app.peers.js — PeerConnection management
  • app.signaling.js — WebSocket communication
  • app.stats.js — Connection statistics
  • app.ui.js — UI rendering and interaction

Best Practices

• Centralized DOM references — Single source of truth for DOM elements
• Magic value extraction — All constants defined at module level
• Enhanced error logging — No empty catch blocks
• Unified formatting — 2-space indentation across HTML/CSS/JS

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🔨 CI & Tooling

Testing

• Multi-version Go matrix — CI tests against Go 1.22 and 1.23
• Added staticcheck — Additional static analysis

Configuration

• .editorconfig — Consistent editor settings across IDEs
• Multi-stage Dockerfile — Optimized build for production

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📁 Files Changed

internal/signal/hub.go        ← Architecture improvements
cmd/server/main.go            ← Graceful shutdown
web/app.js                    → Split into modules
web/app.*.js                  ← New modular files
web/index.html                ← Updated for modules
web/styles.css                ← Formatting cleanup
.github/workflows/ci.yml      ← Added staticcheck, matrix
Dockerfile                    ← Multi-stage build
.editorconfig                 ← New file

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⚠️ Breaking Changes

None — All changes are backward compatible. Existing deployments continue to work without modification.

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🔮 Next Steps

This refactoring prepares the codebase for:

• v1.0.0 stable release
• Enhanced test coverage
• Production deployment tooling

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