Timeline
Open-source plugin 'dont-let-me' released for Claude Code, Codex, and OpenCode
Claude Code now ships with Plan mode as a first-class safety rail for cross-file refactors
Claude Code skills feature introduced, allowing reusable instruction packs in ~/.claude/skills/
Plan mode and CLAUDE.md/skills introduced for Claude Code
Claude Code's Plan mode introduced as a safety rail for cross-
Claude Code adds iOS Simulator support for building and testing iOS apps from the terminal
GitHub Copilot reached 1.8M+ paid subscribers
Leaked screenshot suggests GitHub Copilot mobile app development, no official release date.
Launched new layered customization system informed by the study, using repo-level, path-specific, and custom agent files
Announced Copilot SDK shifting AI from chat to programmable execution layer.
Ecosystem
GitHub Copilot
Claude Code
Benchmarks
Evidence (15 articles)
Claude Opus 4.8 Launches Dynamic Workflows for Agentic Code
Jun 2, 2026Anthropic's Claude Code Adds Scheduled, Cloud-Based Task Execution
Mar 21, 2026Anthropic Launches Claude Code, a Specialized AI Coding Assistant
Apr 4, 2026Anthropic Targets $900B Valuation in $50B Funding Round
May 8, 2026JetBrains IDE Now Supports Codex Agent and MCP Server Management — Here's
Jul 8, 2026Emergent Raises at $1.5B Valuation for Vibe Coding IDE
Jul 15, 2026Stop Prompting Claude. Start Building Loops: Loop Engineering Explained
Jun 13, 2026CLAUDE.md Explained: How Anthropic's Agent Memory Works
May 12, 2026+ 7 more articles