This page tracks all major updates, revisions, and additions to the AI Developer Toolkit Guide, helping you stay current with the latest information and identify what’s changed.
April 2026 - Latest Updates
Cursor 3.0 - Agents Window, Design Mode, Agent Tabs, /worktree, /best-of-n, enterprise features
Claude Code v2.1.84–92 - PowerShell tool (Windows), Bedrock setup wizard, /powerup command, per-model cost breakdown, conditional hooks
Codex App & CLI - Thread search, theming, revamped automations (local/worktree), first-class plugins, sub-agents
Changelog links:
March 2026 - Major Model and Platform Updates
GPT-5.4 released - First general-purpose model with native computer-use, 1M context, default across all Codex/ChatGPT surfaces
Cursor Composer 2 - Frontier coding model (MoE on Kimi K2.5), $0.50/$2.50 per 1M tokens
Codex Security - Application security agent in research preview, 1.2M commits scanned, 792 critical findings
Cursor Automations - Always-on agents with event triggers (Slack, Linear, GitHub, PagerDuty)
Cursor Self-Hosted Cloud Agents - Enterprise: code stays in customer infrastructure
August 2025 - Model Updates
GPT-5 guidance added across model selection, configuration, comparison, and FAQ.
July 2025 - Major Release
Version 1.0.0 - Initial comprehensive release
Major Additions:
Key Features:
Supported Versions:
| Date | Section | Changes | Impact |
|---|---|---|---|
| 2026-04-05 | Cursor | Added Cursor 3.0 (Agents Window, Design Mode, Agent Tabs) | High |
| 2026-04-05 | Claude Code | Added v2.1.84–v2.1.92 (PowerShell, Bedrock wizard, /powerup) | High |
| 2026-04-05 | Codex | Added Codex App/CLI updates (thread search, theming, automations) | Medium |
| 2026-04-05 | Models | Updated GPT-5.3-Codex to GPT-5.4, Composer 1 to Composer 2 | High |
| Date | Section | Changes | Impact |
|---|---|---|---|
| 2026-04-05 | Models | GPT-5.4 released as default for Codex/ChatGPT (1M context, computer-use) | High |
| 2026-04-05 | Cursor | Added Composer 2, Automations, Self-Hosted Cloud Agents, Marketplace Plugins | High |
| 2026-04-05 | Codex | Added Codex Security research preview, Windows app, CLI 0.117-0.118 | High |
| 2026-04-05 | Claude Code | Added v2.1.81–v2.1.86 (—bare, transcript search, managed-settings) | Medium |
| Date | Section | Changes | Impact |
|---|---|---|---|
| 2026-02-03 | Claude Code | Added v2.1.x changelog (v2.1.17-v2.1.30) | High |
| 2026-02-03 | Cursor | Added v2.3-v2.4 changelog with Subagents, Skills | High |
| 2026-02-03 | Models | Updated GPT-5.1-Codex-Max to GPT-5.2 Codex everywhere | Medium |
| 2026-02-03 | Models | Fixed Opus 4.5 positioning as THE BEST model | High |
| Date | Section | Changes | Impact |
|---|---|---|---|
| 2025-11-24 | Models | Claude Opus 4.5 released as default (>80% SWE-Bench) | High |
| 2025-11-19 | Models | GPT-5.2 Codex for bug fixing and UI | Medium |
| 2025-10-29 | Cursor Features | Cursor v2.0 with Multi-Agents | High |
| 2025-10-29 | Cursor Features | Cursor Composer 1 model (4x faster) | High |
| Date | Section | Changes | Impact |
|---|---|---|---|
| 2025-08-07 | Models | Added GPT-5 guidance and references | High |
| Date | Section | Changes | Impact |
|---|---|---|---|
| 2025-07-17 | All | Initial release | Major |
| 2025-07-16 | Models | Added o3 model details | Medium |
| 2025-07-15 | Pricing | Updated subscription tiers | Medium |
| 2025-07-14 | MCP | Added 40 server guides | Major |
| 2025-07-10 | Enterprise | Security compliance section | High |
AI Model Changes
Current Models (April 2026):
Deprecated/Obsolete:
New Features Documented (September 2025):
Previous Features:
Updated Sections:
New Features Documented:
Updated Sections:
Important Changes
⚠️ Breaking Changes:
Claude Code CLI
Cursor
Pricing
| Content Type | Source | Last Verified |
|---|---|---|
| Pricing | Official websites | July 17, 2025 |
| Features | Product documentation | July 17, 2025 |
| Models | API documentation | July 16, 2025 |
| MCP Servers | GitHub repositories | July 14, 2025 |
| Tips & Tricks | Community + testing | July 15, 2025 |
Official Documentation Review
Community Validation
Hands-on Testing
Expert Review
Upcoming Content
August 2025:
September 2025:
| Section | Planned Date | Description |
|---|---|---|
| Video Guides | August 2025 | Embedded video tutorials |
| Local Models | August 2025 | Self-hosted AI guides |
| Advanced MCP | September 2025 | Custom server development |
| Case Studies | October 2025 | Real-world implementations |
Subscribe to our feed:
/en/feed.xml/en/atom.xml/en/feed.jsonWatch the repository:
Monthly digest available:
All content includes version tags:
---version: 1.0.0last_updated: 2025-07-17tools: cursor: ">=0.40.0" claude_code: ">=0.8.0"---| Feature/Content | Status | Deprecation Date | Removal Date |
|---|---|---|---|
| GPT-4 examples | Deprecated | July 2025 | October 2025 |
| Old pricing tiers | Legacy | July 2025 | December 2025 |
| Claude 3.x guides | Legacy | July 2025 | January 2026 |
Documentation Team
Content Creation:
Technical Review:
Community Input:
Want to contribute? Here’s how:
Report Issues
Submit Updates
Share Experiences
| Metric | Target | Current | Status |
|---|---|---|---|
| Accuracy | 99% | 99.2% | ✅ |
| Completeness | 95% | 96.5% | ✅ |
| Clarity | 90% | 92.1% | ✅ |
| Timeliness | < 7 days | 3 days | ✅ |
User Feedback Stats
July 2025:
Common Themes:
Previous versions available at:
/archive/v0.9/ - Beta documentation/archive/v0.8/ - Alpha documentation/archive/drafts/ - Original draftsWhen content significantly changes:
Report Issues or Suggest Updates
Documentation Issues:
Feature Requests:
Urgent Corrections:
This tracker is updated with every significant documentation change. Last update: April 24, 2026