Release v0.4.8: Fixed GitHub API rate limiting

Documentation Updates:
- Updated README.md with v0.4.8 release notes
- Updated CHANGELOG.md with comprehensive change details
- Highlighted PyPI and npm registry integration fixes

Key Improvements:
- Fixed GitHub API 403 rate limit errors
- Kimi now uses PyPI API for version detection
- Qwen now uses npm registry for version detection
- Much more reliable with no rate limits

This release resolves the GitHub API rate limiting issue that was
causing 403 errors when checking agent versions. By using the proper
package managers (PyPI for Kimi, npm for Qwen), version detection is
now faster, more reliable, and aligned with actual installation methods.

All quality checks passing:
- Tests: go test ./... ✅
- Build: go build ✅
- Linting: golangci-lint run ✅

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <[email protected]>

Author: kevinelliott

CHANGELOG.md

@@ -7,6 +7,49 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [v0.4.8] - 2025-10-25
+
+### Fixed
+- **GitHub API Rate Limiting (403 Errors)**: Resolved by using proper package managers
+  - Kimi and Qwen were hitting GitHub's API rate limit (60 requests/hour unauthenticated)
+  - Changed to use the correct source for each package instead of GitHub releases
+
+### Added
+- **PyPI Package Manager Support**
+  - New `getPyPILatestVersion()` function in version.go
+  - Fetches from `https://pypi.org/pypi/{package}/json`
+  - No rate limits, highly reliable
+  - Used for Python packages like kimi-cli
+
+### Changed
+- **Kimi CLI Version Detection**
+  - Package manager: `github` → `pypi`
+  - Package name: `MoonshotAI/kimi-cli` → `kimi-cli`
+  - Now fetches from PyPI (aligns with `uv tool install kimi-cli`)
+  - Eliminates GitHub API 403 errors
+
+- **Qwen Version Detection**
+  - Package manager: `github` → `npm`
+  - Package name: `QwenLM/qwen-code` → `@qwen-code/qwen-code`
+  - Now fetches from npm registry (aligns with `npm install -g @qwen-code/qwen-code`)
+  - Eliminates GitHub API 403 errors
+
+- **Linter Configuration**
+  - Added dupl exclusion for `internal/registry/` path
+  - Allows intentional code duplication across package manager HTTP functions
+
+### Benefits
+- No more API rate limit errors when checking versions
+- Faster version checks (no rate limiting delays)
+- More reliable (uses authoritative source for each package)
+- Aligns version detection with actual installation methods
+
+### Technical Details
+- PyPI API endpoint: `https://pypi.org/pypi/{package}/json`
+- npm API endpoint: `https://registry.npmjs.org/{package}/latest` (existing)
+- Both have much higher rate limits than GitHub (60/hour)
+- Tested and verified with `agentpipe agents list --outdated`
+
 ## [v0.4.7] - 2025-10-25
 
 ### Changed

README.md

@@ -96,23 +96,27 @@ All agents now use a **standardized interaction pattern** with structured three-
 
 See [CHANGELOG.md](CHANGELOG.md) for detailed version history and release notes.
 
-**Latest Release**: v0.4.7 - Improved Kimi version detection
+**Latest Release**: v0.4.8 - Fixed GitHub API rate limiting
 
-**What's New in v0.4.7**:
+**What's New in v0.4.8**:
 
-🔍 **Improved Kimi CLI Version Detection**:
-- **GitHub Releases Integration**: Now uses GitHub releases API for reliable version checking
-  - Changed from custom parsing to standard GitHub releases
-  - More reliable and consistent with other agents
-  - Fetches latest version from `MoonshotAI/kimi-cli` releases
-  - Better update notifications and version tracking
+🚀 **Fixed GitHub API Rate Limiting**:
+- **PyPI Integration for Kimi**: Now uses PyPI API instead of GitHub releases
+  - No more 403 rate limit errors
+  - Fetches from `https://pypi.org/pypi/kimi-cli/json`
+  - More reliable and aligns with actual installation method (uv/pip)
+- **npm Registry for Qwen**: Uses npm registry instead of GitHub releases
+  - Direct API access without rate limiting
+  - Package: `@qwen-code/qwen-code`
+  - Aligns with actual installation method
+- **Benefits**: Faster, more reliable version checking with no rate limits
+
+**Previous Release - v0.4.7** (2025-10-25): Improved Kimi version detection
+- Initial attempt using GitHub releases (now superseded by PyPI)
 
 **Previous Release - v0.4.6** (2025-10-25): Groq Code CLI support
 - Full support for Groq Code CLI powered by Groq LPUs
 - Fast inference with temperature configuration support
-
-**Previous Release - v0.4.5** (2025-10-25): Enhanced Kimi CLI installation
-- Explicit Python 3.13 specification for Kimi install/upgrade commands
 - Dedicated security workflows (Trivy and CodeQL)
 - Enhanced README badges with downloads and stars metrics
 - Fixed Windows test failures for platform-specific installations