api-changelog-versioning

name	api-changelog-versioning
description	Creates comprehensive API changelogs documenting breaking changes, deprecations, and migration strategies for API consumers. Use when managing API versions, communicating breaking changes, or creating upgrade guides.
license	MIT

API Changelog & Versioning

Document API changes with clear migration paths and deprecation timelines.

Changelog Structure

# API Changelog

## v3.0.0 (2025-01-15) - Breaking Changes

### Breaking Changes
- Response format now follows JSON:API specification
- Authentication switched from API tokens to JWT Bearer

### Migration Steps
1. Update base URL to `/api/v3`
2. Replace `Authorization: Token xxx` with `Authorization: Bearer xxx`
3. Update response parsing for new envelope format

## v2.5.0 (2024-12-01) - Features

### New Features
- Webhook support for order events
- Batch operations endpoint
- Field filtering via `?fields=` parameter

### Improvements
- 56% faster response times on /products
- Enhanced error messages with field-specific suggestions

Deprecation Schedule

Version	Status	Support Until
v3.x	Current	Full support
v2.x	Maintenance	2025-06-01
v1.x	EOL	Unsupported

Version Support Policy

• Current: Full support, new features
• Maintenance: Bug fixes and security only
• EOL: No support, remove from docs

Migration Guide Template

## Migrating from v2 to v3

### Before (v2)
```json
{ "user_name": "john" }

After (v3)

{ "data": { "type": "user", "attributes": { "name": "john" } } }

Steps

1. Update SDK to v3.x
2. Modify response handlers
3. Test in staging environment
4. Update production

## Best Practices

- Provide 3-6 months deprecation notice
- Include before/after code examples
- Mark breaking changes prominently
- Maintain backward compatibility when feasible
- Version via URL path (`/api/v1/`) for clarity