All 99 categories. You can view change histries here.
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Abstraction Admin Interface Analytics API Builder and Discovery
Assets Authentication and OAuth Authorization Automation
Caching Captchas and anti-spam CLI Builder CLI Utilities
Cloud CMS Code Analysis and Metrics Code Highlighting
Concurrency and Parallelism Configuration Core Extensions Country Data
CRM Cryptocurrencies and Blockchains Dashboards Data Processing and ETL
Data Visualization Database Drivers Database Tools Date and Time Processing
Debugging Tools Decorators DevOps Tools Diff
Documentation E-Commerce and Payments Ebook Email
Encryption Environment Management Error Handling Feature Flippers and A/B Testing
File Upload File System Form Builder Game Development
Gem Generators Geolocation Git Tools GraphQL
GUI HTML/XML Parsing HTTP Clients and tools Image Processing
Implementations/Compilers Internationalization IRB Logging
Machine Learning Markdown Processors Measurements Mobile Development
Money Music and Sound Natural Language Processing Navigation
Networking Optimizations ORM/ODM ORM/ODM Extensions
Package Management Pagination PDF Performance Monitoring
Presentation Programs Process Monitoring Processes Profiler and Optimization
QR Queues and Messaging Rails Application Generators Robotics
RSS Scheduling Scientific Search
Security SEO Social Networking Spreadsheets and Documents
State Machines Static Site Generation Template Engine Testing
Third-party APIs Video View helpers Web Crawling
Web Frameworks Web Servers WebSocket