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Modernize the search interface, add facets, include author identifiers - The arXiv search interface could be improved to follow current best practices using facets and better result ordering.
- Replace and improve alerting system - Replace the email alert system to allow easy subscribe/unsubscribe via web interface tied to user accounts, ensure scalability and allow customization. The current code is very old and hard to maintain, the bulk of it should be rewritten.
2015 Roadmap was revised and re-posted in June 2105.