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Upgrade database infrastructure: This is a system operations priority.
Status: in progress
PHP/tapir to PERL/Catalyst: Complete the conversion of PHP code to provide modularity, consistency, and improved maintainability of key parts of arXiv codebase. Migrate functions away from old PHP/Tapir codebase and into Perl/Catalyst (will mostly be done by end of 2016 but a few tasks remain).
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