v0.6.0

Changed

• Put tags in <details> on the problem page by default
• Now a testcase's checker output, output and answer is stored in base64 (along the compiler output)
• Vendored golang-migrate/migrate with go function migrations

Added

• Zero indexed patterns in problem_yaml
• task_yaml stub, communication, explicit scores support
• Discord webhook on errors
• Show non-standard IO files on problem page
• Problemset table
• Edit interface for problems
• Problem author column
• Perfectly accurate compilation commands to the problem page
• top 5 solutions to the problem ranklist by time, mem, size
• Problemset ranklist

Fixed

• Category links in problemset
• glue solver count calculation
• testlib checker points calculation
• Google auth
• Profile link on problem ranklist
• Fixed common errors on production (mostly triggered by search bots)