Changelog

Version 2023-07-draft

Removed scoring objective; this now always is "maximize".
Removed scoring keyword from problem.yaml.
Python 3 is now used for .py files; for backward compatibility .py2 can still be used for Python 2.
Clarify various things: sample files for interactive problems, testdata.yaml inheritance.
Updated the CC BY-SA license key to mean version 4.0.
Allow either a build or run script to be present.
Change specification of time limit multipliers and allow to explicitly specify a problem time limit.
Add a multi-pass problem type.
Support invalid testdata that validators must fail on.
Only allow a single output validator, remove validator_flags from problem.yaml, update {input,output}_validator_flags in testdata.yaml.
Make name required and allow a map from language code to name in that language.
Add uuid to problem.yaml.
Add languages to problem.yaml.
Add support for Markdown problem statements.
Change languages: and keywords: in problem.yaml to be lists of strings rather than a string of space separated words.
Clarified when code limit is applied in the case of included code
Make uuid required in problem.yaml.
Add /submissions/rejected directory.
Clarify working directories for submissions and validators.