2.58.0

• Added support for StarryCoding
• Added support for the codeforces.net mirror of Codeforces and fixed support for the codeforc.es mirror on problem pages
• Fixed the Lanqiao problem parser
• Fixed the Kattis parser for samples containing only output
• Changed the behavior of parsers that need to read PDFs (like the ones on UVa Online Judge) to parse as much of the problem as possible on Firefox, rather than crashing due to Firefox bug 1757836

2.57.1

• Added the X-Competitive-Companion header to HTTP requests sent by Competitive Companion to indicate to the receiving end that the request is coming from Competitive Companion (thanks @touhidurrr)

2.57.0

• Added support for CYEZOJ, 33OJ, Algotester, and SeriousOJ (thanks @langningchen for the CYEZOJ support)
• Fixed using the Hydro and DMOJ parsers on unsupported websites through the "Parse with" functionality and in custom rules
• Fixed the BAPS OJ problem parser and added a contest parser (thanks @touhidurrr)
• Fixed the yukicoder contest parser

2.56.0

• Added support for QBXTOJ and Universal Cup (thanks @touhidurrr for the QBXTOJ parser)
• Added support for LightOJ contests (thanks @touhidurrr)
• Fixed the Eolymp Basecamp parser (thanks @touhidurrr)

2.55.0

• Added support for oiClass, Le Quy Don Online Judge, VNOI Online Judge, and NBUT Online Judge
• Added support for the Challenge mode on Kattis
• Fixed the Timus Online Judge parser to work with the acm-judge.urfu.ru domain
• Fixed the Toph parser (thanks @touhidurrr)
• Fixed the AlgoZenith parser
• Fixed the Virtual Judge contest parser

2.54.0

• Added support for QQWhale
• Added support for the "Complete problemset" pages in Codeforces contests
• Improved performance of sending contest problems to external tools by sending them in parallel (thanks @rsalesc)
• Fixed the parsing of ACMP sample cases with mid-line whitespaces (thanks @touhidurrr)
• Fixed the Toph parser
• Fixed the input/output parsing on certain Codeforces problems

2.53.0

• Added support for Kilonova, PBInfo, InfoArena, and NerdArena (thanks @overanalytcl)
• Added support for parsing sample cases on UVA and UVALive problems on Virtual Judge (does not work on Firefox until Firefox bug #1757836 is resolved)
• Fixed the parsing of Virtual Judge sample cases on Chinese problems
• Fixed the parsing of Virtual Judge titles containing unwanted whitespace

2.52.1

• Fixed the parsing of TLX problems (thanks @adrieljss)
• Fixed the parsing of CodeChef problems

2.52.0

• Added support for Lanqiao (thanks @touhidurrr for the problem parser)
• Added support for Eolymp Basecamp (thanks @touhidurrr for the problem parser)
• Added support for the vjudge.net.cn Virtual Judge mirror (thanks @touhidurrr)
• Fixed the parsing of PTA problems (thanks @touhidurrr)
• Fixed the parsing of TLX problems (thanks @touhidurrr)

2.51.1

• Fixed the parsing of AlgoZenith problems on its maang.in website (thanks @rohitzerofour)
• Fixed the parsing of Baekjoon Online Judge problems in active contests
• Fixed the parsing of certain Mendo problems