• Table of contents
• Upgrading Custom Sniffs
• Extending Other Sniffs
• Extending the Included Abstract Sniffs
• AbstractVariableSniff
• AbstractPatternSniff
• AbstractScopeSniff
• New Class Names
• PHP_CodeSniffer_File
• PHP_CodeSniffer_Tokens
• PHP_CodeSniffer
• Upgrading Unit Tests
• Setting CLI Values
• Upgrading Custom Reports
• Supporting Concurrency