• Add check for cookie serialization with Marshal (#1316)
• Add reverse tabnabbing check (Linos Giannopoulos)
• Avoid warning about file access with ActiveStorage::Filename#sanitized (Tejas Bubane)
• Update loofah version for fixing CVE-2018-8048 (Markus Nölle)
• Warn people that Haml 5 is not fully supported (Jared Beck)
• Index calls in initializers
• Improve template output handling in conditional branches
• Avoid assigning nil line numbers to Sexps
• Add special warning code for custom checks
• Add call matching by regular expression
• Skip calls to dup (#1374)
• Restore Warning#relative_path
• Better handling of gems with no version declared