Issue #20262 has been updated by mame (Yusuke Endoh). Status changed from Open to Closed Maybe the same issue as https://bugs.ruby-lang.org/issues/20083. Fixed at 3.3.1. ``` $ RBENV_VERSION=3.2.2 ruby -e 'str = "------------abcdefg------------#3895912" re = /\b\w*[a-zA-Z-]*\d+[\w-]{3,}\w+\b/ p re.match?(str)' true $ RBENV_VERSION=3.3.0 ruby -e 'str = "------------abcdefg------------#3895912" re = /\b\w*[a-zA-Z-]*\d+[\w-]{3,}\w+\b/ p re.match?(str)' false $ RBENV_VERSION=3.3.1 ruby -e 'str = "------------abcdefg------------#3895912" re = /\b\w*[a-zA-Z-]*\d+[\w-]{3,}\w+\b/ p re.match?(str)' true ``` ---------------------------------------- Bug #20262: Regex mismatch between Ruby 3.2.2 and 3.3.0 https://bugs.ruby-lang.org/issues/20262#change-108083 * Author: weilandia (Nick Weiland) * Status: Closed * ruby -v: 3.3.0 * Backport: 3.0: UNKNOWN, 3.1: UNKNOWN, 3.2: UNKNOWN, 3.3: UNKNOWN ---------------------------------------- This might be a duplicate of https://bugs.ruby-lang.org/issues/20098, but I cannot make it match with the backref so maybe not. Below example matches in 3.2.2 but not in 3.3.0 ``` ruby str = "------------abcdefg------------#3895912" re = /()\1\b\w*[a-zA-Z-]*\d+[\w-]{3,}\w+\b/ re.match?(str) ``` -- https://bugs.ruby-lang.org/