Issue #19390 has been reported by byroot (Jean Boussier). ---------------------------------------- Bug #19390: Time.new: Assertion Failed: bignum.c:4187:rb_int_parse_cstr:len != 0 https://bugs.ruby-lang.org/issues/19390 * Author: byroot (Jean Boussier) * Status: Open * Priority: Normal * ruby -v: ruby 3.2.0 (2023-01-25 revision a22eca8231), ruby 3.3.0dev (2023-01-30T08:29:31Z master 1c7bf378a1) * Backport: 2.7: DONTNEED, 3.0: DONTNEED, 3.1: DONTNEED, 3.2: REQUIRED ---------------------------------------- Can be reproduced with the following snippet: ```ruby Time.new("2020-10-28T16:48:07.000Z") ``` I suspect but haven't confirmed that this bug was introduced in the fix for `[Bug #19296]` cc @nobu I have a patch for it, I'll open a PR in a couple minutes. -- https://bugs.ruby-lang.org/