Xcode 2.4.1 Release was released on 30 Oct 2006 and requires macOS 10.4+.
It can be downloaded from https://download.developer.apple.com/Developer_Tools/xcode_2.4.1/xcode_2.4.1_8m1910_6936315.dmg.
Release notes are located at https://download.developer.apple.com/Developer_Tools/xcode_2.4.1/xcode_2.4.1.readme.pdf.