Common

• Fix -- Fixed some dangling references to random_in_unit_sphere() (#1637)
• Fix -- Clarify uniform_real_distribution usage for random_double() (#1680)
• Update -- CMake minimum required version max now at 4.0.0.

In One Weekend

• Fix -- Fix equation for refracted rays of non-unit length (#1644)
• Fix -- Typo "trigonometric qualities" -> "trigonometric identities"

The Rest of Your Life

• Fix -- Typo in equation in book 3, section 12.3 (#1686)