In Logging.swift, line 57, you wrote:

private let maxCategoryNameLength = LogCategory.all.map { Int(String(describing: $0).characters.count) }.max() ?? 0

This causes a warning in Xcode because characters is a deprecated property in String now.

Since Strings are collections now, you can write this:

private let maxCategoryNameLength = LogCategory.all.map { Int(String(describing: $0).count) }.max() ?? 0