Hola necesito descargar Xcode que sea compatible con mojave y catalina

Buenas

Xcode 11.3.1 Download

Xcode 11.3.1 supports developing apps for iOS 13.3, iPadOS 13.3, tvOS 13.3, watchOS 6.1, and macOS Catalina 10.15.2. Xcode 11.3.1 supports on-device debugging for iOS 8 and later, tvOS 9 and later, and watchOS 2 and later. Xcode 11.3.1 requires a Mac running macOS Mojave 10.14.4 or later.

Xcode 12.4 Download

Xcode 12.4 includes SDKs for iOS 14.4, iPadOS 14.4, tvOS 14.3, watchOS 7.2, and macOS Big Sur 11.1. The Xcode 12.4 release supports on-device debugging for iOS 9 and later, tvOS 9 and later, and watchOS 2 and later. Xcode 12.4 requires a Mac running macOS 10.15.4 or later.

Saludos

De nada, un placer ayudarle en la resolución de su caso.-

Saludos