Lección 2

UUID Versions en español

Guía en español para uuid uuid versions: The difference between random, time-based, and name-based UUID versions.

Este contenido todavía no está disponible en español. Se muestra la versión en English mientras completamos la localización.

The version digit tells you how a UUID was produced. It is the first character of the third group.

Common versions include:

  • v1: time and node based; can reveal timing and machine-related information
  • v3 / v5: deterministic name-based UUIDs using a namespace and name
  • v4: random UUIDs; the most common general-purpose choice
  • v6 / v7 / v8: newer layouts from RFC 9562, often used for sortable or custom schemes

For everyday development, UUID v4 is usually the simplest safe default: no central coordination, no embedded timestamp, and broad library support.

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