Eight versions of UUID and when to use them
The article covers eight versions of UUIDs, detailing their characteristics and best use cases. Recommendations include v4 for random IDs, v7 for sortable IDs, and v5 or v8 for custom data. Some versions have been replaced. The author shares insights and hints at a secretive project.
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The article discusses the eight versions of UUIDs (Universally Unique Identifiers) and when to use them. The versions range from v1 to v8, each with specific characteristics and recommended use cases. UUIDs are generated from various sources like timestamps, random data, and hashes. The author suggests using v4 for random IDs, v7 for sortable IDs, and v5 or v8 for custom data inclusion. Some versions have been replaced by newer ones, like v3 being superseded by v5. The post also mentions that v2 is reserved for unspecified security purposes, and v6 is similar to v1 but with a different sorting order. The author shares personal insights about learning this information over a month ago and encourages sharing the post if found useful. Additionally, the post hints at a secretive project involving UUIDs and suggests reaching out via email for feedback or questions.
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