--- title: "New UUID Formats" url: https://daily.dev/posts/new-uuid-formats-txlijjag9 source_url: https://www.ietf.org/id/draft-peabody-dispatch-new-uuid-format-03.html type: article source: "Hacker News" published: 2022-06-13T00:11:26.037Z updated: 2026-03-15T04:01:40.920Z tags: ["apple", "general-programming"] reading_time: 2 upvotes: 17 comments: 1 language: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # New UUID Formats **[Hacker News](https://daily.dev/sources/hn)** · 2 min read · 17 upvotes · 1 comments ## Summary Modern applications have a need to create and utilize UUIDs as the primary identifier for a variety of different items in complex computational systems. UUID versions 1-5 lack certain other desirable characteristics. Privacy and network security issues arise from using a MAC address in the node field of Version 1 Uuids. Exposed MAC addresses can be used as an attack surface to locate machines. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Community discussion Top comments from developers on daily.dev. **@qorbani** · 1 upvotes > UUID Generation is extremely underrated. Choosing the right UUiD Format can goes long way when you want to build scalable identity solution across many different data sources or entities you manage. ## Similar posts on daily.dev - [Don’t just attend KubeCon \+ CloudNativeCon, Merge Forward your experience\!](https://daily.dev/posts/don-t-just-attend-kubecon-cloudnativecon-merge-forward-your-experience--l0rpp73x8) · CNCF · 0 upvotes · 0 comments - [Announcing H2 2026 KCDs](https://daily.dev/posts/announcing-h2-2026-kcds-m96goajm1) · CNCF · 1 upvotes · 0 comments - [Two months of Open Community Groups](https://daily.dev/posts/two-months-of-open-community-groups-asf52zhbs) · CNCF · 0 upvotes · 0 comments --- Tags: [#apple](https://daily.dev/tags/apple), [#general-programming](https://daily.dev/tags/general-programming) [View this post on daily.dev](https://daily.dev/posts/new-uuid-formats-txlijjag9)