<p>I was reading this blog post <a href="https://iohk.io/en/blog/posts/2020/03/23/from-classic-to-hydra-the-implementations-of-ouroboros-explained/" rel="nofollow noreferrer">From Classic to Hydra</a> and I was wondering which version of Ouroboros is currently implemented in Cardano: Classic, BFT or Praos?</p>

<ouroboros>
Ouroboros – Which version is currently implemented?
# Ouroboros – Which version is currently implemented?

(Asked by: username_0 on 2021-09-09)

I was reading this blog post [From Classic to Hydra](https://iohk.io/en/blog/posts/2020/03/23/from-classic-to-hydra-the-implementations-of-ouroboros-explained/) and I was wondering which version of Ouroboros is currently implemented in Cardano: Classic, BFT or Praos?

**Tags:** ouroboros

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## 0 answers

