# Nexus 3 Compatibility and migration

## post by Surbanoski_Aleksandar on Oct 22, 2025

Hello all,

I am not able to find what is the last version of Nexus 3 which supports H2 and allows migration to PostgreSQL if in future we decide to move to PostgreSQL. Currently running 3.77.1-01

Also are there plans for Java 21 maybe ?

Tnx

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## post by mpiggott on Oct 22, 2025

H2 is still supported in the current Nexus, while I can’t predict the future today we don’t have plans to remove it.

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## post by Surbanoski_Aleksandar on Oct 22, 2025

What is the last version which allows migration to PostgreSQL from H2?

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## post by jzora on Oct 22, 2025

Surbanoski,

**Every present version of Nexus Repository that supports H2 _also_ allows migration to Postgres.** There are currently no plans to make any version of Nexus Repository the “last” version that supports migration from H2 to Postgres.

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## post by Surbanoski_Aleksandar on Oct 23, 2025

Thank you for the information.