Upgrade for Amazon Aurora Serverless v1 PostgreSQL-compatible edition 10.x end of support is January 31, 2023

Question

Hello,

We have received a notification for upgrading our 10.14 aurora postgres serverless instances but on attempting to upgrade I get a failed `InvalidParameterCombination` error with the cli.
Full error with cmd

```
aws rds modify-db-cluster \                                                                                                                                                        
    --db-cluster-identifier test-cluster \      
    --engine-version 11.7        \
    --allow-major-version-upgrade \
    --apply-immediately

An error occurred (InvalidParameterCombination) when calling the ModifyDBCluster operation: Cannot find upgrade target from 10.serverless_14 with requested version 11.7 for serverless engine mode.
```

Now I read in our notification that `Aurora PostgreSQL 11 for Amazon Aurora Serverless v1 will be available in Q1 2022. Detailed instructions on how to upgrade will be published when Aurora PostgreSQL 11 is available for Amazon Aurora Serverless v1 PostgreSQL-compatible edition. `

But I cannot find this documention for the `detailed instructions` .

`10.14` to `11.7` seems  to be a valid upgrade path [going on the docs](https://docs.aws.amazon.com/AmazonRDS/latest/AuroraUserGuide/USER_UpgradeDBInstance.PostgreSQL.html#USER_UpgradeDBInstance.PostgreSQL.MajorVersion). So I am not sure what is going on.

Would anybody be able to clarify?

Byron_G · Answer

Hi,
Take a look at this document; it has more details that will assist you: https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/USER_UpgradeDBInstance.PostgreSQL.html. Scroll down a couple of pages to find the table with the supported versions and upgrade paths. You will notice that version 11.7 is deprecated, so you won't be able to upgrade to that version. However, this document also details the valid versions you can use. Hope this helps!

Upgrade for Amazon Aurora Serverless v1 PostgreSQL-compatible edition 10.x end of support is January 31, 2023

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