NO, RDS includes non-Aurora versions of many DBs, plus MySQL and Postgres-compatible Aurora servers, plus MySQL and Postgres compatible Aurora Serverless.
Thanks for clarifying. I'd associated RDS with the non-Aurora offerings of Mysql and Postgres. Judging by upstream version compatibility it appears Aurora is more heavily forked than their non-Aurora siblings.
I don't think Aurora MySQL/Postgres are just forks, I think they are a completely custom datastore behind a MySQL or Postgres-compatible interface (which probably uses a lot of non-engine code from the open-source base database.)
Regardless it looks like anyone choosing Aurora should not hold their breath for Mysql 8 or Postgres 10+ compatibility. Seems like only one major version bump has happened since they launched the first one (Mysql 5.6-to-5.7).
Which is fine. It can just be a little confusing as they drift and the caveats grow.
> Regardless it looks like anyone choosing Aurora should not hold their breath for Mysql 8 or Postgres 10+ compatibility.
Current Aurora Postgres is compatible with pg 12.4; pg 10+ support has been around so long that several versions that support 10+ have already been EOL’d by Amazon. Even Serverless, which lags behind, is on 10.x.
