[dragonwriter]

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.)

[paulryanrogers]

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.

[dragonwriter]

> 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.

https://docs.aws.amazon.com/AmazonRDS/latest/AuroraUserGuide...

[paulryanrogers]

Wonderful! Not sure how I missed it the first time. Thanks for correcting me.

[renewiltord]

I use it in Postgres 12 mode.