If you haven't upgraded your PostgreSQL deployment to the latest security-fixed version, we'll be upgrading it for you in the coming weeks. Read on for how you can still take control of the upgrade.
A month ago, we made new versions of PostgreSQL available on Compose so that users could upgrade on their own schedule to the latest releases which resolved two security issues.
Now a month has passed, we are moving onto the next phase of the process where we upgrade our customers databases for them. It's important, for the cloud's version of herd immunity, to have the latest versions of databases in place which is why we are taking this step. The timer begins today.
You will still be able to do an upgrade yourself on your own timetable over this month. If you've been looking to move up a PostgreSQL major version, now could be a great time to do it. If not, you can do a simple in-place upgrade. It is important to remember that the in-place, minor version upgrades of the database have no application-level breaking changes.
In 30 days from now, October 15th, we'll be implementing forced upgrades of existing PostgreSQL's up to the highest minor version for their major version. That means 9.4.x PostgreSQL will be upgraded to 9.4.19, 9.5.x to 9.5.14 and 9.6.x to 9.6.10.
We expect the upgrade work to be completed by mid-November.
There are added benefits to this upgrade for users too. We'll be ensuring that all upgraded PostgreSQL deployments will be using Patroni on Compose as a core component of their high availability management. If you have an older deployment, you'll also find that you benefit from better more verbose logging.
Again, it's not too late to take control of your own upgrade. Simply go to the Settings tab and select an in-place version upgrade for your database.
We are also be moving the new PostgreSQL versions – 9.4.19, 9.5.14 and 9.6.10 – to preferred status, as previously announced, to ensure that all new deployments will be using the latest version.
These changes will bring a better PostgreSQL to all Compose users.