Planning GoldenGate 23ai Migration Before Support Expires

At the moment, three versions of GoldenGate are still under Premier Support, but this will very soon change, with GoldenGate 19c and 21c coming out of Premier Support in April this year ! I give below the official Oracle support end dates, as per 2026.

Of course, you should always consult the official updated resource (last update in November 2025). In fact, Oracle already extended the support for GoldenGate 19c once, so it’s always good to stay updated on this issue.

I don’t think it should come as a surprise that anything older than GoldenGate 19c is out of support for quite some time now.

Another valuable lesson from this table is that you should never play too much with intermediate release, except if you really need them. If you upgraded to GoldenGate 21c and have Extended Support, your GoldenGate won’t be supported ! However, GoldenGate 19c Extended Support ends only in April 2027.

Now would be the perfect time to upgrade to the latest version of GoldenGate, 23ai (soon to be 26ai). With that in mind, the upgrade process is more or less complex, depending on your current situation. I tried to summarize all situations in the following diagram. More explanations are available below, and full upgrade examples will follow in future blog posts.

Upgrading any Microservices Architecture to GoldenGate 23ai

If you already opted for GoldenGate Microservices Architecture, and you should have since it was first released nearly ten years ago, then the upgrade process is straightforward, with only one step to upgrade to GoldenGate 23ai. Again, the procedure itself is out of scope for this blog.

Upgrading from GoldenGate Classic Architecture to GoldenGate 23ai

If you still have a Classic Architecture installation running, the upgrade process will be more complex, and depends on the version of GoldenGate you have.

Classic Architecture 19c/21c to 23ai

If your version of GoldenGate is not too old (19c/21c), then you can use the Oracle Migration Utility available with the patch 37274898 (now KB100447 in MOS). I will give real migration examples when I have time to write more on the subject.

Classic Architecture 18c or older to 23ai

If you still have a GoldenGate 18c or older with a Classic Architecture, then you will need a two steps process to upgrade to GoldenGate 23ai.

• First a standard upgrade to a more recent version of GoldenGate, either 19c or 21c, with Classic Architecture.
• Then, use the Oracle Migration Utility mentioned above, to migrate from Classic Architecture to GoldenGate 23ai with Microservices Architecture.

As always, keeping your GoldenGate installations up-to-date is the best way to ensure you stay supported, secured and avoid a painful migration process when it becomes too late.