We would like to know if Epic is still maintaining the glTF exporter extension as we’re planning to make our own version of it, but we’d like to know whether we should copy the code into a separate extension of just use engine changes in the main extension.
I reached out to the team that owns the plugin and got the following information. The GLTF exporter is currently in maintenance mode and there is no immediate plan to increase its feature set. We still fix bugs and make sure it stays compatible with newer engine releases. The team would be interested into ingesting Pull Requests that improve the plugin in terms of performance or adds extra feature as long as it doesn’t break.
This leaves you with 2 options:
Editor the plugin in place so you inherit bug fixes or API fixes when a new version is released.
Contributing Pull Requests is entirely option but has the benefits that we will own the maintenance of the code we accepted.
Copy the plugin under you project. You fully own the “new” plugin and can change it in ways we could not accept for the main plugin. You can still benefit from our maintenance work but merging could become more challenging if the code bases diverge too much.