Quick answer: Unity Addressables content update missing an asset you changed? Check Content Update workflow uses the saved state from the previous build - regenerate it before each update.

Modified a prefab. Ran Content Update. The generated patch bundle doesn't include the change.

Save state per build

Build Player Content saves an addressables_content_state.bin. Content Update reads this; without it, no diff is possible.

Verify diff inputs

Check for Content Update Restrictions reports modified groups. Empty report = state file is stale.

Mark groups Can Change Post Release

For dynamic groups, set the schema to allow content changes post-release. Otherwise updates require a new full build.

“Content Update is a diff. The diff needs a baseline; the baseline lives in the state file.”

Commit the addressables_content_state.bin per release tag. Without it, future content updates are guesswork.