The Christmas release brings you one visible change which will make it easy for trunk users and those of the future OpenTTD 1.3.0-beta1 to get rid of the "missing sprites" warning:
- Feature: GUI sprites for delete buttons introduced in OpenTTD r24749
Note to package maintainers: as this sprite is only used in trunk (and in OpenTTD 1.3.0-beta1 and later), there is no need to update your package, if you ship OpenTTD 1.2 or earlier. You want this, if you want to ship OpenTTD 1.3.0-beta1.
NOTE: You'll also need NML 0.2.5.r2050:7c249349d2a9. As of writing no binary-compatible stable NML release exists for that. I hope we can supply that within the next days.