(This isn't urgent, existing links will continue to work)
An increasing number of browsers are stripping utm_ parameters from URLs, which makes it impossible for us to tell where a donation comes from. We have updated our donation pipeline to accept parameters starting with wmf_ instead to reduce this data loss.
This task is about updating the web sidebar donation links. This might be complicated since there are so many of them. Also we might want to re-think the tracking for these more broadly