Hi,
The deadline for upgrading Basic SKU Public IP that is being used with VPN Gateway is end of January 2026, so there is still time.
You are correct they haven't published migration path yet. I'm monitoring the timeline page as well as Azure Updates page.
Worst case you now have the option to delete existing/recreate new Basic SKU VPN Gateway with Standard SKU Public IP. Obviously this involves more downtime and public IP will change, so waiting for them to release migration would be better.
I tested this "worst case" scenario in one region already.
Please click Accept Answer and upvote if the above was helpful.
Thanks.
-TP