Hello Operations
We apologize for the inconvenience.
Bastion Developer is currently unavailable. We're working to restore service. As a workaround, you can use the Basic SKU or the Standard SKU to connect to your VMs. We'll update this article when Bastion Developer is available again.

Kindly check the document:
https://learn.microsoft.com/en-us/azure/bastion/quickstart-developer
Workaround: We recommend using the Basic or Standard SKU of Azure Bastion to ensure continued secure access to your resources. (About Azure Bastion | Microsoft Learn)
Current Status: We are actively working to resolve the issue and restore full functionality. We are working on developing a fix and continuing to monitor this situation closely. We understand the inconvenience this may have caused and sincerely apologize for any disruption to your operations. We appreciate your understanding and patience as we work to resolve this issue.
For reference check the Microsoft Q&A thread link:
https://learn.microsoft.com/en-us/answers/questions/2263387/azure-bastion-developer-sku-is-missing-in-the-supp
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