Release 0.2609.3

This release makes deployment progress easier to follow and improves the experience while an app is starting.

Highlights:

• Refreshed pending-deployment and pipeline views with clearer progress and failure details
• Improved the app placeholder page and its transition to the running application

Fixes:

• Fixed unknown deployment status labels across app cards and deployment details
• Improved readiness and health-check failure reporting
• Improved HTTPS certificate handling for default Hostless app domains
• Improved scheduled-job queue handling