• The production build no longer publishes packages → speed-up of 60-90 minutes + we no longer publish old code with new version
• The main build no longer waits for package publishing as it's not really required → speed-up of 60 minutes for main builds
• Secret verification no longer happens twice (in Build and in its own stage)
• Removed unused code such as unused YAML parameters or variables
• Removed unnecessary steps such as .NET restore when it's done as part of Arcade build anyway
• Simplified YAML in many places
• GitHub verification stage is now omitted properly
• YAML de-duplication of secret rotation, pool configuration and more
• E2E test time limit increased from 90 to 120 minutes as it sometimes times out

The new rollout pipeline looks like this:

Sample rollout build (that targets staging env):
https://dev.azure.com/dnceng/internal/_build/results?buildId=2207136&view=results

#2698