• Most serious projects don't deploy their code right to clients
• Most companies deploy versions of their code for testing, development and more
• A common approach is having 4+ environments
  • Local: Your personal machine. Most development happens here
  • Development: An environment mostly for developers to combine code
  • QA: A more stable environment for pre-release testing
  • Production: What the client sees. The "live" code
• If you making changes, how do you coordinate your environments?

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