Several deployment patterns significantly reduce downtime during releases by minimizing risk and enabling swift rollbacks. Blue/Green deployments involve running two identical production environments, with one active (Blue) and the other staging the new version (Green), allowing for an instant switch once verified. Similarly, Canary releases gradually expose the new version to a small subset of users, monitoring its performance and stability before a full rollout. Rolling updates replace instances of an application one by one with the new version, maintaining application availability throughout the process. Furthermore, Feature Flags (or Toggles) enable specific functionalities to be turned on or off without redeploying code, offering fine-grained control and mitigating potential issues. These strategies collectively ensure high availability and provide mechanisms for quick recovery, making releases smoother and less disruptive. More details: https://github.com/77gvv777-cell