mirror of https://github.com/docker/docs.git
commit
b06c4585c3
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@ -4,7 +4,7 @@ description: Learn how to upgrade your Docker Trusted Registry
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keywords: dtr, upgrade, install
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---
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{% assign previous_version="2.3" %}
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{% assign previous_version="2.4" %}
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DTR uses [semantic versioning](http://semver.org/) and we aim to achieve specific
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guarantees while upgrading between versions. We never support downgrading. We
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@ -105,13 +105,13 @@ By contrast, a **virtual machine** (VM) runs a full-blown "guest" operating
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system with _virtual_ access to host resources through a hypervisor. In general,
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VMs provide an environment with more resources than most applications need.
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{:width="300px"} | {:width="300px"}
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{:width="300px"} | {:width="300px"}
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## Prepare your Docker environment
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Install a [maintained version](https://docs.docker.com/engine/installation/#updates-and-patches){: target="_blank" class="_"}
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Install a [maintained version](/engine/installation/#updates-and-patches){: target="_blank" class="_"}
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of Docker Community Edition (CE) or Enterprise Edition (EE) on a
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[supported platform](https://docs.docker.com/engine/installation/#supported-platforms){: target="_blank" class="_"}.
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[supported platform](/ee/supported-platforms/){: target="_blank" class="_"}.
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> For full Kubernetes Integration
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>
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@ -150,7 +150,7 @@ is available in
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...
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```
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> To avoid permission errors (and the use of `sudo`), add your user to the `docker` group. [Read more](https://docs.docker.com/engine/installation/linux/linux-postinstall/){: target="_blank" class="_"}.
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> To avoid permission errors (and the use of `sudo`), add your user to the `docker` group. [Read more](/engine/installation/linux/linux-postinstall/){: target="_blank" class="_"}.
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### Test Docker installation
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@ -213,7 +213,7 @@ docker container ls -aq
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## Conclusion of part one
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Containerization makes [CI/CD](https://www.docker.com/use-cases/cicd){: target="_blank" class="_"} seamless. For example:
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Containerization makes [CI/CD](https://www.docker.com/solutions/cicd){: target="_blank" class="_"} seamless. For example:
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- applications have no system dependencies
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- updates can be pushed to any part of a distributed application
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