Magento Coding Standard Versioning Strategy

design-documents/testing/static/coding-standard-versioning.md

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+# Magento Coding Standard Versioning
+The purpose of this document is the defining versioning strategy for [Magento Coding Standard](https://github.com/magento/magento-coding-standard).
+
+## Release Line
+One release line will be supported based on incremental approach despite introduced changes (new rules, bug fixes, etc).
+General overview scheme:
+
+```
+3 - 4 - 5 - ... - 42 - ... - N
+
+```
+
+Single number sequence-based version identifier will be incremented every release.
+
+Once new release happens it automatically means that all users (core developers, community contributors, system integrators and extension developers) need to follow the latest version.
+
+**Only the latest version** will be supported.
+
+## Dependency
+Since we want all users (core developers, community contributors, system integrators and extension developers) to follow the latest version of Coding Standard, the dependency should be `"*"`.
+```
+    "require-dev": {
+        ...
+        "magento/magento-coding-standard": "*",
+        ...
+    }
+```
+
+## Side Effects
+- No `patch` or `minor` dependency will be possible, so any change may lead to build (code check) failure.
+- If released Magento package will contain `"*"` dependency any update may lead to build (code check) failure.
+
+## Marketplace Notifications
+- Developers on Marketplace will be notified prior EQP will update the version for PHPCodeSniffer check.
+- Developers on Marketplace will see in the report what version was used during the check.
+- Extension will be rejected in case it does not follow the latest Coding Standard version.