Based on https://github.com/zendframework/zend-servicemanager/releases/tag/release-3.1.1 (commit dc85584023e9aebd6e7772804ce1df21fb5ccc3a in this repo)

Added
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- Nothing.

Deprecated
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- Nothing.

Removed
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- Nothing.

Fixed
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- [zendframework/zend-servicemanager#136](https://github.com/zendframework/zend-servicemanager/pull/136) removes
  several imports to classes in subnamespaces within the `ServiceManager`
  classfile, removing potential name resolution conflicts that occurred in edge
  cases when testing.