Update README and migration notes to indicate changes in Java compatibility in 5.1 branch

Description

The following changed Java compatibility to 1.7:

  • In 5.1.4, java.util.Objects was introduced by an unused import statement into ActionQueue by HHH-9864. This seemed to only affect only some versions of Java 1.6.

  • In 5.1.11, java.util.regex.Pattern.UNICODE_CHARACTER_CLASS was introduced into ReflectHelper by HHH-11377.

The following changed Java compatibility to 1.8:

  • In 5.1.17, the upgrade to dom4j to 2.2.1 by HHH-12964.

The README and migration notes should reflect these changes.

Environment

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Status

Assignee

Gail Badner

Reporter

Gail Badner

Fix versions

Labels

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backPortable

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Suitable for new contributors

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Requires Release Note

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Pull Request

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backportDecision

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Priority

Major
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