pmd/docs/pages/release_notes.md

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PMD Release Notes	pmd_release_notes.html	changelog, release notes

{{ site.pmd.date }} - {{ site.pmd.version }}

The PMD team is pleased to announce PMD {{ site.pmd.version }}.

This is a {{ site.pmd.release_type }} release.

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New and noteworthy

New Rules

• The new Java rule {% rule "java/bestpractices/UnusedAssignment" %} (java-bestpractices) finds assignments to variables, that are never used and are useless. The new rule is supposed to entirely replace {% rule "java/errorprone/DataflowAnomalyAnalysis" %}.

Fixed Issues

• apex
  • #2610: [apex] Support top-level enums in rules
• apex-bestpractices
  • #2626: [apex] UnusedLocalVariable - false positive on case insensitivity allowed in Apex
• core
  • #710: [core] Review used dependencies
  • #2594: [core] Update exec-maven-plugin and align it in all project
• java-design
  • #2174: [java] LawOfDemeter: False positive with 'this' pointer
  • #2189: [java] LawOfDemeter: False positive when casting to derived class
• java-performance
  • #1736: [java] UseStringBufferForStringAppends: False positive if only one concatenation
  • #2207: [java] AvoidInstantiatingObjectsInLoops: False positive - should not flag objects when assigned to lists/arrays

API Changes

Deprecated API

For removal

• {% jdoc core::lang.rule.RuleChainVisitor %} and all implementations in language modules
• {% jdoc core::lang.rule.AbstractRuleChainVisitor %}
• {% jdoc core::lang.Language#getRuleChainVisitorClass() %}
• {% jdoc core::lang.BaseLanguageModule#(java.lang.String,java.lang.String,java.lang.String,java.lang.Class,java.lang.String...) %}

External Contributions

• #2558: [java] Fix issue #1736 and issue #2207 - Young Chan
• #2560: [java] Fix false positives of LawOfDemeter: this and cast expressions - xioayuge
• #2590: Update libraries snyk is referring to as unsafe - Artem Krosheninnikov
• #2597: [dependencies] Fix issue #2594, update exec-maven-plugin everywhere - Artem Krosheninnikov

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