# What's new in the pattern database format V5

The V5 database format has the following differences compared to the V4 format:

  * The `<ruleset>` element can now store multiple reference URLs using the new `<rule_urls>` element. For details, see [Element: ruleset](../../../../docs/axosyslog-core/chapter-parsers/chapter-patterndb/reference-parsers-pattern-databases/reference-patterndb-schemes/patterndb-scheme-ruleset/index.md).

  * In an `<action>`, you can now initialize a new context. As a result, the `<message>` element is not required. For details, see [Element: create-context](../../../../docs/axosyslog-core/chapter-parsers/chapter-patterndb/reference-parsers-pattern-databases/reference-patterndb-schemes/patterndb-scheme-create-context/index.md).

  * The `inherit-properties` attribute is deprecated, use the `inherit-mode` attribute instead. For details, see [Element: action](../../../../docs/axosyslog-core/chapter-parsers/chapter-patterndb/reference-parsers-pattern-databases/reference-patterndb-schemes/patterndb-scheme-action/index.md).




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