Version 34 of these guidelines were voting in as the official guideline for the Apache Flex Project on the 14th November 2013.
Since then some minor formatting and spelling issues have been fixed but there been no rule changes.
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Unable to render content due to system error: java.lang.ClassCastException: class com.adaptavist.confluence.contentformatting.LozengeMacro cannot be cast to class com.atlassian.renderer.v2.macro.Macro (com.adaptavist.confluence.contentformatting.LozengeMacro is in unnamed module of loader org.apache.felix.framework.BundleWiringImpl$BundleClassLoader @4f2ed921; com.atlassian.renderer.v2.macro.Macro is in unnamed module of loader org.apache.catalina.loader.ParallelWebappClassLoader @45c8d09f)
Unable to render content due to system error: java.lang.ClassCastException: class com.adaptavist.confluence.contentformatting.LozengeMacro cannot be cast to class com.atlassian.renderer.v2.macro.Macro (com.adaptavist.confluence.contentformatting.LozengeMacro is in unnamed module of loader org.apache.felix.framework.BundleWiringImpl$BundleClassLoader @4f2ed921; com.atlassian.renderer.v2.macro.Macro is in unnamed module of loader org.apache.catalina.loader.ParallelWebappClassLoader @45c8d09f)
Unable to render content due to system error: java.lang.ClassCastException: class com.adaptavist.confluence.contentformatting.LozengeMacro cannot be cast to class com.atlassian.renderer.v2.macro.Macro (com.adaptavist.confluence.contentformatting.LozengeMacro is in unnamed module of loader org.apache.felix.framework.BundleWiringImpl$BundleClassLoader @4f2ed921; com.atlassian.renderer.v2.macro.Macro is in unnamed module of loader org.apache.catalina.loader.ParallelWebappClassLoader @45c8d09f)