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OpenJul 18, 2026
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ReusableMessages not getting released when using entry/exit logging
bugIncorrect, unexpected, or unintended behavior of existing codeIncorrect, unexpected, or unintended behavior of existing codeStatus: Open.#1273 In apache/logging-log4j2;Log4j's implementation of SLF4J
Loggershould not use no-op buildersbugIncorrect, unexpected, or unintended behavior of existing codeIncorrect, unexpected, or unintended behavior of existing codeslf4jAffects SLF4J integrationAffects SLF4J integrationStatus: Open.#1287 In apache/logging-log4j2;AsyncLogger does not compute location for some methods
asyncAffects asynchronous loggers or appendersAffects asynchronous loggers or appendersbugIncorrect, unexpected, or unintended behavior of existing codeIncorrect, unexpected, or unintended behavior of existing codeStatus: Open.#1458 In apache/logging-log4j2;SizeBasedTriggeringPolicy counter not resetting after TimeBasedTriggeringPolicy rollover
appenders:RollingAffects log file rolling functionalityAffects log file rolling functionalityStatus: Open.#2297 In apache/logging-log4j2;LastModifiedTime of compressed file is not preserved
appenders:RollingAffects log file rolling functionalityAffects log file rolling functionalityenhancementAdditions or updates to featuresAdditions or updates to featuresStatus: Open.#3965 In apache/logging-log4j2;No error emitted when using a YAML configuration without additional dependency
bugIncorrect, unexpected, or unintended behavior of existing codeIncorrect, unexpected, or unintended behavior of existing codeconfigurationAffects the configuration system in a general wayAffects the configuration system in a general wayStatus: Open.#1501 In apache/logging-log4j2;ClassLoaderContextSelectorshould create a separate context per classloaderbugIncorrect, unexpected, or unintended behavior of existing codeIncorrect, unexpected, or unintended behavior of existing codeStatus: Open.#2314 In apache/logging-log4j2;- Status: Open.#2850 In apache/logging-log4j2;
Appender#stopis not idempotentappendersAffects one or more Appender pluginsAffects one or more Appender pluginsbugIncorrect, unexpected, or unintended behavior of existing codeIncorrect, unexpected, or unintended behavior of existing codeStatus: Open.#1653 In apache/logging-log4j2;Fix handling of
onMatchandonMismatchattributes in the properties configuration formatbugIncorrect, unexpected, or unintended behavior of existing codeIncorrect, unexpected, or unintended behavior of existing codeconfigurationAffects the configuration system in a general wayAffects the configuration system in a general waygood first issueIssues that are good for contributors looking to get startedIssues that are good for contributors looking to get startedStatus: Open.#2791 In apache/logging-log4j2;Add Support for Custom Headers in SMTP Appender
appendersAffects one or more Appender pluginsAffects one or more Appender pluginsenhancementAdditions or updates to featuresAdditions or updates to featuresStatus: Open.Gradle: unexpected compiler warning with Log4j
2.25.3bugIncorrect, unexpected, or unintended behavior of existing codeIncorrect, unexpected, or unintended behavior of existing codebuildAffects the build system or other automationAffects the build system or other automationStatus: Open.Uniformise
%expattern andexceptionJTL resolverbugIncorrect, unexpected, or unintended behavior of existing codeIncorrect, unexpected, or unintended behavior of existing codelayoutsAffects one or more Layout pluginsAffects one or more Layout pluginsStatus: Open.#3623 In apache/logging-log4j2;Consider replacing
FileOutputStreamwithFiles.newOutputStreamappendersAffects one or more Appender pluginsAffects one or more Appender pluginsenhancementAdditions or updates to featuresAdditions or updates to featuresruntimeSpecific to the runtime environmentSpecific to the runtime environmentStatus: Open.#2117 In apache/logging-log4j2;SslConfig is null when trying to capture logs using Syslog with TLS
bugIncorrect, unexpected, or unintended behavior of existing codeIncorrect, unexpected, or unintended behavior of existing codeconfigurationAffects the configuration system in a general wayAffects the configuration system in a general waylayoutsAffects one or more Layout pluginsAffects one or more Layout pluginsStatus: Open.#4026 In apache/logging-log4j2;Missing ANSI Italic Style and Rendering Error in Underline Style
bugIncorrect, unexpected, or unintended behavior of existing codeIncorrect, unexpected, or unintended behavior of existing codelayoutsAffects one or more Layout pluginsAffects one or more Layout pluginsStatus: Open.#4105 In apache/logging-log4j2;Document
StructuredDataMessageargument constraintsdocumentationPull requests or issues that affect documentationPull requests or issues that affect documentationStatus: Open.#4051 In apache/logging-log4j2;Missing servlet context in web lookup when using composite configuration
bugIncorrect, unexpected, or unintended behavior of existing codeIncorrect, unexpected, or unintended behavior of existing codelookupsIssue related to a lookupIssue related to a lookupStatus: Open.#2351 In apache/logging-log4j2;Make XInclude support in XML configuration opt-in for improved security hardening
configurationAffects the configuration system in a general wayAffects the configuration system in a general wayenhancementAdditions or updates to featuresAdditions or updates to featureswaiting-for-interestProposed changes that need more community interest firstProposed changes that need more community interest firstStatus: Open.#4064 In apache/logging-log4j2;Add
log4j-api-kotlinto the bill of materials (log4j-bom)dependenciesRelated to third party dependency updates or migrationsRelated to third party dependency updates or migrationsenhancementAdditions or updates to featuresAdditions or updates to featuresStatus: Open.#4145 In apache/logging-log4j2;Properties coniguration format does not support per-logger properties
bugIncorrect, unexpected, or unintended behavior of existing codeIncorrect, unexpected, or unintended behavior of existing codeconfigurationAffects the configuration system in a general wayAffects the configuration system in a general waydocumentationPull requests or issues that affect documentationPull requests or issues that affect documentationStatus: Open.#4024 In apache/logging-log4j2;