Sourced from ch.qos.logback:logback-core's releases.

Logback 1.5.19

2025-09-30 Release of logback version 1.5.19

• Disallow "new" operator in the condition attribute of <if> elements. This fixes an ACE vulnerability recorded as CVE-2025-11226.

• At initialization time, slightly better reporting about watched configuration files.

• Softer message regarding usage of ConsoleAppender and its potential impact on performance.

• In ViewStatusMessagesServlet, restrict processing of "Clear" button to POST method. This change was proposed by Ralf Wiebicke who also provided the relevant PR.

• A bit-wise identical binary of this version can be reproduced by building from source code at commit e572d4f87f06674788eb3ca7148e8d1dffc615fa associated with the tag v_1.5.19. Release built using Java "21" 2023-10-17 LTS build 21.0.1.+12-LTS-29 under Linux Debian 11.6.

Logback 1.5.18

2025-03-18 Release of logback version 1.5.18

• Added support for XZ compression for archived log files. Note that XZ compression requires Tukaani project's XZ library for Java. In case XZ compression is requested but the XZ library is missing, then logback will substitute GZ compression as a fallback. This feature was requested in issues/755.

• Removed references to java.security.AccessController class. This class has been deprecated for some time and is slated for removal in future JDK versions.

• A bit-wise identical binary of this version can be reproduced by building from source code at commit b2a02f065379a9b1ba5ff837fc08913b744774bc associated with the tag v_1.5.18. Release built using Java "21" 2023-10-17 LTS build 21.0.1.+12-LTS-29 under Linux Debian 11.6.

Logback 1.5.17

2025-02-25 Release of logback version 1.5.17

• Fixed Jansi 2.4.0 color-coded output not working on Windows CMD.exe console when the default terminal application is set to "Windows Console Host". This problem was reported in issues/753 by Michael Lyubkin.

• Fixed race condition occurring in case MDC class is initialized while org.slf4j.LoggerFactory is initializing logback-classic's LoggerContext. When this race conditions occurs, the MDCAdapter instance used by MDC does not match the instance used by logback-classic. This issue was reported in SLF4J issues/450. While logback-classic version 1.5.17 remains compatible with SLF4J versions in the 2.0.x series, fixing this particular MDC issue requires SLF4J version 2.0.17.

• A bit-wise identical binary of this version can be reproduced by building from source code at commit 10358724ed723b3745c010aa40cb02a2dfed4593 associated with the tag v_1.5.17. Release built using Java "21" 2023-10-17 LTS build 21.0.1.+12-LTS-29 under Linux Debian 11.6.

Logback 1.5.16

2025-01-05 Release of logback version 1.5.16

• In order to ease the migration of configuration files depending on JaninoEventEvaluator, logback-classic will emit a warning about the removal of JaninoEventEvaluator in version 1.5.13 and suggest an online migration tool.

• A bit-wise identical binary of this version can be reproduced by building from source code at commit 74c9ebd0e784d9e9ffc6c627cf5016d0157956b2 associated with the tag v_1.5.16. Release built using Java "21" 2023-10-17 LTS build 21.0.1.+12-LTS-29 under Linux Debian 11.6.

• e572d4f skip deployment of blackbox and example modules, published as version 1.5.9
• 4adae8b add plugin for Maven Central deployment
• ee70cf4 prepare release 1.5.19
• 20802cf mindor javadoc changes
• 8116069 comment out code in COWArrayListConcurrencyTest to make IDE happy
• 7f65340 minor changes
• 8d2262d soften warning on using ConsoleAppender
• c76fed3 ViewStatusMessagesServlet requires method POST for button 'Clear' (#971)
• 61f6a25 disallow new in if condition attribute in config files
• a07cfd5 logback-core: fix spelling errors (#956)
• Additional commits viewable in compare view

Sourced from ch.qos.logback:logback-classic's releases.

Logback 1.5.19

2025-09-30 Release of logback version 1.5.19

• Disallow "new" operator in the condition attribute of <if> elements. This fixes an ACE vulnerability recorded as CVE-2025-11226.

• At initialization time, slightly better reporting about watched configuration files.

• Softer message regarding usage of ConsoleAppender and its potential impact on performance.

• In ViewStatusMessagesServlet, restrict processing of "Clear" button to POST method. This change was proposed by Ralf Wiebicke who also provided the relevant PR.

• A bit-wise identical binary of this version can be reproduced by building from source code at commit e572d4f87f06674788eb3ca7148e8d1dffc615fa associated with the tag v_1.5.19. Release built using Java "21" 2023-10-17 LTS build 21.0.1.+12-LTS-29 under Linux Debian 11.6.

Logback 1.5.18

2025-03-18 Release of logback version 1.5.18

• Added support for XZ compression for archived log files. Note that XZ compression requires Tukaani project's XZ library for Java. In case XZ compression is requested but the XZ library is missing, then logback will substitute GZ compression as a fallback. This feature was requested in issues/755.

• Removed references to java.security.AccessController class. This class has been deprecated for some time and is slated for removal in future JDK versions.

• A bit-wise identical binary of this version can be reproduced by building from source code at commit b2a02f065379a9b1ba5ff837fc08913b744774bc associated with the tag v_1.5.18. Release built using Java "21" 2023-10-17 LTS build 21.0.1.+12-LTS-29 under Linux Debian 11.6.

Logback 1.5.17

2025-02-25 Release of logback version 1.5.17

• Fixed Jansi 2.4.0 color-coded output not working on Windows CMD.exe console when the default terminal application is set to "Windows Console Host". This problem was reported in issues/753 by Michael Lyubkin.

• Fixed race condition occurring in case MDC class is initialized while org.slf4j.LoggerFactory is initializing logback-classic's LoggerContext. When this race conditions occurs, the MDCAdapter instance used by MDC does not match the instance used by logback-classic. This issue was reported in SLF4J issues/450. While logback-classic version 1.5.17 remains compatible with SLF4J versions in the 2.0.x series, fixing this particular MDC issue requires SLF4J version 2.0.17.

• A bit-wise identical binary of this version can be reproduced by building from source code at commit 10358724ed723b3745c010aa40cb02a2dfed4593 associated with the tag v_1.5.17. Release built using Java "21" 2023-10-17 LTS build 21.0.1.+12-LTS-29 under Linux Debian 11.6.

Logback 1.5.16

2025-01-05 Release of logback version 1.5.16

• In order to ease the migration of configuration files depending on JaninoEventEvaluator, logback-classic will emit a warning about the removal of JaninoEventEvaluator in version 1.5.13 and suggest an online migration tool.

• A bit-wise identical binary of this version can be reproduced by building from source code at commit 74c9ebd0e784d9e9ffc6c627cf5016d0157956b2 associated with the tag v_1.5.16. Release built using Java "21" 2023-10-17 LTS build 21.0.1.+12-LTS-29 under Linux Debian 11.6.

• e572d4f skip deployment of blackbox and example modules, published as version 1.5.9
• 4adae8b add plugin for Maven Central deployment
• ee70cf4 prepare release 1.5.19
• 20802cf mindor javadoc changes
• 8116069 comment out code in COWArrayListConcurrencyTest to make IDE happy
• 7f65340 minor changes
• 8d2262d soften warning on using ConsoleAppender
• c76fed3 ViewStatusMessagesServlet requires method POST for button 'Clear' (#971)
• 61f6a25 disallow new in if condition attribute in config files
• a07cfd5 logback-core: fix spelling errors (#956)
• Additional commits viewable in compare view

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