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.

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.

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.