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

Logback 1.5.33

2026-05-27 Release of logback version 1.5.33

• PropertiesConfiguratorModelHandler now registers properties file URLs to the ConfigurationWatchList when scan is enabled (via local scan="true" attribute or top-level configuration scan), ensuring changes are detected and reconfiguration occurs. This problem was reported in issues/1034.

• When processing <conversionRule> elements and both class and converterClass attributes are specified, silently use the class attribute without issuing a warning. However, if the attribute values differ, a warning will be issued. This change was requested in issues/1031.

• HardenedModelInputStream will no longer accept to deserialize all classes located under the "java.lang" and "java.util" packages but a limited number of explicitly authorized classes in those packages. This potential deserialization whitelist bypass vulnerability was reported by York Shen and registered as CVE-2026-9828.

• SSL parameters for SSLSocketAppender now enable hostname verification by default. Moreover, the default protocol is now "TLSv1.2". This potential vulnerability was reported by York Shen.

• When printing the status message field, ViewStatusMessagesServletBase now escapes special characters such as "&" as character entities. This potential vulnerability was reported by York Shen.

• A bit-wise identical binary of this version can be reproduced by building from source code at commit 124e8b49b55ac34d08743a0646bd463410192647 associated with the tag v_1.5.33. Release built using Java "21" 2023-10-17 LTS build 21.0.1.+12-LTS-29 under Linux Debian 11.6.

Logback 1.5.32

2026-02-16 Release of logback version 1.5.32

• In DefaultProcessor, fixed incorrect check for dependencies contained within a parent model. Previous only the direct children were scanned. This fixes logback-access/issues/34.

• A bit-wise identical binary of this version can be reproduced by building from source code at commit e807335a67535b4eacce94e942c0bcb649665d93 associated with the tag v_1.5.32. Release built using Java "21" 2023-10-17 LTS build 21.0.1.+12-LTS-29 under Linux Debian 11.6.

Logback 1.5.31

2026-02-14 Release of logback version 1.5.31

• Fixed missing META-INF/services directory in logback-classic.jar. This issue rendered logback-classic version 1.5.30 unusable with SLF4J.

• A bit-wise identical binary of this version can be reproduced by building from source code at commit 168e42f9f9a18a3ffdf31eb2bfe80a71e33ecd8b associated with the tag v_1.5.31. Release built using Java "21" 2023-10-17 LTS build 21.0.1.+12-LTS-29 under Linux Debian 11.6.

Logback 1.5.30

2026-02-14 Release of logback version 1.5.30

• In this version, logback-classic.jar was missing the META-INF/services directory, making it unusable with SLF4J. Version 1.5.31 (released later on the same day) fixes this issue.

• Fix scanning issue when an included file becomes available at a later time. This problem was reported in issues/1021 by Sergey Nazarov.

• Standardized code for version checking across modules.

• A bit-wise identical binary of this version can be reproduced by building from source code at commit 44164f10ca3fb44ce0e68519f13564b87e3aca61 associated with the tag v_1.5.30. Release built using Java "21" 2023-10-17 LTS build 21.0.1.+12-LTS-29 under Linux Debian 11.6.

Logback 1.5.29

2026-02-09 Release of logback version 1.5.29

• In response to issues/1017, appender names and appender references are once again subject to variable substitution, reverting the change introduced in version 1.5.28.

Logback 1.5.28

2026-02-06 Release of logback version 1.5.28

• Appender names or appender references are no longer subject to variable substitution.

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• 124e8b4 prepare release 1.5.33
• d8fd6f2 escapeTags in message field when printing status messages
• 95edbeb hostnameVerification default to true in SSLParametersConfiguration, SSL.DEFAU...
• b768a96 remove spurious java.swing.* import
• 12cf2c5 classes in java.lang and java.util are now whitelisted individually
• e9133ed fix typo
• 47089a2 added Filip Egeric icla
• 85735f7 Modified ConversionRuleAction.java: Updated validPreconditions() to
• 614f7a7 the official name for initial instructions file foe coding agents is AGENTS.md
• fe50bb5 fix: do not warn when both converterClass and class attributes are specified ...
• Additional commits viewable in compare view