Release 1.1.12

Release Notes - Version 1.1.12

Release Date: January 12, 2026

🐞 Bug Fix

Fixed: Custom field names now preserve case when mergeCustomFields=true

Previously, custom field names like businessGroup and departmentName were converted to lowercase (businessgroup, departmentname) in New Relic.

Before:

• businessgroup: "Sales"
• departmentname: "Finance"

After:

• businessGroup: "Sales"
• departmentName: "Finance"

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🛠 Changes

• Added putPreserveCase() method to LowercaseKeyMap
• Updated custom field handling in LogForwarder
• Added whitespace trimming to custom field parsing

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📦 Upgrade

<dependency>
    <groupId>com.newrelic.labs</groupId>
    <artifactId>custom-log4j2-appender</artifactId>
    <version>1.1.12</version>
</dependency>