Project Summary
Logback is intended as a successor to the popular log4j project. Both log4j and logback were founded by the same developer. If you are already familiar with log4j, you will quickly feel at home using logback.
In a Nutshell, Logback...
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has a well established, mature codebase
maintained by a average size development team
with stable Y-O-Y commits -
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took an estimated 17 years of effort (COCOMO model)
starting with its first commit in May, 2006
ending with its most recent commit 4 days ago
Quick Reference
Eclipse Public License 1.0
Permitted
Commercial Use
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Distribute
Sub-License
Private Use
Use Patent Claims
Forbidden
Hold Liable
Use Trademarks
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Distribute Original
Disclose Source
Include Copyright
Include License
Include Install Instructions
Compensate Damages
These details are provided for information only. No information here is legal advice and should not be used as such.
GNU Lesser General Public License v2.1 only
Permitted
Commercial Use
Modify
Distribute
Forbidden
Sub-License
Hold Liable
Required
Distribute Original
Disclose Source
Include Copyright
State Changes
Include License
Include Notice
These details are provided for information only. No information here is legal advice and should not be used as such.
Project Security
Vulnerabilities per Version ( last 10 releases )
Project Vulnerability Report
Security Confidence Index
Vulnerability Exposure Index
Did You Know...
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65% of companies leverage OSS to speed application development in 2016
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check out hot projects on the Open Hub
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there are over 3,000 projects on the Open Hub with security vulnerabilities reported against them
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30 Day SummaryJan 21 2026 — Feb 20 2026
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12 Month SummaryFeb 20 2025 — Feb 20 2026
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