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nathanfunk merged 2 commits into from
Feb 7, 2026
Merged

Add prominent notice directing users to commercial version #13

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496a096
Add prominent notice about commercial version
nathanfunk Feb 7, 2026
dcf62d5
Revise messaging: position GPL as stable/mature rather than abandoned
nathanfunk Feb 7, 2026
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30 changes: 25 additions & 5 deletions README.md
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Expand Up @@ -2,7 +2,9 @@ Jep Java GPL
============
[![Maven Central](https://img.shields.io/maven-central/v/io.github.nathanfunk/jep.svg)](https://central.sonatype.com/artifact/io.github.nathanfunk/jep) [![javadoc](https://javadoc.io/badge2/io.github.nathanfunk/jep/javadoc.svg)](https://javadoc.io/doc/io.github.nathanfunk/jep)

The offical Jep - Java Expression Parser GPL release
The official Jep - Java Expression Parser GPL release

> **Looking for the latest features?** Check out the [**commercial version (Jep 4.x)**](https://www.singularsys.com/jep) with active development, advanced features, and enterprise support. Latest release: **February 2026**

View the documentation - http://htmlpreview.github.io/?https://github.com/nathanfunk/jep-java-gpl/blob/master/doc/html/index.html

Expand Down Expand Up @@ -55,8 +57,26 @@ Features
- Extensive documentation
- Includes JavaCC grammar from which the main classes are generated

The commercialversion of Jep (http://singularsys.com/jep) includes additional features:
- Improved evaluation speed
- High precision using BigDecimals
- Substantially increased customizability
## GPL vs Commercial Versions

This repository contains the **open source GPL version** of Jep, suitable for projects compatible with GPL licensing.

For production applications and advanced features, the **commercial version** offers:

| Feature | GPL (2.x) | Commercial (4.x) |
|---------|-----------|------------------|
| **Active Development** | Stable/Mature | ✅ Latest: Feb 2026 |
| **Basic Evaluation** | ✅ | ✅ |
| **Performance** | Good | ⚡ Significantly Faster |
| **Precision** | Standard | ✅ BigDecimal Support |
| **Java Compatibility** | Java 1.5+ | ✅ Java 8 - 17+ |
| **Extensions** | Basic | ✅ Symbolic ops, matrices, more |
| **Enterprise Support** | Community | ✅ Available |
| **License** | GPL | Commercial |

**Commercial Version:** http://www.singularsys.com/jep
**Try it:** [Download Trial](https://www.singularsys.com/jep/download-trial.php) | [Features](https://www.singularsys.com/jep/) | [Purchase](https://www.singularsys.com/order/)

---

**License:** GNU General Public License (GPL)