Version 6.20 works with JR Server 6.20, 6.4.x, and 7.1 but not with 7.5 or higher. Check your server version first.

Some third-party open-source mirrors store older versions. However, always verify MD5 checksums against official sources to avoid corrupted or malicious files. The official checksums for 6.20 should be available in the community documentation archive.

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