Banner - SSH-2.0-CoreFTP-0.3.3 : What does 0.3.3 mean here?

[Techy_techy]

SSH-2.0-CoreFTP-0.3.3

I am getting this banner upon connecting with latest installed FTP mini server. so can anybody brief it. How it is 0.3.3., i know that's the version format. but i tried mapping it with semantic version, but not sure about it. so i want exact info because in expired version of mini server's there SSH-2.0-CoreFTP-0.3.2.

version format is 0.3.3, 0.3.2 but what does each digit define under semantic format with coreftp publicly available info?

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