I think there was a 2 and also a 9 as well...

From https://www.openssl.org/news/cl30.txt

OpenSSL Releases ----------------

- [OpenSSL 3.1](#openssl-31) - [OpenSSL 3.0](#openssl-30) - [OpenSSL 1.1.1](#openssl-111) - [OpenSSL 1.1.0](#openssl-110) - [OpenSSL 1.0.2](#openssl-102) - [OpenSSL 1.0.1](#openssl-101) - [OpenSSL 1.0.0](#openssl-100) - [OpenSSL 0.9.x](#openssl-09x)

End from https://www.openssl.org/news/cl30.txt