Deprecated SSL/TLS Versions

SSL 2.0 was deprecated in March 2011 because it was vulnerable to attacks and relied on the outdated MD5 message digest algorithm. SSL 3.0 was deprecated in June 2015 because it was vulnerable to attacks and provided support for RC4, a weak cipher algorithm. TLS 1.0 was deprecated in March 2021 because it was vulnerable to attacks and lacked support for stronger cipher algorithms.