SSL/TLS Version Reference
Reference for SSL/TLS protocol versions and security status.
| Version | Year | Status | Secure | RFC |
|---|---|---|---|---|
| SSL 2.0 | 1995 | Deprecated | No | N/A |
| SSL 3.0 | 1996 | Deprecated | No | RFC 6101 |
| TLS 1.0 | 1999 | Deprecated | No | RFC 2246 |
| TLS 1.1 | 2006 | Deprecated | No | RFC 4346 |
| TLS 1.2 | 2008 | Current | Yes | RFC 5246 |
| TLS 1.3 | 2018 | Latest | Yes | RFC 8446 |
Most secure and performant. Reduced handshake latency. Preferred version.
Key Features:
0-RTT resumption1-RTT handshakeRemoved legacy ciphersForward secrecy requiredEncrypted handshakeSimplified cipher suites
Cipher Suites:
AES-128-GCMAES-256-GCMCHACHA20-POLY1305
Recommendation
Use TLS 1.3 where possible, with TLS 1.2 as fallback. Disable all SSL versions and TLS 1.0/1.1.