SSL version one was never released, version two did but had some major flaws, SSL version 3 was a rewrite of version two (to fix these flaws) and TLS version 1 an improvement of SSL version 3. Since the release of TLS 1.0, the changes have been less significant, but never less important.
UnityWebRequest - Unable to complete SSL connection Mar 12, 2019 curl - SSL peer does not support certificates of the type Given that this is an alert send by the server (received by the client) the problem is not the server certificate but the (also unknown) client certificatemy.cert.pem.I've seen such kind of problems for example if the client certificate has not the appropriate key usage extension or maybe even the signing CA restricts the key usage and does not allow the certificate to be used as client Google isn't Enforcing Certificate Transparency until
Thunderbird — Release Notes (68.0) — Thunderbird
SSL error while cloning cache of DataFrames · Issue #18871
Apr 29, 2020
Secure Connection Failed An error occurred during a Explore Our Help Articles. Dig into the knowledge base, tips and tricks, troubleshooting, and so much more. Firefox Browser; Firefox Private Network HTTP Sites Will Mark “Not Secure” in Google Chrome 68 from We can say this is Google’s most forceful attempt to encourage adoption of SSL certificates. Chrome browser will start labeling HTTP websites “Not Secure”. Google Chrome 68 is set to be released in July, will come with this special feature to hit websites with unsecured connections.