CAISO is in the process of upgrading UI, web services, and ads web
layer technology to newer versions
– Maintain vendor recommended and supported software versions
• Linux Operating System, Apache, Actional Intermediary
– Add support for newer security protocols
• TLS 1.1 and TLS 1.2
– Improve supportability
– Add additional logging forensics and
diagnostics to help address Production issues

It is necessary for market participants to enable TLS 1.2 in browsers and application programming interfaces (APIs) as soon as possible in order to continue to access the MAP stage environment from September 6 onwards, and to continue to access the production environment from October 16 onwards. Market participants can enable TLS 1.2 now as the MAP stage and production environments currently allow TLS 1.2. Note: it isn’t necessary for market participants to manually disable TLS 1.0 and 1.1 in browsers and APIs because the TLS handshake will negotiate the highest mutually available version.

For More Information Please Visit: CAISO TECHNICAL USER GROUP INFO

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