- The backup config file in versions 5.2.0-5.2.4 containing certificate config might not be restored properly (causing config to be lost). After upgrading to v5.2.7, please discard the old v5.2.x config file, backup the config file in v5.2.7 again.
- Keep the old SSL version predefined config to ensure a smooth upgrade.
- HSM does not support TLSv1.3. If the HSM certificate is used in VS, the TLSv1.3 handshake will fail. Workaround: Uncheck the TLSv1.3 in the SSL profile if you are using the HSM certificate to avoid potential handshake failure.