- The backup config file in versions 5.2.0-5.2.4/5.3.0-5.3.1 containing certificate config might not be restored properly (causing config to be lost). After upgrading to 5.4.2, please discard the old V5.2.x/V5.3.x config file, backup the config file in V5.4.2 again.
- Keep the old SSL version predefined config to ensure a smooth upgrade.
- HSM does not support TLVv1.3. 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.