As there are a number of different image releases with the same major version (e.g. R77.30), it's sometimes important to check the version of image you are using via the CLI. The standard tools (e.g. fw ver) does not provide this information.
Refer to the following SecureKnowledge article: How to determine image version of an installed vSEC for Azure, vSEC for AWS, and vSEC for Google Cloud Platform?