When upgrading SailPoint IdentityIQ between releases, it is not necessary to install every version in sequential order between the current version and the target version. SailPoint provides upgrade paths that often allow skipping several major versions by directly upgrading to the desired target version from a supported previous version. However, it is crucial to follow the specific upgrade paths and procedures documented by SailPoint, which may involve intermediate steps or specific considerations depending on the versions involved.
Therefore, the correct answer is B. No.
Reference:
This answer is supported by SailPoint IdentityIQ Upgrade Guides, which detail the approved upgrade paths and instructions for moving between specific versions, indicating that sequential upgrades through every version are not always required.