Here is a list of session options which are not yet described with other commands. The general syntax for an Assuan option is:
Supported keys are:
This may be used to tell gpg-agent of which gpg-agent version the client is aware of. gpg-agent uses this information to enable features which might break older clients.
Change the session’s environment to be used for the Pinentry. Valid values are:
Delete envvar name
Set envvar name to the empty string
Set envvar name to the string value.
See Assuan command
This does not need any value. It is used to enable the PINENTRY_LAUNCHED inquiry.