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#### 2.6.16 Set options for the session

Here is a list of session options which are not yet described with other commands. The general syntax for an Assuan option is:

    OPTION  key=value

Supported keys are:

`agent-awareness`

  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.

`putenv`

  Change the session’s environment to be used for the Pinentry. Valid values are:

  `name`

    Delete envvar name

  `name=`

    Set envvar name to the empty string

  `name=value`

    Set envvar name to the string value.

`use-cache-for-signing`

  See Assuan command `PKSIGN`.

`allow-pinentry-notify`

  This does not need any value. It is used to enable the PINENTRY_LAUNCHED inquiry.