clearify response when last_issue_date is given

1 files changed, 10 insertions, 0 deletions

diff --git a/design-documents/024-age-restriction.rst b/design-documents/024-age-restriction.rst
index e2eb44ab..ce6d5629 100644
--- a/design-documents/024-age-restriction.rst
+++ b/design-documents/024-age-restriction.rst
@@ -119,6 +119,7 @@ additional field ``age_restricted_denoms``.  This is an *additional* list of
 denominations that must be used for during modified ``refresh`` and ``deposit``
 operations (see below).
 
+
 The data structure for those denominations is the same as for the regular ones
 in ``ExchangeKeysResponse.denoms``.  **However**, the following differences
 apply for each denomination in the list:
@@ -131,6 +132,11 @@ apply for each denomination in the list:
 2. The value of ``TALER_DenominationKeyValidityPS.purpose`` is set to
    ``TALER_SIGNATURE_MASTER_AGE_RESTRICTED_DENOMINATION_KEY_VALIDITY``.
 
+And similar to ``.denoms``, if the query parameter ``last_issue_date`` was
+provided by the client, the exchange will only return the keys that have
+changed since the given timestamp.
+
+
 .. ts:def:: ExchangeKeysResponse
 
    interface ExchangeKeysResponse {
@@ -152,6 +158,10 @@ apply for each denomination in the list:
    //
    //  2. The value of ``TALER_DenominationKeyValidityPS.purpose`` is set to
    //     ``TALER_SIGNATURE_MASTER_AGE_RESTRICTED_DENOMINATION_KEY_VALIDITY``
+   //
+   // Similar as for ``.denoms``, if the query parameter ``last_issue_date``
+   // was provided by the client, the exchange will only return the keys that
+   // have changed since the given timestamp.
    age_restricted_denoms: Denom[];
 
    //...