3 files changed, 7 insertions, 4 deletions
diff --git a/include/olm/inbound_group_session.h b/include/olm/inbound_group_session.h
index 59146c2..f8a0bc3 100644
--- a/include/olm/inbound_group_session.h
+++ b/include/olm/inbound_group_session.h
@@ -140,7 +140,8 @@ size_t olm_group_decrypt(
     uint8_t * message, size_t message_length,
 
     /* output */
-    uint8_t * plaintext, size_t max_plaintext_length
+    uint8_t * plaintext, size_t max_plaintext_length,
+    uint32_t * message_index
 );
 
 
diff --git a/include/olm/olm.h b/include/olm/olm.h
index 3257e53..5764eb2 100644
--- a/include/olm/olm.h
+++ b/include/olm/olm.h
@@ -320,7 +320,8 @@ int olm_session_has_received_message(
 
 /** Checks if the PRE_KEY message is for this in-bound session. This can happen
  * if multiple messages are sent to this account before this account sends a
- * message in reply. Returns olm_error() on failure. If the base64
+ * message in reply. Returns 1 if the session matches. Returns 0 if the session
+ * does not match. Returns olm_error() on failure. If the base64
  * couldn't be decoded then olm_session_last_error will be "INVALID_BASE64".
  * If the message was for an unsupported protocol version then
  * olm_session_last_error() will be "BAD_MESSAGE_VERSION". If the message
@@ -333,7 +334,8 @@ size_t olm_matches_inbound_session(
 
 /** Checks if the PRE_KEY message is for this in-bound session. This can happen
  * if multiple messages are sent to this account before this account sends a
- * message in reply. Returns olm_error() on failure. If the base64
+ * message in reply. Returns 1 if the session matches. Returns 0 if the session
+ * does not match. Returns olm_error() on failure. If the base64
  * couldn't be decoded then olm_session_last_error will be "INVALID_BASE64".
  * If the message was for an unsupported protocol version then
  * olm_session_last_error() will be "BAD_MESSAGE_VERSION". If the message
diff --git a/include/olm/outbound_group_session.h b/include/olm/outbound_group_session.h
index 90ccca3..663f1d2 100644
--- a/include/olm/outbound_group_session.h
+++ b/include/olm/outbound_group_session.h
@@ -96,7 +96,7 @@ size_t olm_init_outbound_group_session_random_length(
  */
 size_t olm_init_outbound_group_session(
     OlmOutboundGroupSession *session,
-    uint8_t const * random, size_t random_length
+    uint8_t *random, size_t random_length
 );
 
 /**