diff --git a/Feature-Matrix.md b/Feature-Matrix.md
index 87a445c..a5d5df3 100644
--- a/Feature-Matrix.md
+++ b/Feature-Matrix.md
@@ -18,10 +18,10 @@
 | >    listNumbers                    | ❌ | ❌ | ✅
 | listDevices                         | ✅ | ❌ | ✅<sup>1</sup>
 | listGroups                          | ✅ | ❌ | ✅<sup>19</sup>
-| >    getGroupIds                    | ❌ | ❌ | ✅
-| >    getGroupMembers                | ❌ | ❌ | ✅
-| >    getGroupName                   | ❌ | ❌ | ✅
-| >    isGroupBlocked                 | ❌ | ❌ | ✅
+| >    getGroupIds                    | ✅<sup>26</sup> | ❌ | ✅
+| >    getGroupMembers                | ✅<sup>26</sup> | ❌ | ✅
+| >    getGroupName                   | ✅<sup>26</sup> | ❌ | ✅
+| >    isGroupBlocked                 | ✅<sup>26</sup> | ❌ | ✅
 | listIdentities                      | ✅ | ❌ | ✅<sup>1, 16</sup>
 | >    listIdentity                   | ✅<sup>17</sup> | ❌ | ✅<sup>1</sup>
 | quitGroup                           | ✅ | ❌ | ✅
@@ -170,4 +170,5 @@
 22. NA = Not Applicable
 23. Only works if a secondary device is running the daemon.
 24. Only works if a primary device is running the daemon.
-25. Does not implement the `-a, --trust-all-known-keys` option
\ No newline at end of file
+25. Does not implement the `-a, --trust-all-known-keys` option
+26. Provided as part of the `-d, --detailed` or `--output=json` options.
\ No newline at end of file