diff --git a/doc/contributing/diagnostic-tooling-support-tiers.md b/doc/contributing/diagnostic-tooling-support-tiers.md
index 597e46986f8803..d9fe2780dbc81f 100644
--- a/doc/contributing/diagnostic-tooling-support-tiers.md
+++ b/doc/contributing/diagnostic-tooling-support-tiers.md
@@ -134,10 +134,8 @@ The tools are currently assigned to Tiers as follows:
 | Debugger  | Command line Debug Client | ?                             | Yes                     | 1           |
 | Tracing   | trace\_events (API)       | No                            | Yes                     | 1           |
 | Tracing   | trace\_gc                 | No                            | Yes                     | 1           |
-| Tracing   | DTrace                    | No                            | Partial                 | 3           |
 | Tracing   | LTTng                     | No                            | Removed?                | N/A         |
 | Tracing   | Systemtap                 | No                            | Partial                 | ?           |
-| Profiling | DTrace                    | No                            | Partial                 | 3           |
 | Profiling | Windows Xperf             | No                            | ?                       | ?           |
 | Profiling | 0x                        | No                            | No                      | 4           |
 | F/P/T     | appmetrics                | No                            | No                      | ?           |