diff --git a/docs/alternatives/index.md b/docs/alternatives/index.md
index f860511d..5badf78e 100644
--- a/docs/alternatives/index.md
+++ b/docs/alternatives/index.md
@@ -201,7 +201,12 @@ These costs can bring significant benefits, but we still want them to be as smal
         <td class="poor">Very slow, but can be <i>greatly</i> improved by removing I/O support and most units</td>
         <td class="na"></td>
         <td class="na"></td>
-        <td class="good">Possibly "best", but will need to assess all libraries on the same code</td>
+        <td class="good">
+            <ul>
+                <li class="check">Includes `fwd.hh` headers</li>
+                <li>Possibly "best" overall, but will need to assess all libraries on the same code</li>
+            </ul>
+        </td>
     </tr>
     <tr>
         <td>
diff --git a/docs/install.md b/docs/install.md
index 59833520..d14fe1ad 100644
--- a/docs/install.md
+++ b/docs/install.md
@@ -120,7 +120,7 @@ to your `deps` attribute, and include the appropriate files.
 
 | Dependency | Headers provided | Notes |
 |------------|------------------|-------|
-| `@au//au` | `"au/au.hh"`<br>`"au/units/*.hh"` | Core library functionality.  See [all available units](https://github.com/aurora-opensource/au/tree/main/au/units) |
+| `@au//au` | `"au/au.hh"`<br>`"au/fwd.hh"`<br>`"au/units/*.hh"`<br>`"au/units/*_fwd.hh"` | Core library functionality.  See [all available units](https://github.com/aurora-opensource/au/tree/main/au/units) |
 | `@au//au:io` | `"au/io.hh"` | `operator<<` support |
 | `@au//au:testing` | `"au/testing.hh"` | Utilities for writing googletest tests<br>_Note:_ `testonly = True` |
 
@@ -141,7 +141,7 @@ In either case, here are the main targets and include files provided by the Au l
 
 | Target | Headers provided | Notes |
 |--------|------------------|-------|
-| `Au::au` | `"au/au.hh"`<br>`"au/io.hh"`<br>`"au/units/*.hh"` | Core library functionality.  See [all available units](https://github.com/aurora-opensource/au/tree/main/au/units) |
+| `Au::au` | `"au/au.hh"`<br>`"au/fwd.hh"`<br>`"au/io.hh"`<br>`"au/units/*.hh"`<br>`"au/units/*_fwd.hh"` | Core library functionality.  See [all available units](https://github.com/aurora-opensource/au/tree/main/au/units) |
 | `Au::testing` | `"au/testing.hh"` | Utilities for writing googletest tests |
 
 !!! note