diff --git a/content/reference-data-api.md b/content/reference-data-api.md
index b245c24404..9f5d4b080d 100644
--- a/content/reference-data-api.md
+++ b/content/reference-data-api.md
@@ -1422,7 +1422,7 @@ Each object in the `components` array of the Volume Objects represent the volume
 | amount | Number | The amount of volume in the market, in units of the base currency. |
 | base   | Object | The `currency` and `issuer` that identify the base currency of this market. There is no `issuer` for XRP. |
 | counter | Object | The `currency` and `issuer` that identify the counter currency of this market. There is no `issuer` for XRP. |
-| converted\_amount | Number | The total amount of volume in the market, converted to the display currency. |
+| converted\_amount | Number | The total amount of volume in the market, converted to the display currency. _(Before [v2.1.0][], this was `convertedAmount`.)_ |
 
 #### Example ####
 
@@ -1570,7 +1570,7 @@ Each object in the `components` array of the Volume Objects represent the volume
 | amount | Number | Total payment volume for this currency during the interval, in units of the currency itself. |
 | count  | Number | The total number of payments in this currency |
 | rate   | Number | The exchange rate between this currency and the display currency. |
-| converted\_amount | Number | Total payment volume for this currency, converted to the display currency. |
+| converted\_amount | Number | Total payment volume for this currency, converted to the display currency. _(Before [v2.1.0][], this was `convertedAmount`.)_ |
 
 #### Example ####
 
diff --git a/reference-data-api.html b/reference-data-api.html
index f8bb627162..da37f5c593 100644
--- a/reference-data-api.html
+++ b/reference-data-api.html
@@ -2217,7 +2217,7 @@
 <tr>
 <td>converted_amount</td>
 <td>Number</td>
-<td>The total amount of volume in the market, converted to the display currency.</td>
+<td>The total amount of volume in the market, converted to the display currency. <em>(Before <a href="https://github.com/ripple/rippled-historical-database/releases/tag/v2.1.0">v2.1.0</a>, this was <code>convertedAmount</code>.)</em></td>
 </tr>
 </tbody>
 </table>
@@ -2432,7 +2432,7 @@
 <tr>
 <td>converted_amount</td>
 <td>Number</td>
-<td>Total payment volume for this currency, converted to the display currency.</td>
+<td>Total payment volume for this currency, converted to the display currency. <em>(Before <a href="https://github.com/ripple/rippled-historical-database/releases/tag/v2.1.0">v2.1.0</a>, this was <code>convertedAmount</code>.)</em></td>
 </tr>
 </tbody>
 </table>