Added release notes for Forms 13.4-rc3 and 15.1-rc3

Author: AndyButland

13/umbraco-forms/release-notes.md

@@ -16,6 +16,10 @@ If you are upgrading to a new major version, you can find information about the
 
 This section contains the release notes for Umbraco Forms 13 including all changes for this version.
 
+#### [**13.4.0-rc3**](https://github.com/umbraco/Umbraco.Forms.Issues/issues?q=is%3Aissue+is%3Aclosed+label%3Arelease%2F13.4.0) **(December 20th 2024)**
+
+* Rendered a hidden submit button on multi-page forms. Ensures that a default button to go forward is used when submitting a form via return key press or a mobile "Go" button [#1343](https://github.com/umbraco/Umbraco.Forms.Issues/issues/1343).
+
 #### [**13.4.0-rc2**](https://github.com/umbraco/Umbraco.Forms.Issues/issues?q=is%3Aissue+is%3Aclosed+label%3Arelease%2F13.4.0) **(December 20th 2024)**
 
 * Resolved issue where maximum length check on input field was applied to incorrect field [#1342](https://github.com/umbraco/Umbraco.Forms.Issues/issues/1342).

15/umbraco-forms/release-notes.md

@@ -18,6 +18,10 @@ If you are upgrading to a new major version, you can find information about the
 
 This section contains the release notes for Umbraco Forms 15 including all changes for this version.
 
+#### [**15.1.0-rc3**](https://github.com/umbraco/Umbraco.Forms.Issues/issues?q=is%3Aissue+is%3Aclosed+label%3Arelease%2F15.1.0) **(December 20th 2024)**
+
+* Rendered a hidden submit button on multi-page forms. Ensures that a default button to go forward is used when submitting a form via return key press or a mobile "Go" button [#1343](https://github.com/umbraco/Umbraco.Forms.Issues/issues/1343).
+
 #### [**15.1.0-rc2**](https://github.com/umbraco/Umbraco.Forms.Issues/issues?q=is%3Aissue+is%3Aclosed+label%3Arelease%2F15.1.0) **(December 20th 2024)**
 
 * Used the name and description defined on the setting attribute for backoffice labels when no client-side localization is available [#1336](https://github.com/umbraco/Umbraco.Forms.Issues/issues/1336).