Docs: Add a `@since` note to `wp_privacy_exports_dir` and `wp_privacy_exports_url` filters about exports using relative paths since WordPress 5.5.

When changing exports location via these filters, make sure to migrate the files to the new directory, to avoid breaking any existing exports.

Follow-up to [48127], [48330].

Props garrett-eclipse.
Fixes #51361.
Built from https://develop.svn.wordpress.org/trunk@49042


git-svn-id: http://core.svn.wordpress.org/trunk@48804 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/functions.php

@@ -7241,6 +7241,8 @@ function wp_privacy_exports_dir() {
 	 * Filters the directory used to store personal data export files.
 	 *
 	 * @since 4.9.6
+	 * @since 5.5.0 Exports now use relative paths, so changes to the directory
+	 *              via this filter should be reflected on the server.
 	 *
 	 * @param string $exports_dir Exports directory.
 	 */
@@ -7264,6 +7266,8 @@ function wp_privacy_exports_url() {
 	 * Filters the URL of the directory used to store personal data export files.
 	 *
 	 * @since 4.9.6
+	 * @since 5.5.0 Exports now use relative paths, so changes to the directory URL
+	 *              via this filter should be reflected on the server.
 	 *
 	 * @param string $exports_url Exports directory URL.
 	 */

wp-includes/version.php

@@ -13,7 +13,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '5.6-alpha-49041';
+$wp_version = '5.6-alpha-49042';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.