diff --git a/wp-admin/includes/upgrade.php b/wp-admin/includes/upgrade.php
index b1ea309810..afc5abc171 100644
--- a/wp-admin/includes/upgrade.php
+++ b/wp-admin/includes/upgrade.php
@@ -2184,7 +2184,7 @@ function upgrade_network() {
 	// Always clear expired transients.
 	delete_expired_transients( true );
 
-	// 2.8
+	// 2.8.0
 	if ( $wp_current_db_version < 11549 ) {
 		$wpmu_sitewide_plugins   = get_site_option( 'wpmu_sitewide_plugins' );
 		$active_sitewide_plugins = get_site_option( 'active_sitewide_plugins' );
@@ -2215,12 +2215,12 @@ function upgrade_network() {
 		}
 	}
 
-	// 3.0
+	// 3.0.0
 	if ( $wp_current_db_version < 13576 ) {
 		update_site_option( 'global_terms_enabled', '1' );
 	}
 
-	// 3.3
+	// 3.3.0
 	if ( $wp_current_db_version < 19390 ) {
 		update_site_option( 'initial_db_version', $wp_current_db_version );
 	}
@@ -2231,7 +2231,7 @@ function upgrade_network() {
 		}
 	}
 
-	// 3.4
+	// 3.4.0
 	if ( $wp_current_db_version < 20148 ) {
 		// 'allowedthemes' keys things by stylesheet. 'allowed_themes' keyed things by name.
 		$allowedthemes  = get_site_option( 'allowedthemes' );
@@ -2249,7 +2249,7 @@ function upgrade_network() {
 		}
 	}
 
-	// 3.5
+	// 3.5.0
 	if ( $wp_current_db_version < 21823 ) {
 		update_site_option( 'ms_files_rewriting', '1' );
 	}
@@ -2264,7 +2264,7 @@ function upgrade_network() {
 		}
 	}
 
-	// 4.2
+	// 4.2.0
 	if ( $wp_current_db_version < 31351 && 'utf8mb4' === $wpdb->charset ) {
 		if ( wp_should_upgrade_global_tables() ) {
 			$wpdb->query( "ALTER TABLE $wpdb->usermeta DROP INDEX meta_key, ADD INDEX meta_key(meta_key(191))" );
@@ -2285,7 +2285,7 @@ function upgrade_network() {
 		}
 	}
 
-	// 4.3
+	// 4.3.0
 	if ( $wp_current_db_version < 33055 && 'utf8mb4' === $wpdb->charset ) {
 		if ( wp_should_upgrade_global_tables() ) {
 			$upgrade = false;
@@ -2314,7 +2314,7 @@ function upgrade_network() {
 		}
 	}
 
-	// 5.1
+	// 5.1.0
 	if ( $wp_current_db_version < 44467 ) {
 		$network_id = get_main_network_id();
 		delete_network_option( $network_id, 'site_meta_supported' );
@@ -2327,7 +2327,7 @@ function upgrade_network() {
 //
 
 /**
- * Creates a table in the database if it doesn't already exist.
+ * Creates a table in the database, if it doesn't already exist.
  *
  * This method checks for an existing database and creates a new one if it's not
  * already present. It doesn't rely on MySQL's "IF NOT EXISTS" statement, but chooses
@@ -2337,9 +2337,9 @@ function upgrade_network() {
  *
  * @global wpdb $wpdb WordPress database abstraction object.
  *
- * @param string $table_name Database table name to create.
+ * @param string $table_name Database table name.
  * @param string $create_ddl SQL statement to create table.
- * @return bool If table already exists or was created by function.
+ * @return bool True on success or if the table already exists. False on failure.
  */
 function maybe_create_table( $table_name, $create_ddl ) {
 	global $wpdb;
@@ -2410,16 +2410,16 @@ function add_clean_index( $table, $index ) {
 }
 
 /**
- * Adds column to a database table if it doesn't already exist.
+ * Adds column to a database table, if it doesn't already exist.
  *
  * @since 1.3.0
  *
  * @global wpdb $wpdb WordPress database abstraction object.
  *
- * @param string $table_name  The table name to modify.
- * @param string $column_name The column name to add to the table.
- * @param string $create_ddl  The SQL statement used to add the column.
- * @return bool True if already exists or on successful completion, false on error.
+ * @param string $table_name  Database table name.
+ * @param string $column_name Table column name.
+ * @param string $create_ddl  SQL statement to add column.
+ * @return bool True on success or if the column already exists. False on failure.
  */
 function maybe_add_column( $table_name, $column_name, $create_ddl ) {
 	global $wpdb;
@@ -2451,7 +2451,7 @@ function maybe_add_column( $table_name, $column_name, $create_ddl ) {
  * @global wpdb $wpdb WordPress database abstraction object.
  *
  * @param string $table The table to convert.
- * @return bool true if the table was converted, false if it wasn't.
+ * @return bool True if the table was converted, false if it wasn't.
  */
 function maybe_convert_table_to_utf8mb4( $table ) {
 	global $wpdb;
diff --git a/wp-admin/install-helper.php b/wp-admin/install-helper.php
index 1c76f18bb7..d46d7cc03c 100644
--- a/wp-admin/install-helper.php
+++ b/wp-admin/install-helper.php
@@ -39,15 +39,15 @@ require_once dirname( __DIR__ ) . '/wp-load.php';
 
 if ( ! function_exists( 'maybe_create_table' ) ) :
 	/**
-	 * Create database table, if it doesn't already exist.
+	 * Creates a table in the database if it doesn't already exist.
 	 *
 	 * @since 1.0.0
 	 *
 	 * @global wpdb $wpdb WordPress database abstraction object.
 	 *
 	 * @param string $table_name Database table name.
-	 * @param string $create_ddl Create database table SQL.
-	 * @return bool False on error, true if already exists or success.
+	 * @param string $create_ddl SQL statement to create table.
+	 * @return bool True on success or if the table already exists. False on failure.
 	 */
 	function maybe_create_table( $table_name, $create_ddl ) {
 		global $wpdb;
@@ -74,16 +74,16 @@ endif;
 
 if ( ! function_exists( 'maybe_add_column' ) ) :
 	/**
-	 * Add column to database table, if column doesn't already exist in table.
+	 * Adds column to database table, if it doesn't already exist.
 	 *
 	 * @since 1.0.0
 	 *
 	 * @global wpdb $wpdb WordPress database abstraction object.
 	 *
-	 * @param string $table_name Database table name
-	 * @param string $column_name Table column name
-	 * @param string $create_ddl SQL to add column to table.
-	 * @return bool False on failure. True, if already exists or was successful.
+	 * @param string $table_name  Database table name.
+	 * @param string $column_name Table column name.
+	 * @param string $create_ddl  SQL statement to add column.
+	 * @return bool True on success or if the column already exists. False on failure.
 	 */
 	function maybe_add_column( $table_name, $column_name, $create_ddl ) {
 		global $wpdb;
@@ -109,16 +109,16 @@ if ( ! function_exists( 'maybe_add_column' ) ) :
 endif;
 
 /**
- * Drop column from database table, if it exists.
+ * Drops column from database table, if it exists.
  *
  * @since 1.0.0
  *
  * @global wpdb $wpdb WordPress database abstraction object.
  *
- * @param string $table_name Table name
- * @param string $column_name Column name
- * @param string $drop_ddl SQL statement to drop column.
- * @return bool True on success or if the column doesn't exist, false on failure.
+ * @param string $table_name  Database table name.
+ * @param string $column_name Table column name.
+ * @param string $drop_ddl    SQL statement to drop column.
+ * @return bool True on success or if the column doesn't exist. False on failure.
  */
 function maybe_drop_column( $table_name, $column_name, $drop_ddl ) {
 	global $wpdb;
@@ -143,7 +143,7 @@ function maybe_drop_column( $table_name, $column_name, $drop_ddl ) {
 }
 
 /**
- * Check column matches criteria.
+ * Checks that database table column matches the criteria.
  *
  * Uses the SQL DESC for retrieving the table info for the column. It will help
  * understand the parameters, if you do more research on what column information
@@ -162,9 +162,9 @@ function maybe_drop_column( $table_name, $column_name, $drop_ddl ) {
  *
  * @global wpdb $wpdb WordPress database abstraction object.
  *
- * @param string $table_name Table name
- * @param string $col_name   Column name
- * @param string $col_type   Column type
+ * @param string $table_name Database table name.
+ * @param string $col_name   Table column name.
+ * @param string $col_type   Table column type.
  * @param bool   $is_null    Optional. Check is null.
  * @param mixed  $key        Optional. Key info.
  * @param mixed  $default    Optional. Default value.
diff --git a/wp-includes/version.php b/wp-includes/version.php
index 59511888a2..c688806369 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -13,7 +13,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '5.5-alpha-47785';
+$wp_version = '5.5-alpha-47786';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.