Title: 4.2.1 | Developer.WordPress.org

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# New and updated in 4.2.1

Functions

Hooks

Classes

Methods

 * method[wpdb::get_col_length()](https://developer.wordpress.org/reference/classes/wpdb/get_col_length/)
 * Retrieves the maximum string length allowed in a given column.
 * Used by [3 functions](https://developer.wordpress.org/reference/classes/wpdb/get_col_length/#used-by)
   | Uses [2 functions](https://developer.wordpress.org/reference/classes/wpdb/get_col_length/#uses)
   | Source: [wp-includes/class-wpdb.php:3374](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-includes/class-wpdb.php#L3374-L3450)
 * method[wpdb::process_field_lengths()](https://developer.wordpress.org/reference/classes/wpdb/process_field_lengths/)
 * For string fields, records the maximum string length that field can safely save.
 * Used by [1 function](https://developer.wordpress.org/reference/classes/wpdb/process_field_lengths/#used-by)
   | Uses [2 functions](https://developer.wordpress.org/reference/classes/wpdb/process_field_lengths/#uses)
   | Source: [wp-includes/class-wpdb.php:2991](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-includes/class-wpdb.php#L2991-L3010)