How to update a wordpress versions, plugins, themes via wp-admin panel

Step 1: Login to your admin panel.
Step 2: Under Dashboard option, you will see the updates option.
Step 3: Click the Updates option, you have the options to update themes, plugins, wordpress versions.
Step 4: Under theme option, select the theme that you wish to update or select all option to update all theme.
Step 5: Click the update option.
Step 6: In order to update plugin, select the plugin that you wish to update or select all option to update all plugin.
Step 7: Click the update option.