Hello @malpica
I’m sorry, the changelog file is shared by all the plugin’s distributions. If you’ve registered your copy of the plugin would be possible to install the updates directly from your WordPress. In other case, you should upgrade the plugin following the instructions below:
1. Download the .zip file with the latest update of your distribution of the plugin to your computer, visiting your personal download link.
2. Go to the plugins section on your WordPress.
3. Deactivate the current copy of the plugin, and then, click on the corresponding “Delete” link.
Note: If you have edited the files of your copy of the plugin, I recommend you create a backup of these files into your personal computer before delete it.
4. Press the “Add New” button at top of section.
5. Press the “Upload Plugin” button, and then, select the zipped file downloaded in the first step.
6. Finally, install and activate the plugin.
Best regards.