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If you are using Wordpress 2.7 or above, you may feel one very annoying feature called Post Revisions. This feature is quite unnecessary especially for single author blogs. It saves a complete new copy of our posts each time we edit or save it. So, naturally it occupies and simply wastes our disk space. I think Wordpress should have an option on the writing setting section to enable or disable this post revision feature. Anyways, still you can disable this just by inserting a single line code on the wp-config.php file which can be found at the root directory.

Just open wp-config.php and right after the line “<?php” put the code below,

define('WP_POST_REVISIONS', false);

Now just save the file and you’re done.