Title: Will Upgrade ‘Kill’ My post.php?? Last modified: August 19, 2016 --- # Will Upgrade ‘Kill’ My post.php?? * Resolved [Matt Blank](https://wordpress.org/support/users/mattblank/) * (@mattblank) * [18 years, 5 months ago](https://wordpress.org/support/topic/will-upgrade-kill-my-postphp/) * Hi guys, * I only started using WP about 4 weeks ago and this is my first notifcation of an upgrade needing. * I’ve altered a heap load of files to customise my admin section. To name a few: edit-form-advanced.php edit-page-form.php post-new.php as well as non admin files such as general-template.php * If I were to upgrade, which I suppose I should, the new version will overide all the changes that took me about two weeks to implement! * Any ideas what I should do? Or could do for the future??? * Thanks! Any advise would be appreciated! Matt Viewing 6 replies - 1 through 6 (of 6 total) * [MichaelH](https://wordpress.org/support/users/michaelh/) * (@michaelh) * [18 years, 5 months ago](https://wordpress.org/support/topic/will-upgrade-kill-my-postphp/#post-672524) * Doesn’t look like any of those files were changed from 2.3.1 to 2.3.2. * Make backups of those files. Follow the procedures in [Upgrading WordPress Extended](http://codex.wordpress.org/Upgrading_WordPress_Extended) then put your ‘customized’ files back in place. * Backup backup backup is the key here. * [WordPress Backups](http://codex.wordpress.org/WordPress_Backups) * [Michael Fields](https://wordpress.org/support/users/mfields/) * (@mfields) * [18 years, 5 months ago](https://wordpress.org/support/topic/will-upgrade-kill-my-postphp/#post-672525) * Hi. You can check out the [List of Revised Files](http://codex.wordpress.org/Version_2.3.2#List_of_Files_Revised) for 2.3.2. _Hypothetically_, you _*should*_ be able to upload only new versions of these files. I would **definitely back up my entire WordPress installation** before attempting this though or **better yet** set up a test installation in a sub domain, install version 2.3.1, then overwrite all [revised files](http://codex.wordpress.org/Version_2.3.2#List_of_Files_Revised) from the 2.3.2 distribution. * For the future, try using wordpress actions and filters instead of modifying the core files. You can find out info about them in the [Plugin API](http://codex.wordpress.org/Plugin_API) I know that a lot of the time, modifying the core is faster and easier, but when it comes time to upgrade, all of that _saved time_ is spent comparing the core files that you edited with the new versions – sometimes they can change dramatically or even become depreciated. * If you cannot find an action or filter hook where you need it, one trick that I use is to copy the function verbatim from core into my theme’s functions.php file, rename it and add the functionality that I need. * Thread Starter [Matt Blank](https://wordpress.org/support/users/mattblank/) * (@mattblank) * [18 years, 5 months ago](https://wordpress.org/support/topic/will-upgrade-kill-my-postphp/#post-672526) * Thanks for the quick reply Michael. * Hopefully I’ll remember which files I’ve changed and do what you suggest!! * If it was to be the case that they update a file I’ve customised, is it just a case of going through it and changing it again afterwards? * Also, where can I see a list of which files have been updated in the latest version? * Finally, would you suggest I use this plugin: [http://wordpress.org/extend/plugins/wordpress-automatic-upgrade/](http://wordpress.org/extend/plugins/wordpress-automatic-upgrade/) * Many thanks! Matt * Thread Starter [Matt Blank](https://wordpress.org/support/users/mattblank/) * (@mattblank) * [18 years, 5 months ago](https://wordpress.org/support/topic/will-upgrade-kill-my-postphp/#post-672528) * Hi mfields, thanks for your reply to! * So based on that page you linked, if I download and JUST upload the below files, then the update will be done? wp-admin\admin.php wp-admin\includes\file.php wp-admin\install.php wp-admin\setup-config.php wp-app.php wp-content\plugins\ akismet\akismet.php wp-includes\formatting.php wp-includes\functions.php wp-includes\ pluggable.php wp-includes\post.php wp-includes\query.php wp-includes\taxonomy. php wp-includes\version.php wp-includes\wp-db.php wp-mail.php wp-settings.php xmlrpc.php * As it’s not a massive amount of files, this seems to potentially be the fastest option! * Thanks! Matt * [Michael Fields](https://wordpress.org/support/users/mfields/) * (@mfields) * [18 years, 5 months ago](https://wordpress.org/support/topic/will-upgrade-kill-my-postphp/#post-672530) * Hypothetically, yes. Please though – follow the instructions here: [Upgrading WordPress Extended](http://codex.wordpress.org/Upgrading_WordPress_Extended) like Michael Suggested. Only do not “Delete the old WordPress files” like suggested in #7 because this would kill you custom code. And in Step #8 instead of uploading the entire WordPress core, only upload the files on the list – overwriting the ones on your server. * After upgrading, I would make it a point to move all of the custom functionality from the core to plugins or `functions.php`. Next upgrade might not be as easy. * Thread Starter [Matt Blank](https://wordpress.org/support/users/mattblank/) * (@mattblank) * [18 years, 5 months ago](https://wordpress.org/support/topic/will-upgrade-kill-my-postphp/#post-672548) * I updated just the files that they listed and everything seems to be working fine! * Many thanks for you help….stress over :o) * Matt Viewing 6 replies - 1 through 6 (of 6 total) The topic ‘Will Upgrade ‘Kill’ My post.php??’ is closed to new replies. ## Tags * [upgrading](https://wordpress.org/support/topic-tag/upgrading/) * In: [Installing WordPress](https://wordpress.org/support/forum/installation/) * 6 replies * 3 participants * Last reply from: [Matt Blank](https://wordpress.org/support/users/mattblank/) * Last activity: [18 years, 5 months ago](https://wordpress.org/support/topic/will-upgrade-kill-my-postphp/#post-672548) * Status: resolved ## Topics ### Topics with no replies ### Non-support topics ### Resolved topics ### Unresolved topics ### All topics