How do I uninstall wordpress 4.5?

Delete wp-admin and wp-includes, then upload wp-admin and wp-includes from the last version of WordPress. I did that and it had an error that WP was trying to reach this file wp-includes/class-wp-metadata-lazyloader.php, so I uploaded that file only to wp-includes and my site is fine again.

@websitedesignvegas: That is the wrong way to do a version rollback. One needs to also revert the database from a backup.

@sparksprotection: that error you see has nothing to do with WordPress. It is a server host warning; point that out to your webhost. You do not need to rollback to an older version of WordPress.

In the meantime, remove these debug lines from wp-config.php to stop the errors fro displaying:

define( 'WP_DEBUG', true );
define( 'WP_DEBUG_LOG', true );
define( 'WP_DEBUG_DISPLAY', false);

And follow Otto’s directions below for a fix to add to wp-config.php.

Your MySQL server appears to be old, or is using “old passwords”. The mysqli client does not support old passwords.

Ideally, you need to modify your MySQL server to use the “new password” format. There’s various articles on how to do this around the web. Example:

https://stackoverflow.com/questions/13706463/authentication-method-mysql-old-password-not-supported
https://code.openark.org/blog/mysql/upgrading-passwords-from-old_passwords-to-new-passwords

That would be the correct way to do things. If you want a quick-and-dirty fix instead, then adding this to your wp-config.php file should also work.

define('WP_USE_EXT_MYSQL', true);

That forces WordPress to use the older mysql client instead of the improved mysqli one. However, this is not a good long term solution. You should fix your mysql server passwords, or consider migrating the whole database to a new server.

Mark, I do not know of any other way. Could you point me in the right direction as to how to rollback properly?

An answer to this question would be useful since I too have several key bugs after install with my theme. I am working on it but I may need to go back to a prior version until it gets fixed because it is unacceptable as is. The big ones are drop down menus and category queries for image/portfolio galleries. Right now it is default to old trashed pages for some reason. I am still trying to figure if it is the update, hosting or the theme. One started partially working as I am typing…then the next time not…so we will see.

openyourminddesigns.net

Could you point me in the right direction as to how to rollback properly?

Restore from the backup of your site. Other than that, there is no way to rollback properly.

Rolling back is generally pointless. It’s much easier to simply fix the problem at hand.

Mark and Otto or anyone, please tell me how to roll back to version 4.4.3 (or 4.4.2) from 4.5.2 a little more in detail.
I just found out that NextCellent Gallery works only up to 4.4.3 version. I have upgraded to 4.5.2 a few days ago.
I have problems with NextCellent Gallery. When I click on an image on the thumbnail page, it tries to load the image (on a single, large view), but gets stuck saying “loading” forever. I’m wondering if I go back to WorPres 4.4.3, it might work….
The url is:
https://jenny-long.com/wp/newwork/
Thank you.

Nasu: Perhaps rather than rolling back to an old version of WordPress, you should switch to a gallery plugin that works with the current version. You might also post a question here:

https://www.ads-software.com/support/plugin/nextcellent-gallery-nextgen-legacy

Sterndata, please tell me which gallery plugin I should switch to.
Yes, I did post this question to your suggested link.
Thank you.

it looks like nextcellent is an “old” version of NextGen, so you might consider that.

By the way, when you see on the plugin’s page “Compatible up to: 4.4.3”, that doesn’t mean it’s incompatible with newer versions. It usually means they haven’t done an update recently so that information hasn’t changed.

Sterndata, my understanding is that Nextcellent is a New version of NextGen!