Is an upgrade to 4.5 reversible?

[BankFodder]

... back to 4.4.

 

Thanks

[Feneroin]

Files and db back-up of 4.4?

[Joey_M]

I'm not sure if it's advised, but if you have a backup of your site you could just restore that.

Obviously, any posts/data created after would be lost.

Yet you could easy go back if you have a full backup of your database and files.

[Matt]

There's no way to downgrade. I'd always advise taking a back-up of your database and upload folder before running an upgrade.