Upgrading Drupal

Hello

I have already upgraded from 4.7.3 to 5.6
now I have a trouble in the contents access , that is
an anonymous user can't see any pages contents or any book pages contents

any idea please ??

I had created a site with drupal years ago, then 4.5.1 ..
Now I want to upgrade it to newer version.

Tell me which one is suitable.
should go for 4.7.x or for 5.x ?

Also, when I try to upgrade directly to 5.x .. whole site was messed even on following instruction.

So is it true that I can't upgrade directly to 5.x, rather I need to do incremental upgrade ?

Help please !!

Hi all, I just recently upgraded from 5.3 -> 5.6 and notice that my Who's Online block is no longer accurate.

I have it set to show only those within the last 15 minutes of activity, yet some member names remain in the list for hours after they've left.

Is there a table I should empty (or check) or maybe another suggestion of where to look?

Thanks,
Brad

I currently use Drupal 5.1 and would like to introduce a Forum module.
Do I need to upgrade to version 5.6 to protect against security vulnerabilities associated with the forums, or am I safe using version 5.1?
I am concerned about adversely impacting custom applications by upgrading to 5.6, and want to know if the security risks make the upgrade necessary. Thanks.

I installed 5.1, which was part of a WAMP stack. After setting up the admin, running the cron, setting files and a couple of other things, I decided to go ahead and update to 5.6. When I got to step 5, remove all the old files, I kept getting a windows error that I could not delete includes because it was in use. The only thing I could see as using any part of Drupal was IE, so in spite of the instructions to keep this window open, I closed it to see if that would fix the problem. It did not. Then I tried stopping Apache and Mysql, but that didn't work either. I ended up having to download sysinternals process explorer to find out notepad.exe still had common.inc open even though that was yesterday and notepad itself was not open. Now I was able to delete the old files and move in all the new files. I ran update and it said it went ok. Then when I logged in, (the Drupal site was offline) I kept getting 'page not found'. I ran several searches here on the Drupal.org site but could not find anything exactly on point, and then I realized I needed to start apache and mysql again.

I've just upgraded my drupal-site to the newest stable release.

Everything went smoothly, except for the fact that my images can't be shown.

Info on the galleries remain correct, all files are present but I get the warnings:

Ferie i Boegebjerglund med Anna og Ryan (183)'s original derivative image was missing. The derivatives will be rebuilt to regenerate it.
Ferie i Boegebjerglund med Anna og Ryan (183)'s thumbnail derivative image was missing. The derivatives will be rebuilt to regenerate it.
Ferie i Boegebjerglund med Anna og Ryan (183)'s preview derivative image was missing. The derivatives will be rebuilt to regenerate it.

and

The derivative images for Ferie i Boegebjerglund med Anna og Ryan (183) have been regenerated.
warning: Division by zero in /customers/humsk.dk/humsk.dk/httpd.www/includes/image.inc on line 125.
warning: imagecreatetruecolor() [function.imagecreatetruecolor]: Invalid image dimensions in /customers/humsk.dk/humsk.dk/httpd.www/includes/image.inc on line 238.
warning: imagecopyresampled(): supplied argument is not a valid Image resource in /customers/humsk.dk/humsk.dk/httpd.www/includes/image.inc on line 264.
warning: imagejpeg(): supplied argument is not a valid Image resource in /customers/humsk.dk/humsk.dk/httpd.www/includes/image.inc on line 339.