Upgrading Drupal

Downloaded Beta 12, as per the documentation (UPGRADE.txt), I removed all except /sites

Copied all Beta12 files, then went to site/drupal/update.php (update.php does not exists, but it seems to try to load).

Then I get the following:

Additional uncaught exception thrown while handling exception.
Original

Update 7.37 to 7.38 using drush pm-update only updates CHANGELOG.txt.

Dears,

Kindly I've tried to upgrade drupal to the latest security version, while running Update.php I have following error:
(Fatal error: Allowed memory size of x bytes exhausted (tried to allocate y bytes) in /includes/cache.inc on line 454).

I fix this problem by creating a new file php.ini, and add the code...
php_value memory_limit = "128M"
And add the line
ini_set('memory_limit', '512M');
to my [Drupal 7 root]/sites/default/settings.php file.

But previous fatal error causes: The whole website theme is damaged.

I am a software engineer by training and new to dealing with CMSs including Drupal. I inherited a Web server that I am in the process of moving to the cloud. I have copied all of the Drupal files and database to our new hosted system. Everything looked fine and then I updated the Drupal core and modules that were out of date. 

I went from Drupal 6.26 to 6.36. The good news is that the updates fixed known security issues and now I have a bunch of pretty green checkboxes on the Available Updates page.  The less good news is that the administration menu is gone.

Okay, this is kind of a doozy. This could potentially be multiple issues (and please don't just say something like "don't use Windows" >_>).

So the website is currently running on Server 2003 (IIS 6) and we're migrating to 2012 R2 (IIS 8.5).

Hello,

I am using module "Flash Node" https://www.drupal.org/project/flashnode to my site http://www.oneonlinegames.com/

Currently this site is using Drupal 6.x and want to upgrade into Drupal 7.x .

"Flash Node" module doesn't have support for Drupal 7.x, and my site is majorly dependent on this module. All flash games are using "Flash Node", and approx 25000 nodes are created through this module.