New 'Pro Applications Update' 1.0 Released

Question

So I think this is a new release, it just today popped up for me on Software Updates. It looks like it's mostly for FCP and Compressor, but it does have a new PluginManager 1.7.3 that is used by Logic. The release notes are dated March 28th, but the update just showed up for me today.
Here are the release notes: http://www.apple.com/support/releasenotes/en/FinalCut_Studio_2.0rn/
Just thought I'd alert everyone to this, and start a thread that people can post to with any potential changes/issues with this release and Logic. I haven't downloaded it yet, but will report back when I do.

Answer 1

Thanks for the assumption that I stole Logic Pro.
Woah, eeeeasy there tiger! We're all friends here. No assumptions made, but just throwing out a possible explanations for your troubles, and having a cracked copy is a perfectly plausible one. If it doesn't apply than that's cool.
That is not the case. I have searched and I did not see the typical S/N stickers that came with logic express with the Pro Upgrade. I am not positive, but I believe that when upgrading, you use the original Express SN and that Logic Pro upgrade derives a new SN from the valid SN of express. However, that leaves you with no hard copy of the SN.
You definitely positively have a hard copy of the serial number. Every copy of Logic, no matter whether it's a full version or upgrade, comes with its own unique serial found in the box. I too upgraded from Logic Express so I know this is fact. In the box you'll find a thin white 12 page leaflet entitled 'Installing Your Software' and on it you will find your serial number. You have to type this in when you install Logic on your system, so you must have found it at some point if you have Logic on your system. You can find the number through the applications as you did, but you DO have a hard copy that comes with the software.
However, the SN DID NOT work on the Final Cut Studio page.
If it's a Logic serial, you have to use the Logic downloads page.
If you went to the regular downloads page on the website (http://www.apple.com/support/downloads/) and clicked on the update, it takes you to the Final Cut update page, which is definitely confusing. It's easy to find the Logic website though, just go to apple homepage, type Logic in the search, and the first thing that pops up will be the Logic page (or just remember www.apple.com/logic). At the bottom is a link to the updates.
Its too bad that 1) Apple has to use serialization to protect their intellectual property (but I do support their right to do so) and that 2) this inflicts an additional level of complication on the creative process.
But there's an even easier way! Simply run Software Updates, and if you have Logic installed on your machine it will find this, and all other updates, that you need. You can run Software Updates from the Apple menu on your toolbar with just a single mouse click, or set it up to run automatically through System Preferences. It doesn't get much easier than that! You don't need to go to any website or type in your serial number ever when you allow Software Updates to do this for you. In fact, I've never done any update to Apple software through the Apple website, the Software Update function finds everything I need.
I hope this is helpful. Good Luck!