Free for developers.
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Apple Developer Redeem Codes
Free OS X Yosemite(10.10) Developer Preview Redeem Code for Developers
Apple gives free OS X Server 3.0 redeem codes to developers
Last time I said: Apple gives free OS X Server 3.0 redeem codes to developers
After the WWDC2014, Apple gives free redemption code for developers, both iOS and OS X, this time os x 10.10 and server again.
You must login before using these links!
For OS X server:
https://developer.apple.com/devcenter/mac/loadredemptioncode.action?seedId=13CB96H8S4
For OS X Yosemite(10.10) developer preview:
https://developer.apple.com/devcenter/mac/loadredemptioncode.action?seedId=14NEDN932X
I tried these two, got 3 for OS X 10.10 and 2 for OS X Server.
If you have a Developer account, you can add sub-accounts to get almost UNLIMITED codes.
If you have any codes, please share.
You may notice the ‘codes’, yes, you can get many codes if you have developer account.
Here’s the link getting the code.
Just make sure you have logged into your developer account in http://developer.apple.com/
Leave your codes as comment below, thanks.
UPDATE:
If you don’t have a developer account, just click this: https://sskaje.me/sskaje/apple/osxserver.php
Here is a list of codes: https://sskaje.me/sskaje/apple/osxserver.php?a=l
If you’re a programmer, maybe you’ll be interested in iTunes Gift Card AutoRedeemer and Something Changed about AppStore’s Redeem Protocol
UPDATE:
My Apple developer account is banned from this function :s