When trying to find out what fixes a new v12.0.1 EBF will contain, I'm using the according "Info" button (of the according SP entry - here for SP90) in the SAP download portal:
Then a popup is displayed, and I'm choosing the link right behind the word "Hinweis":
For older EBFs, that will request the credentials again, will then display another page, and that will give access to the desired readme file (yes, that's a long way for former Sybase users...).
But for the new EBF 4278, the following is displayed:
As the download portal states that this EBF has been released last week, I'm uncertain why its contents is not displayed.
(I'd prefer to simply check on http://sqlasupport.sap.com/readme/sqla1201.html but that's still on 220.127.116.1124, so even older than the last three released EBFs for Windows...)
It should be released now.
answered 23 Jun '15, 13:08