Sharepoint 2010 Service Pack 1 (SP1) and June 2011 CU released

Here is the download links.

Service Pack 1 for Microsoft Sharepoint Server 2010 (KB2460045)
http://www.microsoft.com/download/en/confirmation.aspx?id=26623

Service Pack 1 for SharePoint Foundation 2010 (KB2460058)
http://www.microsoft.com/download/en/details.aspx?displaylang=en&id=26640

SharePoint Foundation 2010 Language Pack SP1
http://support.microsoft.com/kb/2460059

Sharepoint Designer 2010 SP1
http://support.microsoft.com/kb/2460057

List of all SharePoint 2010 and Office Server 2010 SP1 packages
http://support.microsoft.com/kb/2510766

For SharePoint customers planning to deploy Service Pack 1, it is also recommended to install the June 2011 Cumulative Update for SharePoint.

SharePoint Server 2010 cumulative update package (SharePoint server-package): June 28, 2011
http://support.microsoft.com/kb/2536599

SharePoint Foundation 2010 cumulative update package (SharePoint Foundation server-package): June 28, 2011
http://support.microsoft.com/default.aspx?scid=kb;EN-US;2536601

Service Pack 1 does not contain June 2011 CU fixes means if you would like to install last CU you should better first install SP1 than patched with June 2011 CU  . And also sp1 is not mandatory thats mean you can able to install only June 2011 CU but Microsoft recommend to install sp1 . Sp1 contains new feature packs if you dont install it you could not able to use new features.

!!! UPDATE 12.07.2011
June 2011 CU for SharePoint 2010 has been re-released
Because of some side effects of June 2011 has been re-released.

Issue 1
If you install the earlier build of this hotfix package on a SharePoint server that has .NET 4.0 installed, you cannot synchronize user profiles from AD and LDAP into the SharePoint User Profile Service application database. The user profile synchronization export process fails. Additionally, the System.PlatformNotSupportedException exception shows in Event Viewer.

Issue 2
After you install the earlier build of this hotfix package, the following services may fail at either runtime or the provision process if you run these services by using a user account other than the farm administrator account:

• Session State Service
• Secure Store Service
• Business Data Connectivity (BDC) Service

The rereleased CU has build 14.0.6106.5002. The KB articles have been updated and the binaries on our hotfix server have been replaced with the updated version.

Source article:
http://blogs.technet.com/b/stefan_gossner/archive/2011/07/12/june-2011-cu-for-sharepoint-2010-has-been-re-released.aspx
!!!

Important for all Server Applications listed above:
After applying the preceding updates, run the SharePoint Products and Technologies Configuration Wizard or “psconfig –cmd upgrade –inplace b2b -wait” in command line. This needs to be done on all servers in the farm with SharePoint installed. You can run psconfig in parallel on all SharePoint machines.

The recommended order of installation is as follows:

Update Foundation first:
SharePoint Foundation 2010 Service Pack 1
Service Pack 1 for SharePoint Foundation 2010 Language Pack
June 2011 CU for SharePoint Foundation 2010

Then SharePoint Server:
SharePoint Server 2010 Service Pack 1
Service Pack 1 for Server Language Pack 2010
June 2011 CU for SharePoint Server 2010

Frequently Asked
Questions

Q: Can I install Service Pack 1 on RTM builds of
SharePoint 2010 Products?

A: Yes,
Service Pack 1 can be installed directly on RTM builds; however, we suggest you
install Service Pack 1 then apply the June 2011 Cumulative Update.

Q: Do I need to run psconfig after the install
of every package?

A: No, apply all of the available packages then
run psconfig – the database will only be updated once, to the newest version.

Q: Do I need to run psconfig on every machine in
the farm?

A: Yes. Although database is already updated,
the binaries on each server need to be set and permissioned using psconfig.

Q: Will there be a slipstream build including
Service Pack 1 available for download?

A: At this time a slipstream build including
Service Pack 1 is not available.

Have a nice patching…