Is available, if you use the Communications Center in your Revit 2014 product.

Direct Download for Revit 2014 Update Release 1:
http://updatesdl.autodesk.com/updates/files/rvt2014ur11.exe

Readme

The Live Updater from in-program uses mshta.exe to download and execute the file.

On Windows 7 64 bit, you might be able to prompt the download page by opening:
file:///C:/Program%20Files/Autodesk/Revit%202014/WebServices/WSLiveUpdate.htm

Also, after using Comm Center, you will find a HTA in this folder that you can run:
C:UsersUSERNAMEAppDataLocalAutodesk, IncAutodesk Revit20130308_1515(x64)

Heads-up via tweet from Steve Stafford:

Forum:

Just in case you missed it, Update Release 3 is available for all 4 Revit flavours (links below).

Key fixes (as per documentation):

  • Improves stability when using Hardware Acceleration, Graphics Mode.   
  • Improves stability when opening projects which utilize Extensible Storage.
  • Improves visual fidelity between canvas and printed output.   
  • Improves visual fidelity of hidden lines, MEP pipe centerlines and haloed gaps when not using Hardware Acceleration, Graphics Mode.   
  • Improves Structural family data integrity during upgrade of project.
  • Improves data integrity when canceling Save As operation.
  • Improves interaction between Revit Server 2013 and Riverbed compression.
  • Enables users to browse Revit Server Networks when a bound workstation cannot contact the Domain Controller.  

 Dave Baldacchino informs us that this update includes the Hotfix that fixes some nasty non-WYSIWYG bugs (when printing in vector):
Anyway, I also checked that the recent Update 3 (for OneBox)incorporates this hotfix as well, so just skip it altogether and install Update 3 as fast as you can. There are separate downloads for the stand-alone packages.
via
http://do-u-revit.blogspot.com.au/2013/06/what-you-see-is-not-what-you-get.html

Link for RVT (Onebox):
http://usa.autodesk.com/adsk/servlet/ps/dl/item?siteID=123112&id=21891257&linkID=21208796

Link for RAC:
http://usa.autodesk.com/adsk/servlet/ps/dl/item?siteID=123112&id=21890399&linkID=9273944

Link for MEP:
http://usa.autodesk.com/adsk/servlet/ps/dl/item?siteID=123112&id=21891036&linkID=21208796

Link for RST:
http://usa.autodesk.com/adsk/servlet/ps/dl/item?siteID=123112&id=21890545&linkID=21208796

I guess the fact that we are receiving a significant update to 2013 after getting 2014 will be a further warning to some users to delay the 2014 rollout…

EDIT: Updated Links

Note – the Enhancements List shows a lot of improvements to stability, so this Update comes highly recommended.

Revit OneBox / RVT (for Suites) Update 2

Revit 2013 UR2 (32-bit) (exe – 59699Kb)
Revit 2013 UR2 (64-bit) (exe – 83079Kb)
Readme (select language version):

English (htm – 32Kb)

Enhancements Documentation (select language version):

English (pdf – 206Kb)

via
Autodesk – Design & Creation Suites Support – Revit 2013 Update Release 2

Revit Architecture 2013 Update 2

Revit Architecture 2013 UR2 (32-bit) (exe – 59699Kb)
Revit Architecture 2013 UR2 (64-bit) (exe – 83079Kb)
Readme (select language version):

English (htm – 32Kb)

Enhancements Documentation (select language version):

English (pdf – 202Kb)

via
Autodesk – Autodesk Revit Architecture Services & Support – Revit Architecture 2013 Update Release 2

Revit Structure 2013 Update 2

Revit Structure 2013 UR2 (32-bit) (exe – 59699Kb)
Revit Structure 2013 UR2 (64-bit) (exe – 83079Kb)
Readme (select language version):

English (htm – 34Kb)

Enhancements Documentation (select language version):

English (pdf – 203Kb)

via
Autodesk – Design & Creation Suites Support – Revit Structure 2013 Update Release 2

Revit MEP 2013 Update 2

Revit MEP 2013 UR2 (32-bit) (exe – 59699Kb)
Revit MEP 2013 UR2 (64-bit) (exe – 83079Kb)
Readme (select language version):

English (htm – 32Kb)

Enhancements Documentation (select language version):

English (pdf – 203Kb)

via
Autodesk – Autodesk Revit MEP Services & Support – Revit MEP 2013 Update Release 2

Older post:
It doesn’t seem to be ‘official’ yet, but the Update 2 download links are live at:

Revit Architecture 2013 Update 2
http://updatesdl.autodesk.com/updates/files/rac2013ur2.exe

Revit Structure 2013 Update 2
http://updatesdl.autodesk.com/updates/files/rst2013ur2.exe

Revit MEP 2013 Update 2
http://updatesdl.autodesk.com/updates/files/rme2013ur2.exe

Revit OneBox / RVT (for Suites) Update 2
http://updatesdl.autodesk.com/updates/files/rvt2013ur2.exe

For Revit OneBox (Building Design Suite version), the link should also eventually appear at:
http://usa.autodesk.com/adsk/servlet/ps/dl/index?siteID=123112&id=2334435&linkID=16831210#section21
when it is available (I will also update this post when there is an official suite version Update 2 link)

Heads-up via:
Revit OpEd: Watch for Web Update 2