When will my device get the Android 4.1 update (Jelly Bean)? Android 4.1 (Jelly Bean) was announced at Google I|O 2012 on June 27, 2012.

(You can review the high level changes in Android 4.1 at the official Android Developer's site.)

Of course, not all devices will get this update right away and others won't get it at all. Each manufacturer and carrier often choose to add their custom modifications which tend to delay the official release.

When will each device get Android 4.1, either officially or unofficially, if ever?

See also:


When will my device get the Android 4.0 update (Ice Cream Sandwich)?
When will my device get the Android 4.2 update (Jelly Bean)?
When will my device get the Android 5.0 update (Lollipop)?
This community wiki will list all of the known and rumored dates for devices. If you have an update make sure to follow the format that's been established, and the following guidelines:

Keep phones in alphabetical order listing the manufacturer and model
Specify if the date is confirmed or rumored and link to the source
If there is an unofficial release, link to the site where it can be downloaded

Note that devices that do not meet Google's Compatibility Definition will not receive a Google-sanctioned update. In the case of the major manufacturers and many others, that means they won't release an update at all since Google's certification is important to their business.
Phones
Asus
Padfone

Official: 2013-03-25 (confirmed)

Google
Nexus S

Official: mid-July (confirmed)

HTC
Desire C

Official: Never (confirmed)

One S

Official: unknown date (confirmed)

One V

Official: Never (confirmed)

One VX

AT&amp;T: 2013-08-02 (announced)

One X

Official: 2013-03-07 (confirmed)

One XL

Official: unknown date (confirmed)

LG
Optimux 4X HD (P880)

Official: 2013-04-07 MyLGPhones.Com

Optimus G

Sprint: 2013-March (confirmed)

Micromax
A110 Canvas 2

Official: 2013-March (confirmed)

Motorola
DROID 4

Released to Verizon customers March 19, 2013 (confirmed)

DROID BIONIC

Official: 2013-04-16 (confirmed)

DROID RAZR

Official: 2012-03-07 (confirmed)

DROID RAZR HD

Official: 2012-12 (confirmed)

DROID RAZR MAXX

Official: 2012-03-07 (confirmed)

RAZR MAXX HD

Official: 2012-12 (confirmed)

Pantech
Discover

Official: 2013-07-31 (confirmed)

Samsung
Epic 4G Touch

Official (via Samsung Kies): 2013-03-28 (confirmed)

Galaxy Ace 2

available: 2013-05-15 (SamMobile)

Galaxy Nexus

HSPA+

yakju, takju

Official: 10-July-2012 (officially confirmed)
Unofficial: 28-June-2012 RootzWiki, XDA


yakjuxw, yakjukr etc...

Official: Unknown
Unofficial: 30-June-2012 XDA




CDMA

Sprint:

Official: 2012-09-06 (confirmed)
Unofficial: 2012-06-28 ACSyndicate


Verizon Wireless:

Official: 2012-09-21 (confirmed)
Unofficial: 28-June-2012 RootzWiki (ROM 1, ROM 2)





Galaxy Note N7000

Official: Unknown date
Unofficial: 2012-08-10

Galaxy S II

Official (Sweden, Norway and Denmark): November 2012 (facebook post via GSMArena)

Galaxy S III

Official (Verizon Wireless) 15-Dec-2012 (confirmed)
&quot;Confirmed&quot; 29-August-2012 (international models specifically)
Official (Sweden, Norway and Denmark): October 2012 (facebook post via GSMArena)
Official (Bell, Rogers, Sasktel, Telus, and associated brands in Canada): December 3, 2012 (twitter post)
Official (Mobilicity, Vidéotron and Wind Mobile in Canada) - December 14, 2012 (twitter post)

Galaxy Stellar

Official: March 2, 2013 (source)

Sony
2011 line up (Xperia Arc S, Ray, Mini (pro), Neo (V), ...)

Declined by Sony UK for the top model Arc S (source)

Xperia T, TX, V

Official:Feb-March 2013 (confirmed)

Xperia P, J, Go)

Official: End of March 2013 (confirmed)

Xperia S, SL, ion, acro S

Official:After March 2013 (confirmed)

Xperia U, Miro, Tipo, Sola

Official: Declined (source)

Xperia TL

Official: 1-Mar-2013 (confirmed)

Tablets
Acer
Iconia Tab A500

Unofficial: 30-Jun-2012 (confirmed)

ASUS
Transformer TF101 + SL101

Official: unknown date (confirmed)

Transformer TF201 + TF300T + TF700T

Official, unknown date (source)  (source, English)

Transformer Pad TF300

Official: 18-August-2012 (confirmed)

Lenovo
Thinkpad Tablet

Official: Never (staff post)

Motorola
Xoom

Official (Wi-Fi variant): 23-July-2012 (confirmed)
Official (3G/LTE variant): Q4 2012 (Motorola blog post)