The AT&T HTC One is finally getting the latest Android 4.3 Jelly Bean as promised, as the update is rolling out now to users.

HTC may not have kept its initial promise of rolling out Android 4.3 by the end of September, but the update is welcome nonetheless.

HTC One owners on Sprint already got their much-awaited software update last week, and on Friday, Oct. 4, HTC President Jason Mackenzie gave an "early next week" timeframe for the AT&T Android 4.3 update for the HTC One.

Just a few days later on Tuesday, Oct. 8, Mackenzie has tweeted that the update is rolling out as promised for HTC One owners on AT&T.

"AT&T 4.3 update has officially begun to push. You should see it thru the AT&T sw update," announced Mackenzie.

The update weighs in at 565.7MB and sports the build number 3.17.502.3. It is expected to be the same as what the Sprint update brought, which means not only the tasty Android 4.3 Jelly Bean goodies such as OpenGL ES 3.0 and an improved Daydream, but a number of interface enhancements to the HTC Sense 5 as well.

As usual with software updates, the Android 4.3 Jelly Bean update for the AT&T HTC One is rolling out gradually, which means that it might take a few days to reach all users. If you haven't received the update notification yet, you can always try to check for an update manually. To do so, access Settings > About Phone > Software update.

T-Mobile should be the next one to roll out the Android 4.3 update to its HTC One customers, while Verizon, as expected, will be the last of the major carriers to roll out the update toward the end of the month.

The latest Android 4.3 Jelly Bean should make the HTC One even more attractive to smartphone shoppers, as the handset is already very popular due to its high-end specs and stylish aluminum unibody design. The slightly outdated Android version was one of the few drawbacks that caused some users to hold off their purchase, but after this month that will no longer be an issue.