With the new Android M operating system already in the works, it is expected that some Android devices will prefer to bypass the recent 5.1.1 Lollipop version and go straight to Android M. Such is the case with the HTC One M8 and most of the M9 smartphones.

HTC One M9, being the most recent HTC smartphone and the current mobile phone flag bearer of the Taiwanese brand, has earlier been confirmed for the Android M update set to be rolled out later in the year.

HTC One M8 users can also rest their fears as the old model will also be getting the update, says HTC's Product Management senior vice president, Mo Versi. This is in line with the age-old tradition of 2-year-old phones still eligible for Android OS updates.

Android's HTC One M8, though, have not yet received the recent Lollipop version, 5.1.1. And Yibada speculates that it never will as it might go straight from Lollipop 5.0 to Android M. Some M9 might also have the same fate, with the exception of those released by AT&T, T-Mobile, and Verizon.

AT&T-issued HTC One M9s have started getting the latest Android version over the weekend, while those released by T-Mobile and Verizon started getting the update Monday, July 20.

Android M, which was first unveiled in late May, is expected for release before 2015 ends. It is in Developer Preview stage, with the second build, MPZ44Q, currently out to developers.

As with major Android updates, M promises additional features and some minor improvements to the mobile operating system. Some rumors about the new features include a fingerprint recognition software and support for the latest USB Type-C.

No word yet as to when it will reach the HTC One M8 and M9 but Yibada says it will most likely be 90 days after the official Android M release.

More updates to be posted as soon as they are available.