Currently, only smartphones and tablets of the Nexus series by Google receive the Android 4.3 update, which was presented on Wednesday this week, along with the second generation of the Nexus 7.
Although manufacturers (OEMs) such like Sony, HTC, Samsung, Huawei, and OPPO have published some information regarding the possible updates for their smartphones and tablet pcs to Android 4.3, but also the new version CyanogenMod 10.2 could provide the update to Android 4.3 and this certainly faster for several official supported Android devices than the manufacturers of these smartphones with Android.
As the developers behind the alternative Custom ROM for several Android smartphones and some tablets have published in this week, they are currently already in a phase of development in which the source code of Android 4.3 from the Android Open Source Project (AOSP) is integrated in the source of their CyanogenMod-ROM and this will raise the CyanogenMod-ROM version to CM10.2 when the versions of the often used Custom-ROM for many Android smartphones will be released by the team behind the useful and interesting CyanogenMod-ROM.
All the features of CyanogenMod that do not require new modifications by the CyanogenMod to be integrated in the upcoming CM10.2 version based on the new version 4.3 of the mobile operating system Android OS by Google are already a part of the new project to raise the base of the alternative AOSP-ROM for many Android smartphones and some tablet pcs to Android 4.3. Currently, the Samsung Galaxy Nexus (Verizon), Samsung Galaxy S4 (T-Mobile), Samsung Galaxy S II (G), and Galaxy S III belong to the bootable devices.
Further, also the LG Nexus 4 (of course), the Sony Xperia Z, and the Asus Transformer Pad Infinity are also among the already bootable devices and an experimental build of CyanogenMod 10.2 with Android 4.3 has been already released in the forums of the xda developers for the Samsung Galaxy S3.
However, the team behind the often used CyanogenMod AOSP-ROM (firmware) for Android devices needs more time for the release of the first public downloads of CyanogenMod 10.1 with Android 4.3 – the so-called nightly builds. The team needs more time for the development and this is certainly to understand. Their new blog posts says, however, that everybody can compile their own builds of CM10.2 with Android 4.3 already, but the developers warn of possible failures afterwards or while the compilation of CyanogenMod 10.2 with Android 4.3 in its current state.

The development by the team behind the CyanogenMod is based on the SoC (processor) of the Android devices. The sequence of the development is: Nexus, Qualcomm, OMAP, Tegra 3, and finally Exynos. Devices with SoCs (processors) from nVidia or Samsung will thus receive the update to CyanogenMod 10.2 and Android 4.3 later than devices with a Qualcomm SoC (e.g. Snapdragon) or a chip from OMAP.
CyanogenMod is based on the source code of Android and its user interface. This alternative ROM for many Android devices offers numerous additional functions and options for the user. Like the Nexus devices from Google, the CyanogenMod ROM is free of such OEM frameworks such as Samsung’s TouchWiz or HTC Sense. The stable version of CyanogenMod 10.1 based on Android 4.2 and it currently supports 95 different devices. Overall, the project has nearly 6.4 million installations on official supported and unofficial supported devices.
cheers form Israel