Back around the time of IFA there were a number of big announcements. Most notably Samsung and Motorola stole the show that week. However, Sony were one worth noting with the unveiling and release of their new flagship device the Sony Xperia Z3 (and Compact). The Z3 is an excellent device. It comes with 5.2" 1080p display, along with 3GB RAM, 2.5 GHz Qualcomm Snapdragon 801 processor and is camera-strong featuring a 20.7 MP rear camera. It's also worth noting the Z3 offers a 3,100 mAh battery which in recent tests smashed the competition in terms of battery life. Not to mention it's waterproof.
Now for all you techies out there it seems there is another reason to buy the Z3. The clever folks over at XDA have managed to port an unofficial version of TeamWin Recovery Project (aka TWRP) and a modified kernel for the Z3. With these two bad boys you can now root and install the custom recovery on the Z3 giving you all the benefits of rooting. Now there are a few notes to keep in mind. Firstly, no-one will ever accept responsibility for rooting. Sites like XDA (and us) provide you with the information, but it is you who is doing the rooting. If you are familiar with rooting than you will know the typical problems i.e. soft and hard bricking, boot-looping and yadda yadda. So be prepared if you plan to root - know the potential issues and of course backup. That said it is also worth noting that at present both the modified kernels and ported twrp are only compatible with the D6653 and D6603 models of the Z3. By compatible this does not mean it won't work with other variants but has only been tried and tested on these models. If you are an expert rooter and know how to recover from bricking or looping then of course it's up to you if you want to experiment with your BRAND NEW device. For everyone else, just wait. These guys work fast and before you know it the list of tested and compatible devices will increase greatly.
OK, so you have a D6653 and D6603 model of the Z3 and want to root? Great! You can head over to the developers thread for the full rooting details, downloads and instructions. Note, you do need to have already unlocked your bootloader and it's probably wise to have a stock kernel image just in case of problems. Following this, download the latest SuperSU, download and fastboot flash the recovery image, reboot into your new custom recovery and lastly flash SuperSU for the root privileges. Happy flashing Z3 (D6653 and D6603) owners.