The Galaxy S6 is the Android phone to beat so far in 2015. That being the case, it's naturally going to be a big part of the modding scene from here on out, as have most of its predecessors. Right on time, Team Win has delivered their much-loved custom Android recovery to Samsung's new flagship. You can download it here.
This particular build of TWRP was tested on the T-Mobile version of the Galaxy S6. It will probably work on other carrier variants and the international version (with the obvious exception of the bootloader-locked phones on AT&T and Verizon), but it might be wise to track down a copy of the default recovery before flashing TWRP to your phone. The software on the Galaxy S6 and S6 Edge is very similar - it's also possible (but not guaranteed) that it will work for Samsung's alternate flagship as well.
A stable, official build of TWRP will allow for easy software backups and restorations, not to mention flashing ZIP files. When the first custom ROMs become available - and owners certainly won't have to wait very long - they should be easy enough to apply. Of course, with the new Samsung Exynos chipsets across all variants of the Galaxy S6 and S6 Edge, it may take a while for AOSP builds and custom kernels to be ready for daily use.
Attention shoppers: will the customer with the Sprint Galaxy S6 please come to the customer service desk? Your Team Win Recovery Project build is ready.
- Team Win Recovery Project