Anyway, since the start of summer to today:
The scene (mainly MarcusD) figured out how to correctly control the leds in homebrew code
On N3DS, objectively figuring out tn/ips via software (SciresM)
On N3DS, installing A9LH without otp dump, so without 2.1
How to patch a rom to disable the dark and/or blurry effects in GBA virtualization mode has been found out
Ctrnand transfer, an alternative to downgrading with cias, that requires arm9 access but is extremely reliable
11.1 was released
Luma further advanced a lot, becoming the first cfw able of launching (with kernel write protection patch) 3.x and under
A minor cfw, Freeway, was released as the successor of Pasta for updating old versions to 9.2, but this main purpose was obsoleted by ctrnand transfer
Decrypt9 includes a cart dumper (to 3ds or cia), ctrnand transfer, an easier alternative to agbsave9, an automatic 3ds to cia converter
SD card and DSi speed can be accessed in DS mode, thus making Nitrohax (homebrew action replay clone) and other apps a reality without flashcards
Menuhax and browserhax for 10.6-11.0
Literally everyone can register an official developer account, therefore many previously undumped sdk apps, now are