PSP firmware 6.37 is out!
Update 2: Itís been confirmed that the sukkiri exploit, and most likely the Kernel exploit used in the Hen have been patched. Itís also been confirmed that we can still run signed homebrews on 6.37.
Update 1: firmware 6.37 is now available and can be found here. Do not upgrade until further notice, if you still want to use homebrews!
Sonyís Eric Lempel announced today the upcoming firmware 6.37 for the PSP. This update will ďimprove system software stability during use of some featuresĒ, a.k.a. patch the Kernel exploit used in the Hen, and probably the sukkiri exploit too. (how about the recent signing stuff?)
If you use your psp for homebrews, I donít recommend to upgrade your system until more information is available.
I would suggest you don't update! Even though homebrew can be signed, the HEN exploits were probably patched.