Ok, since AWS did not yet release the support for MAX 2026 in deadline, here is a non offical and partial release for 3dsMAX 2026.
=>3dsMAX CMD (Backburner mode), will be fully supported.
=>3dsMAX (non CMD, SMTD), is partially support → missing the lightening pluggin, so it will not work until AWS release it.
Deadline-3dsMAXCMD 2026.zip (351.6 KB)
It is sooo annoying, that it is the same with every new release of 3dsmax. I mean, it doesnt happen out of the blue, that a new version comes out. Why are other developers are able to release there plugins in time.
Since Thinkbox is part of AWS, it is a pain. Thinkbox was such a great company in the good old days…
Really a big thank to all the community people who are contributing their time to find a solution for deadline so it works on each new 3dsmax version 
You could ask for the lightening pluggin support here: 3dsMax 2026 support
I’m just a Deadline user, trying to give an option for other Deadline User :)…
I know and I am soo thankful for people like you !!!