Pulldownit , the destruction plugin, is already available for 3d Max 2019, this update includes also a number of bug fixes you can read in the Pulldownit version logs pages,
Visit Pulldownit version logs
The major additions to 3d Max 2019 are support and editing tools for OSL shaders, a new procedural wood material and booleans operation fro splines similar to those for 3D shapes, this may look like not enough to justify a major version but the new policy of Autodesk is to include new features regularly in software updates, they dit it in Max 2018 with paramount additions like Max fluids , VR support, new spline tools and important Arnold render updates, so there will be probably interesting features to come in futher updates of Max 2019.
Booleans operation for splines is an useful addition as it is faster and safer to modify a spline with booleans and then extrude it than applying booleans directly to 3d shapes which many times fails to do it correctly.
The new procedural wood material is nice, has quite a lot of controls to adjust the wooden look, like colour, roughness, number of wood rings and shape of the ribbon stripes, but I miss controls to add grime and scratches, just my suggestion for future updates, currently you can get a nice polished wooden look but not an old spoil wood material.
OSL shaders are also worth to check, they are well integrated in the Slate materials editor and the possibilities to create procedural shaders are endless.
Important to mention OSL shaders and procedural wood material are supported by Arnold render and also by Pulldownit plugin so you can shatter objects with these procedural shaders applied perfectly.
Changsoo Eun, 3d artist, has written an interesting overview of OSL shaders in 3d Max 2019 you can read here,
read Changsoo OSL shaders review
And In this video, Zap Andersson from the 3ds Max rendering team explains clearly how to use the new Advanced Wood material.