Shawn Olson has released all of his Wall Worm plugins for Max 2019. The scripted plugins have all been tested and work with Max 2019, and the following plugins have been recompiled:
- Wall Worm Pro
- PFM Bitmap I/O
- Select Faces Modifier
- Delete Faces Modifier
- ChannelMod

Changes for v3.1.1 beta are:
- Adds support for Max 2019
- Adds support for Arnold renderer
- Fixes Z-Offset being applied twice for segments with Bend off in Point-cloud mode
- Fixes a bug computing Corner on first vertex of closed splines
- Fixes resizing Note nodes when Style Editor is zoomed
- Fixes 'Simple Y Offset mode' with collinear vertices
- Fixes a bug using 'Extend X/Z Size to Area' and 'X->XY' mode with splines coplanar to XY

RailClone Pro is available for Max 2012 to 2019 and costs €200. A demo version is available here.

Changes for v1.072 are:
- Fixes a problem with rendering in Corona if stopped objects disappear

MultiScatter is available for Max 2010 to 2018 and costs €200.

Changes for v6.0.3 beta are:
- Adds support for Max 2019
- Adds support for Arnold
- Fixes Distribution by Path generating the same distribution for each sub-spline
- Fixes Display->Viewport Mode overriding the Render Mode on V-Ray IPR

Forest Pack Pro is available for Max 2012 to 2019 and costs €200. A demo version is available here.

Changes for v5.2.9.14704 are:
- Adds support for Max 2019
- Dynamics can now be simulated on strands with multiple strand groups
- Texture map channels now work on Frizz, Curl, and Gravity modifiers

Ornatrix is available for Max 2012 to 2019 and costs $499. A demo version is available here.

I have recompiled a load of plugins for Max 2019. If anything doesn't work as expected, let me know and I'll see if I can fix it.

John Burnett
- BindPoints v1.27.2018
- ForceViewer v1.27.2018
- InfoTexture v1.27.2018
- NullHelper v1.27.2018
- UVW to RGB v1.27.2018
- Warp Texture v1.27.2018

Jonathan Garcia
- Delete Visibility Track v1.0
- Endian v1.0
- Get Bitmap Info v1.0

Kees Rijnen
- Delete Protection v1.0
- Helium v1.24

Chris Johnson / David Baker
- CoolPicker v2.3.3

BlurBeta
- BlurBeta plugins pack for Max 2019

Andrew Reid
- EdgeMap v1.01
- ZDeSat v1.01
- ZTint v1.04

J. Antonio Amblés
- LightMesh v0.9

Daniel Santana
- AdvanceNoise Material v1.2.9

Lesha VH
- Color Picker v2.01

Pier Janssen
- EdgeSmooth v1.0.2

Martin Enthed / Creative Tools AB
- Ego v1.14

Mike Biddlecombe
- HiddenDOSCommand v1.0

Sisyphus Software
- Grass-O-Matic v1.2
- Special Purpose Particles v1.4

Andrei Zmievski
- Area v1.0

Martin Ridgers
- 3 Point Rectangle v1.0

Last Pixel Pty Ltd.
- Autogamma v1.0

Mark Williams
- Color Replace v1.11
- Disperse/Refract v1.01
- Graph v0.91
- Mosaic v1.01
- Pen v1.11
- Scratch v1.21

kotenpa
- G-Line v0.51
- Transparent_ID v2.0

Neil Hazzard / Adam Felt
- Interface:PhysiqueOps v3.0

Autodesk, Inc.
- Physique2Skin Utility v1.0

HABWare
- 3:2 Pulldown v9.0
- Billboard v9.1
- Carrera v9.1
- ColorTab v9.0
- Exclude v9.0
- HMesher v9.1
- HSpline v9.1
- IBitmap v9.0
- Interlace v9.0
- Moebius v9.0
- Patchwork v9.0
- Particle Texture v9.0
- Roller v9.1
- SGI Logo v9.0
- SnapShot v9.0
- Sticks v9.0
- ToyTrain v9.0
- Water2 v9.0
- Panorama v9.1
- Terrain2 v9.0

David Baker
- Motion2 v1.0
- RGB Matte v1.0
- Lighten v1.0
- WireColor v1.0

- SolidColor2 v1.3

Mankua
- PowerStamper v1.0
- Stress v1.0
- UVW Frame v1.0

Felix Joleanes
- Animatable Pivot v1.0.6
- IKFK Solver v1.1.5b

Big thanks as always go to Larry Minton for helping me out whenever I had a problem!

There are still all of the Peter Watje plugins to do, I'll try and get them done soon.

Changes for v5.0 include:
- FumeFX GPU accelerated display has been integrated within the Max (2016+) viewport
- The Data preview has been changed and allows user to choose voxel display size
- New FumeFX toolbar provides access to FumeFX and source creation as well as simulation control
- The new advection type lets you easily create fluid flows that minimize numerical losses
- Simulation core redesign allows usage of complex geometry instead of using proxies
- Smooth retiming regardless of simulation sub-steps and retiming scale factor
- Depending on scene setup, the latest version of FumeFX delivers up to 20% faster simulations
- Adds the ability to retime simulation during the Wavelet Turbulence pass
- Vorticity II optimizations include faster calculations and lower memory requirements
- Improves simulation scaling
- New lossy .fxd compression for per-channel compression quality
- You can now mix lossless and lossy channels inside the same cache file
- State of the art multithreaded .fxd I/O for ultra fast cache saving and loading
- Load caches at user-defined reduced resolution for easier manipulation and rendering setup
- Minimizing the grid during cache saving produces smaller files that save and render faster
- Write OpenVDB caches in a form that makes them easily readable for Arnold, Redshift and Houdini
- Various OpenVDB cache optimizations and fixes
- Gridless Advection lets you use exported velocities or 3D textures to create additional detail
- Adds direct rendering support for Corona renderer
- Workstation licenses are now more affordable
- New rental options available (1 year or 3 month terms)

FumeFX is available for Max 2014 to 2018 and costs $695.

Changes for v3.1 are:
- Adds Perpendicular to 2 points Object snap

Polyline Pro is available for Max 2010 to 2018 and costs €25.

Spline Data is a commercial MAXScript for getting realtime information about the spline curves in your Max scene. It shows a lot of helpful data on a simple rollout floater which can be placed anywhere on your screen. It will instantly inform you about the number of shapes, curves, segments, vertices, etc. in your scene or selection. The tool is ideal for users who often work with a great amount of curves, such as architects, graphic designers, engineers, CG animators and motion graphers.

Spline Data is available for Max 2012 to 2018 and costs $4.

Changes for v2.2 are:
- Adds support for edited normals and smoothing groups
- Vertex colors can now be used instead of textures, saving bandwidth
- Adds support for transparency to the standard and physical materials
- Adds support for shadows
- Ambient occlusion textures are now available for PBR materials
- Fixes an export script crash for texture files missing from a physical material
- The Facebook-ready GLB format now has a shortcut export option in the menu bar
- GLB files are now displayed and can be opened in the App Manager
- Adds a workaround for a Max Python bug which crashed the export script in older versions of Max
- Verge3D for 3ds Max is now distributed within an installer
- Adds a 'when hovered' puzzle which extends web page-like experience to the realm of 3D
- The web app preloader can now be customized
- Adds a progress bar when exporting or sneak peeking your scenes in Max
- Fixes the blinking canvas issue which occurred when tapping the screen on iOS devices
- Fixes a rotation issue for parented hierarchies
- Fixes the behavior of the animation offset option assigned for objects
- The animation loop mode option has been fixed

Verge3D is available for Max 2015 to 2018 and costs $290. A demo version is available here.

Changes for v1.4.5 are:
- New 'Folder Selection' mode for marking multiple folders to change their color, hide or star them
- Adds a simple Folders loader to show when a directory is still being loaded
- You can now switch back and forth through folders using the mouse Back/Forward buttons
- You can now search in EXIF image data to find images by the information saved in their files
- Adds some smart contextual tooltips to get you familiar with Connecter's basics faster
- A number of bug fixes and improvements

Changes for v1.70 are:
- The 'Change spline direction CW/CCW' tools now work properly on straight lines
- Fixes an issue with the 'Explode to splines' function

Spline Cleaner is available for Max 2012 to 2018 and costs $30.

Changes for v6.0.2 beta are:
- Adds support for V-Ray Next beta 2
- Adds 'Select all Forest dependencies' to the quad menu
- Fixes a crash rendering nested FP objects with no material assigned
- Fixes a potential crash with animation maps returning negative values
- Fixes a freezing issue with nested objects and V-Ray IPR
- Fixes a bug in Effects expressions with functions returning vectors
- Fixes a freezing issue with V-Ray RT in IPR mode
- Fixes FP objects excluding areas not updating correctly in some renderers
- Fixes some parameters not updating in the interface when animated using Autokey
- Fixes a rare crash when Forest object is created

Forest Pack Pro is available for Max 2010 to 2018 and costs €200. A demo version is available here.

Changes for v2.5.62 are:
- Fixes a Max issue that could affect the performance of geometry translation
- Adds a new Houdini option to normalize normal maps affected by a transformation at SOP level
- Fixes a bug that could cause a crash when using custom AOV shaders
- Removes a recently introduced benign proxy shader parameter warning
- Fixes a bug that could cause corruption or missing reflection/refraction on some puzzle-mattes

Redshift is available for Max 2013 to 2018 and costs $500. A demo version is available here.

This MCG modifier allows you to generate multiple camera projected UV's with independant resolution per camera. It is essentially an MCG version of the CameraMapGemini plugin.

Changes for v3.0 are:
- Adds a new Edit Mode for fast editing of splines using all of the Polyline Pro features

Polyline Pro is available for Max 2010 to 2011 and Max 2013 to 2018 and costs €25.

Changes for v0.90 beta are:
- Adds a new Collect / Copy Assets dialog
- Fixes the stability of multi-threaded Auto-Relink
- Adds a Pause option to Auto-Relink
- Fixes the save last browse folder and history list
- Adds new 'Total size of selected assets' to the Status bar
- Fixes the progress window

Library Track and Relink is available for Max 2010 to 2018 and costs $9. A demo version is available here.

Changes for v1.0.4 are:
- Installation steps have been simplified
- Adds support for Spline Shapes
- Adds support for nested Multi/Sub-Object materials
- Adds support for IES lights
- Adds support for anisotropic BRDF/BTDF
- Adds support for vector displacement
- Adds a new calculation mode for Universal Photon-Mapping
- Improves ray-tracing performance
- Fixes light sampling bugs
- Fixes an interactive rendering bug
- Updates documentation

Changes for Beta 1.08 are:
- Adds a new Blender addon to export Cycles shaders for use in Max
- Adds a new Cycles Properties modifier to hold object-level paramaters
- Objects can now be set as shadow catchers through the Cycles Properties modifier
- Adds new shader-level parameters to control volume sampling
- Adds a new render parameter to control the number of deform motion blur samples
- CUDA compute capability 3.7 is now supported (Tesla K80)
- Adds a 32-slot shader graph material
- Adds Alpha output to the 3ds Max Texmap node
- Adds Displacement input to the Material Output node
- The curve editor now supports click and drag to move points
- Adds a number of new nodes
- Shader-level parameters can now be applied to Shader Graph materials
- Makes several small optimizations to the Physical Material shader
- Fixes some cases where a shader graph material could reset to the default (empty) graph
- Fixes a potential crash when using invalid texmap indices in a shader graph

Changes for v1.070 are:
- Adds support for V-Ray Next (4.x) beta 2
- Fixes some problems with regular distribution

MultiScatter is available for Max 2010 to 2018 and costs €200.

Changes for v3.2 are:
- Adds support for CoronaHairMtl
- Adds support for CoronaSkinMtl
- Adds support for CoronaBumpConverter
- Adds support for CoronaDistance
- Adds support for VRayHairMtl (basic)
- Adds support for VrayBumpMtl (simple)
- Adds support for VRayBmpFilter (basic)
- Adds support for VRayBump2Normal (basic)
- Adds support for VRayMultiSubTex (basic)
- Adds support for VRayLut (basic)
- Adds support for VRayUserColor (simple)
- Adds support for VRayUserScalar (simple)
- Adds support for VRayFakeFresnelTex (simple)
- Adds support for VRayHairInfoTex (simple)
- Fixes a VRayColor2Bump conversion issue
- Fixes support for VrayNormalMap for V-Ray 3.3 and older
- Improves support for CoronaNormal
- Improves conversion to Standard material
- The licensing system has been rewritten

V-RayMtl Converter is available for Max 2013 to 2018 and costs $18.

Changes for v3.00pb3 are:
- Small bug fixes
- Adds new animation options to the Pro version

ATree3D Pro is available for Max 7 to 2018 and costs €50. A demo version is available here.

Changes for v3.8 are:
- Functional updates to Nested Isolation

miauu's Script Pack Volume 1 is available for Max 9 to 2018 and costs €12.

Changes for v2.1 are:
- Adds the ability to create and publish live 3D content on Facebook

Verge3D is available for Max 2015 to 2018 and costs $290. A demo version is available here.

The PFM plugin allows you to natively load/save PFM files directly in Max as you can with other bitmaps. The PFM format (Portable Float Map) is a high-dynamic range (HDR) format. This format is necessary to compile HDR textures into the Source Engine, and can also used with other applications.