Changes for v2.5.19 include:
- Adds export of animation frame ranges
- Fixes the MAXScript API
- Fixes wrong bounds when the pivot is manually rotated

Flare3D is available for Max 2009 to 2014 and costs $496. A demo version is available here.

Changes for v2.0.1 are:
- Adds a right-handed space option
- Adds a scale option
- Adds optimizations for Matrix or SRT keys
- Adds key frame animation

AXE Pro is available for Max 7 to 2014. At the moment I have no information on pricing. A demo version is available here.

Changes for v1.008 are:
- CamRig has been updated to v1.1
- Reverse now supports custom attributes

Animators Tool Kit is available for Max 2010 to 2014 and costs $25. A demo version is available here.

Changes for v2.2.0.0 are:
- Fixes Zookeeper causing problems with menus and the CUI dialog in Max 2013 and 2014

Zookeeper is available for Max 2009 to 2014 and costs $249. A demo version is available here.

I tweeted this a few days ago, but forgot to post something here... In case you haven't seen it yet, head over to MaxUnderground and take a look at this incredible thread. Reading the comments is like walking through the 3ds Max Hall of Fame, such is the calibre of people posting there.

As a result of the post linked to above, MaxUnderground is now also looking for volunteers to help out with a new forum. All of the details can be found in this post.

Changes for v3.3.11c are:
- Fixes a minor interface bug

MadCar is available for Max 2008 to 2014 and costs €200. A demo version is available here.

Changes for v1.15 are:
- Drops support for Max 9
- Adds 'Keep World Plane Active ON/OFF': when ON you are no longer restricted to WP's coordinate system

Work Plane is available for Max 2008 to 2014 and costs $10.

This commercial MAXScript helps you to create multiple books with one click, based on textures and respecting proportions of those textures. It lets you make books with flat and rounded spines.

Books Creator is available for Max 9 to 2014 and costs €7.99.

Changes for v1.6 are:
- Adds support for Max 2014 (64-bit only)

Changes for v3.1 are:
- Para settings can now be changed from Para dialog box just like controller settings
- Zoom extent function is now available from the right click menu
- Mouse scroll now zooms in and out around the mouse pointer
- All child controllers now move with the parent controller when parent is collapsed
- Improved layout for properties and controller channels in new Para 3d interface
- First time opening of Para dialog box is now faster
- More tool tips are available to describe interface features
- New Custom Parameter controller is available from the controller library
- Adds a normalize vector option in the vector controller
- Additional update methods in the intersection controller
- ParaLink controller now shows all transformations when no controller is available on target array
- New align functions have been added to the Transform controller
- User can pass objects to the Mesh controller using another controller
- Random controller intensity option fixed
- Fixes a crash if there is an error in the update process
- Fixes bugs in the Intersection controller
- Set value spinner in the Interpolate controller is now functional
- Adds a prompt if two or more objects are selected with same index
- Update array from tool bar now works when multiple objects are selected
- Fixes a DotNet error in the arrange controller function
- Make unique function now works when multiple properties are selected
- New para node comes on front

Parametric Array is available for Max 2010 to 2014 and costs $80. A demo version is available here.

Changes for v2.1.9.0 are:
- Fixes a crash when assigning a controller to a parameter which would cause a circular reference
- Dragging a parameter input onto another parameter input now creates a wire between parameters
- In a composite node, internal graph inputs/outputs can be undocked/docked from the schematic view
- Internal work

Zookeeper is available for Max 2009 to 2014 and costs $249. A demo version is available here.

Changes for v1.2 are:
- Adds a random probability mode to adjust per-tile-probabilites
- Adds a Tile List dialog window to list tiles and probabilities
- You can now use a procedural map or a bitmap as mortar
- You can now blend between procedural and original mortar
- Adds a Statistics rollout with information about RAM use and pixel resolutions
- Adds independent adjustment of width/height for crop edges and procedural edges
- VP Crossmap v1.3.4 is now included
- Bitmap names are now shown while loading in the auto-load rollout
- Multimatte V-Ray element is now supported on channel 1
- Adds a changelog weblink in the About screen
- Tile hue values have been changed from -100/100 to -180/180
- Bump channel is no longer blurred too much when using real world mapping
- Crop edge and procedural edge are now calculated correctly

Walls & Tiles is available for Max 2011 to 2014 and costs €59.

Changes for Build 7.0.1.0131 are:
- New graph node 'FieldVelocitySet' lets you set a velocity field for the fluid
- ArrayNumIndices has been renamed to ArrayIndices and allows any input type
- DisplayPoint3 node input color now accepts a range of input colors
- The 'FieldSample' node has a new input 'default value' for setting the sampling value
- Fluid behavior has been improved when inside a moving container
- Too many bug-fixes to list here... a full list of fixes can be found here

RealFlow is available for Max 2008 to 2014 and costs €2995. A demo version is available here.

Changes for v1.0.4.2 are:
- Fixes a bug which caused realityPaint to crash on start-up on some systems

realityPaint Pro is available for Max 9 to 2014 and costs $199.95. A demo version is available here.

Raylight S.r.l. have posted a sneak peek video of their upcoming update XRayCAT Survival Toolkit v1.5.

Some of the new features are:
- Layer Manager: autoscan of Cat rigs in the scene
- Layer Manager now has a resizable window
- Layer Manager: 20 hotfix solved
- Work on the Pose Manager is in progress
- JoyCreator Pro has been totally rewritten
- JoyCreator Pro now has joystick 8 direction
- JoyCreator Pro: for any map point you can now add infinite layers
- Adds a non-destructive system for editing the created joysticks

At the moment there is no indication of when the new version will be released. I'll post it here when it comes out.

duberPython is a .NET plugin specifically targeted at studios or individuals who want to unleash the power of the Python language within Max. It was originally developed for a pipeline which needed Max nodes to communicate with APIs or other software packages that already supported Python (eg. a Shotgun wrapper for MAXScript is available upon request).

duberPython is available for Max 2009 to 2014 and costs $25. A demo version is available here.

Changes for v3.0.0.2 are:
- Adds support for Max 2014

Clone is available for Max 2012 to 2014 and costs $30. A demo version is available here.

Changes for v2.5.0 are:
- Adds support for Max 2014

Advanced Outline is available for Max 2012 to 2014 and costs $40. A demo version is available here.

Changes for v1.5.3 are:
- Adds support for Max 2014

PolyProfile is available for Max 2012 to 2014 and costs $40. A demo version is available here.

GrowFX MultiMap is a powerful texture map for using multiple textures in a material. You can blend a set number of maps into each other depending on a ramp that you define in the maps' UI.

Changes for v1.9.3 beta are:
- Adds support for Max 2014 and Max Design 2014 (64-bit)
- Adds the Displacement map for the Meta mesh builder
- Adds Decay parameters for the Wind object
- Adds a new direction modifier: Copy direction
- Adds new parameters 'Count Rate %' and 'Seed offset' to all Distributors
- Adds the Local vector to the Vector Orientation modifier
- Separates conversion of the GrowFX object to mesh and spline
- Adds the ability to separately convert paths to splines
- Adds MAXScript access for opening and saving presets
- Fixes some minor bugs

GrowFX is available for Max 9 to 2014 and costs $325. A demo version is available here.

Changes for v2.5 are:
- Fragmentation has been enhanced on complex concave meshes
- Animated parameters now work as expected when the plugin interface is unloaded
- After detaching the fragments, the normals are now preserved
- Adds an option to directly detach fragments in a separate layer with a custom name
- Fixes an issue with world coordinates and some imported objects
- Moving / animating external objects or particle systems as 'custom particle' is more responsive
- Parameter changes in 'Detach params' and 'System' no longer cause recomputation
- The pick button 'pickPFlow' is now correctly exposed to MAXScript

Changes for v2.1 are:
- 'Corner Align' now supports Preserve UVs
- Fixes groups behaviour in the 'Visual Pivot Placer'
- Shift LMB in 'Visual Pivot Placer' now picks the object under the mouse and aligns the pivots
- 'Clone Between' can now clone groups

miauu's Script Pack is available for Max 9 to 2014 and costs €12.

Changes for v1.62 are:
- New Voxels modifier lets you voxelize geometry and then control and animate them
- New Clusters modifier combines groups of fragments to more complex clustered fragments

RayFire Tool is available for Max 2009 to 2014 and costs $345. A demo version is available here.

Laubwerk Plants are your easy way to use high quality, botanically approved plants with multiple variations, ages and seasons in your 3D application. Visual plant library browsing, a wide range of Level of Detail Options and much more comes through the bundled Laubwerk Player, a piece of software that brings the plant dataset to life.

Plants Kit 2 offers a practical and diverse selection of highly-detailed and customizable trees native to North America and Europe, including Norway maple, sycamore maple, horse-chestnut, red horse-chestnut, silver birch, sweetgum, English oak, weeping willow, mountain ash and silver linden.

The Laubwerk Player provides quick visual access to the plant library on your computer, automatic generation of default materials, dynamic control for level of detail. You get multiple viewport drawing options (like a simple hull shape or a skeleton) for quick and feedback and low memory footprint while editing the scene and generates the fully detailed model dynamically at render time.

Laubwerk Plants Kit 2 is available for Max 2010 to 2014 and costs €149. A demo version is available here.

Changes for v1.0.5 are:
- Faster and more visually appealing Skeleton drawing mode
- Caching of plant models for faster loading of plants and improved memory use
- Enhanced usability via buttons for switching between viewport modes
- Extended MAXScript access to query plants meta data
- Fixes an issue in which materials would occasionally break when changing species
- Fixes an issue where plants with less than 100% leaf density take a long time to generate

Laubwerk Plants Kit 1 is available for Max 2010 to 2014 and costs €149. A demo version is available here.

Changes for v1.7 are:
- Adds a V-Ray native shader
- Updated automization scripts
- Improved memory pool
- Adds a new method called 'Direct Read' that allows you to load bigger projects
- Fixes problems in 'Export to web'
- New web format when you use Layers
- Fixes problems using Layers and modified Layers are saved to the scene
- Other bugfixes

MOTIVA Colimo is available for Max 2008 to 2014 and normally costs €139. For a limited time you can purchase licenses at a 30% discount.

Changes for v3.0.0 are:
- New user interface
- The plugin has been rewritten in C++
- Most parts of the VSSP code are C#
- About a 50% increase in stability and speed
- Improved memory usage
- Many bug-fixes

This version of V-Ray Studio Setup Pro is available for Max 2013 to 2014 and costs €60. The previous version is still available for Max versions prior to 2013.

Changes for v3.18.3 are:
- Adds support for Photoshop CC (Creative Cloud)
- Adds an option to offset the HP's vertex positions
- Fixes a problem in the Simple AO tool that caused a '.tga' error dialog
- Recompiled using the latest libraries (JRE 1.7u25, OpenRL 1.2R3)

Changes for v3.2 are:
- Adds support for Max 2014
- Adds automatic updating to any new version via Internet
- Adds automatic model check to meet requirements
- Adds automatic picking of optional objects (eyes, teeth, etc.)
- Fixes freezing during rig and skin phases
- Minor UI changes to increase usability
- Adds an Undo button in the 'Adjust Controls' group
- Adds a progress bar
- Improvements to the 'Adjust Splines' window
- Small improvements to eyelid rigging

BonyFace is available for Max 2008 to 2014 and costs $150. A demo version is available here.

Changes for v0.3.54 beta are:
- Adds anisotropy
- You can now pick textures from a loaded list
- Adds a script for Max that converts a Mental Ray scene to a NOX scene
- The old version of Metropolis Light Transport reconnected to the geometry engine
- Adds camera perspective correction
- Adds bucket rendering
- Removed manual setting of reflection chance in Path Tracing
- Adds number of GI reflections and direct lighting candidates per one pixel sample
- Adds Fog and Aerial Perspective as final post-process
- NOX Benchmark is ready but will be released later

Changes for Beta 4 are:
- Adds support for Max 2014
- The installer will now detect Max 2012 German
- Arch & Design material specular highlights no longer cause 'Fireflies' when using GI
- Unsupported Brazil 2 translation support is now an opt-in configuration option

The Visualizer for Max is currently in open-beta testing, at some point in the near future it will become a commercial plugin. The Maya Visualizer costs $99, so I assume the Max one will be similarly priced.

Changes for v1.5 are:
- The 'Wall and Floor' tool has been updated
- Adds a new Fence tool for procedural fences with columns and gates
- Adds a new WinDoor tool for procedural windows and doors
- Adds a new Element tool for single and double pivoted handles
- The 'Add To Lib' tool has been updated

FuturArch is available for Max 2010 to 2014 (64-bit only) and costs $225. A demo version is available here.

Changes for v1.1.135 are:
- Improved calculation of per vertex velocities when exporting particle system polymeshes
- Fixes out of bounds normal indices being created when exporting merged meshes
- Interpolation optimizations
- Interpolation of dynamic topology polymeshes has been enhanced

Alembic for 3DS Max is available for Max 2010 to 2014 and costs $399. A demo version is available here.