FBX file versions corresponding to SDK versions

[Anonymous]

I need to create my own FBX converter using the official SDK. The converter itself is going to be really straightforward as it will only be for simple "passthru" FBX -> FBX conversions. I need this interchangeability to unify my workflow because of different internal FBX versions among software packages and assets.

I'm having a difficult time tracking down which file versions correspond to which SDK versions. In particular, the 2019 SDK states that it supports file versions 7.5, 7.4, 7.3, 7.2, 7.1, 7.0, 6.1, and 6.0 for import (and the same for export, minus 6.0). What do these version numbers equate to in terms of FBX 2013, 2014, 2015, etc.?

For example, the latest version of Unreal Engine 4 uses FBX 2016. What does that equate to in terms of the above numbering scheme? That's just one example. I'm looking for the complete list of equivalencies.

Any help would be appreciated. Thanks.

[Anonymous · Accepted solution]

So, apparently exporting FBX in ASCII format from 3ds Max indicates the version number in the header of the .fbx file. This helps as the exporting options in 3ds Max are indicated by year! Therefore, we have the following equivalencies:

2018 -> 7.5

2017 -> 7.5

2016 -> 7.5

2015 -> 7.4

2014 -> 7.4

2013 -> 7.3
2012 -> 7.2
2011 -> 7.1
2010 -> 6.1
2009 -> 6.1
2006 -> 6.1