Siemens currently releases 2 main NX versions per year. ( previously 1/year) The current scheme is release in June and December.
The version numbers was f...ed up until last year. From 2022 the June release is named NX2206 and the December NX2212. Logical.
Before this, somebody had some pretty bad luck when thinking and they decided that after NX12 ( released 2017) they would stop naming the version totally and that it would only be "NX" without specific version number. They also believed that all users would be setting the "Automatic Update= on", which probably quite few did.
This idea failed since as soon as a new feature is implemented in the code, a file saved with that "NX Version" can no longer be opened with an older NX version... -we need to know the NX version.
So then S added a number to NX, but instead of using a logical number, they used significant years in the Siemens history as the number where the version after NX12 was NX1847. ( Siemens was founded 1847 )
That said, it's back to logical numbers now.
For each main version , ( NX2206, NX2212) there will be bugfixes released with some set intervals. ( I do not remember when ) this is where the 2206.8700 comes in .
Regards,
Tomas
The more you know about a subject, the more you know how little you know about that subject.