I thank everyone who even read this far - and any insights you may have. Including ArcGIS Pro and ArcGIS Enterprise. Visit to access help and other resources for recent versions of ArcGIS. Content linked from here is not updated and is not valid for recent versions of ArcGIS.
#Arcmap versions archive
This is an archive of older help systems. Accordingly, there is no release of ArcGIS Desktop that. The last release version of ArcGIS Desktop (which includes ArcMap) is 10.8.1. However, ArcGIS Server does offer some compatibility with previous versions of ArcGIS software components. Based on the above, will this custom PCS.PRJ work with ArcMap 10.3 since GCS 8255 and possibly underlying reference datum/epoch values not being available in older versions of the software? Links to archived documentation for ArcGIS 10.2 and earlier. ArcGIS Server 10.9 can be directly upgraded from versions 10.4 and later without being uninstalled. Or is this something that only matters if transformation from one to another - realizing these transformation aren't out there?Ģ.
![arcmap versions arcmap versions](https://www.spatialtimes.com/static/1776783fa3fcfb29dd72942b1255e9a4/005fa/python_programming_question-opensource_com.png)
But this detail isn't in the prj and not sure if this has any impact, or how the software can tell the difference. Example: v7 uses the epoch reference EPSG:1198, while v3 uses EPSG:1194. Is there something that makes these (all 7 versions of this GCS) different? Possibly an underlying DLL that has the additional "Reference Epoch Coordinate Transformation" values stored - as this is the only difference notice b/w the GCS's when digging into the EPSG site (wayyy deeper than I truly understand).
![arcmap versions arcmap versions](https://esribelux.com/wp-content/uploads/2020/01/Featured-image-Import-a-ArcMap-map-in-ArcGIS-Pro.jpg)
In looking at the details of the GCS for "NAD83(CSRS)v7" and comparing to another version such as " NAD83(CSRS)v3", there is no real difference in the details (beyond names). Our questions are when looking at the details of the new PRJ and the related GCS PRJ files.ġ. This creates our PCS projection file - all is well so far. We noticed that the new GCS for NAD83CSRS v7 (8255) is available in ArcGIS 10.6x and Pro, so we've created a new custom PCS using this GCS reference. We are using both ArcMap 10.6x with some partner agencies using 10.3x.
![arcmap versions arcmap versions](https://www.exprodat.com/wp-content/uploads/2020/05/DataAssistant3_v2.png)
Hoping Melita Kennedy is watching this thread This is related, but more specifically about how ArcMap handles some of these projections and their differences. Some previous posts have starting discussing LiDAR data in Ontario, Canada using the PCS: NAD83 CSRS v7 (epoch 2010).