MC 2026R2 Update 1

[kccadcam]

This is a little confusing....  
Do you uninstall 2026 and/or 2026R2 before installing this update?

Use this product to install Mastercam 2026.R2 Update 1 on a 64-bit operating system. It will not run on a 32-bit OS.

This product is a standalone installation and should not be installed on top of any previous versions of Mastercam 2026. Mastercam 2026 and Mastercam 2026.R2 cannot be installed on the same system. To uninstall Mastercam 2026.R2, go to Control Panel > Programs and Features and select Remove next to the Mastercam 2026 icon.

You must have a maintenance expiration date of January 31, 2026 or later to run this product. The version number of Mastercam.exe is 28.0.8789.0.

[jstell]

I asked the same on the mothership forum.  The response was that you can let mastercam auto-update from R1 Update 1, or R2, no need to uninstall.  The R2 U1 on the downloads page is a standalone install, and for that you would want to uninstall previous 2026 version, but you don't need to clear the registry or remove my- and shared- mastercam folders.

[MIL-TFP-41]

I ran a repair installation on an existing R2 installation. It did update it to R2-update 1 and and the bug I was seeing in transform appears to be resolved.

[megatronprime]

This is a little confusing....  
Do you uninstall 2026 and/or 2026R2 before installing this update?

Yes

[jstell]

This is a little confusing....  
Do you uninstall 2026 and/or 2026R2 before installing this update?

Yes

Only if you are doing the full install, downloaded ~2G file from the mastercam site.
If you use auto update from R1 U1 or R2, no need to uninstall.  If you don't get the update notification when you launch 2026, check the system tray for the mastercam updater, right click and select "check for updates".
https://my.mastercam.com/knowledgebase/mastercam-2026-r2-update-and-installation-changes/

[megatronprime]

Only if you are doing the full install, downloaded ~2G file from the mastercam site.
If you use auto update from R1 U1 or R2, no need to uninstall.  If you don't get the update notification when you launch 2026, check the system tray for the mastercam updater, right click and select "check for updates".
https://my.mastercam.com/knowledgebase/mastercam-2026-r2-update-and-installation-changes/

I saw the same post and tried that, it didn't work

[jstell]

I saw the same post and tried that, it didn't work

I've seen reports that it didn't work for some people.  Sorry to hear you were one.  I seem to remember some sort of language pack conflicts.  Did you have French installed in your previous 2026 version?

[CNCAppsJames]

My R2 Update 1 update was uneventful. 

The Planes Manager ... when you change G/WCS/T/C kinda seems a little sketchy for me. I suspect my video card settings may need some fine tuning. 

Everything else seems to be behaving as expected... so far. Doing some heavy surfacing and 5-Axis work next week. We shall see.