Hello,
I am currently building using a delta stage in my setup and was wondering if anyone knows whether it is possible to upgrade to the pi5 and camera module v3 (instead of the reccomended pi 4 and camera module v2). Not sure if these components are compatible with OFM software or hardware setup for the delta stage.
Thanks 
The current software is only compatible with Raspberry Pi Camera v2 and the Raspberry Pi up to Pi4. The released version of the software (v2.11) will run on a Raspberry Pi 2, but is best on a Pi3 or Pi4. The development version which is discussed in a tread on this forum (v3.0.0-alpha3) is only compatible with Pi3 and Pi4.
If you are using the delta stage, there are some slightly improved components and instructions in a development branch. This transfers the new illumination and some other parts that have been developed for the OpenFlexure Microscope v7.0 over to the Delta Stage. You can access the parts and instructions from Update instructions for v1.3.0 (!35) · Merge requests · OpenFlexure / OpenFlexure Delta Stage · GitLab where there is a view app button that takes you to the instructions.
Thank you. I will take a look.