A few changes based on user requests:
- circle can be constructed by center and segment
- added back the intersection tool. You have now two options to construct intersection:
- as before, on the fly, when constructing a line, you can construct the intersection
- by selecting two lines, you need to access the new intersection tool in the Point menu or toolbar.

The changes are in pre-release 11.12b.
From your latest DrGeo installation, you can upgrade to DrGeo pre-release 11.12b.
To upgrate to latest release, select in the DrGeo environment menu "update DrGeo", then save the session to make the changes permanent.