Updated CHANGELOG

CHANGELOG.md

@@ -12,6 +12,11 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 * Added a new test target for individual modules, available as `make test`
 * Added script in `tools/test_installed_modules.sh` that tests all modules in an installation
 * Build numbers are now prefixed with a `+`.
+* Cell mode: When using `make cellinstall`, the module is installed in the path
+  `${E3_CELL_PATH}/${EPICS_BASE_VERSION}/${E3_REQUIRE_VERSION}/module_name`. This allows
+  us to distinguish which version of base and require were used for the build.
+* A new make target, `cellbuild` has been added. This simply allows you to build (not install)
+  while still possibly linking with other Cell mode modules.
 
 ### Bugfixes
 * Removed `loadIocsh` function, which was just a cover for `runScript`.