**wq.build 1.3.0b1** is the beta of the upcoming 1.3 version of wq.build (formerly wq.core). The new module combines the wq core command as well as the (non-deprecated) commands from `wq.app.build` into a single module. See the release notes for [wq.app 1.3 beta](https://github.com/wq/wq.app/releases/v1.3.0b1) for more details.
In general it makes sense to just install the [latest wq package](https://github.com/wq/wq/releases/1.3.0b1), which specifies wq.build as a dependency. The upgrade from wq 1.2 to 1.3 will generally just work, though the old wq.core package will remain installed. This is generally harmless, but if you uninstall wq.core *after* upgrading, you may experience issues with the wq command. If this happens, try uninstalling then reinstalling with these commands:
python3 -m pip uninstall wq.core wq.start
python3 -m pip uninstall wq.build
python3 -m pip install wq==1.3.0b1