This release contains PyDev 12.0.0
It's possible to add it as an Eclipse update site using the url:
https://github.com/fabioz/Pydev/releases/download/pydev_12_0_0/
Or get a .zip to install manually by unzipping it in the dropins:
https://github.com/fabioz/Pydev/releases/download/pydev_12_0_0/PyDev.12.0.0.zip