Hi @lirw1984 ,
The “proper” way to upgrade a pip install package is through pip install orekit_jpype --upgrade when a new version of orekit_jpype is released.
Technically, with the jpype wrapper you could also just replace the jar, there is no special java code in the jpype version or orekit. But that should only be if you are working from source code installation, otherwise your pip versions will be messed up.