I\'m working with Ubuntu 14.04 , I had a TensorFlow V0.10 but I want to update this version. 
if i do:
$ pip install --upgrade $TF_         
        for a specific version
pip install --upgrade tensorflow==2.2
(tensorflow)$ pip install --upgrade pip  # for Python 2.7
(tensorflow)$ pip3 install --upgrade pip # for Python 3.n
(tensorflow)$ pip install --upgrade tensorflow      # for Python 2.7
(tensorflow)$ pip3 install --upgrade tensorflow     # for Python 3.n
(tensorflow)$ pip install --upgrade tensorflow-gpu  # for Python 2.7 and GPU
(tensorflow)$ pip3 install --upgrade tensorflow-gpu # for Python 3.n and GPU
(tensorflow)$ pip install --upgrade tensorflow-gpu==1.4.1 # for a specific version
Details on install tensorflow.