title: How to use "conda update -n base conda" properly
body: <p>I have two very simple questions regarding updating conda. I.e. when updating one of my environments with
  <code>conda update --all</code>, I get a warning</p>
  <pre><code>==&gt; WARNING: A newer version of conda exists. &lt;==
    current version: xyz1
    latest version: xyz2
  
  Please update conda by running
  
      $ conda update -n base conda
  </code></pre>
  <p>My setup comprises a base environment and two actual work environments, say, (env1) and (env2). The latter two environments are kept up to date with <code>conda update --all</code>, issued within each of those environments. The base environment was only generated in the installation process of Anaconda.</p>
  <p><em>Question 1</em>: Should one run <code>conda update -n base conda</code> on the command line of the OS (linux) <strong>prior</strong> to activating any environment? Or should one activate a particular environment? Or is the environment out of which this command is issued irrelevant?</p>
  <p><em>Question 2</em>: After running <code>conda update -n base conda</code> from out of whatever environment, as determined by the answer to question 1, would a subsequent <code>conda update --all</code> issued within one of my two work environments (env1,2) install or update any additional stuff, only as a consequence of the previous <code>conda update -n base conda</code>?</p>
  <p>(PS.: I find many questions on stackoverflow regarding <code>conda update conda</code>, but they don't seem to cover this one.)</p>