title: Backwards compatibility of enum fields
body: <p>I have an enum field with no default value:</p>
  <pre><code>{
    &quot;name&quot;: &quot;FavouriteIceCream&quot;,
    &quot;type&quot;: &quot;enum&quot;,
    &quot;symbols&quot;: [
      &quot;Vanilla&quot;,
      &quot;Strawberry&quot;,
      &quot;Chocolate&quot;
    ]
  }
  </code></pre>
  <p>The topic has compatibility mode set to BACKWARDS. If I remove one of the symbols, the Schema Registry API still reports the schema as compatible.</p>
  <p>Is this correct? How would it parse a record with the field set to the now removed symbol?</p>