e><thead><tr><th>Key</th><th>Old Default Value</th><th>New Default Value</th><th>Old Description</th><th>New Description</th></tr></thead><tbody><tr><td><code>prometheus.tag</code></td><td><code>v2.3.1</code></td><td><code>v2.8.0</code></td><td></td><td></td></tr></tbody></table><h3 id=modified-global-key-value-pairs>Modified <code>global</code> key/value pairs</h3><table><thead><tr><th>Key</th><th>Old Default Value</th><th>New Default Value</th><th>Old Description</th><th>New Description</th></tr></thead><