increase hardened_malloc class region sizes

static/releases.html

@@ -456,6 +456,8 @@
                         <li>replace our workaround for another upstream user profile crash issue with a proper fix based on the approach of the fix from Sony</li>
                         <li>Vanadium: update Chromium base to 90.0.4430.210</li>
                         <li>hardened_malloc: purge memory even if VMA exhaustion causes munmap or MAP_FIXED mmap calls to fail</li>
+                        <li>hardened_malloc: increase class region size on x86_64 to 32GiB</li>
+                        <li>hardened_malloc: increase class region size on arm64 to 2GiB (should be 32GiB on devices where we've enabled 4-level page tables but that requires setting up build configuration infrastructure)</li>
                     </ul>
                 </article>
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