chore: bump version to v0.50.57, update CHANGELOG

CHANGELOG.md

@@ -1,5 +1,13 @@
 # Hermes Web UI -- Changelog
 
+## [v0.50.57] — 2026-04-15
+
+### Added
+- **Auto-generated session titles** — after the first exchange, a background thread generates a concise title from the first user message and assistant reply, replacing the default first-message substring. Updates live in the UI via a new `title` SSE event. Manual renames are preserved; generation only runs once per session. Includes MiniMax token budget handling and a local heuristic fallback. (Fixes #495, PR #535 by @franksong2702)
+
+### Changed
+- **SSE stream termination** — streams now end with `stream_end` instead of `done` so the background title generation thread has time to emit the title update before the client disconnects.
+
 ## [v0.50.55] — 2026-04-15
 
 ### Fixed

static/index.html

@@ -553,7 +553,7 @@
                 <div class="settings-section-title">System</div>
                 <div class="settings-section-meta">Instance version and access controls.</div>
               </div>
-              <span class="settings-version-badge">v0.50.55</span>
+              <span class="settings-version-badge">v0.50.57</span>
             </div>
             <div class="settings-field" style="border-top:1px solid var(--border);padding-top:12px;margin-top:8px">
               <label for="settingsPassword" data-i18n="settings_label_password">Access Password</label>