diff --git a/.claude/JOURNAL.md b/.claude/JOURNAL.md
index 8633219..3365e21 100644
--- a/.claude/JOURNAL.md
+++ b/.claude/JOURNAL.md
@@ -245,4 +245,7 @@ This journal tracks substantive work on documents, diagrams, and documentation c
     **Result**: Updated JUPYTERHUB_ACTIVITYMON_HALF_LIFE default across Dockerfile, custom_handlers.py (DEFAULT_HALF_LIFE constant), activity_sampler.py (code and docstring), settings_dictionary.yml, and README.md. With 48h half-life, a sample from 48 hours ago has 50% weight, providing smoother decay for activity scoring
 
 81. **Task - Volume size tooltip with breakdown**: Added hover tooltip showing per-volume sizes<br>
-    **Result**: Modified `_fetch_volume_sizes()` to return `{encoded_username: {"total": float, "volumes": {suffix: float}}}` structure with per-volume breakdown (home, workspace, cache). Updated `ActivityDataHandler` to pass `volume_breakdown` dict to frontend. Enhanced `formatVolumeSize()` in activity.html to display tooltip on hover showing individual volume sizes (e.g., "cache: 500 MB\nhome: 1.2 GB\nworkspace: 3.5 GB"). Volume size displays dotted underline to indicate tooltip availability
+    **Result**: Modified `_fetch_volume_sizes()` to return `{encoded_username: {"total": float, "volumes": {suffix: float}}}` structure with per-volume breakdown (home, workspace, cache). Updated `ActivityDataHandler` to pass `volume_breakdown` dict to frontend. Enhanced `formatVolumeSize()` in activity.html to display tooltip on hover showing individual volume sizes (e.g., "cache: 500 MB\nhome: 1.2 GB\nworkspace: 3.5 GB"). Volume size displays dotted underline to indicate tooltip availability. Volume names are dynamically extracted from Docker - any extra user volumes are automatically included
+
+82. **Task - Simplify Activity column header**: Removed retention period from column title<br>
+    **Result**: Changed Activity column header from "Activity (7 days)" to just "Activity" in activity.html
diff --git a/project.env b/project.env
index cbde294..06a42e0 100644
--- a/project.env
+++ b/project.env
@@ -3,7 +3,7 @@ PROJECT_NAME="stellars-jupyterhub-ds"
 PROJECT_DESCRIPTION="Multi-user JupyterHub 4 deployment platform with data science stack, GPU auto-detection, NativeAuthenticator, and isolated per-user environments spawned via DockerSpawner"
 
 # Version
-VERSION="3.7.15_cuda-13.0.2_jh-5.4.2"
+VERSION="3.7.16_cuda-13.0.2_jh-5.4.2"
 VERSION_COMMENT="Activity Monitor: admin page with 3-state status, activity scoring, reset functionality"
 RELEASE_TAG="RELEASE_3.2.11"
 RELEASE_DATE="2025-11-09"
diff --git a/services/jupyterhub/html_templates_enhanced/activity.html b/services/jupyterhub/html_templates_enhanced/activity.html
index 7a2961b..95b0d79 100644
--- a/services/jupyterhub/html_templates_enhanced/activity.html
+++ b/services/jupyterhub/html_templates_enhanced/activity.html
@@ -47,7 +47,7 @@
           <th class="col-volumes text-center sortable" data-sort="volume_size_mb">Volumes <span class="sort-icon"></span></th>
           <th class="col-timeleft text-center sortable" data-sort="time_remaining_seconds">Time Left <span class="sort-icon"></span></th>
           <th class="col-lastactive sortable" data-sort="last_activity">Last Active <span class="sort-icon"></span></th>
-          <th class="col-activity sortable" data-sort="activity_score">Activity (7 days) <span class="sort-icon"></span></th>
+          <th class="col-activity sortable" data-sort="activity_score">Activity <span class="sort-icon"></span></th>
         </tr>
       </thead>
       <tbody id="activity-table-body">