Doc 3.8.0

documentation/docs/reference/dashboards/dashboard-postgresql-instance-summary.md

@@ -6,7 +6,7 @@ This is essential for database administrators who need to troubleshoot specific
 
 Start here when you need to focus on one specific PostgreSQL instance, investigate slow queries, check connection usage, or analyze database-specific performance trends.
 
-![!image](../../images/PMM_PostgreSQL_Instance_Summary.jpg)
+![PMM_PostgreSQL_Instance_Summary](../../images/PMM_PostgreSQL_Instance_Summary.png)
 
 ## Service
 Shows essential information about your PostgreSQL instance including service name, version, uptime in days, and the server hostname. The server name is clickable to navigate to detailed node monitoring. This gives you quick access to basic instance identification and health information.

documentation/docs/reference/ui/timezone.md

@@ -1,10 +1,18 @@
-# Set timezones
+# Set time zone
 
-By default Grafana uses the timezone from your web browser. However, you can change this setting.
+By default, PMM uses the time zone from your web browser. You can change this in your profile preferences, and all dashboards will use your chosen time zone.
 
-To set the timezone:
+To set the time zone:
 {.power-number}
 
 1. On the main menu, go to **Account > Profile > Preferences**.
-2. Click to select an option in the **Timezone**.
+2. Select a time zone from the **Timezone** dropdown.
 3. Click **Save**.
+
+## Override time zone for a specific dashboard
+
+You can also change the time zone directly from a dashboard using the time range picker in the top right. This overrides your profile preference for that dashboard only.
+
+![Time range picker showing timezone selector](../../images/PMM_timezone_picker.png)
+
+This change does not update your profile preference and does not affect other dashboards.

documentation/docs/release-notes/3.8.0.md

@@ -0,0 +1,46 @@
+# Percona Monitoring and Management 3.8.0
+
+**Release date**: TBD
+
+Percona Monitoring and Management (PMM) is an open source database monitoring, management, and observability solution for MySQL, PostgreSQL, MongoDB, Valkey and Redis. PMM empowers you to:
+
+- monitor the health and performance of your database systems
+- identify patterns and trends in database behavior
+- diagnose and resolve issues faster with actionable insights
+- manage databases across on-premises, cloud, and hybrid environments
+
+## 📋 Release summary
+
+TODO
+
+## ✨ Release highlights
+
+TODO
+
+## 📦 Components upgrade
+
+TODO
+
+## 🔒 Security updates
+
+TODO
+
+## 📈 Improvements
+
+- [PMM-12392](https://perconadev.atlassian.net/browse/PMM-12392): Improved how PMM collects processlist data on MySQL 5.7.39+ and 8.0.22+ by switching from Information Schema to Performance Schema. On busy MySQL instances, this reduces the chance of query blocking and deadlocks, lowering the overall monitoring impact on your MySQL server workload.
+
+- [PMM-14937](https://perconadev.atlassian.net/browse/PMM-14937): When adding a MySQL, PostgreSQL, MongoDB, ProxySQL, Valkey, Amazon RDS, or Azure service, you can now set a **Connection timeout** to control how long PMM waits before giving up on a connection attempt. This is useful when monitoring remote or high-latency databases where the default 2s timeout is too short.
+
+- [PMM-14068](https://perconadev.atlassian.net/browse/PMM-14068): The [PostgreSQL Instance Summary](../reference/dashboards/dashboard-postgresql-instance-summary.md) dashboard is now easier to read: summary panels use a consistent color scheme to help you spot issues faster, the layout fits laptop screens without cutting off panels, and tables no longer require horizontal scrolling to see all data.
+
+## ✅ Fixed issues
+
+- [PMM-14748](https://perconadev.atlassian.net/browse/PMM-14748): Fixed dashboards resetting the time zone to the browser default when navigating between pages. All dashboards now respect the time zone set in your profile preferences. See [Set time zone](../reference/ui/timezone.md).
+
+- [PMM-14791](https://perconadev.atlassian.net/browse/PMM-14791): Resolved an issue in the **Disk Space** graphs on the **Disk Details** dashboard where values were hard to read, legend labels were missing, and charts were displayed incorrectly.
+
+## 🚀 Ready to upgrade to PMM 3.8.0?
+
+- [New installation](../quickstart/quickstart.md)
+- [Upgrading from PMM 3](../pmm-upgrade/index.md)
+- [Upgrading from PMM 2](../pmm-upgrade/migrating_from_pmm_2.md)

documentation/docs/release-notes/index.md

@@ -1,4 +1,5 @@
 # Release notes
+- [Percona Monitoring and Management 3.8.0](3.8.0.md)
 - [Percona Monitoring and Management 3.7.1](3.7.1.md)
 - [Percona Monitoring and Management 3.7.0](3.7.0.md)
 - [Percona Monitoring and Management 3.6.0](3.6.0.md)

documentation/mkdocs-pdf.yml

@@ -7,9 +7,9 @@ plugins:
     version_selector: false
   # https://github.com/orzih/mkdocs-with-pdf
   with-pdf:
-    output_path: "pdf/PerconaMonitoringAndManagement-3.7.1.pdf"
+    output_path: "pdf/PerconaMonitoringAndManagement-3.8.0.pdf"
     cover_title: "Percona Monitoring and Management Documentation"
-    cover_subtitle: 3.7.1 (April 30, 2026)
+    cover_subtitle: 3.8.0 (April 30, 2026)
     author: "Percona Technical Documentation Team"
     cover_logo: docs/images/Percona_Logo_Color.png
     custom_template_path: resources/templates

documentation/variables.yml

@@ -1,6 +1,6 @@
 # PMM Version for HTML
 # See also mkdocs.yml plugins.with-pdf.cover_subtitle and output_path
 
-release: '3.7.0'
-version: '3.7.0'
-release_date: 2026-04-01
+release: '3.8.0'
+version: '3.8.0'
+release_date: 2026-05-30