> ## Documentation Index > Fetch the complete documentation index at: https://docs.domino.ai/llms.txt > Use this file to discover all available pages before exploring further. # Domino 6.3.1 release notes > Domino 6.3.1 release notes: security updates, Governance in-app notifications, a Model Monitor install setting, and fixes for upgrades, runs, and NetApp Volumes. October 20, 2026 Domino 6.3.1 is a patch release for [Domino 6.3](/release-notes/6-3-0.md) with security updates and bug fixes. It adds in-app notifications for Governance, lets administrators choose whether to install [Domino Model Monitor (DMM)](/cloud/reference/glossary.md#model-monitoring), and fixes upgrade failures from 6.3.0. Additional component updates are available in [ddlctl and fleetcommand-agent release notes](/6.3/admin/installation/releases.md). ## Governance ### In-app notifications for approvals, findings, and stage assignments Governance now sends in-app notifications, in addition to email, when an [Approval](/cloud/reference/glossary.md#approval) is requested, a [Finding](/cloud/reference/glossary.md#finding) is assigned or reviewed, or a [bundle](/cloud/reference/glossary.md#bundle) [stage](/cloud/reference/glossary.md#stage) is assigned to you. See [Review bundles](/6.3/platform-capabilities/features/governance/work-with-bundles/review-bundles.md). *** ## Notes for platform administrators * **DMM is installed only when `dmm.enabled` is `true`.** See [`dmm.enabled`](/6.3/admin/configuration/installer-configuration#param-dmm-enabled). - **Deployments without model serving can archive Projects.** On those deployments, set the `com.cerebro.domino.modelServing.disabled` configuration record to `true`; see [Configuration records](/6.3/admin/configuration/central-configuration.md). * **Admin Toolkit checks are broader.** The [Admin Toolkit](/6.3/admin/admin-toolkit.md) checks more conditions, runs node checks on every node, and uses updated thresholds, so it can report warnings after the upgrade that it didn't report on 6.3.0. ## Bug fixes * [Workspaces](/cloud/reference/glossary.md#workspace), [Jobs](/cloud/reference/glossary.md#job), [scheduled Jobs](/cloud/reference/glossary.md#scheduled-job), and [Launcher](/cloud/reference/glossary.md#launcher) runs no longer fail at startup when DNS is briefly unavailable. - Runs no longer fail intermittently while **Preparing**. * [Service account](/cloud/reference/glossary.md#service-account) tokens no longer expire after about 8 hours. Replace any token you created on 6.3.0. - [Domino endpoints](/cloud/reference/glossary.md#domino-endpoint) built on Python 3.12 or later environments start. * Environment builds no longer fail when an unrelated container registry is unreachable or has invalid credentials. - [Apps](/cloud/reference/glossary.md#app) no longer return "URL Not Found" on clusters whose ingress controller requires an ingress class. Restart affected Apps after you upgrade. * Connecting to a Workspace through Domino Connect no longer removes [Organization](/cloud/reference/glossary.md#organization) memberships that come from single sign-on (SSO). - Domino CLI sign-in no longer fails with an authentication error. * After an administrator changes a user's password, the confirmation page shows the correct title. - The admin **NetApp Volumes** page lists all volumes instead of only the first 50. * Failed [NetApp Volume](/cloud/reference/glossary.md#netapp-volume) creates and deletes report an error instead of leaving the volume out of sync with NetApp storage. - `Deploy` [gates](/cloud/reference/glossary.md#gate) now block the [Hardware Tiers](/cloud/reference/glossary.md#hardware-tier) they list when you create a Domino endpoint. * **Add to Bundle** works for a Job's result files. - Gates from inactive [policy](/cloud/reference/glossary.md#policy) versions no longer apply to a bundle. * A Project's **Overview** no longer shows an error for a Git repository with no commits or no files. - On remote [Data Planes](/cloud/reference/glossary.md#data-plane), Workspaces and Jobs can reach the [Flows](/cloud/reference/glossary.md#flow) service. * Executions on Data Planes no longer get stuck in **Pending**. - Upgrades from 6.3.0 no longer fail when [Dataset](/cloud/reference/glossary.md#dataset) permissions contain duplicates. If Support applied a temporary fix for this issue, contact Support before you upgrade. * Upgrades after a backup and restore no longer stop during a permissions migration. If an upgrade already stopped this way, contact Support. - Restoring a backup into an empty PostgreSQL instance no longer fails. * Deployments with network policies turned off now create the databases for [tags](/cloud/reference/glossary.md#tag), [Properties](/cloud/reference/glossary.md#property), and NetApp Volumes. Upgrading to 6.3.1 creates any that are missing. ## Known issues The [Domino 6.3.0 known issues](/release-notes/6-3-0.md#known-issues) also apply to 6.3.1. ## Validated frameworks Domino 6.3.1 ships the same Apache Spark, Dask, and Ray versions as 6.3.0; see [Validated frameworks](/release-notes/6-3-0.md#validated-frameworks). ## Upgrade notes If you upgrade from Domino 6.2.x, the [Domino 6.3.0 upgrade notes](/release-notes/6-3-0.md#upgrade-notes) also apply. > [!WARNING] > > Keep `dmm.enabled: true` on deployments that use DMM, including when you migrate to a new installation. Otherwise, the upgrade or migration removes DMM or skips its data. * **Users can't sign in for a few minutes during the upgrade.** Keycloak restarts during the first upgrade to 6.3.1, so plan the upgrade for a maintenance window. Kubernetes support is unchanged from 6.3.0; see the [Kubernetes compatibility matrix](/6.3/admin/architecture-and-deployment/kubernetes-infrastructure.md#compatibility-matrix). | Platform | Kubernetes version | | :- | :- | | Red Hat OpenShift | 1.34 (OpenShift 4.21) | | Google GKE | 1.34, 1.35 | | Azure AKS | 1.34, 1.35 | | Amazon EKS | 1.34, 1.35 | | Nexus data plane (non-vCluster on Amazon EKS) | 1.34, 1.35 | ## Breaking changes & deprecations * **`git-lfs` is removed from Domino environment images.** If your workloads use Git Large File Storage (LFS), add `git-lfs` to your environment's Dockerfile instructions; see [Customize your Environment](/6.3/platform-capabilities/core-concepts/compute-environments/manage-compute-environments/5-edit-environment-definition.md). - **The remaining Project status and Jira elements are removed from the UI.** This completes the removal that started in 6.3.0: status tabs, columns, badges, and filters are gone from the **Projects** list, the **Projects Portfolio**, **Home**, and the Activity feed. Project status is still available through the API. * **The `domino-claude-plugin` repository is deprecated.** The Domino AI plugin, which carries the [Domino skills](/cloud/reference/glossary.md#domino-skill), now comes from [dominodatalab/domino-ai-plugin](https://github.com/dominodatalab/domino-ai-plugin). In 6.3.1, the [Domino Standard Environment (DSE)](/cloud/reference/glossary.md#domino-standard-environment-dse) installs it and, when a Workspace can reach GitHub, switches the Workspace's existing copy when it starts. Anywhere else you installed the plugin, switch it as the [Domino skills reference](/6.3/reference/skills.md#switch-from-domino-claude-plugin) describes. ## Related topics - [Domino Cloud release notes](/release-notes/cloud-release.md) - [Domino 6.3 release notes](/release-notes/6-3-0.md)