The missing menu items are related to Classic pipeline functionality in Azure DevOps.
Why are these items disabled?
If options such as Releases, Task groups, or Deployment groups are missing under the Pipelines menu, Classic pipeline creation may be disabled at the organization or project level.
Microsoft has been moving customers toward YAML-based pipelines, and for new Azure DevOps organizations/projects, the ability to create Classic pipelines is disabled by default. When Classic pipeline creation is disabled and there are no existing Classic assets that require those options, the corresponding menu items may not be displayed.
Recommended approach
For new implementations, I recommend not relying on the legacy Classic pipeline experience. Instead, use YAML pipelines, particularly multi-stage YAML pipelines, to define your CI/CD process.
With YAML, your pipeline definition is stored alongside your source code and can be version-controlled, reviewed, and managed through your normal development workflow. Microsoft currently recommends starting with YAML for new Azure Pipelines implementations.
For example, a multi-stage YAML pipeline can model a flow such as:
Build → Test → Dev → QA → Production
with conditions, approvals, environments, and deployment jobs defined in YAML.
If you still need the Classic pipeline options
If you have an existing requirement to use Classic pipelines, you can enable the Classic release pipeline functionality.
Please refer to the steps provided in the answer above by Tejaswini Billakurthi, which explain how to check the settings at both the Organization and Project levels.
In particular, check:
Organization Settings → Pipelines → Settings
and
Project Settings → Pipelines → Settings
and verify that Disable creation of classic release pipelines is turned off, if your organization has approved the use of Classic releases. An organization-level restriction can take precedence over the project-level setting.
For new development, however, I would recommend using YAML/multi-stage YAML pipelines rather than introducing new Classic pipelines. Existing Classic pipelines can continue to be used, and Microsoft also provides guidance for migrating Classic pipelines to YAML.
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