New | Enhancements | Changes | Bug fixes
New
Local mabl debugger
Debug your failed mabl cloud runs without leaving your development workflow with the new local mabl debugger! Installed from the mabl CLI, the debugger can investigate failures, retrieve relevant test artifacts, start up a step-by-step debugging session in Chrome, and identify the best next step, whether that’s applying a fix to your code or updating tests to validate recent changes. Learn more.
New account-level dashboards
We’ve added two new dashboards to help account admins understand the overall state of your team’s testing in mabl:
- Value - review 10 key metrics that measure time saved maintenance and the team’s engagement with AI features. Learn more.
- Engagement - see who’s contributing to your mabl workspaces and what they’re working on. Learn more.
Company-scoped API keys
Create API keys at the company level to manage user provisioning and role assignment programmatically. Learn more.
Nested flows are generally available
Previously available through mabl Labs, nested flows are now generally available to all workspaces. By importing flows inside other flows, you can implement layers of reusable test logic across your tests. Learn more.
Enhancements
Test authoring improvements
- New test authoring skills - mabl’s agentic test authoring capabilities now offer an expanded range of new step types to reduce the need for manual intervention, including accessibility checks, conditional logic, MFA logins, among others. Learn more.
- Trace and audit agentic authoring - you can now review the original plan from your authoring sessions and spot which test versions were co-authored by the agent in the version history. Learn more.
New MCP tools
Using the cloud MCP? Be sure to try out the latest capabilities:
- Conversational test planning - talk through your test plan with the mabl agent before authoring, just like you would in the mabl app. Learn more.
- Create and run tests locally - kick off test authoring and execution against your local environments from the cloud MCP. Previously locall authoring and execution was only available via the local MCP. Learn more.
- Investigate failures - ask your AI client to investigate failures from your recent mabl deployments so you can apply fixes or update tests. Learn more.
- Review test quality - ask the mabl MCP to surface flaky tests, track quality trends, and focus your cleanup work. Learn more.
More reliable browser tests
Check out these two recent enhancements that improve the reliability of element finds and text entry in your browser tests:
- Custom test ID attributes - create more resilient finds by configuring custom test ID attributes according to your team’s coding standards. Learn more.
- “Set value” text entry - to prevent issues with dropped characters, browser tests now default to a more robust method “set value” mode for text entry. Learn more.
Richer failure analysis
The mabl agent now generates more robust supporting evidence as part of the initial failure analysis, and those evidence details are now accessible from the reporting API, mabl MCP, and BigQuery export. Also, you can now use failure analysis for failed deployments! Learn more.
Changes
Deprecation of the local mabl MCP server
To focus continued investment on the cloud MCP server, mabl deprecated the local MCP server as of May 18, 2026. The local server will continue to function, but it will no longer receive new tools, feature updates, or support. Learn more.
Retirement of visual change learning for browser tests
On May 21, 2026, mabl retired visual change detection for browser tests. Browser test runs no longer generate visual change insights or create dynamic visual baselines with diff highlights. Moving forward, we encourage teams who used visual change learning to use failure analysis and visual assertions to investigate visual or structural UI changes between runs. Learn more.
MS Teams integration update
Microsoft has disabled support for Office 365 connectors. If your organization uses the Teams integration, make sure incoming webhooks are recreated with Microsoft’s new Workflows solution to ensure your team continues to receive mabl notifications in your Teams workspace. Learn more.
Bug fixes
General
- Fixed an issue where updating a DataTable from a CSV cleared scenarios that had been added to a plan.
- Fixed an issue with test names not appearing on the plan editing screen.
- Fixed a bug where signing in to the desktop app with Google redirected to a local login screen.
Test authoring
- Fixed an issue with the mabl Trainer becoming unresponsive when saving certain large tests.
- Fixed a bug where edited step descriptions were not saved in the mobile mabl Trainer.
- Fixed an issue where is present and is not present assertions incorrectly ran as visual finds when the innerText property was enabled in Configure find.
- Fixed an issue with Set file input steps uploading an incomplete file in certain desktop app configurations.
- Fixed an issue with the mabl PDF viewer failing to open PDFs whose file names contained accented characters.
- Fixed an issue that prevented starting mobile cloud training sessions.
- Fixed a bug where markdown headers in echo steps required a second save to render on the test details page.
Test execution
- Fixed an issue with certain steps failing to interact with elements during mobile cloud runs.
- Fixed a bug where ad hoc cloud runs of mobile web tests launched with a desktop configuration.
- Fixed an issue with large cloud test runs quitting unexpectedly.
- Fixed a bug where a specific type of duplicated is not present assertion passed even when the element was present.
Test output
- Fixed an issue that prevented live step update during cloud runs.
- Fixed an issue where step descriptions and metrics were missing from performance test results that used step groups.
- Fixed issues with PDF report downloads failing or hanging for certain test runs, including performance tests.
- Fixed an issue with Supporting Evidence screenshots not loading until a question was entered in conversational results analysis.
Integrations
- Fixed issues with the mabl MCP Xray integration tools failing to return test cases.
- Fixed a bug where the mabl MCP generated a browser test when an API test was explicitly requested.
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