> ## Documentation Index > Fetch the complete documentation index at: https://docs.vertracloud.app/llms.txt > Use this file to discover all available pages before exploring further. # v26.4.6 — October 22, 2026 > Released October 22, 2026: multiple custom domains per application with automatic www, ports, path prefixes and redirects, and plans identified by name in the API **v26.4.6** ### Multiple custom domains per application An application can now have several custom domains, and adding, changing or removing one never restarts the application. Custom domains start at the Intermediary plan, and the number per application grows with the plan: | Plan | Domains per application | | - | -: | | Intermediary | 1 | | Enterprise-4 to Enterprise-8 | 2 | | Enterprise-12 to Enterprise-24 | 5 | | Enterprise-26 to Enterprise-32 | 20 | * **Automatic `www`:** adding `example.com` also adds `www.example.com`, and the other way around. The companion redirects to the main domain, doesn't count toward your limit, and can be turned off. Either one can be made the main domain. * **Port per domain:** each domain can reach a different port of your application, from 1 to 65535, with up to 5 ports besides 80 per application. * **Path prefix:** a domain can add a path such as `/api` in front of every request. Recommended for APIs. * **Redirects:** a domain can redirect to another domain of the same application with a `301`, `302`, `307` or `308` (default `308`), keeping the path and the query string. * **Status and cleanup:** each domain shows its status and certificate state. A domain that stays without DNS for 14 days is removed automatically and you get an email. When a domain is removed, by you, by unpublishing or by this cleanup, delete its `CNAME` and validation `TXT` records at your DNS provider. Root domains show a warning, because a `CNAME` on the root needs a DNS provider with CNAME flattening. New routes manage domains under `/v1/apps/{id}/domains`: [list](/api-reference/endpoint/apps/domains/list), [add](/api-reference/endpoint/apps/domains/create), [update](/api-reference/endpoint/apps/domains/update), [remove](/api-reference/endpoint/apps/domains/delete) and [DNS records](/api-reference/endpoint/apps/domains/dns). The SDKs, the CLI, the MCP server and the VS Code extension support them. See [Connect custom domains](/guides/custom-domain). ### Breaking change: plans are identified by name in the API The API identifies a plan by its name, such as `pro` or `enterprise-8`. The numeric plan ID is gone. * `GET /v1/users/me` no longer returns `plan_id` or `plan.id`. Read `plan.name` instead. `plan` is `null` when the account has no active plan. * Applications, databases and workspaces return `owner_plan` (the plan name, or `null`) instead of `owner_plan_id`. * Accounts without an active plan get `PLAN_REQUIRED` when they create applications or databases or publish a site. `FREE_PLAN_SUSPENDED` and `FREE_PLAN_NO_WEB_PUBLISH` are no longer returned. * The full list of names is in the [knowledge base](/knowledge-base#plan-names). ### Breaking change: custom domain routes replaced `GET`, `POST` and `DELETE /v1/apps/{id}/network/custom` and `GET /v1/apps/{id}/network/dns` are replaced by the domain routes above. * Application payloads return `domains`, a list, instead of `custom_domain`. `public_url` points to the main domain. The publish routes return the hostnames in `domains`. * `NO_CUSTOM_DOMAIN` is no longer returned: an application without domains has an empty list. * `DOMAIN_ALREADY_IN_USE` now answers `409` and `CUSTOM_DOMAIN_REGISTRATION_FAILED` answers `502`. * New error codes: `DOMAIN_NOT_FOUND`, `DOMAIN_LIMIT_REACHED`, `DOMAIN_PORT_LIMIT_REACHED`, `INVALID_DOMAIN_PORT`, `INVALID_PATH_PREFIX`, `INVALID_REDIRECT_TARGET` and `DOMAIN_CONNECT_UNAVAILABLE`. See [Errors](/api-reference/errors). Update the SDKs, the CLI and the MCP server together with any code that reads `plan_id`, `owner_plan_id` or `custom_domain`. ### SDKs, CLI, MCP server and VS Code extension 0.3.0 New versions of the [SDKs](/sdks) (JavaScript, Python and Go), the [CLI](/cli), the [MCP server](/mcp) and the [VS Code extension](/vscode-extension) support multiple custom domains per application and plans by name. They follow the breaking changes above, so update them together. * **CLI:** new `vertra app domains` commands (see [CLI](/cli#custom-domains)). Stopping an application or a database and removing an environment variable now ask for confirmation; declining any confirmation exits with code 1. * **MCP server:** new domain tools. Tools that delete, overwrite, stop, restart or change access are marked destructive, so the client asks before running them. Logs, files and other content from your applications are marked as untrusted. See [MCP](/mcp). * **VS Code extension:** manage all of an application's custom domains and see plan names. * **Your API key stays on the Vertra Cloud API:** the MCP server and the VS Code extension no longer follow redirects, and the SDKs drop the key when a redirect leaves the API. The SDKs and the MCP server also reject invalid request paths before sending anything. * **GitHub Action v1.0.4** uses CLI 0.3.0 by default. See [GitHub Actions](/github-actions). ### Environment variable limit raised to 256 An application can now have up to 256 environment variables, up from 25. Keys can have up to 255 characters and values up to 3,072. See [Configuration](/configuration). ### Malformed JSON now returns 400 A request with malformed JSON in the body now gets `400` with `INVALID_JSON`, where it used to get `500`. Other request problems also answer with their own status and a stable code: `UNSUPPORTED_MEDIA_TYPE` (`415`), `BAD_REQUEST` (`400`) and `REQUEST_TIMEOUT` (`408`). A request with `content-type: application/json` and an empty body still returns `400` `EMPTY_BODY`. See [Errors](/api-reference/errors). This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.