v3.266.0

## 3.266.0 (2026-09-30)

### Bug Fixes

- [sdk/go] Use an explicit provider for resources from an extension package, instead of falling back to a default provider [#24702](https://github.com/pulumi/pulumi/pull/24702)
- [sdk/python] Use an explicit provider for resources from an extension package, instead of falling back to a default provider [#24702](https://github.com/pulumi/pulumi/pull/24702)
- [pcl] Order the members of a union type by a fixed structural order rather than by their printed form, so that a recursive object type prints all of its properties and diagnostics list union members consistently [#24804](https://github.com/pulumi/pulumi/pull/24804)
- [cli/new] Avoid printing the provider docs link twice in the `pulumi new` credentials warning [#24925](https://github.com/pulumi/pulumi/pull/24925)

### Improvements

- [cli/neo] Report the console URL and update identifiers in `pulumi neo` pulumi_preview/pulumi_up tool results [#24721](https://github.com/pulumi/pulumi/pull/24721)
- [sdkgen] Support `#/provider` doc references in schema descriptions [#24918](https://github.com/pulumi/pulumi/pull/24918)

### Miscellaneous

- [sdk/go] Remove `workspace.Credentials.AccessTokens` and read stored logins only from the `accounts` object of `credentials.json` [#24922](https://github.com/pulumi/pulumi/pull/24922)
- [sdk/dotnet] Upgrade dotnet to v3.114.1 [#24926](https://github.com/pulumi/pulumi/pull/24926)
- [java] Upgrade java to v1.37.3 [#24926](https://github.com/pulumi/pulumi/pull/24926)
- [yaml] Upgrade yaml to v1.38.8 [#24926](https://github.com/pulumi/pulumi/pull/24926)
- [hcl] Upgrade hcl to v0.18.3 [#24926](https://github.com/pulumi/pulumi/pull/24926)