# developing - Remove `duration` from prometheus labels. [4391](https://github.com/beego/beego/pull/4391) - Fix `unknown escape sequence` in generated code. [4385](https://github.com/beego/beego/pull/4385) - Using fixed name `commentRouter.go` as generated file name. [4385](https://github.com/beego/beego/pull/4385) - Fix 4383: ORM Adapter produces panic when using orm.RegisterModelWithPrefix. [4386](https://github.com/beego/beego/pull/4386) - Fix 4444: panic when 404 not found. [4446](https://github.com/beego/beego/pull/4446) - Fix 4435: fix panic when controller dir not found. [4452](https://github.com/beego/beego/pull/4452)