# Removed APIs

This page lists exported identifiers that no longer exist, the version that removed them, and what to use instead.

## Root Package Moved to core

v1.2.1 moved the scheduler from the module root (`package goCron`) to `github.com/pardnchiu/go-scheduler/core` (`package core`). Every identifier below still exists under `core` with the same signature, except `List`.

| Symbol | Package | Removed | Last available | Replacement |
|---|---|---|---|---|
| `New` | module root | Removed in v1.2.1 | v1.2.0 | `core.New` |
| `Config` | module root | Removed in v1.2.1 | v1.2.0 | `core.Config` |
| `Wait` | module root | Removed in v1.2.1 | v1.2.0 | `core.Wait` |
| `WaitState` | module root | Removed in v1.2.1 | v1.2.0 | `core.WaitState` |
| `Stop`, `Skip` constants | module root | Removed in v1.2.1 | v1.2.0 | `core.Stop`, `core.Skip` |
| `TaskPending`, `TaskRunning`, `TaskCompleted`, `TaskFailed` | module root | Removed in v1.2.1 | v1.2.0 | `core.TaskPending` and siblings |
| `Start` method | module root | Removed in v1.2.1 | v1.2.0 | `Start` on the value returned by `core.New` |
| `Stop` method | module root | Removed in v1.2.1 | v1.2.0 | `Stop` on the value returned by `core.New` |
| `Add` method | module root | Removed in v1.2.1 | v1.2.0 | `Add` on the value returned by `core.New` |
| `Remove` method | module root | Removed in v1.2.1 | v1.2.0 | `Remove` on the value returned by `core.New` |
| `RemoveAll` method | module root | Removed in v1.2.1 | v1.2.0 | `RemoveAll` on the value returned by `core.New` |
| `List` method returning `[]task` | module root | Removed in v1.2.1 | v1.2.0 | `List` on the value returned by `core.New`, now returning `[]*task` |
| `Len`, `Less`, `Swap`, `Push`, `Pop` on `taskHeap` | module root | Removed in v1.2.1 | v1.2.0 | No public replacement; internal `container/heap` implementation |

```go
// before v1.2.1
import cron "github.com/pardnchiu/go-scheduler"

scheduler, err := cron.New(cron.Config{Location: time.Local})

// v1.2.1 and later
import "github.com/pardnchiu/go-scheduler/core"

scheduler, err := core.New(core.Config{Location: time.Local})
```

## Custom Logger

| Symbol | Package | Removed | Last available | Replacement |
|---|---|---|---|---|
| `Log` type (alias of `go-logger` `Log`) | module root | Removed in v0.3.1 | v0.3.0 | No public replacement; logging uses `log/slog` internally |
| `Logger` type (alias of `go-logger` `Logger`) | module root | Removed in v0.3.1 | v0.3.0 | No public replacement |
| `Config.Log` field | module root | Removed in v0.3.1 | v0.3.0 | No public replacement; see [Configuration](/configuration#runtime-defaults) for the fixed logger |

See [Released](/released/) for the full changelog of each version.