This document outlines our focused tasks for TypeScript 4.7. It minimally indicates intent to investigate tasks or contribute to an implementation. Nothing is set in stone, but we will strive to complete these tasks in a reasonable timeframe.

Language and Compiler Features

• Node ESM UX Issues, and Move Node ESM Mode from Nightly
• Instantiation Expressions
• Import Strategies for import type and /// <reference />
• Investigate Contextually Typed And Compatible Operator
• lib.d.ts Updates

Editor Productivity

• Object Member Snippet Completions
• Investigate Go to JavaScript Implementation
• Prototype Virtual File System Support in TSServer
• Prototype Automatic Type Acquisition in Web Contexts
• Easy Run/Debug for Loose TypeScript Files
• Investigate TS Server Plugins on the Web

Performance

• Investigate Outstanding Performance Issues
• Find All References Refactoring and Optimizations
• Supporting Additional Trace Points
• Profiling/Tracing Mode Improvements
• Investigate Tooling for JIT Deoptimizations

Infrastructure

• Migrate to Modules
• Determine Shipping Strategy for Modules
• Fuzzer Improvements and Addressing Crashes
• Improving User Suite Reports
• Expand Perf Suite

Website

• Investigate Playground as a VS Code Extension