# tc39/proposals

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## Links

- GitHub: https://github.com/tc39/proposals
- Homepage: https://tc39.github.io/process-document/
- awesome-repositories: https://awesome-repositories.com/repository/tc39-proposals.md

## Topics

`committee` `ecmascript` `javascript` `language` `language-design` `proposal` `spec` `specification`

## Description

This repository serves as the official tracking and governance framework for the evolution of the ECMAScript language. It provides the structured methodology used by the software standards committee to manage the lifecycle of new language features, guiding them from initial ideation through formal ratification in the official technical specification.

The process relies on a stage-gate maturity model that requires increasing levels of technical evidence, experimental prototyping, and community consensus before a feature can advance. This approach ensures that every addition to the language undergoes rigorous public review and is supported by comprehensive conformance test suites to maintain consistency across execution environments.

The project maintains the living documentation that defines the precise behavior of the language. It coordinates the annual release cycle by managing the formal review periods and tracking the progression of proposals through the standardization pipeline.

## Tags

### Programming Languages & Runtimes

- [Language Specifications and Standards](https://awesome-repositories.com/f/programming-languages-runtimes/language-specifications-standards.md) — Manages the formal process of evolving the language by ratifying new features and updating technical specifications. ([source](https://tc39.github.io/process-document/))
- [Language Specifications](https://awesome-repositories.com/f/programming-languages-runtimes/language-specifications-standards/language-specifications.md) — Maintains the living documentation that defines the precise syntax and behavior of the language before implementation.
- [Programming Languages](https://awesome-repositories.com/f/programming-languages-runtimes/programming-language-varieties/programming-languages.md) — Guides the development of new language capabilities through defined maturity stages to ensure technical feasibility.

### Software Engineering & Architecture

- [Standardization Lifecycles](https://awesome-repositories.com/f/software-engineering-architecture/experimental-features/standardization-lifecycles.md) — Tracks the progression of new language features through experimental prototyping to final adoption.
- [Governance Models](https://awesome-repositories.com/f/software-engineering-architecture/governance-models.md) — Facilitates structured group decision-making and consensus building for language evolution through formal committee processes.
- [Governance Proposal Lifecycles](https://awesome-repositories.com/f/software-engineering-architecture/governance-proposal-lifecycles.md) — Establishes rigorous criteria and review cycles for proposed language additions to maintain ecosystem quality.
- [Proposal Lifecycle Management](https://awesome-repositories.com/f/software-engineering-architecture/proposal-lifecycle-management.md) — Guides the development of language additions by managing maturity stages and acceptance criteria for committee approval. ([source](https://tc39.github.io/process-document/))
- [Implementation Validation Frameworks](https://awesome-repositories.com/f/software-engineering-architecture/experimental-features/implementation-validation-frameworks.md) — Ensures design quality and technical feasibility through experimental prototypes and conformance tests. ([source](https://tc39.github.io/process-document/))

### System Administration & Monitoring

- [Standardization Maturity Models](https://awesome-repositories.com/f/system-administration-monitoring/system-management-interfaces/stability-maturity-levels/standardization-maturity-models.md) — Guides features through strictly defined levels of readiness to ensure technical feasibility before adoption.

### DevOps & Infrastructure

- [Public Review Processes](https://awesome-repositories.com/f/devops-infrastructure/feedback-loops/public-review-processes.md) — Provides transparent evaluation channels for the developer community to identify design flaws in proposed language features.

### Development Tools & Productivity

- [Test Suites](https://awesome-repositories.com/f/development-tools-productivity/debugging-profiling-testing/test-execution-management/test-suites.md) — Maintains comprehensive conformance test suites to ensure consistent behavior of language features across execution environments.