The tc39/proposals repository is a tracking system for ECMAScript language feature proposals managed by the TC39 committee.
The repository addresses the need to organize and track the evolution of the JavaScript language through a formal standardization process. It maintains lists of proposals at different maturity stages, from Stage 0 (early ideas) through finished proposals that have been incorporated into the ECMAScript specification. The approach works by categorizing proposals by their advancement level within the TC39 process, with Stage 2 proposals and higher representing features the committee expects to develop and eventually include in the standard. The repository also tracks proposals for the ECMAScript Internationalization API Specification.
This repository is essential for JavaScript developers, language implementers, and standards participants who need to understand what features are coming to the language and at what stage of development they stand. It suits anyone involved in JavaScript tooling, runtime implementation, or long-term application architecture planning who needs visibility into upcoming language capabilities. The repository serves as the authoritative source for the formal TC39 proposal process rather than an alternative to other tracking methods.
Maintainers respond to new issues and pull requests within hours, indicating active engagement with the community. Work in the issue tracker centers on enhancement requests and easy first issues, suggesting the project maintains an accessible entry point for contributors while focusing on incremental improvements to the tracking system itself.
