Summary for the 65th meeting of Ecma TC39

Ecma Technical Committee 39 held three day meeting at Microsoft in Bellevue on July 24th - July 26th, 2018. Agenda can be found here.

New Proposals

TC39 discussed 6 new proposals. 3 entered staging process to discuss towards specification, and 1 remains at Stage 0 for further investigation before consensus.

Advanced to Stage 1

Advanced to Stage 2

Needs more discussion (remains Stage 0)

Existing Proposals

Advanced to Stage 2 from Stage 1

Advanced to Stage 3 from Stage 2

Needs more discussion/information

These proposals were discussed but did not advance to next stage at the meeting. Please refer to "Conclusion / Resolution" section on the notes to see the outcome of discussion.


Status updates from proposals working towards stage advancement.

Changes to existing specification

Consensus Reached Pull Requests

General Discussions

Topics related to ECMAScript specification activities.

Updates from ECMA-262 Editors Group

ES2019 now includes:

  1. ECMAScript is now a superset of JSON.
  2. The catch binding is now optional.
  3. bugfixes and few needs-consensus PRs.

Organizational update