Create sept-13.md

[hzoo]

• Actually released a beta!
  • Work on regressions, ask people to try it
• Move stuff into the monorepo: (babylon @danez was working on), (babel-preset-env @existentialism)
• babel-standalone + yarn workspaces linking was having issues so we reverted
• docs versioning? maybe a new url for babeljs.io/6/docs, babeljs.io/7/docs and default to 7? Need to put the version number somewhere as well.
• REPL bugs/versioning - people are reporting bugs in the REPL but it has old deps so we need to fix that.
• no major breaking changes planned other than the changes @loganfsmyth / @jridgewell already were thinking of
• fix cyclical deps We have a cyclic dependency through babel-traverse babel#6204
• Lerna: figure of publishing situation
• rename proposals plugins
• Logan had a concern about independent plugins/proposals - it is difficult specifically for decorators/class properties to work together. It's also the main issue we had with plugin ordering so maybe it should be combined
• runtime/transform-runtime/polyfill/regenerator situation sucks
• would be nice to land Handle syntax errors from babylon that need a plugin babel#6205 sometime, could be help-wanted
• for the future: "Analytics/Stats" Plugin #34

Misc (not discussed, but looking back at previous notes)

• At some point: do a post on open collective since we never did, can setup t-shirts again
• Better onboarding/contributing guide
• babel-bot needs some love
• Perf metrics: Provide information to users about code size, speed, etc babel#5340
• babel-init
• plugin ordering
• Guide on compiling/publishing ES2015+, .mjs, etc
• Better syntax errors: Handle syntax errors from babylon that need a plugin babel#6205
• future of babel-core and versioning it
• re-purpose babel again
• remove babel's hardcoding of traversal (async visitors, etc)