2019-07-23, Version 12.7.0 (Current)

Notable changes:

* deps:
  * Updated nghttp2 to 1.39.1. https://github.com/nodejs/node/pull/28448
  * Updated npm to 6.10.0. https://github.com/nodejs/node/pull/28525
* esm:
  * Implemented experimental "pkg-exports" proposal. A new `"exports"`
    field can be added to a module's `package.json` file to provide
    custom subpath aliasing. See
    https://github.com/jkrems/proposal-pkg-exports/ for more
    information. https://github.com/nodejs/node/pull/28568
* http:
  * Added `response.writableFinished`.
    https://github.com/nodejs/node/pull/28681
  * Exposed `headers`, `rawHeaders` and other fields on an
    `http.ClientRequest` `"information"` event.
    https://github.com/nodejs/node/pull/28459
* inspector:
  * Added `inspector.waitForDebugger()`.
    https://github.com/nodejs/node/pull/28453
* policy:
  * Added `--policy-integrity=sri` CLI option to mitigate policy
    tampering. If a policy integrity is specified and the policy does
    not have that integrity, Node.js will error prior to running any
    code. https://github.com/nodejs/node/pull/28734
* readline,tty:
  * Exposed stream API from various methods which write characters.
    https://github.com/nodejs/node/pull/28674
    https://github.com/nodejs/node/pull/28721
* src:
  * Use cgroups to get memory limits. This improves the way we set
    the memory ceiling for a Node.js process. Previously we would use
    the physical memory size to estimate the necessary V8
    heap sizes. The physical memory size is not necessarily the correct
    limit, e.g. if the process is running inside a docker container or
    is otherwise constrained. This change adds the ability to get a
    memory limit set by linux cgroups, which is used by docker
    containers to set resource constraints.
    https://docs.docker.com/config/containers/resource_constraints/
    https://github.com/nodejs/node/pull/27508

PR-URL: https://github.com/nodejs/node/pull/28817