blog: add release post for 12.16.1 (#2963)

Refs: nodejs/node#31781

Author: MylesBorins

locale/en/blog/release/v12.16.1.md

@@ -0,0 +1,140 @@
+---
+date: 2020-02-18T20:06:29.634Z
+version: 12.16.1
+category: release
+title: Node v12.16.1 (LTS)
+slug: node-v12-16-1
+layout: blog-post.hbs
+author: Myles Borins
+---
+
+### Notable changes
+
+Node.js 12.16.0 included 6 regressions that are being fixed in this release
+
+**Accidental Unflagging of Self Resolving Modules**:
+
+12.16.0 included a large update to the ESM implementation. One of the new features,
+Self Referential Modules, was accidentally released without requiring the `--experimental-modules`
+flag. This release is being made to appropriately flag the feature.
+
+**Process Cleanup Changed Introduced WASM-Related Assertion**:
+
+A change during Node.js process cleanup led to a crash in combination with
+specific usage of WASM. This has been fixed by partially reverted said change.
+A regression test and a full fix are being worked on and will likely be included
+in future 12.x and 13.x releases.
+
+**Use Largepages Runtime Option Introduced Linking Failure**:
+
+A Semver-Minor change to introduce `--use-largepages` as a runtime option
+introduced a linking failure. This had been fixed in master but regressed as the fix has not yet gone out
+in a Current release. The feature has been reverted, but will be able to reland with a fix in a future
+Semver-Minor release.
+
+**Async Hooks was Causing an Exception When Handling Errors**:
+
+Changes in async hooks internals introduced a case where an internal api call could be called with undefined
+causing a process to crash. The change to async hooks was reverted. A regression test and fix has been proposed
+and the change could re-land in a future Semver-Patch release if the regression is reliably fixed.
+
+**New Enumerable Read-Only Property on EventEmitter breaks @types/extend**
+
+A new property for enumerating events was added to the EventEmitter class. This
+broke existing code that was using the `@types/extend` module for extending classses
+as `@types/extend` was attemping to write over the existing field which the new
+change made read-only. As this is the first property on EventEmitter that is
+read-only this feature could be considered Semver-Major. The new feature has been
+reverted but could re-land in a future Semver-Minor release if a non breaking way
+of applying it is found.
+
+**Exceptions in the HTTP parser were not emitting an uncaughtException**
+
+A refactoring to Node.js interanls resulted in a bug where errors in the HTTP
+parser were not being emitted by `process.on('uncaughtException')` when the `async_hooks` `after`
+hook exists. The fix to this bug has been included in this release.
+
+### Commits
+
+* [[`51fdd759b9`](https://github.com/nodejs/node/commit/51fdd759b9)] - **async_hooks**: ensure event after been emitted on runInAsyncScope (legendecas) [#31784](https://github.com/nodejs/node/pull/31784)
+* [[`7a1b0ac06f`](https://github.com/nodejs/node/commit/7a1b0ac06f)] - ***Revert*** "**build**: re-introduce --use-largepages as no-op" (Myles Borins) [#31782](https://github.com/nodejs/node/pull/31782)
+* [[`a53eeca2a9`](https://github.com/nodejs/node/commit/a53eeca2a9)] - ***Revert*** "**build**: switch realpath to pwd" (Myles Borins) [#31782](https://github.com/nodejs/node/pull/31782)
+* [[`6d432994e6`](https://github.com/nodejs/node/commit/6d432994e6)] - ***Revert*** "**build**: warn upon --use-largepages config option" (Myles Borins) [#31782](https://github.com/nodejs/node/pull/31782)
+* [[`a5bc00af12`](https://github.com/nodejs/node/commit/a5bc00af12)] - ***Revert*** "**events**: allow monitoring error events" (Myles Borins)
+* [[`f0b2d875d9`](https://github.com/nodejs/node/commit/f0b2d875d9)] - **module**: 12.x self resolve flag as experimental modules (Guy Bedford) [#31757](https://github.com/nodejs/node/pull/31757)
+* [[`42b68a4e24`](https://github.com/nodejs/node/commit/42b68a4e24)] - **src**: inform callback scopes about exceptions in HTTP parser (Anna Henningsen) [#31801](https://github.com/nodejs/node/pull/31801)
+* [[`065a32f064`](https://github.com/nodejs/node/commit/065a32f064)] - ***Revert*** "**src**: make --use-largepages a runtime option" (Myles Borins) [#31782](https://github.com/nodejs/node/pull/31782)
+* [[`3d5beebc62`](https://github.com/nodejs/node/commit/3d5beebc62)] - ***Revert*** "**src**: make large\_pages node.cc include conditional" (Myles Borins) [#31782](https://github.com/nodejs/node/pull/31782)
+* [[`43d02e20e0`](https://github.com/nodejs/node/commit/43d02e20e0)] - **src**: keep main-thread Isolate attached to platform during Dispose (Anna Henningsen) [#31795](https://github.com/nodejs/node/pull/31795)
+* [[`7a5954ef26`](https://github.com/nodejs/node/commit/7a5954ef26)] - **src**: fix -Winconsistent-missing-override warning (Colin Ihrig) [#30549](https://github.com/nodejs/node/pull/30549)
+
+Windows 32-bit Installer: https://nodejs.org/dist/v12.16.1/node-v12.16.1-x86.msi<br>
+Windows 64-bit Installer: https://nodejs.org/dist/v12.16.1/node-v12.16.1-x64.msi<br>
+Windows 32-bit Binary: https://nodejs.org/dist/v12.16.1/win-x86/node.exe<br>
+Windows 64-bit Binary: https://nodejs.org/dist/v12.16.1/win-x64/node.exe<br>
+macOS 64-bit Installer: https://nodejs.org/dist/v12.16.1/node-v12.16.1.pkg<br>
+macOS 64-bit Binary: https://nodejs.org/dist/v12.16.1/node-v12.16.1-darwin-x64.tar.gz<br>
+Linux 64-bit Binary: https://nodejs.org/dist/v12.16.1/node-v12.16.1-linux-x64.tar.xz<br>
+Linux PPC LE 64-bit Binary: https://nodejs.org/dist/v12.16.1/node-v12.16.1-linux-ppc64le.tar.xz<br>
+Linux s390x 64-bit Binary: https://nodejs.org/dist/v12.16.1/node-v12.16.1-linux-s390x.tar.xz<br>
+AIX 64-bit Binary: https://nodejs.org/dist/v12.16.1/node-v12.16.1-aix-ppc64.tar.gz<br>
+SmartOS 64-bit Binary: https://nodejs.org/dist/v12.16.1/node-v12.16.1-sunos-x64.tar.xz<br>
+ARMv7 32-bit Binary: https://nodejs.org/dist/v12.16.1/node-v12.16.1-linux-armv7l.tar.xz<br>
+ARMv8 64-bit Binary: https://nodejs.org/dist/v12.16.1/node-v12.16.1-linux-arm64.tar.xz<br>
+Source Code: https://nodejs.org/dist/v12.16.1/node-v12.16.1.tar.gz<br>
+Other release files: https://nodejs.org/dist/v12.16.1/<br>
+Documentation: https://nodejs.org/docs/v12.16.1/api/
+
+### SHASUMS
+
+```
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