Version 2.7.0-dev.1.0

Merge commit 'ffbd2eb7eebf569b8aefd970cf59851aaf2869a3' into dev
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1596abf..6707c5a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,43 @@
 (Add new changes here, and they will be copied to the change section for the
  next release)
 
+### Core libraries
+
+#### `dart:io`
+
+* **Breaking change**: Added `IOOverrides.serverSocketBind` to aid in writing
+  tests that wish to mock `ServerSocket.bind`.
+
+### Dart VM
+
+* New fields added to existing instances by a reload will now be initialized
+lazily, as if the field was a late field. This makes the initialization order
+program-defined, whereas previously it was undefined.
+
+### Tools
+
+#### Linter
+
+The Linter was updated to `0.1.103`, which includes:
+
+* updates to `prefer_relative_imports` to use a faster and more robust way to check for self-package references
+* updates to our approach to checking for `lib` dir contents (speeding up `avoid_renaming_method_parameters` and
+  making `prefer_relative_imports` and `public_member_api_docs` amenable to internal package formats -- w/o pubspecs)
+
+#### Pub
+
+* `pub get` generates [`.dart_tools/package_config.json`](https://github.com/dart-lang/language/blob/62c036cc41b10fb543102d2f73ee132d1e2b2a0e/accepted/future-releases/language-versioning/package-config-file-v2.md)
+  in addition to `.packages` to support language versioning.
+
+* `pub publish` now warns about the old flutter plugin registration format.
+
+* `pub publish` now warns about the `author` field in pubspec.yaml being.
+  obsolete.
+
+* Show a proper error message when `git` is not installed.
+
+## 2.6.0 - 2019-11-05
+
 ### Language
 
 * **Breaking Change**: [Static extension members][] are accessible when
diff --git a/tools/VERSION b/tools/VERSION
index 0d42ece..200c0df 100644
--- a/tools/VERSION
+++ b/tools/VERSION
@@ -29,11 +29,11 @@
 #  * Deprecating an old ABI version:
 #     - increase OLDEST_SUPPORTED_ABI_VERSION to the version that is supported.
 #
-CHANNEL be
+CHANNEL dev
 MAJOR 2
 MINOR 7
 PATCH 0
-PRERELEASE 0
+PRERELEASE 1
 PRERELEASE_PATCH 0
 ABI_VERSION 23
 OLDEST_SUPPORTED_ABI_VERSION 23