diff --git a/CONTRIBUTORS.md b/CONTRIBUTORS.md
index 92ed7966400..9b33799473b 100644
--- a/CONTRIBUTORS.md
+++ b/CONTRIBUTORS.md
@@ -33,6 +33,7 @@ Created by running `./build-support/bin/contributors.sh`.
 + Christopher Livingston
 + Christopher Neugebauer
 + Cody Gibb
++ Colin Taylor
 + Craig Schertz
 + Cristian Matache
 + Damon Revoe
diff --git a/src/python/pants/VERSION b/src/python/pants/VERSION
index ba610dcf02c..ae01f6e3b8c 100644
--- a/src/python/pants/VERSION
+++ b/src/python/pants/VERSION
@@ -1 +1 @@
-2.7.0.dev0
+2.7.0.dev1
diff --git a/src/python/pants/notes/2.7.x.md b/src/python/pants/notes/2.7.x.md
index 716a43f7d97..734c551ed13 100644
--- a/src/python/pants/notes/2.7.x.md
+++ b/src/python/pants/notes/2.7.x.md
@@ -1,3 +1,37 @@
+## 2.7.0.dev1 (Jul 16, 2021)
+
+### New Features
+
+* Allow restricting which versions are valid for `ExternalTools`. ([#12332](https://github.com/pantsbuild/pants/pull/12332))
+
+* Add experimental tool lockfiles for Black, Isort, Yapf, Coverage.py, Lambdex, and Protobuf MyPy ([#12357](https://github.com/pantsbuild/pants/pull/12357))
+
+* Add yapf Python formatter ([#12317](https://github.com/pantsbuild/pants/pull/12317))
+
+* Support running pexes from a working directory. ([#12347](https://github.com/pantsbuild/pants/pull/12347))
+
+* Adding ASDF support to interpreter-search-paths ([#12028](https://github.com/pantsbuild/pants/pull/12028))
+
+* Add `[python-setup].experimental_lockfile` to consume lockfiles ([#12316](https://github.com/pantsbuild/pants/pull/12316))
+
+### Plugin API Changes
+
+* Do not leak subsystems as goals to the command line interface ([#12337](https://github.com/pantsbuild/pants/pull/12337))
+
+* Validate option default values to be of correct type. ([#12331](https://github.com/pantsbuild/pants/pull/12331))
+
+### Bug fixes
+
+* Fix anonymous telemetry logging. ([#12340](https://github.com/pantsbuild/pants/pull/12340))
+
+* Fixup incorrect platform help message. ([#12320](https://github.com/pantsbuild/pants/pull/12320))
+
+### Documentation
+
+* Improve wording for `pex_binary` `platforms` field help ([#12304](https://github.com/pantsbuild/pants/pull/12304))
+
+--------------------------------------------------------------------
+
 ## 2.7.0.dev0 (Jul 09, 2021)
 
 ### New Features