Add 2.277.0 release notes (#975)

* add 2.276.2 release notes

* major version these changes

releaseNote.md

@@ -1,11 +1,16 @@
 ## Features
+  - Verify the Runner Hash during auto-upgrade before installing the new runner version (#967)
+  - Support download of runners from authenticated endpoints (#920)
+  - Enabled tty output in Docker Actions (#916)
+  - Added '--check' command to verify runner connectivity (#949)
 
 ## Bugs
-  - Downgrade runner to .NET 3 to address an issue with broken pipes in Ubuntu (#928)
-  - Fixed an issue where FIPS Cryptography broke back-compat scenarios (#928)
+  - Fix usage of /dev/null and ping in run.sh (#968)
 
 ## Misc
-  - Updated dotnet install scripts (#928)
+  - Updated the copy for various runner messages (#972)
+  - Added the runner's OS to telemetry (#939)
+  - Various other telemetry improvements (#935)
 
 ## Windows x64
 We recommend configuring the runner in a root folder of the Windows drive (e.g. "C:\actions-runner"). This will help avoid issues related to service identity folder permissions and long file path restrictions on Windows.

src/runnerversion

@@ -1 +1 @@
-2.276.1
+2.277.0