Use ubuntu 20.04

.github/workflows/main.yml

@@ -79,7 +79,7 @@ jobs:
 
   linux-build:
     name: Build and Publish Linux Binaries and Docker Image
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-20.04
     needs: [ mac-os-build, windows-build ]
     outputs:
       ziti-version: ${{ steps.get_version.outputs.ziti-version }}

CHANGELOG.md

@@ -1,6 +1,22 @@
 # Release 0.26.5
 
-This release is testing the release workflow and has no changes
+## What's New
+
+This build has no functional changes, but does have changes to the build workflow,
+because github is deprecating certain action runners. See
+https://github.blog/changelog/2022-08-09-github-actions-the-ubuntu-18-04-actions-runner-image-is-being-deprecated-and-will-be-removed-by-12-1-22/
+and
+https://github.blog/changelog/2022-07-20-github-actions-the-macos-10-15-actions-runner-image-is-being-deprecated-and-will-be-removed-by-8-30-22/
+for details 
+
+* MacOS builds are now done on the macos-11 github builder
+* Linux builds are now done on the ubuntu-20.04 builder
+
+This will impact the minimum versions that the ziti-controller and ziti-router will run because
+the version of glibc that the applciations are compiled with will affect which versions
+they run on.
+
+If this change negatively impacts you, please let us on [Discourse](https://openziti.discourse.group).
 
 # Release 0.26.4