Jfm/chef 19.3.15 (#4651)

* Updating for the installer fix

Signed-off-by: John McCrae <john.mccrae@progress.com>

* Updating for the installer fix

Signed-off-by: John McCrae <john.mccrae@progress.com>

* Editing

Signed-off-by: Ian Maddaus <ian.maddaus@progress.com>

* Update release date

Signed-off-by: Ian Maddaus <ian.maddaus@progress.com>

* Adding notation about the upgrade fix

Signed-off-by: John McCrae <john.mccrae@progress.com>

* Adding notation about the upgrade fix

Signed-off-by: John McCrae <john.mccrae@progress.com>

* Adding notation about the upgrade fix

Signed-off-by: John McCrae <john.mccrae@progress.com>

---------

Signed-off-by: John McCrae <john.mccrae@progress.com>
Signed-off-by: Ian Maddaus <ian.maddaus@progress.com>
Co-authored-by: Ian Maddaus <ian.maddaus@progress.com>

Author: johnmccrae

content/release_notes/client.md

@@ -17,6 +17,21 @@ summary = "Chef Infra Client release notes"
 <!-- cSpell:disable  -->
 <!-- vale off -->
 
+## Chef Infra Client 19.3.15
+
+Release date: May 22, 2026
+
+### Known issues
+
+- You can only upgrade to Chef Infra Client 19.3.15 from version 19.3.14. 
+  To upgrade from an earlier 19.x version, upgrade to version 19.3.14 first and then upgrade to 19.3.15.
+
+### Bug fixes
+
+- Fixed an issue where Chef Infra Client 19 couldn't be installed on Windows drives other than `C:\`.
+  Habitat-related paths now respect the `SYSTEMDRIVE` environment variable (for example, `D:\hab`, `E:\hab`), allowing you to install Chef Infra Client on any drive.
+  Omnibus-related paths remain hardcoded to `C:\opscode` to maintain backward compatibility with legacy Omnibus installations.
+
 ## Chef Infra Client 19.3.14
 
 Release date: May 20, 2026