swarm

.github/ISSUE_TEMPLATE/bug_report.yml

@@ -12,6 +12,12 @@ body:
         Include both the current behavior (what you are seeing) as well as what you expected to happen.
     validations:
       required: true
+  - type: markdown
+    attributes:
+    value: |
+      [Docker Swarm](https://www.mirantis.com/software/swarm/) uses a distinct compose file parser and 
+      as such doesn't support some of the recent features of Docker Compose. Please contact Mirantis
+      if you need assistance with compose file support in Docker Swarm.
   - type: textarea
     attributes:
       label: Steps To Reproduce

README.md

@@ -23,6 +23,12 @@ your application are configured.
 Once you have a Compose file, you can create and start your application with a
 single command: `docker compose up`.
 
+> **Note**: About Docker Swarm
+> Docker Swarm used to rely on the legacy compose file format but did not adopted the compose specification
+> so is missing some of the recent enhancements in the compose syntax. After 
+> [acquisition by Mirantis](https://www.mirantis.com/software/swarm/) swarm isn't maintained by Docker Inc, and
+> as such some Docker Compose features aren't accessible to swarm users.
+
 # Where to get Docker Compose
 
 ### Windows and macOS