From 0dca2e630f50056f0092bd1df32f714528ae1594 Mon Sep 17 00:00:00 2001
From: Tobias Geerinckx-Rice <me@tobias.gr>
Date: Thu, 26 Nov 2020 14:51:52 +0100
Subject: [PATCH] gnu: udunits: Add a note on versioning.

* gnu/packages/c.scm (udunits): Add a comment about release numbering.
---
 gnu/packages/c.scm | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/gnu/packages/c.scm b/gnu/packages/c.scm
index c49c311fd0..7a7408b4d7 100644
--- a/gnu/packages/c.scm
+++ b/gnu/packages/c.scm
@@ -184,6 +184,8 @@ (define-public libbytesize
 (define-public udunits
   (package
     (name "udunits")
+    ;; Four-part version numbers are development snapshots, not releases.  See
+    ;; <https://github.com/Unidata/UDUNITS-2/issues/99#issuecomment-732323472>.
     (version "2.2.26")
     (source (origin
               (method url-fetch)