[elpa] main 564b2c1: * README (Release and devel archives): New section

[Stephen Leake]

branch: main
commit 564b2c148a37f241974573142e354e456d2c416e
Author: Stephen Leake <stephen_leake@stephe-leake.org>
Commit: Stephen Leake <stephen_leake@stephe-leake.org>

    * README (Release and devel archives): New section
---
 README | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/README b/README
index 0dc7f63..8a549a6 100644
--- a/README
+++ b/README
@@ -307,6 +307,7 @@ archives" are useful for debugging:
 
 ** Notes specific to =elpa.gnu.org=
 
+*** Periodic builds
 The way things are set up on this machine, we refresh the archive by
 a cron job.  You can do it by hand by logging in (access set up by FSF
 admins), and
@@ -321,6 +322,25 @@ Which makes a full archive deployment, as discussed above. 
 The symlink
 =/var/www/packages= points to the corresponding directory under
 =/home/elpa/=.
 
+*** Release and devel archives
+elpa.gnu.org serves the gnu and nongnu package collections (roughly,
+gnu requires FSF copyright assign, nongnu doesn't, but these terms are
+not fully defined here).
+
+In addition, elpa.gnu.org serves release and devel versions of each
+package. The release version is defined by a change in the =Version:=
+header of a package; the devel version is the latest commit.
+
+The release version is accessed at:
+
+gnu    - https://elpa.gnu.org/packages/
+nongnu - https://elpa.nongnu.org/nongnu/
+
+The devel version is accessed at:
+
+gnu    - https://elpa.gnu.org/devel
+nongnu - https://elpa.nongnu.org/nongnu-devel/
+
 * License
 This file is part of GNU Emacs.