[taler-docs] branch master updated: fix #8970

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The following commit(s) were added to refs/heads/master by this push:
     new 8fb2ca40 fix #8970
8fb2ca40 is described below

commit 8fb2ca4050e743b8afa4a4a5b8d81d9e4a07a656
Author: Christian Grothoff <christian@grothoff.org>
AuthorDate: Sun Jun 23 10:03:58 2024 +0200

    fix #8970
---
 core/tos.rst | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/core/tos.rst b/core/tos.rst
index 219b3927..75a2639f 100644
--- a/core/tos.rst
+++ b/core/tos.rst
@@ -28,11 +28,23 @@ and the privacy policy of a service.
   instead prompt the user again at the next opportunity. This is usually only
   the case if the terms of service were not configured correctly.
 
+  The "Etag" is generated from the first 256 bits of the SHA-512 hash
+  over the terms and encoded in Crockford base-32.  However, this behavior
+  is not normative and clients MUST NOT rely on it.
+
+  A "Taler-Terms-Version" header is generated to indicate the **legal** version
+  of the terms. This header will change whenever something **legally** changed
+  in the terms of service and the user must review and accept the terms of
+  service again.  If the "Taler-Terms-Version" is identical to one that the
+  user has already accepted, there is no need for the user to review the terms
+  again.
+
   When returning a full response (not a "304 Not Modified"), the server
   should also include a "Avail-Languages" header which includes
   a comma-separated list of the languages in which the terms of service
   are available in (see `availability hints specification
-  
<https://datatracker.ietf.org/doc/draft-nottingham-http-availability-hints/>`_).
 Clients can use this to generate a language switcher
+  
<https://datatracker.ietf.org/doc/draft-nottingham-http-availability-hints/>`_).
+  Clients can use this to generate a language switcher
   for users that may not have expressed a proper language preference.
 
   **Response:**

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