From: Wolfgang Bangerth <bangerth@colostate.edu>
Date: Thu, 20 Jan 2022 02:52:09 +0000 (-0700)
Subject: Add a changelog entry.
X-Git-Tag: v9.4.0-rc1~571^2
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=61d31c6f9b6c9a0374eb6a04a40681a759594628;p=dealii.git

Add a changelog entry.
---

diff --git a/doc/news/changes/incompatibilities/20220118Bangerth b/doc/news/changes/incompatibilities/20220118Bangerth
new file mode 100644
index 0000000000..847ac22f05
--- /dev/null
+++ b/doc/news/changes/incompatibilities/20220118Bangerth
@@ -0,0 +1,12 @@
+Changed: The two algorithms in the ConsensusAlgorithms namespace
+(along with their base class) required a callback function that
+correctly sized the buffer into which the answer to a request was to
+be written. These algorithms have been rewritten in ways that make
+this no longer necessary, and they now correctly size these buffers
+themselves. As a consequence, the ConsensusAlgorithms::Process class
+no longer has the `prepare_for_answer()` function, and the
+ConsensusAlgorithms::AnonymousProcess class no longer has a
+corresponding member variable; in the latter case, the constructor of
+the class also no longer takes an argument to this effect.
+<br>
+(Wolfgang Bangerth, Peter Munch, 2022/01/18)