diff --git a/Changelog b/Changelog
index c9479af15850d0b8684719891a1d1fd63219d4b9..40d1d2b7a5504335fffbab0af6fef7baa894281d 100644
--- a/Changelog
+++ b/Changelog
@@ -17,6 +17,10 @@
 Open Source Release <next-release>
 ##################################
 
+###################################
+Open Source Release 21.0 (Scandium)
+###################################
+
 -*  Doc       [2020-05-07] Fixes internal refs in generated pdfs (fixes #2505)
 -*  Kernel    [2020-05-04] Accept UCN-encoded unicode char in ACSL (fixes #@849)
 o   Kernel    [2020-04-27] Plug-ins specific dirs now use Filepath instead of
diff --git a/src/plugins/e-acsl/doc/Changelog b/src/plugins/e-acsl/doc/Changelog
index 2c736f3ce0e475fa120daa21c169bd24616acc8c..dbd6168806115a3b66e8903a5dbba20ee337a9d8 100644
--- a/src/plugins/e-acsl/doc/Changelog
+++ b/src/plugins/e-acsl/doc/Changelog
@@ -19,6 +19,10 @@
 #   configure   configure
 ###############################################################################
 
+#############################
+Plugin E-ACSL 21.0 (Scandium)
+#############################
+
 -* E-ACSL       [2020-03-24] Fix automatic deactivation of plug-in Variadic when
                 E-ACSL is directly called from Frama-C without using
                 e-acsl-gcc.sh.
diff --git a/src/plugins/wp/Changelog b/src/plugins/wp/Changelog
index 4ba62abcdd056cc8f9e218c5ee07a4195e541d78..22673dafee48a96c931e521209493d1ce35ec79e 100644
--- a/src/plugins/wp/Changelog
+++ b/src/plugins/wp/Changelog
@@ -20,6 +20,10 @@
 #   <Prover>: prover
 ###############################################################################
 
+#########################
+Plugin WP 21.0 (Scandium)
+#########################
+
  - WP          [2020-04-10] Full support for Why3 IEEE float library
  - WP          [2020-04-10] Removed option -wp-check
  - WP          [2020-04-09] Added smoke tests for dead call (-wp-smoke-dead-call)