diff --git a/installer/data/mysql/atomicupdate/bug_42344.pl b/installer/data/mysql/atomicupdate/bug_42344.pl
new file mode 100755
index 0000000000..78b65d1b68
--- /dev/null
+++ b/installer/data/mysql/atomicupdate/bug_42344.pl
@@ -0,0 +1,19 @@
+use Modern::Perl;
+use Koha::Installer::Output qw(say_warning say_success say_info);
+
+return {
+    bug_number  => "42344",
+    description => "Remove system preference 'CircSidebar'",
+    up          => sub {
+        my ($args) = @_;
+        my ( $dbh, $out ) = @$args{qw(dbh out)};
+
+        $dbh->do(
+            q{
+            DELETE FROM systempreferences
+            WHERE variable="CircSidebar"
+        }
+            ) == 1
+            && say_success( $out, "Removed system preference 'CircSidebar'" );
+    },
+};
diff --git a/installer/data/mysql/mandatory/sysprefs.sql b/installer/data/mysql/mandatory/sysprefs.sql
index 3cfcbc9fdf..a1a09d77e7 100644
--- a/installer/data/mysql/mandatory/sysprefs.sql
+++ b/installer/data/mysql/mandatory/sysprefs.sql
@@ -171,7 +171,6 @@ INSERT INTO systempreferences ( `variable`, `value` ) VALUES
 ('CircConfirmItemParts', '0'),
 ('CircControl','ItemHomeLibrary'),
 ('CircControlReturnsBranch','ItemHomeLibrary'),
-('CircSidebar','1'),
 ('CirculateILL','0'),
 ('ClaimReturnedChargeFee', 'ask'),
 ('ClaimReturnedLostValue', ''),
diff --git a/koha-tmpl/intranet-tmpl/prog/en/modules/admin/preferences/circulation.pref b/koha-tmpl/intranet-tmpl/prog/en/modules/admin/preferences/circulation.pref
index 915614043b..3ad9402d48 100644
--- a/koha-tmpl/intranet-tmpl/prog/en/modules/admin/preferences/circulation.pref
+++ b/koha-tmpl/intranet-tmpl/prog/en/modules/admin/preferences/circulation.pref
@@ -1,11 +1,5 @@
 Circulation:
     Interface:
-        -
-            - pref: CircSidebar
-              choices:
-                  1: Activate
-                  0: Deactivate
-            - the navigation sidebar on all circulation pages.
         -
             - pref: CircConfirmItemParts
               choices:
diff --git a/koha-tmpl/intranet-tmpl/prog/en/modules/circ/article-requests.tt b/koha-tmpl/intranet-tmpl/prog/en/modules/circ/article-requests.tt
index 3583141829..527d5db7d1 100644
--- a/koha-tmpl/intranet-tmpl/prog/en/modules/circ/article-requests.tt
+++ b/koha-tmpl/intranet-tmpl/prog/en/modules/circ/article-requests.tt
@@ -166,8 +166,7 @@
     [% END #/ WRAPPER breadcrumbs %]
 [% END #/ WRAPPER sub-header.inc %]
 
-[% SET aside = Koha.Preference('CircSidebar') ? 'circ-nav' : '' %]
-[% WRAPPER 'main-container.inc' aside=aside %]
+[% WRAPPER 'main-container.inc' aside='circ-nav' %]
     <h1>Article requests</h1>
     [% PROCESS urls_modal %]
 
diff --git a/koha-tmpl/intranet-tmpl/prog/en/modules/circ/branchoverdues.tt b/koha-tmpl/intranet-tmpl/prog/en/modules/circ/branchoverdues.tt
index cb30349577..45dffec1ba 100644
--- a/koha-tmpl/intranet-tmpl/prog/en/modules/circ/branchoverdues.tt
+++ b/koha-tmpl/intranet-tmpl/prog/en/modules/circ/branchoverdues.tt
@@ -28,8 +28,7 @@
     [% END #/ WRAPPER breadcrumbs %]
 [% END #/ WRAPPER sub-header.inc %]
 
-[% SET aside = Koha.Preference('CircSidebar') ? 'circ-nav' : '' %]
-[% WRAPPER 'main-container.inc' aside=aside %]
+[% WRAPPER 'main-container.inc' aside='circ-nav' %]
     <h1>Overdues with fines at [% Branches.GetLoggedInBranchname | html %]</h1>
 
     <form name="selectlocation" action="branchoverdues.pl" method="get">
diff --git a/koha-tmpl/intranet-tmpl/prog/en/modules/circ/branchtransfers.tt b/koha-tmpl/intranet-tmpl/prog/en/modules/circ/branchtransfers.tt
index 60e2a833e7..9b7b407ac7 100644
--- a/koha-tmpl/intranet-tmpl/prog/en/modules/circ/branchtransfers.tt
+++ b/koha-tmpl/intranet-tmpl/prog/en/modules/circ/branchtransfers.tt
@@ -54,8 +54,7 @@
     [% END #/ WRAPPER breadcrumbs %]
 [% END #/ WRAPPER sub-header.inc %]
 
-[% SET aside = Koha.Preference('CircSidebar') ? 'circ-nav' : '' %]
-[% WRAPPER 'main-container.inc' aside=aside %]
+[% WRAPPER 'main-container.inc' aside='circ-nav' %]
 
     [% IF ( found ) %]
         [% BLOCK transfer_hidden_fields %]
diff --git a/koha-tmpl/intranet-tmpl/prog/en/modules/circ/checkout-notes.tt b/koha-tmpl/intranet-tmpl/prog/en/modules/circ/checkout-notes.tt
index 663cb0171e..3cf8f8abe9 100644
--- a/koha-tmpl/intranet-tmpl/prog/en/modules/circ/checkout-notes.tt
+++ b/koha-tmpl/intranet-tmpl/prog/en/modules/circ/checkout-notes.tt
@@ -32,8 +32,7 @@
     [% END #/ WRAPPER breadcrumbs %]
 [% END #/ WRAPPER sub-header.inc %]
 
-[% SET aside = Koha.Preference('CircSidebar') ? 'circ-nav' : '' %]
-[% WRAPPER 'main-container.inc' aside=aside %]
+[% WRAPPER 'main-container.inc' aside='circ-nav' %]
     <h1>Checkout notes</h1>
 
     <div class="alert alert-warning" id="error" style="display:none;"></div>
diff --git a/koha-tmpl/intranet-tmpl/prog/en/modules/circ/circulation.tt b/koha-tmpl/intranet-tmpl/prog/en/modules/circ/circulation.tt
index 811cce33f8..9d44f1de22 100644
--- a/koha-tmpl/intranet-tmpl/prog/en/modules/circ/circulation.tt
+++ b/koha-tmpl/intranet-tmpl/prog/en/modules/circ/circulation.tt
@@ -61,7 +61,7 @@
 [% END #/ WRAPPER sub-header.inc %]
 
 [% SET asides = [] %]
-[% IF Koha.Preference('CircSidebar') && !( borrowernumber && patron ) %][% asides.push('circ-nav') %][% END %]
+[% IF !( borrowernumber && patron ) %][% asides.push('circ-nav') %][% END %]
 [% IF borrowernumber && patron %][% asides.push('circ-menu') %][% END %]
 [% WRAPPER 'main-container.inc' asides=asides %]
 
diff --git a/koha-tmpl/intranet-tmpl/prog/en/modules/circ/circulation_batch_checkouts.tt b/koha-tmpl/intranet-tmpl/prog/en/modules/circ/circulation_batch_checkouts.tt
index bdeffec728..27907c2a4a 100644
--- a/koha-tmpl/intranet-tmpl/prog/en/modules/circ/circulation_batch_checkouts.tt
+++ b/koha-tmpl/intranet-tmpl/prog/en/modules/circ/circulation_batch_checkouts.tt
@@ -45,8 +45,7 @@
     [% END #/ WRAPPER breadcrumbs %]
 [% END #/ WRAPPER sub-header.inc %]
 
-[% SET aside = Koha.Preference('CircSidebar') ? 'circ-menu' : '' %]
-[% WRAPPER 'main-container.inc' aside=aside %]
+[% WRAPPER 'main-container.inc' aside='circ-menu' %]
     [% IF patron %]
         [% INCLUDE 'members-toolbar.inc' %]
     [% END %]
diff --git a/koha-tmpl/intranet-tmpl/prog/en/modules/circ/curbside_pickups.tt b/koha-tmpl/intranet-tmpl/prog/en/modules/circ/curbside_pickups.tt
index e3abf04754..7c1f862f34 100644
--- a/koha-tmpl/intranet-tmpl/prog/en/modules/circ/curbside_pickups.tt
+++ b/koha-tmpl/intranet-tmpl/prog/en/modules/circ/curbside_pickups.tt
@@ -699,8 +699,7 @@
     [% END %]
 [% END # /BLOCK disabled %]
 
-[% SET aside = Koha.Preference('CircSidebar') ? 'circ-nav' : '' %]
-[% WRAPPER 'main-container.inc' aside=aside %]
+[% WRAPPER 'main-container.inc' aside='circ-nav' %]
     [% IF !disabled_for_branch %]
         [% PROCESS curbside_pickups_enabled %]
     [% ELSE %]
diff --git a/koha-tmpl/intranet-tmpl/prog/en/modules/circ/on-site_checkouts.tt b/koha-tmpl/intranet-tmpl/prog/en/modules/circ/on-site_checkouts.tt
index 0d67434b88..4768f39d9e 100644
--- a/koha-tmpl/intranet-tmpl/prog/en/modules/circ/on-site_checkouts.tt
+++ b/koha-tmpl/intranet-tmpl/prog/en/modules/circ/on-site_checkouts.tt
@@ -32,8 +32,7 @@
     [% END #/ WRAPPER breadcrumbs %]
 [% END #/ WRAPPER sub-header.inc %]
 
-[% SET aside = Koha.Preference('CircSidebar') ? 'circ-nav' : '' %]
-[% WRAPPER 'main-container.inc' aside=aside %]
+[% WRAPPER 'main-container.inc' aside='circ-nav' %]
     <h1>Pending on-site checkouts</h1>
     [% IF pending_onsite_checkouts %]
         <div class="page-section">
diff --git a/koha-tmpl/intranet-tmpl/prog/en/modules/circ/renew.tt b/koha-tmpl/intranet-tmpl/prog/en/modules/circ/renew.tt
index e20c75ece5..c7c43cbea2 100644
--- a/koha-tmpl/intranet-tmpl/prog/en/modules/circ/renew.tt
+++ b/koha-tmpl/intranet-tmpl/prog/en/modules/circ/renew.tt
@@ -33,8 +33,7 @@
     [% END #/ WRAPPER breadcrumbs %]
 [% END #/ WRAPPER sub-header.inc %]
 
-[% SET aside = Koha.Preference('CircSidebar') ? 'circ-nav' : '' %]
-[% WRAPPER 'main-container.inc' aside=aside %]
+[% WRAPPER 'main-container.inc' aside='circ-nav' %]
     [% IF error %]
         <div class="dialog alert alert-warning">
             <h1>Cannot renew:</h1>
diff --git a/koha-tmpl/intranet-tmpl/prog/en/modules/circ/returns.tt b/koha-tmpl/intranet-tmpl/prog/en/modules/circ/returns.tt
index 3048b1ca71..e31678f771 100644
--- a/koha-tmpl/intranet-tmpl/prog/en/modules/circ/returns.tt
+++ b/koha-tmpl/intranet-tmpl/prog/en/modules/circ/returns.tt
@@ -65,8 +65,7 @@
     [% END #/ WRAPPER breadcrumbs %]
 [% END #/ WRAPPER sub-header.inc %]
 
-[% SET aside = Koha.Preference('CircSidebar') ? 'circ-nav' : '' %]
-[% WRAPPER 'main-container.inc' aside=aside %]
+[% WRAPPER 'main-container.inc' aside='circ-nav' %]
 
     [% BLOCK all_checkin_messages %]
         [% IF hold_auto_filled %]
diff --git a/koha-tmpl/intranet-tmpl/prog/en/modules/circ/set-library.tt b/koha-tmpl/intranet-tmpl/prog/en/modules/circ/set-library.tt
index 2505e385b0..5a373f0d25 100644
--- a/koha-tmpl/intranet-tmpl/prog/en/modules/circ/set-library.tt
+++ b/koha-tmpl/intranet-tmpl/prog/en/modules/circ/set-library.tt
@@ -43,8 +43,7 @@
     [% END #/ WRAPPER breadcrumbs %]
 [% END #/ WRAPPER sub-header.inc %]
 
-[% SET aside = Koha.Preference('CircSidebar') ? 'circ-nav' : '' %]
-[% WRAPPER 'main-container.inc' aside=aside %]
+[% WRAPPER 'main-container.inc' aside='circ-nav' %]
     <h1>Set library</h1>
     <form method="post" action="/cgi-bin/koha/circ/set-library.pl" id="set-library-form">
         [% INCLUDE 'csrf-token.inc' %]
diff --git a/koha-tmpl/intranet-tmpl/prog/en/modules/circ/transfers_to_send.tt b/koha-tmpl/intranet-tmpl/prog/en/modules/circ/transfers_to_send.tt
index 715a42565e..c2950c5f71 100644
--- a/koha-tmpl/intranet-tmpl/prog/en/modules/circ/transfers_to_send.tt
+++ b/koha-tmpl/intranet-tmpl/prog/en/modules/circ/transfers_to_send.tt
@@ -33,8 +33,7 @@
     [% END #/ WRAPPER breadcrumbs %]
 [% END #/ WRAPPER sub-header.inc %]
 
-[% SET aside = Koha.Preference('CircSidebar') ? 'circ-nav' : '' %]
-[% WRAPPER 'main-container.inc' aside=aside %]
+[% WRAPPER 'main-container.inc' aside='circ-nav' %]
     <h1>Transfers requested of your library as of [% show_date | $KohaDates %]</h1>
 
     [% IF libraries.count %]
diff --git a/koha-tmpl/intranet-tmpl/prog/en/modules/circ/transferstoreceive.tt b/koha-tmpl/intranet-tmpl/prog/en/modules/circ/transferstoreceive.tt
index e39312db4a..7c1306ed78 100644
--- a/koha-tmpl/intranet-tmpl/prog/en/modules/circ/transferstoreceive.tt
+++ b/koha-tmpl/intranet-tmpl/prog/en/modules/circ/transferstoreceive.tt
@@ -33,8 +33,7 @@
     [% END #/ WRAPPER breadcrumbs %]
 [% END #/ WRAPPER sub-header.inc %]
 
-[% SET aside = Koha.Preference('CircSidebar') ? 'circ-nav' : '' %]
-[% WRAPPER 'main-container.inc' aside=aside %]
+[% WRAPPER 'main-container.inc' aside='circ-nav' %]
     <h1>Transfers made to your library as of [% show_date | $KohaDates %]</h1>
     <p>Your library is the destination for the following transfer(s)</p>
     [% IF ( TransfersMaxDaysWarning ) %]<p>Transfers are <span class="error">considered late</span> after [% TransfersMaxDaysWarning | html %] days.</p>[% END %]
diff --git a/koha-tmpl/intranet-tmpl/prog/en/modules/circ/view_holdsqueue.tt b/koha-tmpl/intranet-tmpl/prog/en/modules/circ/view_holdsqueue.tt
index 80b1d11ca1..4fe902f9bb 100644
--- a/koha-tmpl/intranet-tmpl/prog/en/modules/circ/view_holdsqueue.tt
+++ b/koha-tmpl/intranet-tmpl/prog/en/modules/circ/view_holdsqueue.tt
@@ -61,14 +61,10 @@
 [% END #/ WRAPPER sub-header.inc %]
 
 [% aside = BLOCK %]
-    [%~ IF ( total || Koha.Preference('CircSidebar') ) %]
-        [% IF ( total ) %]
-            [% PROCESS filter_form %]
-        [% END %]
-        [% IF Koha.Preference('CircSidebar') %]
-            [% INCLUDE 'circ-nav.inc' %]
-        [% END %]
-    [% END ~%]
+    [% IF ( total ) %]
+        [% PROCESS filter_form %]
+    [% END %]
+    [% INCLUDE 'circ-nav.inc' %]
 [% END %]
 
 [% WRAPPER 'main-container.inc' aside_block=aside %]
diff --git a/koha-tmpl/intranet-tmpl/prog/en/modules/circ/waitingreserves.tt b/koha-tmpl/intranet-tmpl/prog/en/modules/circ/waitingreserves.tt
index 95c5eb54e4..34ce787dda 100644
--- a/koha-tmpl/intranet-tmpl/prog/en/modules/circ/waitingreserves.tt
+++ b/koha-tmpl/intranet-tmpl/prog/en/modules/circ/waitingreserves.tt
@@ -42,8 +42,7 @@
     [% END #/ WRAPPER breadcrumbs %]
 [% END #/ WRAPPER sub-header.inc %]
 
-[% SET aside = Koha.Preference('CircSidebar') ? 'circ-nav' : '' %]
-[% WRAPPER 'main-container.inc' aside=aside %]
+[% WRAPPER 'main-container.inc' aside='circ-nav' %]
     <h1>Holds awaiting pickup for your library on: [% show_date | $KohaDates %]</h1>
     <h2>
         [% IF ( all_branches_link ) %]
diff --git a/koha-tmpl/intranet-tmpl/prog/en/modules/recalls/recalls_old_queue.tt b/koha-tmpl/intranet-tmpl/prog/en/modules/recalls/recalls_old_queue.tt
index 0ff965b3f6..741ad52f3f 100644
--- a/koha-tmpl/intranet-tmpl/prog/en/modules/recalls/recalls_old_queue.tt
+++ b/koha-tmpl/intranet-tmpl/prog/en/modules/recalls/recalls_old_queue.tt
@@ -29,8 +29,7 @@
     [% END #/ WRAPPER breadcrumbs %]
 [% END #/ WRAPPER sub-header.inc %]
 
-[% SET aside = Koha.Preference('CircSidebar') ? 'circ-nav' : '' %]
-[% WRAPPER 'main-container.inc' aside=aside %]
+[% WRAPPER 'main-container.inc' aside='circ-nav' %]
     <h1>Old recalls</h1>
     [% IF Koha.Preference('UseRecalls') %]
         <div class="page-section"> [% INCLUDE 'recalls.inc' %] </div>
diff --git a/koha-tmpl/intranet-tmpl/prog/en/modules/recalls/recalls_overdue.tt b/koha-tmpl/intranet-tmpl/prog/en/modules/recalls/recalls_overdue.tt
index 66ad4cf289..933d08461b 100644
--- a/koha-tmpl/intranet-tmpl/prog/en/modules/recalls/recalls_overdue.tt
+++ b/koha-tmpl/intranet-tmpl/prog/en/modules/recalls/recalls_overdue.tt
@@ -29,8 +29,7 @@
     [% END #/ WRAPPER breadcrumbs %]
 [% END #/ WRAPPER sub-header.inc %]
 
-[% SET aside = Koha.Preference('CircSidebar') ? 'circ-nav' : '' %]
-[% WRAPPER 'main-container.inc' aside=aside %]
+[% WRAPPER 'main-container.inc' aside='circ-nav' %]
     <h1>Overdue recalls</h1>
     [% IF Koha.Preference('UseRecalls') %]
         [% IF recalls.count %]
diff --git a/koha-tmpl/intranet-tmpl/prog/en/modules/recalls/recalls_queue.tt b/koha-tmpl/intranet-tmpl/prog/en/modules/recalls/recalls_queue.tt
index b67294627e..ced0feb94a 100644
--- a/koha-tmpl/intranet-tmpl/prog/en/modules/recalls/recalls_queue.tt
+++ b/koha-tmpl/intranet-tmpl/prog/en/modules/recalls/recalls_queue.tt
@@ -29,8 +29,7 @@
     [% END #/ WRAPPER breadcrumbs %]
 [% END #/ WRAPPER sub-header.inc %]
 
-[% SET aside = Koha.Preference('CircSidebar') ? 'circ-nav' : '' %]
-[% WRAPPER 'main-container.inc' aside=aside %]
+[% WRAPPER 'main-container.inc' aside='circ-nav' %]
     <h1>Recalls queue</h1>
     [% IF Koha.Preference('UseRecalls') %]
         [% IF recalls.count %]
diff --git a/koha-tmpl/intranet-tmpl/prog/en/modules/recalls/recalls_to_pull.tt b/koha-tmpl/intranet-tmpl/prog/en/modules/recalls/recalls_to_pull.tt
index c2a8569d4a..3663185e0a 100644
--- a/koha-tmpl/intranet-tmpl/prog/en/modules/recalls/recalls_to_pull.tt
+++ b/koha-tmpl/intranet-tmpl/prog/en/modules/recalls/recalls_to_pull.tt
@@ -32,8 +32,7 @@
     [% END #/ WRAPPER breadcrumbs %]
 [% END #/ WRAPPER sub-header.inc %]
 
-[% SET aside = Koha.Preference('CircSidebar') ? 'circ-nav' : '' %]
-[% WRAPPER 'main-container.inc' aside=aside %]
+[% WRAPPER 'main-container.inc' aside='circ-nav' %]
     <h1>Recalls to pull</h1>
     The following recalls could be fulfilled by available items.
     [% IF Koha.Preference('UseRecalls') %]
diff --git a/koha-tmpl/intranet-tmpl/prog/en/modules/recalls/recalls_waiting.tt b/koha-tmpl/intranet-tmpl/prog/en/modules/recalls/recalls_waiting.tt
index b26dee91bd..7160ac8dbc 100644
--- a/koha-tmpl/intranet-tmpl/prog/en/modules/recalls/recalls_waiting.tt
+++ b/koha-tmpl/intranet-tmpl/prog/en/modules/recalls/recalls_waiting.tt
@@ -29,8 +29,7 @@
     [% END #/ WRAPPER breadcrumbs %]
 [% END #/ WRAPPER sub-header.inc %]
 
-[% SET aside = Koha.Preference('CircSidebar') ? 'circ-nav' : '' %]
-[% WRAPPER 'main-container.inc' aside=aside %]
+[% WRAPPER 'main-container.inc' aside='circ-nav' %]
     <h1>Recalls awaiting pickup</h1>
 
     [% IF Koha.Preference('UseRecalls') %]