diff --git a/0001-Fix-without-lsp-issue-379.patch b/0001-Fix-without-lsp-issue-379.patch
new file mode 100644
index 0000000..d5bae21
--- /dev/null
+++ b/0001-Fix-without-lsp-issue-379.patch
@@ -0,0 +1,53 @@
+From 29caaed5ead5a62787475286afd22e40585b8bb8 Mon Sep 17 00:00:00 2001
+From: John Bowman <bowman@ualberta.ca>
+Date: Wed, 14 Jun 2023 22:36:35 -0600
+Subject: [PATCH] Fix --without-lsp (issue #379).
+
+---
+ common.h | 17 ++++++++---------
+ 1 file changed, 8 insertions(+), 9 deletions(-)
+
+diff --git a/common.h b/common.h
+index 13f8be10..6ee3d971 100644
+--- a/common.h
++++ b/common.h
+@@ -17,28 +17,27 @@
+ #include "config.h"
+ #endif
+ 
+-#ifdef HAVE_LSP
+ #if __cplusplus < 201703L
++
++#ifdef HAVE_LSP
+ #include <boost/optional.hpp>
+ #include <boost/none.hpp>
+ using boost::optional;
+ #define nullopt boost::none
+ using boost::make_optional;
+ #else
+-#include <optional>
+-using std::optional;
+-using std::nullopt;
+-using std::make_optional;
+-#endif
+-
+-#else
+-#if __cplusplus < 201703L
+ #include "optional.hpp"
+ #define boost nonstd
+ using nonstd::optional;
+ using nonstd::nullopt;
+ using nonstd::make_optional;
+ #endif
++
++#else
++#include <optional>
++using std::optional;
++using std::nullopt;
++using std::make_optional;
+ #endif
+ 
+ using std::make_pair;
+-- 
+2.41.0
+
diff --git a/2.83.tar.gz b/2.83.tar.gz
deleted file mode 100644
index 30f77bd..0000000
--- a/2.83.tar.gz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:cca2ffc0f611c7c3b70ff6b21403ec431d9d25e01a05d31316aecb544c41e5f9
-size 12511016
diff --git a/2.86.tar.gz b/2.86.tar.gz
new file mode 100644
index 0000000..9d2f77e
--- /dev/null
+++ b/2.86.tar.gz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:3ebcc90beb67bf7f8575fb519cb9d5d3c6cfd77f97ee1f69d53af458563c8aaa
+size 12524934
diff --git a/asymptote.changes b/asymptote.changes
index df44d8f..a15d369 100644
--- a/asymptote.changes
+++ b/asymptote.changes
@@ -1,3 +1,13 @@
+-------------------------------------------------------------------
+Sat Jun 24 12:24:02 UTC 2023 - Jan Engelhardt <jengelh@inai.de>
+
+- Update to release 2.86
+  * Terminate phase1 of simplex method once a zero-cost solution
+    is found.
+  * Fix bug in XDR reads due to uninitialized variable.
+  * Add high-resolution clock; update FFT support.
+- Add 0001-Fix-without-lsp-issue-379.patch
+
 -------------------------------------------------------------------
 Sat Nov 19 22:16:05 UTC 2022 - Jan Engelhardt <jengelh@inai.de>
 
diff --git a/asymptote.spec b/asymptote.spec
index 445b2a5..836a9f6 100644
--- a/asymptote.spec
+++ b/asymptote.spec
@@ -1,7 +1,7 @@
 #
 # spec file for package asymptote
 #
-# Copyright (c) 2022 SUSE LLC
+# Copyright (c) 2023 SUSE LLC
 #
 # All modifications and additions to the file contributed by third parties
 # remain the property of their copyright owners, unless otherwise agreed
@@ -18,7 +18,7 @@
 
 %bcond_with lsp
 Name:           asymptote
-Version:        2.83
+Version:        2.86
 Release:        0
 Summary:        2D & 3D TeX-Aware vector graphics language
 License:        LGPL-3.0-or-later
@@ -27,6 +27,7 @@ URL:            https://asymptote.sourceforge.io/
 
 #Git-Clone:     https://github.com/vectorgraphics/asymptote
 Source:         https://github.com/vectorgraphics/asymptote/archive/refs/tags/%version.tar.gz
+Patch1:         0001-Fix-without-lsp-issue-379.patch
 BuildRequires:  automake
 BuildRequires:  bison
 BuildRequires:  flex