From 0d535b49f129fc5b401cf478b9aad0ee9557d764 Mon Sep 17 00:00:00 2001
From: Guillaume Dalle <22795598+gdalle@users.noreply.github.com>
Date: Tue, 26 May 2026 09:39:10 +0200
Subject: [PATCH] Make JVPCache immutable

---
 Project.toml | 2 +-
 src/jvp.jl   | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/Project.toml b/Project.toml
index ff8e51c..d6b8384 100644
--- a/Project.toml
+++ b/Project.toml
@@ -1,6 +1,6 @@
 name = "FiniteDiff"
 uuid = "6a86dc24-6348-571c-b903-95158fe2bd41"
-version = "2.31.0"
+version = "2.31.1"
 
 [deps]
 ArrayInterface = "4fba245c-0d91-5ea0-9b3e-6abc04ee57a9"
diff --git a/src/jvp.jl b/src/jvp.jl
index fa940aa..3db5eb9 100644
--- a/src/jvp.jl
+++ b/src/jvp.jl
@@ -11,7 +11,7 @@ and `v` is a vector.
 - `x1::X1`: Temporary array for perturbed input values
 - `fx1::FX1`: Temporary array for function evaluations
 """
-mutable struct JVPCache{X1, FX1, FDType}
+struct JVPCache{X1, FX1, FDType}
     x1::X1
     fx1::FX1
 end