diff --git a/CHANGELOG.md b/CHANGELOG.md
index b2b1ba5..4978657 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,8 +1,9 @@
 # News
 
-## v0.3.3 - dev
+## v0.3.3 - 2024-07-12
 
-- Add single qubit simplification rules.
+- Added single qubit simplification rules.
+- Removed evaluation of metadata equality in `Base.isequal`.
 
 ## v0.3.2 - 2024-07-02
 
diff --git a/Project.toml b/Project.toml
index 758d68d..58d45f7 100644
--- a/Project.toml
+++ b/Project.toml
@@ -1,7 +1,7 @@
 name = "QuantumSymbolics"
 uuid = "efa7fd63-0460-4890-beb7-be1bbdfbaeae"
 authors = ["QuantumSymbolics.jl contributors"]
-version = "0.3.3-dev"
+version = "0.3.3"
 
 [deps]
 Latexify = "23fbe1c1-3f47-55db-b15f-69d7ec21a316"
diff --git a/src/QSymbolicsBase/QSymbolicsBase.jl b/src/QSymbolicsBase/QSymbolicsBase.jl
index 796cc75..b53808f 100644
--- a/src/QSymbolicsBase/QSymbolicsBase.jl
+++ b/src/QSymbolicsBase/QSymbolicsBase.jl
@@ -145,7 +145,7 @@ Base.isequal(::Symbolic{Complex}, ::SymQObj) = false
 
 # TODO check that this does not cause incredibly bad runtime performance
 # use a macro to provide specializations if that is indeed the case
-propsequal(x,y) = all(n->isequal(getproperty(x,n),getproperty(y,n)), propertynames(x))
+propsequal(x,y) = all(n->(n==:metadata || isequal(getproperty(x,n),getproperty(y,n))), propertynames(x))
 
 
 ##
diff --git a/test/test_sym_expressions.jl b/test/test_sym_expressions.jl
index 1bbd479..6ded747 100644
--- a/test/test_sym_expressions.jl
+++ b/test/test_sym_expressions.jl
@@ -6,3 +6,10 @@ using QuantumSymbolics
 @test isequal(Z1 - Z2, Z1 + (-Z2))
 @test_broken isequal(Z1 - 2*Z2 + 2*X1, -2*Z2 + Z1 + 2*X1)
 @test_broken isequal(Z1 - 2*Z2 + 2*X1, Z1 + 2*(-Z2+X1))
+
+state1 = XBasisState(1, SpinBasis(1//2))
+state2 = XBasisState(1, SpinBasis(1//2))
+state3 = XBasisState(2, SpinBasis(1//2))
+
+@test isequal(state1, state2)
+@test !isequal(state1, state3)