diff --git a/Cargo.lock b/Cargo.lock
index 86736d9..1cb03d3 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -168,7 +168,7 @@ checksum = "7a81dae078cea95a014a339291cec439d2f232ebe854a9d672b796c6afafa9b7"
 
 [[package]]
 name = "dive-deco"
-version = "4.3.3"
+version = "4.3.4"
 dependencies = [
  "criterion",
 ]
diff --git a/Cargo.toml b/Cargo.toml
index e27bd0b..62e288d 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "dive-deco"
-version = "4.3.3"
+version = "4.3.4"
 edition = "2021"
 license = "MIT"
 description = "A dive decompression models library (Buehlmann ZH-L 16C)"
diff --git a/src/buehlmann/compartment.rs b/src/buehlmann/compartment.rs
index e114812..69e4df6 100644
--- a/src/buehlmann/compartment.rs
+++ b/src/buehlmann/compartment.rs
@@ -28,7 +28,7 @@ pub struct Compartment {
     model_config: BuehlmannConfig,
 }
 
-#[derive(Debug, PartialEq)]
+#[derive(Debug, PartialEq, Clone)]
 pub struct Supersaturation {
     pub gf_99: f64,
     pub gf_surf: f64,
diff --git a/src/common/deco.rs b/src/common/deco.rs
index 7e0c513..b397196 100644
--- a/src/common/deco.rs
+++ b/src/common/deco.rs
@@ -38,7 +38,7 @@ pub struct Deco {
     sim: bool,
 }
 
-#[derive(Debug, PartialEq)]
+#[derive(Debug, PartialEq, Default, Clone)]
 pub struct DecoRuntime {
     // runtime
     pub deco_stages: Vec<DecoStage>,
@@ -53,7 +53,7 @@ pub struct DecoRuntime {
 #[derive(Debug)]
 struct MissedDecoStopViolation;
 
-#[derive(Debug, PartialEq)]
+#[derive(Debug, PartialEq, Clone)]
 pub enum DecoCalculationError {
     EmptyGasList,
     CurrentGasNotInList,
diff --git a/src/common/deco_model.rs b/src/common/deco_model.rs
index adfc8cd..cdc1b2c 100644
--- a/src/common/deco_model.rs
+++ b/src/common/deco_model.rs
@@ -26,7 +26,7 @@ pub trait DecoModelConfig {
     fn round_ceiling(&self) -> bool;
 }
 
-#[derive(Debug)]
+#[derive(Debug, Clone)]
 pub struct DiveState {
     pub depth: Depth,
     pub time: Seconds,
diff --git a/src/lib.rs b/src/lib.rs
index a829808..1b73a38 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -5,6 +5,6 @@ pub use buehlmann::{BuehlmannConfig, BuehlmannModel, Supersaturation};
 
 pub use common::{
     CeilingType, Deco, DecoCalculationError, DecoModel, DecoRuntime, DecoStage, DecoStageType,
-    Depth, Gas, GradientFactors, Minutes, MinutesSigned, NDLType, Pressure, RecordData, Seconds,
-    Sim,
+    Depth, DiveState, Gas, GradientFactors, Minutes, MinutesSigned, NDLType, Pressure, RecordData,
+    Seconds, Sim,
 };