diff --git a/README.md b/README.md
index 6fa1d8c9..f962f5f8 100644
--- a/README.md
+++ b/README.md
@@ -85,6 +85,7 @@ out = component output
 Rust versions of classes have limited Language Server Protocol integration, and we are actively working on fixing this.  
 
 # Release Notes
+2.1.1 -- license changed to Apache 2.0, default cycle grade and road type to zero if not provided, defaults to regenerative braking parameters, optional documentation fields now generated in Rust
 2.1.0 -- release and installation improvements, RustVehicle init cleanup, calibration improvements
 2.0.11 - 2.0.22 -- PyPI fixes.  Also, Rust version is now >100x faster than Python version.   
 2.0.10 -- logging fixes, proc macro reorganization, some CAVs performance fixes  
diff --git a/pyproject.toml b/pyproject.toml
index fd5cef6d..8b39bf5d 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "maturin"
 
 [project]
 name = "fastsim"
-version = "2.1.0"
+version = "2.1.1"
 authors = [{ name = "NREL/MTES/CIMS/MBAP Group", email = "fastsim@nrel.gov" }]
 description = "Tool for modeling vehicle powertrains"
 readme = "README.md"
diff --git a/rust/fastsim-core/Cargo.toml b/rust/fastsim-core/Cargo.toml
index 4bb9af12..164b69ea 100644
--- a/rust/fastsim-core/Cargo.toml
+++ b/rust/fastsim-core/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "fastsim-core"
-version = "0.1.4"
+version = "0.1.5"
 edition = "2021"
 license = "Apache-2.0"
 authors = ["NREL/MTES/CIMS/MBAP Group <fastsim@nrel.gov>"]
diff --git a/rust/fastsim-core/fastsim-proc-macros/Cargo.toml b/rust/fastsim-core/fastsim-proc-macros/Cargo.toml
index 719eeb07..5bf3f071 100644
--- a/rust/fastsim-core/fastsim-proc-macros/Cargo.toml
+++ b/rust/fastsim-core/fastsim-proc-macros/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 authors = ["NREL/MTES/CIMS/MBAP Group <fastsim@nrel.gov>"]
 name = "fastsim-proc-macros"
-version = "0.1.4"
+version = "0.1.5"
 edition = "2021"
 license = "Apache-2.0"
 readme = "../../../README.md"