diff --git a/Cargo.lock b/Cargo.lock
index a3f3c1e..0dfc9dc 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -165,7 +165,7 @@ checksum = "72b3254f16251a8381aa12e40e3c4d2f0199f8c6508fbecb9d91f575e0fbb8c6"
 
 [[package]]
 name = "binding-c"
-version = "0.1.0-beta.3"
+version = "0.1.0-beta.4"
 dependencies = [
  "cbindgen",
  "cqlib-core",
@@ -177,7 +177,7 @@ dependencies = [
 
 [[package]]
 name = "binding-python"
-version = "2.0.0-beta3"
+version = "2.0.0-beta4"
 dependencies = [
  "chrono",
  "cqlib-core",
@@ -464,14 +464,14 @@ dependencies = [
 
 [[package]]
 name = "cqlib"
-version = "0.1.0-beta.3"
+version = "0.1.0-beta.4"
 dependencies = [
  "cqlib-core",
 ]
 
 [[package]]
 name = "cqlib-core"
-version = "0.1.0-beta.3"
+version = "0.1.0-beta.4"
 dependencies = [
  "approx",
  "bitvec",
diff --git a/Cargo.toml b/Cargo.toml
index d12b31b..fb98316 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -8,7 +8,7 @@ members = [
 resolver = "2"
 
 [workspace.package]
-version = "0.1.0-beta.3"
+version = "0.1.0-beta.4"
 edition = "2024"
 rust-version = "1.89"
 license = "Apache-2.0"
diff --git a/crates/binding-c/Cargo.toml b/crates/binding-c/Cargo.toml
index cc9dea4..35b237c 100644
--- a/crates/binding-c/Cargo.toml
+++ b/crates/binding-c/Cargo.toml
@@ -9,7 +9,7 @@ license.workspace = true
 crate-type = ["rlib", "staticlib", "cdylib"]
 
 [dependencies]
-cqlib-core = { path = "../cqlib-core", version = "0.1.0-beta.3" }
+cqlib-core = { path = "../cqlib-core", version = "0.1.0-beta.4" }
 libc = "0.2"
 ndarray.workspace = true
 num-complex.workspace = true
diff --git a/crates/binding-python/Cargo.toml b/crates/binding-python/Cargo.toml
index 7ed2767..93619fe 100644
--- a/crates/binding-python/Cargo.toml
+++ b/crates/binding-python/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "binding-python"
-version = "2.0.0-beta3"
+version = "2.0.0-beta4"
 edition.workspace = true
 rust-version.workspace = true
 license-file.workspace = true
@@ -14,7 +14,7 @@ crate-type = ["cdylib", "rlib"]
 [dependencies]
 pyo3 = { version = "0.29", features = ["abi3-py310", "num-complex", "chrono"] }
 chrono = "0.4"
-cqlib-core = { path = "../cqlib-core", version = '0.1.0-beta.3' }
+cqlib-core = { path = "../cqlib-core", version = '0.1.0-beta.4' }
 num-complex.workspace = true
 numpy.workspace = true
 rustworkx-core.workspace = true
diff --git a/crates/cqlib-core/README.md b/crates/cqlib-core/README.md
index e9e5d17..4a7e391 100644
--- a/crates/cqlib-core/README.md
+++ b/crates/cqlib-core/README.md
@@ -14,13 +14,13 @@ Add the crate to your project:
 
 ```toml
 [dependencies]
-cqlib-core = "0.1.0-beta.3"
+cqlib-core = "0.1.0-beta.4"
 ```
 
 Or use Cargo:
 
 ```shell
-cargo add cqlib-core@0.1.0-beta.3
+cargo add cqlib-core@0.1.0-beta.4
 ```
 
 ## Quick start
diff --git a/crates/cqlib/Cargo.toml b/crates/cqlib/Cargo.toml
index 8cd2533..b39632e 100644
--- a/crates/cqlib/Cargo.toml
+++ b/crates/cqlib/Cargo.toml
@@ -26,4 +26,4 @@ categories = [
 
 
 [dependencies]
-cqlib-core = { path = "../cqlib-core", version = "0.1.0-beta.3" }
+cqlib-core = { path = "../cqlib-core", version = "0.1.0-beta.4" }
diff --git a/docs/releasing.md b/docs/releasing.md
index afe01cb..06fb84c 100644
--- a/docs/releasing.md
+++ b/docs/releasing.md
@@ -39,9 +39,9 @@ Tags use the Python version to identify a release batch:
 
 - Stable releases: `vX.Y.Z`.
 - Prereleases: `vX.Y.Z-alpha.N`, `vX.Y.Z-beta.N`, or `vX.Y.Z-rc.N`, with N starting at 1.
-- Current tag: `v2.0.0-beta.3`.
-- Current Python source version: `2.0.0-beta3`, normalized to `2.0.0b3` for PEP 440 and wheel filenames.
-- Current Rust/C version: `0.1.0-beta.3`; both inherit the workspace version.
+- Current tag: `v2.0.0-beta.4`.
+- Current Python source version: `2.0.0-beta4`, normalized to `2.0.0b4` for PEP 440 and wheel filenames.
+- Current Rust/C version: `0.1.0-beta.4`; both inherit the workspace version.
 
 Python and Rust/C versions evolve independently and do not need matching
 numbers. The Cargo.toml files at a given tag record the version mapping for that