diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 9c9850b..87b2816 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -4,7 +4,7 @@ on:
   push:
     tags:
       # Match semantic version tags (e.g. v1.2.3, v10.11.12, v12.3.7-beta7)
-      - 'v[0-9]*.[0-9]*.[0-9]*'
+      - 'v*.*.*'
 
 jobs:
   goreleaser:
diff --git a/Cargo.lock b/Cargo.lock
index 8e1ec7e..d8b8f94 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -324,6 +324,7 @@ dependencies = [
  "cucumber",
  "octocrab",
  "ortho_config",
+ "regex",
  "serde",
  "serde_json",
  "serde_yaml",
@@ -349,6 +350,8 @@ dependencies = [
  "serde_json",
  "serial_test",
  "tempfile",
+ "test-support",
+ "test-utils",
  "thiserror 1.0.69",
  "tokio",
  "tracing",
@@ -2452,6 +2455,7 @@ version = "0.1.0"
 dependencies = [
  "comenqd",
  "octocrab",
+ "serial_test",
  "tempfile",
  "tokio",
  "wiremock",
diff --git a/Cargo.toml b/Cargo.toml
index 0fdfd2d..deaecef 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -18,11 +18,12 @@ clap = { workspace = true }
 comenq = { path = "crates/comenq" }
 comenqd = { path = "crates/comenqd" }
 ortho_config = { git = "https://github.com/leynos/ortho-config.git", tag = "v0.4.0" }
-tempfile = "3.10" # latest 3.x at time of writing; update as new patch versions release
+tempfile = { workspace = true } # latest 3.x at time of writing; update as new patch versions release
 yaque = { workspace = true }
-wiremock = "0.6"
+wiremock = { workspace = true }
 octocrab = { workspace = true }
 test-support = { path = "test-support" }
+regex = { workspace = true }
 
 [[test]]
 name = "cucumber"
@@ -51,7 +52,9 @@ thiserror = "1.0"
 ortho_config = { git = "https://github.com/leynos/ortho-config.git", tag = "v0.4.0" }
 serde_yaml = "0.9"
 tempfile = "3.10"
+regex = "1"
 rstest = "0.18.0"
+wiremock = "0.6"
 
 [lints.clippy]
 pedantic = { level = "warn", priority = -1 }
diff --git a/crates/comenqd/Cargo.toml b/crates/comenqd/Cargo.toml
index a54dd01..2a93bdf 100644
--- a/crates/comenqd/Cargo.toml
+++ b/crates/comenqd/Cargo.toml
@@ -23,4 +23,6 @@ figment = { version = "0.10", default-features = false, features = ["env", "toml
 rstest = { workspace = true }
 tempfile = { workspace = true } # latest 3.x at time of writing; update as new patch versions release
 serial_test = "2"
-wiremock = "0.6"
+test-support = { path = "../../test-support" }
+test-utils = { path = "../test-utils" }
+wiremock = { workspace = true }
diff --git a/crates/comenqd/src/config.rs b/crates/comenqd/src/config.rs
index 6f0bb6d..ca9bf29 100644
--- a/crates/comenqd/src/config.rs
+++ b/crates/comenqd/src/config.rs
@@ -118,53 +118,7 @@ mod tests {
     use std::fs;
     use tempfile::tempdir;
 
-    mod env_guard {
-        //! Test helpers for managing environment variables.
-
-        #[derive(Debug)]
-        pub struct EnvVarGuard {
-            key: String,
-            original: Option<String>,
-        }
-
-        impl EnvVarGuard {
-            /// Set an environment variable for the lifetime of the returned guard.
-            pub fn set(key: &str, value: &str) -> Self {
-                let original = std::env::var(key).ok();
-                set_env_var(key, value);
-                Self {
-                    key: key.to_string(),
-                    original,
-                }
-            }
-        }
-
-        impl Drop for EnvVarGuard {
-            fn drop(&mut self) {
-                match &self.original {
-                    Some(v) => set_env_var(&self.key, v),
-                    None => remove_env_var(&self.key),
-                }
-            }
-        }
-
-        /// Set an environment variable for tests.
-        ///
-        /// The nightly compiler marks `std::env::set_var` as `unsafe`.
-        /// Tests run serially so using it is acceptable here.
-        pub fn set_env_var(key: &str, value: &str) {
-            unsafe { std::env::set_var(key, value) };
-        }
-
-        /// Remove an environment variable for tests.
-        ///
-        /// `std::env::remove_var` is also `unsafe` on nightly.
-        pub fn remove_env_var(key: &str) {
-            unsafe { std::env::remove_var(key) };
-        }
-    }
-
-    use env_guard::{EnvVarGuard, remove_env_var};
+    use test_support::env_guard::{EnvVarGuard, remove_env_var};
 
     #[rstest]
     #[serial_test::serial]
diff --git a/test-support/Cargo.toml b/test-support/Cargo.toml
index ac68fa2..f2cab36 100644
--- a/test-support/Cargo.toml
+++ b/test-support/Cargo.toml
@@ -9,3 +9,6 @@ comenqd = { path = "../crates/comenqd" }
 octocrab = { workspace = true }
 tempfile = { workspace = true }
 wiremock = "^0.6"
+
+[dev-dependencies]
+serial_test = "^2"
diff --git a/tests/support/env_guard.rs b/test-support/src/env_guard.rs
similarity index 100%
rename from tests/support/env_guard.rs
rename to test-support/src/env_guard.rs
diff --git a/test-support/src/lib.rs b/test-support/src/lib.rs
index e879eb7..52cbe23 100644
--- a/test-support/src/lib.rs
+++ b/test-support/src/lib.rs
@@ -1,10 +1,12 @@
 //! Test support utilities.
 
 pub mod daemon;
+pub mod env_guard;
 pub mod util;
 
 // Re-exports from daemon module (added in main)
 pub use daemon::{octocrab_for, temp_config};
+pub use env_guard::{EnvVarGuard, remove_env_var, set_env_var};
 
 // Re-exports from util module with documentation (from your branch)
 /// Maximum number of times to poll for an expected file.
diff --git a/tests/cucumber.rs b/tests/cucumber.rs
index 5def2b1..b8ca602 100644
--- a/tests/cucumber.rs
+++ b/tests/cucumber.rs
@@ -4,7 +4,6 @@
 //! parallel.
 
 mod steps;
-mod support;
 mod util;
 use cucumber::World as _;
 use steps::{
diff --git a/tests/steps/config_steps.rs b/tests/steps/config_steps.rs
index a03fbab..f6e43bf 100644
--- a/tests/steps/config_steps.rs
+++ b/tests/steps/config_steps.rs
@@ -5,8 +5,8 @@ use std::fs;
 use std::path::PathBuf;
 use tempfile::TempDir;
 
-use crate::support::env_guard::{EnvVarGuard, remove_env_var};
 use comenqd::config::Config;
+use test_support::env_guard::{EnvVarGuard, remove_env_var};
 
 #[derive(Debug, Default, World)]
 pub struct ConfigWorld {
diff --git a/tests/steps/release_steps.rs b/tests/steps/release_steps.rs
index 5726318..d9df276 100644
--- a/tests/steps/release_steps.rs
+++ b/tests/steps/release_steps.rs
@@ -3,6 +3,7 @@
 
 use comenq_lib::workflow::uses_goreleaser as workflow_uses_goreleaser;
 use cucumber::{World, given, then, when};
+use regex::Regex;
 use serde_yaml::Value;
 use std::fs;
 
@@ -40,8 +41,11 @@ fn triggers_on_tags(world: &mut ReleaseWorld) {
         .expect("tags")
         .as_sequence()
         .expect("sequence");
+    let pattern = Regex::new(r"^v\*\.\*\.\*$").expect("compile regex");
     assert!(
         tags.iter()
-            .any(|t| t.as_str() == Some("v[0-9]*.[0-9]*.[0-9]*"))
+            .filter_map(|t| t.as_str())
+            .any(|t| pattern.is_match(t)),
+        "missing semantic version tag pattern",
     );
 }
diff --git a/tests/support/mod.rs b/tests/support/mod.rs
deleted file mode 100644
index 0ab1eed..0000000
--- a/tests/support/mod.rs
+++ /dev/null
@@ -1,3 +0,0 @@
-//! Support utilities shared by tests.
-
-pub mod env_guard;