diff --git a/gradle.properties b/gradle.properties
index 6ac528f6..8b7ace2a 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -3,5 +3,7 @@ version=4.0.15-SNAPSHOT
 org.gradle.caching=true
 org.gradle.parallel=true
 
+versionUpgradePolicy=same_minor_version
+
 compatibilityTestPluginVersion=0.0.3
 springFrameworkVersion=6.1.20
\ No newline at end of file
diff --git a/gradle/plugins/conventions-plugin/build.gradle b/gradle/plugins/conventions-plugin/build.gradle
index 96542e2e..fbcf336f 100644
--- a/gradle/plugins/conventions-plugin/build.gradle
+++ b/gradle/plugins/conventions-plugin/build.gradle
@@ -5,12 +5,18 @@ plugins {
 }
 
 repositories {
+	gradlePluginPortal()
 	mavenCentral()
 }
 
 dependencies {
+	api(platform("org.junit:junit-bom:${junitVersion}"))
 	checkstyle("com.puppycrawl.tools:checkstyle:${checkstyle.toolVersion}")
 	checkstyle("io.spring.javaformat:spring-javaformat-checkstyle:${javaFormatVersion}")
+
+	testImplementation("org.junit.jupiter:junit-jupiter")
+	testImplementation("org.assertj:assertj-core:${assertJVersion}")
+	testRuntimeOnly("org.junit.platform:junit-platform-launcher")
 }
 
 gradlePlugin {
@@ -23,5 +29,10 @@ gradlePlugin {
 }
 
 dependencies {
+	implementation("com.github.ben-manes:gradle-versions-plugin:$gradleVersionsPluginVersion")
 	implementation("io.spring.javaformat:spring-javaformat-gradle-plugin:$javaFormatVersion")
 }
+
+tasks.named('test') {
+	useJUnitPlatform()
+}
diff --git a/gradle/plugins/conventions-plugin/src/main/java/org/springframework/ws/gradle/conventions/JavaPluginConventions.java b/gradle/plugins/conventions-plugin/src/main/java/org/springframework/ws/gradle/conventions/JavaPluginConventions.java
index d1031f07..0e8a0f84 100644
--- a/gradle/plugins/conventions-plugin/src/main/java/org/springframework/ws/gradle/conventions/JavaPluginConventions.java
+++ b/gradle/plugins/conventions-plugin/src/main/java/org/springframework/ws/gradle/conventions/JavaPluginConventions.java
@@ -50,6 +50,7 @@ class JavaPluginConventions {
 		enableSourceAndJavadocJars(java);
 		configureSourceAndTargetCompatibility(java);
 		configureDependencyManagement(project);
+		configureVersionUpgradePolicy(project);
 		configureJarManifest(project);
 		configureToolchain(project, java);
 		configureJavadocClasspath(project, java);
@@ -97,6 +98,10 @@ class JavaPluginConventions {
 			.add(dependencies.enforcedPlatform(dependencies.project(Map.of("path", ":spring-ws-platform"))));
 	}
 
+	private void configureVersionUpgradePolicy(Project project) {
+		new VersionUpgradePluginConventions().apply(project);
+	}
+
 	private void configureJarManifest(Project project) {
 		project.getTasks()
 			.named("jar", Jar.class,
diff --git a/gradle/plugins/conventions-plugin/src/main/java/org/springframework/ws/gradle/conventions/VersionUpgradePluginConventions.java b/gradle/plugins/conventions-plugin/src/main/java/org/springframework/ws/gradle/conventions/VersionUpgradePluginConventions.java
new file mode 100644
index 00000000..1e303cc9
--- /dev/null
+++ b/gradle/plugins/conventions-plugin/src/main/java/org/springframework/ws/gradle/conventions/VersionUpgradePluginConventions.java
@@ -0,0 +1,60 @@
+/*
+ * Copyright 2005-2025 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.ws.gradle.conventions;
+
+import java.util.Locale;
+
+import com.github.benmanes.gradle.versions.VersionsPlugin;
+import com.github.benmanes.gradle.versions.updates.DependencyUpdatesTask;
+import org.gradle.api.Project;
+
+import org.springframework.ws.gradle.conventions.support.Version;
+import org.springframework.ws.gradle.conventions.support.VersionUpgradePolicy;
+
+/**
+ * Conventions for {@code gradle-versions-plugin}.
+ *
+ * @author Stephane Nicoll
+ */
+class VersionUpgradePluginConventions {
+
+	void apply(Project project) {
+		project.getPlugins().apply(VersionsPlugin.class);
+		project.getTasks().withType(DependencyUpdatesTask.class, (updateTask) -> {
+			updateTask.setFilterConfigurations((configuration) -> !(configuration.getName().contains("_")
+					&& configuration.getName().endsWith("+")));
+			VersionUpgradePolicy upgradePolicy = getUpgradePolicy(project);
+			updateTask.rejectVersionIf((candidate) -> {
+				Version currentVersion = Version.from(candidate.getCurrentVersion());
+				Version candidateVersion = Version.from(candidate.getCandidate().getVersion());
+				return !upgradePolicy.isCandidate(currentVersion, candidateVersion);
+			});
+		});
+	}
+
+	private VersionUpgradePolicy getUpgradePolicy(Project project) {
+		Object versionUpgradePolicy = project.findProperty("versionUpgradePolicy");
+		if (versionUpgradePolicy == null) {
+			return VersionUpgradePolicy.SAME_MINOR_VERSION;
+		}
+		else if (versionUpgradePolicy instanceof String value) {
+			return VersionUpgradePolicy.valueOf(value.toUpperCase(Locale.ROOT));
+		}
+		throw new IllegalArgumentException("Unsupported version upgrade policy: " + versionUpgradePolicy);
+	}
+
+}
diff --git a/gradle/plugins/conventions-plugin/src/main/java/org/springframework/ws/gradle/conventions/support/Version.java b/gradle/plugins/conventions-plugin/src/main/java/org/springframework/ws/gradle/conventions/support/Version.java
new file mode 100644
index 00000000..0be97f4b
--- /dev/null
+++ b/gradle/plugins/conventions-plugin/src/main/java/org/springframework/ws/gradle/conventions/support/Version.java
@@ -0,0 +1,171 @@
+/*
+ * Copyright 2012-2023 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.ws.gradle.conventions.support;
+
+import java.io.Serializable;
+import java.util.Objects;
+
+/**
+ * ë A version representation that provides a major and minor identifier. For instance,
+ * {@code 1.2.5} would have a {@code major} of "1" and {@code minor} of "1.2".
+ *
+ * @author Stephane Nicoll
+ */
+public class Version {
+
+	private final String id;
+
+	private final String major;
+
+	private final String minor;
+
+	private final Qualifier qualifier;
+
+	private final Parts parts;
+
+	Version(String id, String major, String minor, Qualifier qualifer, Parts parts) {
+		this.id = id;
+		this.major = major;
+		this.minor = minor;
+		this.qualifier = qualifer;
+		this.parts = parts;
+	}
+
+	public static Version from(String version) {
+		return VersionParser.safeParse(version);
+	}
+
+	/**
+	 * Return the version.
+	 * @return the version
+	 */
+	public String getId() {
+		return this.id;
+	}
+
+	/**
+	 * Return the major qualifier or {@code null}.
+	 * @return the major
+	 */
+	public String getMajor() {
+		return this.major;
+	}
+
+	/**
+	 * Return the minor qualifier or {@code null}.
+	 * @return the minor
+	 */
+	public String getMinor() {
+		return this.minor;
+	}
+
+	/**
+	 * Return tue {@link Qualifier} or {@code null}.
+	 * @return the qualifier
+	 */
+	public Qualifier getQualifier() {
+		return this.qualifier;
+	}
+
+	/**
+	 * Return the elements of the version, if any. Does not apply for non-numeric version
+	 * such as a release train.
+	 * @return the parts
+	 */
+	public Parts getParts() {
+		return this.parts;
+	}
+
+	/**
+	 * Returns whether this version has the same major and minor versions as the
+	 * {@code other} version.
+	 * @param other the version to test
+	 * @return {@code true} if this version has the same major and minor, otherwise
+	 * {@code false}
+	 */
+	public boolean isSameMinor(Version other) {
+		return isSameMajor(other) && Objects.equals(this.parts.minor, other.parts.minor);
+	}
+
+	/**
+	 * Returns whether this version has the same major version as the {@code other}
+	 * version.
+	 * @param other the version to test
+	 * @return {@code true} if this version has the same major, otherwise {@code false}
+	 */
+	public boolean isSameMajor(Version other) {
+		return (this.parts != null && other.parts != null && Objects.equals(this.parts.major, other.parts.major));
+	}
+
+	@Override
+	public boolean equals(Object o) {
+		if (this == o) {
+			return true;
+		}
+		if (!(o instanceof Version version)) {
+			return false;
+		}
+		return Objects.equals(this.id, version.id);
+	}
+
+	@Override
+	public int hashCode() {
+		return Objects.hashCode(this.id);
+	}
+
+	@Override
+	public String toString() {
+		return this.id;
+	}
+
+	public record Parts(Integer major, Integer minor, Integer patch, Integer hotPatch) {
+
+		/**
+		 * Return a unique number for this instance that allows to compare two versions.
+		 * @return a comparable number
+		 */
+		public long toNumber() {
+			String paddedValue = paddedNumber(this.major) + paddedNumber(this.minor) + paddedNumber(this.patch)
+					+ paddedNumber(this.hotPatch);
+			return Long.parseLong(paddedValue);
+		}
+
+		private String paddedNumber(Integer number) {
+			if (number != null) {
+				return String.format("%02d", number);
+			}
+			return "00";
+		}
+
+	}
+
+	/**
+	 * A version qualifier.
+	 *
+	 * @param id the identifier of the qualifier
+	 * @param version the version or {@code null}
+	 * @param separator the separator
+	 */
+	public record Qualifier(String id, Integer version, String separator) implements Serializable {
+
+		public Qualifier(String id) {
+			this(id, null, ".");
+		}
+
+	}
+
+}
diff --git a/gradle/plugins/conventions-plugin/src/main/java/org/springframework/ws/gradle/conventions/support/VersionParser.java b/gradle/plugins/conventions-plugin/src/main/java/org/springframework/ws/gradle/conventions/support/VersionParser.java
new file mode 100644
index 00000000..1b903b19
--- /dev/null
+++ b/gradle/plugins/conventions-plugin/src/main/java/org/springframework/ws/gradle/conventions/support/VersionParser.java
@@ -0,0 +1,151 @@
+/*
+ * Copyright 2012-2023 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.ws.gradle.conventions.support;
+
+import java.net.URLDecoder;
+import java.nio.charset.StandardCharsets;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+import org.springframework.ws.gradle.conventions.support.Version.Parts;
+import org.springframework.ws.gradle.conventions.support.Version.Qualifier;
+
+/**
+ * Parse version text to a {@link Version}.
+ *
+ * @author Stephane Nicoll
+ */
+abstract class VersionParser {
+
+	private static final Pattern VERSION_REGEX = Pattern
+		.compile("^(\\d+)\\.(\\d+)\\.(\\d+)(\\.\\d+)?(?:([.|-])([^0-9]+)(\\d+)?)?$");
+
+	private static final Pattern RELEASE_TRAIN_REGEX = Pattern.compile("([A-Za-z]*)(_|-|.)([A-Za-z0-9_-]*)");
+
+	private static final Pattern NON_STANDARD_VERSION_REGEX = Pattern
+		.compile("^(\\d+)\\.(\\d+)(?:[.|-]([^0-9]+)(\\d+)?)?$");
+
+	/**
+	 * Safely parse the specified {@code text} into a version.
+	 * @param text a version text
+	 * @return a {@link Version} (never {@code null})
+	 */
+	static Version safeParse(String text) {
+		String versionText = cleanVersion(text);
+		Version standardVersion = parseStandardVersion(versionText);
+		if (standardVersion != null) {
+			return standardVersion;
+		}
+		Version releaseTrainVersion = parseReleaseTrain(versionText);
+		if (releaseTrainVersion != null) {
+			return releaseTrainVersion;
+		}
+		Version nonStandardVersion = parseNonStandardVersion(versionText);
+		if (nonStandardVersion != null) {
+			return nonStandardVersion;
+		}
+		return new Version(versionText, null, null, null, null);
+	}
+
+	private static Version parseStandardVersion(String text) {
+		Matcher matcher = VERSION_REGEX.matcher(text);
+		if (!matcher.matches()) {
+			return null;
+		}
+		String major = matcher.group(1);
+		String minor = matcher.group(2);
+		if (major != null) {
+			// This can be calVer, semVer or our legacy format
+			if (minor != null && major.length() == 4 && Integer.parseInt(major) > 1970) {
+				String releaseTrainName = String.format("%s.%s", major, minor);
+				return new Version(text, null, releaseTrainName, parseQualifier(matcher),
+						new Parts(safeInteger(major), safeInteger(minor), safeInteger(matcher.group(3)), null));
+			}
+			String patch = matcher.group(3);
+			String hotPatch = matcher.group(4);
+			if (hotPatch != null) {
+				hotPatch = hotPatch.substring(1); // Remove .
+			}
+			return createVersion(text, major, minor, parseQualifier(matcher),
+					new Parts(safeInteger(major), safeInteger(minor), safeInteger(patch), safeInteger(hotPatch)));
+		}
+		return null;
+	}
+
+	private static Version parseReleaseTrain(String text) {
+		Matcher matcher = RELEASE_TRAIN_REGEX.matcher(text);
+		if (!matcher.matches()) {
+			return null;
+		}
+		String name = matcher.group(1);
+		return new Version(text, null, name, null, null);
+	}
+
+	private static Version parseNonStandardVersion(String text) {
+		Matcher matcher = NON_STANDARD_VERSION_REGEX.matcher(text.trim());
+		if (!matcher.matches()) {
+			return null;
+		}
+		String major = matcher.group(1);
+		String minor = matcher.group(2);
+		return createVersion(text, major, minor, null, new Parts(safeInteger(major), safeInteger(minor), null, null));
+	}
+
+	private static Qualifier parseQualifier(Matcher matcher) {
+		String qualifierSeparator = matcher.group(5);
+		String qualifierId = matcher.group(6);
+		if (hasText(qualifierSeparator) && hasText(qualifierId)) {
+			String versionString = matcher.group(7);
+			return new Qualifier(qualifierId, (versionString != null) ? Integer.valueOf(versionString) : null,
+					qualifierSeparator);
+		}
+		return null;
+	}
+
+	private static Version createVersion(String text, String major, String minor, Qualifier qualifier, Parts parts) {
+		String minorText = (minor != null) ? String.format("%s.%s", major, minor) : null;
+		return new Version(text, major, minorText, qualifier, parts);
+	}
+
+	private static String cleanVersion(String version) {
+		try {
+			String cleanVersion = URLDecoder.decode(version, StandardCharsets.UTF_8).trim();
+			int i = cleanVersion.lastIndexOf("?");
+			return (i != -1) ? cleanVersion.substring(i + 1) : cleanVersion;
+		}
+		catch (Exception ex) {
+			return version;
+		}
+	}
+
+	private static Integer safeInteger(String text) {
+		try {
+			if (text != null) {
+				return Integer.valueOf(text);
+			}
+		}
+		catch (NumberFormatException ex) {
+			// ignore
+		}
+		return null;
+	}
+
+	private static boolean hasText(String value) {
+		return value != null && !value.isEmpty();
+	}
+
+}
diff --git a/gradle/plugins/conventions-plugin/src/main/java/org/springframework/ws/gradle/conventions/support/VersionUpgradePolicy.java b/gradle/plugins/conventions-plugin/src/main/java/org/springframework/ws/gradle/conventions/support/VersionUpgradePolicy.java
new file mode 100644
index 00000000..f3b81aee
--- /dev/null
+++ b/gradle/plugins/conventions-plugin/src/main/java/org/springframework/ws/gradle/conventions/support/VersionUpgradePolicy.java
@@ -0,0 +1,61 @@
+/*
+ * Copyright 2005-2025 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.ws.gradle.conventions.support;
+
+import java.util.function.BiPredicate;
+
+/**
+ * Policies used to decide which versions are considered as possible upgrades.
+ *
+ * @author Stephane Nicoll
+ */
+public enum VersionUpgradePolicy {
+
+	/**
+	 * Any version.
+	 */
+	ANY((current, candidate) -> true),
+
+	/**
+	 * Minor versions of the current major version.
+	 */
+	SAME_MAJOR_VERSION(Version::isSameMajor),
+
+	/**
+	 * Patch versions of the current minor version.
+	 */
+	SAME_MINOR_VERSION(Version::isSameMinor);
+
+	private final BiPredicate<Version, Version> delegate;
+
+	VersionUpgradePolicy(BiPredicate<Version, Version> delegate) {
+		this.delegate = delegate;
+	}
+
+	/**
+	 * Specify if the {@code candidate} version is a valid upgrade according to this
+	 * policy.
+	 * @param current the current version
+	 * @param candidate the candidate version
+	 * @return {@code true} if the dependency can be upgraded to the {@code candidate}
+	 * version
+	 */
+	public boolean isCandidate(Version current, Version candidate) {
+		return this.delegate.test(current, candidate);
+	}
+
+}
diff --git a/gradle/plugins/conventions-plugin/src/main/java/org/springframework/ws/gradle/conventions/support/package-info.java b/gradle/plugins/conventions-plugin/src/main/java/org/springframework/ws/gradle/conventions/support/package-info.java
new file mode 100644
index 00000000..4eae86f4
--- /dev/null
+++ b/gradle/plugins/conventions-plugin/src/main/java/org/springframework/ws/gradle/conventions/support/package-info.java
@@ -0,0 +1,20 @@
+/*
+ * Copyright 2005-2025 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * Support classes for conventions plugin.
+ */
+package org.springframework.ws.gradle.conventions.support;
diff --git a/gradle/plugins/conventions-plugin/src/test/java/org/springframework/ws/gradle/conventions/support/VersionParserTests.java b/gradle/plugins/conventions-plugin/src/test/java/org/springframework/ws/gradle/conventions/support/VersionParserTests.java
new file mode 100644
index 00000000..1ed77847
--- /dev/null
+++ b/gradle/plugins/conventions-plugin/src/test/java/org/springframework/ws/gradle/conventions/support/VersionParserTests.java
@@ -0,0 +1,172 @@
+/*
+ * Copyright 2012-2023 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.ws.gradle.conventions.support;
+
+import java.util.function.Consumer;
+
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.params.ParameterizedTest;
+import org.junit.jupiter.params.provider.CsvSource;
+
+import org.springframework.ws.gradle.conventions.support.Version.Parts;
+import org.springframework.ws.gradle.conventions.support.Version.Qualifier;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+/**
+ * Tests for {@link VersionParser}.
+ *
+ * @author Stephane Nicoll
+ */
+class VersionParserTests {
+
+	@Test
+	void parseSimpleVersion() {
+		assertVersion("1.2.3.RELEASE", "1", "1.2", new Qualifier("RELEASE"), new Parts(1, 2, 3, null));
+	}
+
+	@Test
+	void parseVersionWithDashedQualifier() {
+		assertVersion("2.0.0-M1", "2", "2.0", new Qualifier("M", 1, "-"), new Parts(2, 0, 0, null));
+	}
+
+	@Test
+	void parseNoQualifier() {
+		assertVersion("2.1.4", "2", "2.1", null, new Parts(2, 1, 4, null));
+	}
+
+	@Test
+	void parseCommercialRevision() {
+		assertVersion("2.7.19.1", "2", "2.7", null, new Parts(2, 7, 19, 1));
+	}
+
+	@Test
+	void parseWithQuestionMarkPrefix() {
+		assertVersion("?2.1.4", "2.1.4", "2", "2.1", null, new Parts(2, 1, 4, null));
+	}
+
+	@Test
+	void parseWithEncodedVersion() {
+		assertVersion("4%2E1%2E6%2ERELEASE", "4.1.6.RELEASE", "4", "4.1", new Qualifier("RELEASE", null, "."),
+				new Parts(4, 1, 6, null));
+	}
+
+	@Test
+	void parseWithMajorMinorOnly() {
+		assertVersion("2.0", "2", "2.0", null, new Parts(2, 0, null, null));
+	}
+
+	@Test
+	void parseReleaseTrain() {
+		assertVersion("Gosling-SR1", null, "Gosling", null);
+	}
+
+	@Test
+	void parseCalVer() {
+		assertVersion("2000.0.1", null, "2000.0", null, new Parts(2000, 0, 1, null));
+	}
+
+	@Test
+	void parseCalVerWithQualifier() {
+		assertVersion("2020.1.0-RC1", null, "2020.1", new Qualifier("RC", 1, "-"), new Parts(2020, 1, 0, null));
+	}
+
+	@Test
+	void parseVersionProperty() {
+		assertVersion("${spring.version}", null, null, null);
+	}
+
+	@Test
+	void versionNumberWithMajorMinor() {
+		assertThat(new Parts(2, 12, null, null).toNumber()).isEqualTo(2120000);
+	}
+
+	@Test
+	void versionNumberWithMajorMinorPatch() {
+		assertThat(new Parts(2, 12, 5, null).toNumber()).isEqualTo(2120500);
+	}
+
+	@Test
+	void versionNumberWithMajorMinorPatchHotPatch() {
+		assertThat(new Parts(2, 12, 5, 1).toNumber()).isEqualTo(2120501);
+	}
+
+	@ParameterizedTest
+	@CsvSource(textBlock = """
+			3.4.5,3.6.0
+			3.4.0-M1,3.5.0-M2
+			2020.1.0,2020.2.0
+			3.4.5,3.4.5
+			""")
+	void isSameMajorTrue(String left, String right) {
+		assertThat(Version.from(left).isSameMajor(Version.from(right))).isTrue();
+	}
+
+	@ParameterizedTest
+	@CsvSource(textBlock = """
+			3.4.5,2.4.5
+			3.4.0-M1,2.4.0-M1
+			2020.1.0,2021.1.0
+			""")
+	void isSameMajorFalse(String left, String right) {
+		assertThat(Version.from(left).isSameMajor(Version.from(right))).isFalse();
+	}
+
+	@ParameterizedTest
+	@CsvSource(textBlock = """
+			3.4.5,3.4.9
+			3.4.0-M1,3.4.0-M2
+			2020.1.0,2020.1.9
+			3.4.5,3.4.5
+			""")
+	void isSameMinorTrue(String left, String right) {
+		assertThat(Version.from(left).isSameMinor(Version.from(right))).isTrue();
+	}
+
+	@ParameterizedTest
+	@CsvSource(textBlock = """
+			3.4.5,3.3.9
+			3.4.0-M1,3.5.0-M1
+			2020.1.0,2020.2.0
+			""")
+	void isSameMinorFalse(String left, String right) {
+		assertThat(Version.from(left).isSameMinor(Version.from(right))).isFalse();
+	}
+
+	private void assertVersion(String text, String major, String minor, Qualifier qualifier) {
+		assertVersion(text, major, minor, qualifier, null);
+	}
+
+	private void assertVersion(String text, String major, String minor, Qualifier qualifier, Parts parts) {
+		assertVersion(text, text, major, minor, qualifier, parts);
+	}
+
+	private void assertVersion(String text, String id, String major, String minor, Qualifier qualifier, Parts parts) {
+		assertThat(VersionParser.safeParse(text)).satisfies(isVersion(id, major, minor, qualifier, parts));
+	}
+
+	private Consumer<Version> isVersion(String id, String major, String minor, Qualifier qualifier, Parts parts) {
+		return (version) -> {
+			assertThat(version.getId()).isEqualTo(id);
+			assertThat(version.getMajor()).isEqualTo(major);
+			assertThat(version.getMinor()).isEqualTo(minor);
+			assertThat(version.getQualifier()).isEqualTo(qualifier);
+			assertThat(version.getParts()).isEqualTo(parts);
+		};
+	}
+
+}
diff --git a/gradle/plugins/gradle.properties b/gradle/plugins/gradle.properties
index e1c16381..b80bde94 100644
--- a/gradle/plugins/gradle.properties
+++ b/gradle/plugins/gradle.properties
@@ -1 +1,4 @@
+assertJVersion=3.25.3
+gradleVersionsPluginVersion=0.52.0
 javaFormatVersion=0.0.45
+junitVersion=5.11.0