diff --git a/dev-infra/build-worker.js b/dev-infra/build-worker.js
index 2939ff9538..aad3843510 100644
--- a/dev-infra/build-worker.js
+++ b/dev-infra/build-worker.js
@@ -262,6 +262,16 @@ var GitClient = /** @class */ (function () {
         }
         return new semver.SemVer(latestTag, semVerOptions);
     };
+    /** Retrieves the git tag matching the provided SemVer, if it exists. */
+    GitClient.prototype.getMatchingTagForSemver = function (semver$1) {
+        var semVerOptions = { loose: true };
+        var tags = this.runGraceful(['tag', '--sort=-committerdate', '--merged']).stdout.split('\n');
+        var matchingTag = tags.find(function (tag) { var _a; return ((_a = semver.parse(tag, semVerOptions)) === null || _a === void 0 ? void 0 : _a.compare(semver$1)) === 0; });
+        if (matchingTag === undefined) {
+            throw new Error("Unable to find a tag for the version: \"" + semver$1.format() + "\"");
+        }
+        return matchingTag;
+    };
     /** Retrieve a list of all files in the repository changed since the provided shaOrRef. */
     GitClient.prototype.allChangesFilesSince = function (shaOrRef) {
         if (shaOrRef === void 0) { shaOrRef = 'HEAD'; }
diff --git a/dev-infra/ng-dev.js b/dev-infra/ng-dev.js
index b849312806..7b7c2fb3d8 100755
--- a/dev-infra/ng-dev.js
+++ b/dev-infra/ng-dev.js
@@ -434,6 +434,16 @@ var GitClient = /** @class */ (function () {
         }
         return new semver.SemVer(latestTag, semVerOptions);
     };
+    /** Retrieves the git tag matching the provided SemVer, if it exists. */
+    GitClient.prototype.getMatchingTagForSemver = function (semver$1) {
+        var semVerOptions = { loose: true };
+        var tags = this.runGraceful(['tag', '--sort=-committerdate', '--merged']).stdout.split('\n');
+        var matchingTag = tags.find(function (tag) { var _a; return ((_a = semver.parse(tag, semVerOptions)) === null || _a === void 0 ? void 0 : _a.compare(semver$1)) === 0; });
+        if (matchingTag === undefined) {
+            throw new Error("Unable to find a tag for the version: \"" + semver$1.format() + "\"");
+        }
+        return matchingTag;
+    };
     /** Retrieve a list of all files in the repository changed since the provided shaOrRef. */
     GitClient.prototype.allChangesFilesSince = function (shaOrRef) {
         if (shaOrRef === void 0) { shaOrRef = 'HEAD'; }
@@ -6423,6 +6433,14 @@ class ReleaseAction {
     static isActive(_trains, _config) {
         throw Error('Not implemented.');
     }
+    /** Retrieves the version in the project top-level `package.json` file. */
+    getProjectVersion() {
+        return tslib.__awaiter(this, void 0, void 0, function* () {
+            const pkgJsonPath = path.join(this.projectDir, packageJsonPath);
+            const pkgJson = JSON.parse(yield fs.promises.readFile(pkgJsonPath, 'utf8'));
+            return new semver.SemVer(pkgJson.version);
+        });
+    }
     /** Updates the version in the project top-level `package.json` file. */
     updateProjectVersion(newVersion) {
         return tslib.__awaiter(this, void 0, void 0, function* () {
@@ -6676,7 +6694,12 @@ class ReleaseAction {
      */
     stageVersionForBranchAndCreatePullRequest(newVersion, pullRequestBaseBranch) {
         return tslib.__awaiter(this, void 0, void 0, function* () {
-            const releaseNotes = yield ReleaseNotes.fromRange(newVersion, this.git.getLatestSemverTag().format(), 'HEAD');
+            /**
+             * The current version of the project for the branch from the root package.json. This must be
+             * retrieved prior to updating the project version.
+             */
+            const currentVersion = this.git.getMatchingTagForSemver(yield this.getProjectVersion());
+            const releaseNotes = yield ReleaseNotes.fromRange(newVersion, currentVersion, 'HEAD');
             yield this.updateProjectVersion(newVersion);
             yield this.prependReleaseNotesToChangelog(releaseNotes);
             yield this.waitForEditsAndCreateReleaseCommit(newVersion);
diff --git a/dev-infra/release/publish/actions.ts b/dev-infra/release/publish/actions.ts
index e040ef4c2a..aa312a9a96 100644
--- a/dev-infra/release/publish/actions.ts
+++ b/dev-infra/release/publish/actions.ts
@@ -80,6 +80,14 @@ export abstract class ReleaseAction {
       protected active: ActiveReleaseTrains, protected git: AuthenticatedGitClient,
       protected config: ReleaseConfig, protected projectDir: string) {}
 
+  /** Retrieves the version in the project top-level `package.json` file. */
+  private async getProjectVersion() {
+    const pkgJsonPath = join(this.projectDir, packageJsonPath);
+    const pkgJson =
+        JSON.parse(await fs.readFile(pkgJsonPath, 'utf8')) as {version: string, [key: string]: any};
+    return new semver.SemVer(pkgJson.version);
+  }
+
   /** Updates the version in the project top-level `package.json` file. */
   protected async updateProjectVersion(newVersion: semver.SemVer) {
     const pkgJsonPath = join(this.projectDir, packageJsonPath);
@@ -351,8 +359,12 @@ export abstract class ReleaseAction {
   protected async stageVersionForBranchAndCreatePullRequest(
       newVersion: semver.SemVer, pullRequestBaseBranch: string):
       Promise<{releaseNotes: ReleaseNotes, pullRequest: PullRequest}> {
-    const releaseNotes =
-        await ReleaseNotes.fromRange(newVersion, this.git.getLatestSemverTag().format(), 'HEAD');
+    /**
+     * The current version of the project for the branch from the root package.json. This must be
+     * retrieved prior to updating the project version.
+     */
+    const currentVersion = this.git.getMatchingTagForSemver(await this.getProjectVersion());
+    const releaseNotes = await ReleaseNotes.fromRange(newVersion, currentVersion, 'HEAD');
     await this.updateProjectVersion(newVersion);
     await this.prependReleaseNotesToChangelog(releaseNotes);
     await this.waitForEditsAndCreateReleaseCommit(newVersion);
diff --git a/dev-infra/release/publish/test/test-utils.ts b/dev-infra/release/publish/test/test-utils.ts
index ddbc36e847..3681e3c2c0 100644
--- a/dev-infra/release/publish/test/test-utils.ts
+++ b/dev-infra/release/publish/test/test-utils.ts
@@ -108,7 +108,7 @@ export function setupReleaseActionForTesting<T extends ReleaseAction>(
   // Create an empty changelog and a `package.json` file so that file system
   // interactions with the project directory do not cause exceptions.
   writeFileSync(join(testTmpDir, 'CHANGELOG.md'), 'Existing changelog');
-  writeFileSync(join(testTmpDir, 'package.json'), JSON.stringify({version: 'unknown'}));
+  writeFileSync(join(testTmpDir, 'package.json'), JSON.stringify({version: '0.0.0'}));
 
   // Override the default pull request wait interval to a number of milliseconds that can be
   // awaited in Jasmine tests. The default interval of 10sec is too large and causes a timeout.
diff --git a/dev-infra/utils/git/git-client.ts b/dev-infra/utils/git/git-client.ts
index 2faef84805..eab11db987 100644
--- a/dev-infra/utils/git/git-client.ts
+++ b/dev-infra/utils/git/git-client.ts
@@ -162,6 +162,19 @@ export class GitClient {
     return new SemVer(latestTag, semVerOptions);
   }
 
+  /** Retrieves the git tag matching the provided SemVer, if it exists. */
+  getMatchingTagForSemver(semver: SemVer): string {
+    const semVerOptions: SemVerOptions = {loose: true};
+    const tags = this.runGraceful(['tag', '--sort=-committerdate', '--merged']).stdout.split('\n');
+    const matchingTag =
+        tags.find((tag: string) => parse(tag, semVerOptions)?.compare(semver) === 0);
+
+    if (matchingTag === undefined) {
+      throw new Error(`Unable to find a tag for the version: "${semver.format()}"`);
+    }
+    return matchingTag;
+  }
+
   /** Retrieve a list of all files in the repository changed since the provided shaOrRef. */
   allChangesFilesSince(shaOrRef = 'HEAD'): string[] {
     return Array.from(new Set([
diff --git a/dev-infra/utils/testing/virtual-git-client.ts b/dev-infra/utils/testing/virtual-git-client.ts
index 0042d6e409..17202127c2 100644
--- a/dev-infra/utils/testing/virtual-git-client.ts
+++ b/dev-infra/utils/testing/virtual-git-client.ts
@@ -82,6 +82,14 @@ export class VirtualGitClient extends AuthenticatedGitClient {
     return new SemVer('0.0.0');
   }
 
+  /**
+   * Override the actual GitClient getLatestSemverTag, as an actual tags cannot be checked during
+   * testing, return back the SemVer version as the tag.
+   */
+  override getMatchingTagForSemver(semver: SemVer) {
+    return semver.format();
+  }
+
   /** Override for the actual Git client command execution. */
   override runGraceful(args: string[], options: SpawnSyncOptions = {}): SpawnSyncReturns<string> {
     const [command, ...rawArgs] = args;