diff --git a/ng-dev/caretaker/check/ci.spec.ts b/ng-dev/caretaker/check/ci.spec.ts
index fb1041e3a..adf71aac6 100644
--- a/ng-dev/caretaker/check/ci.spec.ts
+++ b/ng-dev/caretaker/check/ci.spec.ts
@@ -89,7 +89,8 @@ describe('CiModule', () => {
         status: 'failed',
       },
     ]);
-    fetchActiveReleaseTrainsSpy.and.resolveTo([]);
+    const trains = buildMockActiveReleaseTrains(true);
+    fetchActiveReleaseTrainsSpy.and.resolveTo(trains);
 
     const module = new CiModule({caretaker: {}, ...mockNgDevConfig});
     Object.defineProperty(module, 'data', {value: fakeData});
@@ -113,9 +114,9 @@ function buildMockActiveReleaseTrains(withRc: boolean): versioning.ActiveRelease
     isMajor: false,
     version: new SemVer('0.0.0'),
   };
-  return {
+  return new versioning.ActiveReleaseTrains({
     releaseCandidate: withRc ? {branchName: 'rc-branch', ...baseResult} : null,
     latest: {branchName: 'latest-branch', ...baseResult},
     next: {branchName: 'next-branch', ...baseResult},
-  };
+  });
 }
diff --git a/ng-dev/caretaker/check/ci.ts b/ng-dev/caretaker/check/ci.ts
index 37e3f7980..7ef92ed07 100644
--- a/ng-dev/caretaker/check/ci.ts
+++ b/ng-dev/caretaker/check/ci.ts
@@ -36,9 +36,8 @@ export class CiModule extends BaseModule<CiData> {
       ...this.git.remoteConfig,
       nextBranchName,
     };
-    const releaseTrains = await fetchActiveReleaseTrains(repo);
-
-    const ciResultPromises = Object.entries(releaseTrains).map(
+    const {latest, next, releaseCandidate} = await fetchActiveReleaseTrains(repo);
+    const ciResultPromises = Object.entries({releaseCandidate, latest, next}).map(
       async ([trainName, train]: [string, ReleaseTrain | null]) => {
         if (train === null) {
           return {
diff --git a/ng-dev/pr/common/targeting/labels.ts b/ng-dev/pr/common/targeting/labels.ts
index 82e54cee3..007cdee69 100644
--- a/ng-dev/pr/common/targeting/labels.ts
+++ b/ng-dev/pr/common/targeting/labels.ts
@@ -8,7 +8,7 @@
 
 import {assertValidReleaseConfig, ReleaseConfig} from '../../../release/config/index';
 import {
-  fetchActiveReleaseTrains,
+  ActiveReleaseTrains,
   getNextBranchName,
   isVersionBranch,
   ReleaseRepoWithApi,
@@ -38,6 +38,7 @@ import {debug} from '../../../utils/console';
  *   NPM version data when LTS version branches are validated.
  */
 export async function getTargetLabelsForActiveReleaseTrains(
+  {latest, releaseCandidate, next}: ActiveReleaseTrains,
   api: GithubClient,
   config: Partial<{github: GithubConfig; release: ReleaseConfig}>,
 ): Promise<TargetLabel[]> {
@@ -50,7 +51,6 @@ export async function getTargetLabelsForActiveReleaseTrains(
     nextBranchName,
     api,
   };
-  const {latest, releaseCandidate, next} = await fetchActiveReleaseTrains(repo);
 
   const targetLabels: TargetLabel[] = [
     {
diff --git a/ng-dev/pr/common/targeting/target-label.ts b/ng-dev/pr/common/targeting/target-label.ts
index 0c8bb70f9..dab85043b 100644
--- a/ng-dev/pr/common/targeting/target-label.ts
+++ b/ng-dev/pr/common/targeting/target-label.ts
@@ -13,6 +13,7 @@ import {Commit} from '../../../commit-message/parse';
 import {assertChangesAllowForTargetLabel} from '../validation/validations';
 import {PullRequestFailure} from '../validation/failures';
 import {GithubClient} from '../../../utils/git/github';
+import {fetchActiveReleaseTrains} from '../../../release/versioning';
 
 /**
  * Enum capturing available target label names in the Angular organization. A target
@@ -111,7 +112,14 @@ export async function getTargetBranchesForPullRequest(
   // can lazily compute branches for a target label and throw. e.g. if an invalid target
   // label is applied, we want to exit the script gracefully with an error message.
   try {
-    const targetLabels = await getTargetLabelsForActiveReleaseTrains(api, config);
+    const {mainBranchName, name, owner} = config.github;
+    const releaseTrains = await fetchActiveReleaseTrains({
+      name,
+      nextBranchName: mainBranchName,
+      owner,
+      api,
+    });
+    const targetLabels = await getTargetLabelsForActiveReleaseTrains(releaseTrains, api, config);
     const matchingLabel = await getMatchingTargetLabelForPullRequest(
       config.pullRequest,
       labelsOnPullRequest,
@@ -119,7 +127,7 @@ export async function getTargetBranchesForPullRequest(
     );
     const targetBranches = await getBranchesFromTargetLabel(matchingLabel, githubTargetBranch);
 
-    assertChangesAllowForTargetLabel(commits, matchingLabel, config.pullRequest);
+    assertChangesAllowForTargetLabel(commits, matchingLabel, config.pullRequest, releaseTrains);
 
     return targetBranches;
   } catch (error) {
diff --git a/ng-dev/pr/common/validation/validations.ts b/ng-dev/pr/common/validation/validations.ts
index fdae26c34..5256683df 100644
--- a/ng-dev/pr/common/validation/validations.ts
+++ b/ng-dev/pr/common/validation/validations.ts
@@ -16,6 +16,7 @@ import {
   PullRequestFromGithub,
   PullRequestStatus,
 } from '../fetch-pull-request';
+import {ActiveReleaseTrains} from '../../../release/versioning';
 
 /**
  * Assert the commits provided are allowed to merge to the provided target label,
@@ -26,6 +27,7 @@ export function assertChangesAllowForTargetLabel(
   commits: Commit[],
   label: TargetLabel,
   config: PullRequestConfig,
+  releaseTrains: ActiveReleaseTrains,
 ) {
   /**
    * List of commit scopes which are exempted from target label content requirements. i.e. no `feat`
@@ -57,7 +59,7 @@ export function assertChangesAllowForTargetLabel(
       // Deprecations should not be merged into RC, patch or LTS branches.
       // https://semver.org/#spec-item-7. Deprecations should be part of
       // minor releases, or major releases according to SemVer.
-      if (hasDeprecations) {
+      if (hasDeprecations && !releaseTrains.isFeatureFreeze()) {
         throw PullRequestFailure.hasDeprecations(label);
       }
       break;
diff --git a/ng-dev/pr/merge/integration.spec.ts b/ng-dev/pr/merge/integration.spec.ts
index 1a4cfac55..096ae91dd 100644
--- a/ng-dev/pr/merge/integration.spec.ts
+++ b/ng-dev/pr/merge/integration.spec.ts
@@ -20,6 +20,7 @@ import {
 } from '../common/targeting/target-label';
 import {fakeGithubPaginationResponse} from '../../utils/testing/github-interception';
 import {getTargetLabelsForActiveReleaseTrains} from '../common/targeting/labels';
+import {fetchActiveReleaseTrains} from '../../release/versioning';
 
 const API_ENDPOINT = `https://api.github.com`;
 
@@ -103,7 +104,14 @@ describe('default target labels', () => {
     name: string,
     githubTargetBranch = 'master',
   ): Promise<string[] | null> {
-    const targetLabels = await getTargetLabelsForActiveReleaseTrains(api, {
+    const {mainBranchName, name: repoName, owner} = githubConfig;
+    const releaseTrains = await fetchActiveReleaseTrains({
+      name: repoName,
+      nextBranchName: mainBranchName,
+      owner,
+      api,
+    });
+    const targetLabels = await getTargetLabelsForActiveReleaseTrains(releaseTrains, api, {
       github: githubConfig,
       release: releaseConfig,
     });
diff --git a/ng-dev/release/publish/test/common.spec.ts b/ng-dev/release/publish/test/common.spec.ts
index e46aa236e..c114f74ce 100644
--- a/ng-dev/release/publish/test/common.spec.ts
+++ b/ng-dev/release/publish/test/common.spec.ts
@@ -33,18 +33,18 @@ import {getMockGitClient} from '../../../utils/testing';
 import {SandboxGitRepo} from '../../../utils/testing';
 
 describe('common release action logic', () => {
-  const baseReleaseTrains: ActiveReleaseTrains = {
+  const baseReleaseTrains = new ActiveReleaseTrains({
     releaseCandidate: null,
     next: new ReleaseTrain('master', parse('10.1.0-next.0')),
     latest: new ReleaseTrain('10.0.x', parse('10.0.1')),
-  };
+  });
 
   describe('version computation', () => {
-    const testReleaseTrain: ActiveReleaseTrains = {
+    const testReleaseTrain = new ActiveReleaseTrains({
       releaseCandidate: new ReleaseTrain('10.1.x', parse('10.1.0-next.3')),
       next: new ReleaseTrain('master', parse('10.2.0-next.0')),
       latest: new ReleaseTrain('10.0.x', parse('10.0.1')),
-    };
+    });
 
     it('should not modify release train versions and cause invalid other actions', async () => {
       const {releaseConfig, githubConfig} = getTestConfigurationsForAction();
diff --git a/ng-dev/release/publish/test/configure-next-as-major.spec.ts b/ng-dev/release/publish/test/configure-next-as-major.spec.ts
index 5bcdee014..f2753d329 100644
--- a/ng-dev/release/publish/test/configure-next-as-major.spec.ts
+++ b/ng-dev/release/publish/test/configure-next-as-major.spec.ts
@@ -7,6 +7,7 @@
  */
 
 import {getBranchPushMatcher} from '../../../utils/testing';
+import {ActiveReleaseTrains} from '../../versioning';
 import {ReleaseTrain} from '../../versioning/release-trains';
 import {ConfigureNextAsMajorAction} from '../actions/configure-next-as-major';
 import {parse, setupReleaseActionForTesting} from './test-utils/test-utils';
@@ -14,40 +15,49 @@ import {parse, setupReleaseActionForTesting} from './test-utils/test-utils';
 describe('configure next as major action', () => {
   it('should be active if the next branch is for a minor', async () => {
     expect(
-      await ConfigureNextAsMajorAction.isActive({
-        releaseCandidate: null,
-        next: new ReleaseTrain('master', parse('10.1.0-next.3')),
-        latest: new ReleaseTrain('10.0.x', parse('10.0.3')),
-      }),
+      await ConfigureNextAsMajorAction.isActive(
+        new ActiveReleaseTrains({
+          releaseCandidate: null,
+          next: new ReleaseTrain('master', parse('10.1.0-next.3')),
+          latest: new ReleaseTrain('10.0.x', parse('10.0.3')),
+        }),
+      ),
     ).toBe(true);
   });
 
   it('should be active regardless of a feature-freeze/release-candidate train', async () => {
     expect(
-      await ConfigureNextAsMajorAction.isActive({
-        releaseCandidate: new ReleaseTrain('10.1.x', parse('10.1.0-rc.1')),
-        next: new ReleaseTrain('master', parse('10.2.0-next.3')),
-        latest: new ReleaseTrain('10.0.x', parse('10.0.3')),
-      }),
+      await ConfigureNextAsMajorAction.isActive(
+        new ActiveReleaseTrains({
+          releaseCandidate: new ReleaseTrain('10.1.x', parse('10.1.0-rc.1')),
+          next: new ReleaseTrain('master', parse('10.2.0-next.3')),
+          latest: new ReleaseTrain('10.0.x', parse('10.0.3')),
+        }),
+      ),
     ).toBe(true);
   });
 
   it('should not be active if the next branch is for a major', async () => {
     expect(
-      await ConfigureNextAsMajorAction.isActive({
-        releaseCandidate: null,
-        next: new ReleaseTrain('master', parse('11.0.0-next.0')),
-        latest: new ReleaseTrain('10.0.x', parse('10.0.3')),
-      }),
+      await ConfigureNextAsMajorAction.isActive(
+        new ActiveReleaseTrains({
+          releaseCandidate: null,
+          next: new ReleaseTrain('master', parse('11.0.0-next.0')),
+          latest: new ReleaseTrain('10.0.x', parse('10.0.3')),
+        }),
+      ),
     ).toBe(false);
   });
 
   it('should compute proper version and create staging pull request', async () => {
-    const action = setupReleaseActionForTesting(ConfigureNextAsMajorAction, {
-      releaseCandidate: null,
-      next: new ReleaseTrain('master', parse('10.1.0-next.3')),
-      latest: new ReleaseTrain('10.0.x', parse('10.0.2')),
-    });
+    const action = setupReleaseActionForTesting(
+      ConfigureNextAsMajorAction,
+      new ActiveReleaseTrains({
+        releaseCandidate: null,
+        next: new ReleaseTrain('master', parse('10.1.0-next.3')),
+        latest: new ReleaseTrain('10.0.x', parse('10.0.2')),
+      }),
+    );
 
     const {repo, fork, gitClient} = action;
     const expectedVersion = `11.0.0-next.0`;
diff --git a/ng-dev/release/publish/test/cut-lts-patch.spec.ts b/ng-dev/release/publish/test/cut-lts-patch.spec.ts
index 39ad09176..82147295d 100644
--- a/ng-dev/release/publish/test/cut-lts-patch.spec.ts
+++ b/ng-dev/release/publish/test/cut-lts-patch.spec.ts
@@ -25,44 +25,54 @@ import {readFileSync} from 'fs';
 import {testTmpDir} from '../../../utils/testing';
 import {SandboxGitRepo} from '../../../utils/testing';
 import {getMockGitClient} from '../../../utils/testing';
+import {ActiveReleaseTrains} from '../../versioning';
 
 describe('cut an LTS patch action', () => {
   it('should be active', async () => {
     expect(
-      await CutLongTermSupportPatchAction.isActive({
-        releaseCandidate: null,
-        next: new ReleaseTrain('master', parse('10.1.0-next.3')),
-        latest: new ReleaseTrain('10.0.x', parse('10.0.3')),
-      }),
+      await CutLongTermSupportPatchAction.isActive(
+        new ActiveReleaseTrains({
+          releaseCandidate: null,
+          next: new ReleaseTrain('master', parse('10.1.0-next.3')),
+          latest: new ReleaseTrain('10.0.x', parse('10.0.3')),
+        }),
+      ),
     ).toBe(true);
   });
 
   it('should be active if there is a feature-freeze train', async () => {
     expect(
-      await CutLongTermSupportPatchAction.isActive({
-        releaseCandidate: new ReleaseTrain('10.1.x', parse('10.1.0-next.3')),
-        next: new ReleaseTrain('master', parse('10.2.0-next.3')),
-        latest: new ReleaseTrain('10.0.x', parse('10.0.3')),
-      }),
+      await CutLongTermSupportPatchAction.isActive(
+        new ActiveReleaseTrains({
+          releaseCandidate: new ReleaseTrain('10.1.x', parse('10.1.0-next.3')),
+          next: new ReleaseTrain('master', parse('10.2.0-next.3')),
+          latest: new ReleaseTrain('10.0.x', parse('10.0.3')),
+        }),
+      ),
     ).toBe(true);
   });
 
   it('should be active if there is a release-candidate train', async () => {
     expect(
-      await CutLongTermSupportPatchAction.isActive({
-        releaseCandidate: new ReleaseTrain('10.1.x', parse('10.1.0-rc.0')),
-        next: new ReleaseTrain('master', parse('10.2.0-next.3')),
-        latest: new ReleaseTrain('10.0.x', parse('10.0.3')),
-      }),
+      await CutLongTermSupportPatchAction.isActive(
+        new ActiveReleaseTrains({
+          releaseCandidate: new ReleaseTrain('10.1.x', parse('10.1.0-rc.0')),
+          next: new ReleaseTrain('master', parse('10.2.0-next.3')),
+          latest: new ReleaseTrain('10.0.x', parse('10.0.3')),
+        }),
+      ),
     ).toBe(true);
   });
 
   it('should compute proper new version and select correct branch', async () => {
-    const action = setupReleaseActionForTesting(CutLongTermSupportPatchAction, {
-      releaseCandidate: null,
-      next: new ReleaseTrain('master', parse('10.1.0-next.3')),
-      latest: new ReleaseTrain('10.0.x', parse('10.0.2')),
-    });
+    const action = setupReleaseActionForTesting(
+      CutLongTermSupportPatchAction,
+      new ActiveReleaseTrains({
+        releaseCandidate: null,
+        next: new ReleaseTrain('master', parse('10.1.0-next.3')),
+        latest: new ReleaseTrain('10.0.x', parse('10.0.2')),
+      }),
+    );
 
     spyOn<any>(action.instance, '_promptForTargetLtsBranch').and.resolveTo({
       name: '9.2.x',
@@ -76,11 +86,11 @@ describe('cut an LTS patch action', () => {
   it('should generate release notes capturing changes to previous latest LTS version', async () => {
     const action = setupReleaseActionForTesting(
       CutLongTermSupportPatchAction,
-      {
+      new ActiveReleaseTrains({
         releaseCandidate: null,
         next: new ReleaseTrain('master', parse('10.1.0-next.3')),
         latest: new ReleaseTrain('10.0.x', parse('10.0.2')),
-      },
+      }),
       true,
       {useSandboxGitClient: true},
     );
@@ -118,11 +128,11 @@ describe('cut an LTS patch action', () => {
   it('should include number of active LTS branches in action description', async () => {
     const {releaseConfig, githubConfig} = getTestConfigurationsForAction();
     const gitClient = getMockGitClient(githubConfig, /* useSandboxGitClient */ false);
-    const activeReleaseTrains = {
+    const activeReleaseTrains = new ActiveReleaseTrains({
       releaseCandidate: null,
       next: new ReleaseTrain('master', parse('10.1.0-next.3')),
       latest: new ReleaseTrain('10.0.x', parse('10.0.2')),
-    };
+    });
 
     fakeNpmPackageQueryRequest(releaseConfig.npmPackages[0], {
       'dist-tags': {'v9-lts': '9.1.2', 'v8-lts': '8.2.2'},
diff --git a/ng-dev/release/publish/test/cut-new-patch.spec.ts b/ng-dev/release/publish/test/cut-new-patch.spec.ts
index 72173480e..37ac6c937 100644
--- a/ng-dev/release/publish/test/cut-new-patch.spec.ts
+++ b/ng-dev/release/publish/test/cut-new-patch.spec.ts
@@ -16,44 +16,56 @@ import {
 import {readFileSync} from 'fs';
 import {testTmpDir} from '../../../utils/testing';
 import {SandboxGitRepo} from '../../../utils/testing';
+import {ActiveReleaseTrains} from '../../versioning';
 
 describe('cut new patch action', () => {
   it('should be active', async () => {
     expect(
-      await CutNewPatchAction.isActive({
-        releaseCandidate: null,
-        next: new ReleaseTrain('master', parse('10.1.0-next.3')),
-        latest: new ReleaseTrain('10.0.x', parse('10.0.3')),
-      }),
+      await CutNewPatchAction.isActive(
+        new ActiveReleaseTrains({
+          releaseCandidate: null,
+          next: new ReleaseTrain('master', parse('10.1.0-next.3')),
+          latest: new ReleaseTrain('10.0.x', parse('10.0.3')),
+        }),
+      ),
     ).toBe(true);
   });
 
   it('should compute proper new version and select correct branch', async () => {
-    const action = setupReleaseActionForTesting(CutNewPatchAction, {
-      releaseCandidate: null,
-      next: new ReleaseTrain('master', parse('10.1.0-next.3')),
-      latest: new ReleaseTrain('10.0.x', parse('10.0.2')),
-    });
+    const action = setupReleaseActionForTesting(
+      CutNewPatchAction,
+      new ActiveReleaseTrains({
+        releaseCandidate: null,
+        next: new ReleaseTrain('master', parse('10.1.0-next.3')),
+        latest: new ReleaseTrain('10.0.x', parse('10.0.2')),
+      }),
+    );
 
     await expectStagingAndPublishWithCherryPick(action, '10.0.x', '10.0.3', 'latest');
   });
 
   it('should create a proper new version if there is a feature-freeze release-train', async () => {
-    const action = setupReleaseActionForTesting(CutNewPatchAction, {
-      releaseCandidate: new ReleaseTrain('10.1.x', parse('10.1.0-next.3')),
-      next: new ReleaseTrain('master', parse('10.2.0-next.0')),
-      latest: new ReleaseTrain('10.0.x', parse('10.0.9')),
-    });
+    const action = setupReleaseActionForTesting(
+      CutNewPatchAction,
+      new ActiveReleaseTrains({
+        releaseCandidate: new ReleaseTrain('10.1.x', parse('10.1.0-next.3')),
+        next: new ReleaseTrain('master', parse('10.2.0-next.0')),
+        latest: new ReleaseTrain('10.0.x', parse('10.0.9')),
+      }),
+    );
 
     await expectStagingAndPublishWithCherryPick(action, '10.0.x', '10.0.10', 'latest');
   });
 
   it('should create a proper new version if there is a release-candidate train', async () => {
-    const action = setupReleaseActionForTesting(CutNewPatchAction, {
-      releaseCandidate: new ReleaseTrain('10.1.x', parse('10.1.0-rc.0')),
-      next: new ReleaseTrain('master', parse('10.2.0-next.0')),
-      latest: new ReleaseTrain('10.0.x', parse('10.0.9')),
-    });
+    const action = setupReleaseActionForTesting(
+      CutNewPatchAction,
+      new ActiveReleaseTrains({
+        releaseCandidate: new ReleaseTrain('10.1.x', parse('10.1.0-rc.0')),
+        next: new ReleaseTrain('master', parse('10.2.0-next.0')),
+        latest: new ReleaseTrain('10.0.x', parse('10.0.9')),
+      }),
+    );
 
     await expectStagingAndPublishWithCherryPick(action, '10.0.x', '10.0.10', 'latest');
   });
@@ -61,11 +73,11 @@ describe('cut new patch action', () => {
   it('should generate release notes capturing changes to the previous latest patch version', async () => {
     const action = setupReleaseActionForTesting(
       CutNewPatchAction,
-      {
+      new ActiveReleaseTrains({
         releaseCandidate: null,
         next: new ReleaseTrain('master', parse('10.1.0-next.3')),
         latest: new ReleaseTrain('10.0.x', parse('10.0.2')),
-      },
+      }),
       true,
       {useSandboxGitClient: true},
     );
diff --git a/ng-dev/release/publish/test/cut-next-prerelease.spec.ts b/ng-dev/release/publish/test/cut-next-prerelease.spec.ts
index 6243241f7..b4c57c87f 100644
--- a/ng-dev/release/publish/test/cut-next-prerelease.spec.ts
+++ b/ng-dev/release/publish/test/cut-next-prerelease.spec.ts
@@ -20,6 +20,7 @@ import {
 } from './test-utils/staging-test';
 import {testTmpDir} from '../../../utils/testing';
 import {SandboxGitRepo} from '../../../utils/testing';
+import {ActiveReleaseTrains} from '../../versioning';
 
 describe('cut next pre-release action', () => {
   it('should always be active regardless of release-trains', async () => {
@@ -27,11 +28,14 @@ describe('cut next pre-release action', () => {
   });
 
   it('should cut a pre-release for the next branch if there is no FF/RC branch', async () => {
-    const action = setupReleaseActionForTesting(CutNextPrereleaseAction, {
-      releaseCandidate: null,
-      next: new ReleaseTrain('master', parse('10.2.0-next.0')),
-      latest: new ReleaseTrain('10.1.x', parse('10.1.2')),
-    });
+    const action = setupReleaseActionForTesting(
+      CutNextPrereleaseAction,
+      new ActiveReleaseTrains({
+        releaseCandidate: null,
+        next: new ReleaseTrain('master', parse('10.2.0-next.0')),
+        latest: new ReleaseTrain('10.1.x', parse('10.1.2')),
+      }),
+    );
 
     await expectStagingAndPublishWithoutCherryPick(action, 'master', '10.2.0-next.1', 'next');
   });
@@ -47,11 +51,11 @@ describe('cut next pre-release action', () => {
     it('should not bump the version', async () => {
       const action = setupReleaseActionForTesting(
         CutNextPrereleaseAction,
-        {
+        new ActiveReleaseTrains({
           releaseCandidate: null,
           next: new ReleaseTrain('master', parse('10.2.0-next.0')),
           latest: new ReleaseTrain('10.1.x', parse('10.1.0')),
-        },
+        }),
         /* isNextPublishedToNpm */ false,
       );
 
@@ -68,11 +72,11 @@ describe('cut next pre-release action', () => {
       async () => {
         const action = setupReleaseActionForTesting(
           CutNextPrereleaseAction,
-          {
+          new ActiveReleaseTrains({
             releaseCandidate: null,
             next: new ReleaseTrain('master', parse('10.2.0-next.0')),
             latest: new ReleaseTrain('10.1.x', parse('10.1.0')),
-          },
+          }),
           /* isNextPublishedToNpm */ false,
           {useSandboxGitClient: true},
         );
@@ -111,11 +115,14 @@ describe('cut next pre-release action', () => {
 
   describe('with active feature-freeze', () => {
     it('should create a proper new version and select correct branch', async () => {
-      const action = setupReleaseActionForTesting(CutNextPrereleaseAction, {
-        releaseCandidate: new ReleaseTrain('10.1.x', parse('10.1.0-next.4')),
-        next: new ReleaseTrain('master', parse('10.2.0-next.0')),
-        latest: new ReleaseTrain('10.0.x', parse('10.0.2')),
-      });
+      const action = setupReleaseActionForTesting(
+        CutNextPrereleaseAction,
+        new ActiveReleaseTrains({
+          releaseCandidate: new ReleaseTrain('10.1.x', parse('10.1.0-next.4')),
+          next: new ReleaseTrain('master', parse('10.2.0-next.0')),
+          latest: new ReleaseTrain('10.0.x', parse('10.0.2')),
+        }),
+      );
 
       await expectStagingAndPublishWithCherryPick(action, '10.1.x', '10.1.0-next.5', 'next');
     });
@@ -123,11 +130,11 @@ describe('cut next pre-release action', () => {
     it('should generate release notes capturing changes to the previous pre-release', async () => {
       const action = setupReleaseActionForTesting(
         CutNextPrereleaseAction,
-        {
+        new ActiveReleaseTrains({
           releaseCandidate: new ReleaseTrain('10.1.x', parse('10.1.0-next.4')),
           next: new ReleaseTrain('master', parse('10.2.0-next.0')),
           latest: new ReleaseTrain('10.0.x', parse('10.0.2')),
-        },
+        }),
         true,
         {useSandboxGitClient: true},
       );
@@ -159,11 +166,14 @@ describe('cut next pre-release action', () => {
 
   describe('with active release-candidate', () => {
     it('should create a proper new version and select correct branch', async () => {
-      const action = setupReleaseActionForTesting(CutNextPrereleaseAction, {
-        releaseCandidate: new ReleaseTrain('10.1.x', parse('10.1.0-rc.0')),
-        next: new ReleaseTrain('master', parse('10.2.0-next.0')),
-        latest: new ReleaseTrain('10.0.x', parse('10.0.2')),
-      });
+      const action = setupReleaseActionForTesting(
+        CutNextPrereleaseAction,
+        new ActiveReleaseTrains({
+          releaseCandidate: new ReleaseTrain('10.1.x', parse('10.1.0-rc.0')),
+          next: new ReleaseTrain('master', parse('10.2.0-next.0')),
+          latest: new ReleaseTrain('10.0.x', parse('10.0.2')),
+        }),
+      );
 
       await expectStagingAndPublishWithCherryPick(action, '10.1.x', '10.1.0-rc.1', 'next');
     });
@@ -171,11 +181,11 @@ describe('cut next pre-release action', () => {
     it('should generate release notes capturing changes to the previous pre-release', async () => {
       const action = setupReleaseActionForTesting(
         CutNextPrereleaseAction,
-        {
+        new ActiveReleaseTrains({
           releaseCandidate: new ReleaseTrain('10.1.x', parse('10.1.0-rc.0')),
           next: new ReleaseTrain('master', parse('10.2.0-next.0')),
           latest: new ReleaseTrain('10.0.x', parse('10.0.2')),
-        },
+        }),
         true,
         {useSandboxGitClient: true},
       );
diff --git a/ng-dev/release/publish/test/cut-release-candidate-for-feature-freeze.spec.ts b/ng-dev/release/publish/test/cut-release-candidate-for-feature-freeze.spec.ts
index 4241e8b4b..150535473 100644
--- a/ng-dev/release/publish/test/cut-release-candidate-for-feature-freeze.spec.ts
+++ b/ng-dev/release/publish/test/cut-release-candidate-for-feature-freeze.spec.ts
@@ -16,45 +16,55 @@ import {
 import {readFileSync} from 'fs';
 import {testTmpDir} from '../../../utils/testing';
 import {SandboxGitRepo} from '../../../utils/testing';
+import {ActiveReleaseTrains} from '../../versioning';
 
 describe('cut release candidate for feature-freeze action', () => {
   it('should activate if a feature-freeze release-train is active', async () => {
     expect(
-      await CutReleaseCandidateForFeatureFreezeAction.isActive({
-        releaseCandidate: new ReleaseTrain('10.1.x', parse('10.1.0-next.1')),
-        next: new ReleaseTrain('master', parse('10.2.0-next.0')),
-        latest: new ReleaseTrain('10.0.x', parse('10.0.3')),
-      }),
+      await CutReleaseCandidateForFeatureFreezeAction.isActive(
+        new ActiveReleaseTrains({
+          releaseCandidate: new ReleaseTrain('10.1.x', parse('10.1.0-next.1')),
+          next: new ReleaseTrain('master', parse('10.2.0-next.0')),
+          latest: new ReleaseTrain('10.0.x', parse('10.0.3')),
+        }),
+      ),
     ).toBe(true);
   });
 
   it('should not activate if release-candidate release-train is active', async () => {
     expect(
-      await CutReleaseCandidateForFeatureFreezeAction.isActive({
-        // No longer in feature-freeze but in release-candidate phase.
-        releaseCandidate: new ReleaseTrain('10.1.x', parse('10.1.0-rc.0')),
-        next: new ReleaseTrain('master', parse('10.2.0-next.0')),
-        latest: new ReleaseTrain('10.0.x', parse('10.0.3')),
-      }),
+      await CutReleaseCandidateForFeatureFreezeAction.isActive(
+        new ActiveReleaseTrains({
+          // No longer in feature-freeze but in release-candidate phase.
+          releaseCandidate: new ReleaseTrain('10.1.x', parse('10.1.0-rc.0')),
+          next: new ReleaseTrain('master', parse('10.2.0-next.0')),
+          latest: new ReleaseTrain('10.0.x', parse('10.0.3')),
+        }),
+      ),
     ).toBe(false);
   });
 
   it('should not activate if no FF/RC release-train is active', async () => {
     expect(
-      await CutReleaseCandidateForFeatureFreezeAction.isActive({
-        releaseCandidate: null,
-        next: new ReleaseTrain('master', parse('10.1.0-next.0')),
-        latest: new ReleaseTrain('10.0.x', parse('10.0.3')),
-      }),
+      await CutReleaseCandidateForFeatureFreezeAction.isActive(
+        new ActiveReleaseTrains({
+          releaseCandidate: null,
+          next: new ReleaseTrain('master', parse('10.1.0-next.0')),
+          latest: new ReleaseTrain('10.0.x', parse('10.0.3')),
+        }),
+      ),
     ).toBe(false);
   });
 
   it('should create a proper new version and select correct branch', async () => {
-    const action = setupReleaseActionForTesting(CutReleaseCandidateForFeatureFreezeAction, {
-      releaseCandidate: new ReleaseTrain('10.1.x', parse('10.1.0-next.1')),
-      next: new ReleaseTrain('master', parse('10.2.0-next.0')),
-      latest: new ReleaseTrain('10.0.x', parse('10.0.3')),
-    });
+    const action = setupReleaseActionForTesting(
+      CutReleaseCandidateForFeatureFreezeAction,
+      new ActiveReleaseTrains({
+        releaseCandidate: new ReleaseTrain('10.1.x', parse('10.1.0-next.1')),
+        next: new ReleaseTrain('master', parse('10.2.0-next.0')),
+        latest: new ReleaseTrain('10.0.x', parse('10.0.3')),
+      }),
+    );
 
     await expectStagingAndPublishWithCherryPick(action, '10.1.x', '10.1.0-rc.0', 'next');
   });
@@ -62,11 +72,11 @@ describe('cut release candidate for feature-freeze action', () => {
   it('should generate release notes capturing changes to the previous pre-release', async () => {
     const action = setupReleaseActionForTesting(
       CutReleaseCandidateForFeatureFreezeAction,
-      {
+      new ActiveReleaseTrains({
         releaseCandidate: new ReleaseTrain('10.1.x', parse('10.1.0-next.1')),
         next: new ReleaseTrain('master', parse('10.2.0-next.0')),
         latest: new ReleaseTrain('10.0.x', parse('10.0.3')),
-      },
+      }),
       true,
       {useSandboxGitClient: true},
     );
diff --git a/ng-dev/release/publish/test/cut-stable.spec.ts b/ng-dev/release/publish/test/cut-stable.spec.ts
index cd692230d..f645d2a24 100644
--- a/ng-dev/release/publish/test/cut-stable.spec.ts
+++ b/ng-dev/release/publish/test/cut-stable.spec.ts
@@ -19,69 +19,85 @@ import {
 } from './test-utils/staging-test';
 import {testTmpDir} from '../../../utils/testing';
 import {SandboxGitRepo} from '../../../utils/testing';
+import {ActiveReleaseTrains} from '../../versioning';
 
 describe('cut stable action', () => {
   it('should not activate if a feature-freeze release-train is active', async () => {
     expect(
-      await CutStableAction.isActive({
-        releaseCandidate: new ReleaseTrain('10.1.x', parse('10.1.0-next.1')),
-        next: new ReleaseTrain('master', parse('10.2.0-next.0')),
-        latest: new ReleaseTrain('10.0.x', parse('10.0.3')),
-      }),
+      await CutStableAction.isActive(
+        new ActiveReleaseTrains({
+          releaseCandidate: new ReleaseTrain('10.1.x', parse('10.1.0-next.1')),
+          next: new ReleaseTrain('master', parse('10.2.0-next.0')),
+          latest: new ReleaseTrain('10.0.x', parse('10.0.3')),
+        }),
+      ),
     ).toBe(false);
   });
 
   it('should activate if release-candidate release-train is active', async () => {
     expect(
-      await CutStableAction.isActive({
-        // No longer in feature-freeze but in release-candidate phase.
-        releaseCandidate: new ReleaseTrain('10.1.x', parse('10.1.0-rc.0')),
-        next: new ReleaseTrain('master', parse('10.2.0-next.0')),
-        latest: new ReleaseTrain('10.0.x', parse('10.0.3')),
-      }),
+      await CutStableAction.isActive(
+        new ActiveReleaseTrains({
+          // No longer in feature-freeze but in release-candidate phase.
+          releaseCandidate: new ReleaseTrain('10.1.x', parse('10.1.0-rc.0')),
+          next: new ReleaseTrain('master', parse('10.2.0-next.0')),
+          latest: new ReleaseTrain('10.0.x', parse('10.0.3')),
+        }),
+      ),
     ).toBe(true);
   });
 
   it('should not activate if no FF/RC release-train is active', async () => {
     expect(
-      await CutStableAction.isActive({
-        releaseCandidate: null,
-        next: new ReleaseTrain('master', parse('10.1.0-next.0')),
-        latest: new ReleaseTrain('10.0.x', parse('10.0.3')),
-      }),
+      await CutStableAction.isActive(
+        new ActiveReleaseTrains({
+          releaseCandidate: null,
+          next: new ReleaseTrain('master', parse('10.1.0-next.0')),
+          latest: new ReleaseTrain('10.0.x', parse('10.0.3')),
+        }),
+      ),
     ).toBe(false);
   });
 
   it('should create a proper new version and select correct branch', async () => {
-    const action = setupReleaseActionForTesting(CutStableAction, {
-      // No longer in feature-freeze but in release-candidate phase.
-      releaseCandidate: new ReleaseTrain('10.1.x', parse('10.1.0-rc.0')),
-      next: new ReleaseTrain('master', parse('10.2.0-next.0')),
-      latest: new ReleaseTrain('10.0.x', parse('10.0.3')),
-    });
+    const action = setupReleaseActionForTesting(
+      CutStableAction,
+      new ActiveReleaseTrains({
+        // No longer in feature-freeze but in release-candidate phase.
+        releaseCandidate: new ReleaseTrain('10.1.x', parse('10.1.0-rc.0')),
+        next: new ReleaseTrain('master', parse('10.2.0-next.0')),
+        latest: new ReleaseTrain('10.0.x', parse('10.0.3')),
+      }),
+    );
 
     await expectStagingAndPublishWithCherryPick(action, '10.1.x', '10.1.0', 'latest');
   });
 
   it('should not tag the previous latest release-train if a minor has been cut', async () => {
-    const action = setupReleaseActionForTesting(CutStableAction, {
-      // No longer in feature-freeze but in release-candidate phase.
-      releaseCandidate: new ReleaseTrain('10.1.x', parse('10.1.0-rc.0')),
-      next: new ReleaseTrain('master', parse('10.2.0-next.0')),
-      latest: new ReleaseTrain('10.0.x', parse('10.0.3')),
-    });
+    const action = setupReleaseActionForTesting(
+      CutStableAction,
+      new ActiveReleaseTrains({
+        // No longer in feature-freeze but in release-candidate phase.
+        releaseCandidate: new ReleaseTrain('10.1.x', parse('10.1.0-rc.0')),
+        next: new ReleaseTrain('master', parse('10.2.0-next.0')),
+        latest: new ReleaseTrain('10.0.x', parse('10.0.3')),
+      }),
+    );
 
     await expectStagingAndPublishWithCherryPick(action, '10.1.x', '10.1.0', 'latest');
     expect(externalCommands.invokeSetNpmDistCommand).toHaveBeenCalledTimes(0);
   });
 
   it('should tag the previous latest release-train if a major has been cut', async () => {
-    const action = setupReleaseActionForTesting(CutStableAction, {
-      // No longer in feature-freeze but in release-candidate phase.
-      releaseCandidate: new ReleaseTrain('11.0.x', parse('11.0.0-rc.0')),
-      next: new ReleaseTrain('master', parse('10.2.0-next.0')),
-      latest: new ReleaseTrain('10.0.x', parse('10.0.3')),
-    });
+    const action = setupReleaseActionForTesting(
+      CutStableAction,
+      new ActiveReleaseTrains({
+        // No longer in feature-freeze but in release-candidate phase.
+        releaseCandidate: new ReleaseTrain('11.0.x', parse('11.0.0-rc.0')),
+        next: new ReleaseTrain('master', parse('10.2.0-next.0')),
+        latest: new ReleaseTrain('10.0.x', parse('10.0.3')),
+      }),
+    );
 
     // Ensure that the NPM dist tag is set only for packages that were available in the previous
     // major version. A spy has already been installed on the function.
@@ -106,11 +122,11 @@ describe('cut stable action', () => {
     async () => {
       const action = setupReleaseActionForTesting(
         CutStableAction,
-        {
+        new ActiveReleaseTrains({
           releaseCandidate: new ReleaseTrain('10.1.x', parse('10.1.0-rc.0')),
           next: new ReleaseTrain('master', parse('10.2.0-next.0')),
           latest: new ReleaseTrain('10.0.x', parse('10.0.3')),
-        },
+        }),
         true,
         {useSandboxGitClient: true},
       );
diff --git a/ng-dev/release/publish/test/move-next-into-feature-freeze.spec.ts b/ng-dev/release/publish/test/move-next-into-feature-freeze.spec.ts
index 29787b23a..fa45d5422 100644
--- a/ng-dev/release/publish/test/move-next-into-feature-freeze.spec.ts
+++ b/ng-dev/release/publish/test/move-next-into-feature-freeze.spec.ts
@@ -7,6 +7,7 @@
  */
 
 import {SandboxGitRepo} from '../../../utils/testing';
+import {ActiveReleaseTrains} from '../../versioning';
 import {ReleaseTrain} from '../../versioning/release-trains';
 import {MoveNextIntoFeatureFreezeAction} from '../actions/move-next-into-feature-freeze';
 
@@ -19,53 +20,61 @@ import {changelogPattern, parse} from './test-utils/test-utils';
 describe('move next into feature-freeze action', () => {
   it('should not activate if a feature-freeze release-train is active', async () => {
     expect(
-      await MoveNextIntoFeatureFreezeAction.isActive({
-        releaseCandidate: new ReleaseTrain('10.1.x', parse('10.1.0-next.1')),
-        next: new ReleaseTrain('master', parse('10.2.0-next.0')),
-        latest: new ReleaseTrain('10.0.x', parse('10.0.3')),
-      }),
+      await MoveNextIntoFeatureFreezeAction.isActive(
+        new ActiveReleaseTrains({
+          releaseCandidate: new ReleaseTrain('10.1.x', parse('10.1.0-next.1')),
+          next: new ReleaseTrain('master', parse('10.2.0-next.0')),
+          latest: new ReleaseTrain('10.0.x', parse('10.0.3')),
+        }),
+      ),
     ).toBe(false);
   });
 
   it('should not activate if release-candidate release-train is active', async () => {
     expect(
-      await MoveNextIntoFeatureFreezeAction.isActive({
-        // No longer in feature-freeze but in release-candidate phase.
-        releaseCandidate: new ReleaseTrain('10.1.x', parse('10.1.0-rc.0')),
-        next: new ReleaseTrain('master', parse('10.2.0-next.0')),
-        latest: new ReleaseTrain('10.0.x', parse('10.0.3')),
-      }),
+      await MoveNextIntoFeatureFreezeAction.isActive(
+        new ActiveReleaseTrains({
+          // No longer in feature-freeze but in release-candidate phase.
+          releaseCandidate: new ReleaseTrain('10.1.x', parse('10.1.0-rc.0')),
+          next: new ReleaseTrain('master', parse('10.2.0-next.0')),
+          latest: new ReleaseTrain('10.0.x', parse('10.0.3')),
+        }),
+      ),
     ).toBe(false);
   });
 
   it('should not activate if the next release-train is for a minor', async () => {
     expect(
-      await MoveNextIntoFeatureFreezeAction.isActive({
-        releaseCandidate: null,
-        next: new ReleaseTrain('master', parse('10.1.0-next.2')),
-        latest: new ReleaseTrain('10.0.x', parse('10.0.3')),
-      }),
+      await MoveNextIntoFeatureFreezeAction.isActive(
+        new ActiveReleaseTrains({
+          releaseCandidate: null,
+          next: new ReleaseTrain('master', parse('10.1.0-next.2')),
+          latest: new ReleaseTrain('10.0.x', parse('10.0.3')),
+        }),
+      ),
     ).toBe(false);
   });
 
   it('should activate if no FF/RC release-train is active', async () => {
     expect(
-      await MoveNextIntoFeatureFreezeAction.isActive({
-        releaseCandidate: null,
-        next: new ReleaseTrain('master', parse('11.0.0-next.0')),
-        latest: new ReleaseTrain('10.0.x', parse('10.0.3')),
-      }),
+      await MoveNextIntoFeatureFreezeAction.isActive(
+        new ActiveReleaseTrains({
+          releaseCandidate: null,
+          next: new ReleaseTrain('master', parse('11.0.0-next.0')),
+          latest: new ReleaseTrain('10.0.x', parse('10.0.3')),
+        }),
+      ),
     ).toBe(true);
   });
 
   it('should create pull requests and feature-freeze branch', async () => {
     await expectBranchOffActionToRun(
       MoveNextIntoFeatureFreezeAction,
-      {
+      new ActiveReleaseTrains({
         releaseCandidate: null,
         next: new ReleaseTrain('master', parse('10.1.0-next.0')),
         latest: new ReleaseTrain('10.0.x', parse('10.0.3')),
-      },
+      }),
       /* isNextPublishedToNpm */ true,
       '10.2.0-next.0',
       '10.1.0-next.1',
@@ -81,11 +90,11 @@ describe('move next into feature-freeze action', () => {
     it('should not increment the version', async () => {
       await expectBranchOffActionToRun(
         MoveNextIntoFeatureFreezeAction,
-        {
+        new ActiveReleaseTrains({
           releaseCandidate: null,
           next: new ReleaseTrain('master', parse('10.1.0-next.0')),
           latest: new ReleaseTrain('10.0.x', parse('10.0.3')),
-        },
+        }),
         /* isNextPublishedToNpm */ false,
         '10.2.0-next.0',
         '10.1.0-next.0',
@@ -99,11 +108,11 @@ describe('move next into feature-freeze action', () => {
       async () => {
         const {action, buildChangelog} = prepareBranchOffActionForChangelog(
           MoveNextIntoFeatureFreezeAction,
-          {
+          new ActiveReleaseTrains({
             releaseCandidate: null,
             next: new ReleaseTrain('master', parse('10.1.0-next.0')),
             latest: new ReleaseTrain('10.0.x', parse('10.0.3')),
-          },
+          }),
           /* isNextPublishedToNpm */ false,
           '10.2.0-next.0',
           '10.1.0-next.0',
@@ -139,11 +148,11 @@ describe('move next into feature-freeze action', () => {
   it('should generate release notes capturing changes to the previous next pre-release', async () => {
     const {action, buildChangelog} = prepareBranchOffActionForChangelog(
       MoveNextIntoFeatureFreezeAction,
-      {
+      new ActiveReleaseTrains({
         releaseCandidate: null,
         next: new ReleaseTrain('master', parse('10.1.0-next.0')),
         latest: new ReleaseTrain('10.0.x', parse('10.0.3')),
-      },
+      }),
       /* isNextPublishedToNpm */ true,
       '10.2.0-next.0',
       '10.1.0-next.1',
diff --git a/ng-dev/release/publish/test/move-next-into-release-candidate.spec.ts b/ng-dev/release/publish/test/move-next-into-release-candidate.spec.ts
index 7cc0bece6..eabe0e1ad 100644
--- a/ng-dev/release/publish/test/move-next-into-release-candidate.spec.ts
+++ b/ng-dev/release/publish/test/move-next-into-release-candidate.spec.ts
@@ -7,6 +7,7 @@
  */
 
 import {SandboxGitRepo} from '../../../utils/testing';
+import {ActiveReleaseTrains} from '../../versioning';
 import {ReleaseTrain} from '../../versioning/release-trains';
 import {MoveNextIntoReleaseCandidateAction} from '../actions/move-next-into-release-candidate';
 
@@ -19,42 +20,50 @@ import {changelogPattern, parse} from './test-utils/test-utils';
 describe('move next into release-candidate action', () => {
   it('should not activate if a feature-freeze release-train is active', async () => {
     expect(
-      await MoveNextIntoReleaseCandidateAction.isActive({
-        releaseCandidate: new ReleaseTrain('10.1.x', parse('10.1.0-next.1')),
-        next: new ReleaseTrain('master', parse('10.2.0-next.0')),
-        latest: new ReleaseTrain('10.0.x', parse('10.0.3')),
-      }),
+      await MoveNextIntoReleaseCandidateAction.isActive(
+        new ActiveReleaseTrains({
+          releaseCandidate: new ReleaseTrain('10.1.x', parse('10.1.0-next.1')),
+          next: new ReleaseTrain('master', parse('10.2.0-next.0')),
+          latest: new ReleaseTrain('10.0.x', parse('10.0.3')),
+        }),
+      ),
     ).toBe(false);
   });
 
   it('should not activate if release-candidate release-train is active', async () => {
     expect(
-      await MoveNextIntoReleaseCandidateAction.isActive({
-        // No longer in feature-freeze but in release-candidate phase.
-        releaseCandidate: new ReleaseTrain('10.1.x', parse('10.1.0-rc.0')),
-        next: new ReleaseTrain('master', parse('10.2.0-next.0')),
-        latest: new ReleaseTrain('10.0.x', parse('10.0.3')),
-      }),
+      await MoveNextIntoReleaseCandidateAction.isActive(
+        new ActiveReleaseTrains({
+          // No longer in feature-freeze but in release-candidate phase.
+          releaseCandidate: new ReleaseTrain('10.1.x', parse('10.1.0-rc.0')),
+          next: new ReleaseTrain('master', parse('10.2.0-next.0')),
+          latest: new ReleaseTrain('10.0.x', parse('10.0.3')),
+        }),
+      ),
     ).toBe(false);
   });
 
   it('should not activate if the next release-train is for a major', async () => {
     expect(
-      await MoveNextIntoReleaseCandidateAction.isActive({
-        releaseCandidate: null,
-        next: new ReleaseTrain('master', parse('11.0.0-next.0')),
-        latest: new ReleaseTrain('10.0.x', parse('10.0.3')),
-      }),
+      await MoveNextIntoReleaseCandidateAction.isActive(
+        new ActiveReleaseTrains({
+          releaseCandidate: null,
+          next: new ReleaseTrain('master', parse('11.0.0-next.0')),
+          latest: new ReleaseTrain('10.0.x', parse('10.0.3')),
+        }),
+      ),
     ).toBe(false);
   });
 
   it('should activate if no FF/RC release-train is active', async () => {
     expect(
-      await MoveNextIntoReleaseCandidateAction.isActive({
-        releaseCandidate: null,
-        next: new ReleaseTrain('master', parse('10.1.0-next.0')),
-        latest: new ReleaseTrain('10.0.x', parse('10.0.3')),
-      }),
+      await MoveNextIntoReleaseCandidateAction.isActive(
+        new ActiveReleaseTrains({
+          releaseCandidate: null,
+          next: new ReleaseTrain('master', parse('10.1.0-next.0')),
+          latest: new ReleaseTrain('10.0.x', parse('10.0.3')),
+        }),
+      ),
     ).toBe(true);
   });
 
@@ -64,11 +73,11 @@ describe('move next into release-candidate action', () => {
     it('should update the version regardless', async () => {
       await expectBranchOffActionToRun(
         MoveNextIntoReleaseCandidateAction,
-        {
+        new ActiveReleaseTrains({
           releaseCandidate: null,
           next: new ReleaseTrain('master', parse('10.1.0-next.0')),
           latest: new ReleaseTrain('10.0.x', parse('10.0.3')),
-        },
+        }),
         /* isNextPublishedToNpm */ false,
         '10.2.0-next.0',
         '10.1.0-rc.0',
@@ -82,11 +91,11 @@ describe('move next into release-candidate action', () => {
       async () => {
         const {action, buildChangelog} = prepareBranchOffActionForChangelog(
           MoveNextIntoReleaseCandidateAction,
-          {
+          new ActiveReleaseTrains({
             releaseCandidate: null,
             next: new ReleaseTrain('master', parse('10.1.0-next.0')),
             latest: new ReleaseTrain('10.0.x', parse('10.0.3')),
-          },
+          }),
           /* isNextPublishedToNpm */ false,
           '10.2.0-next.0',
           '10.1.0-rc.0',
@@ -122,11 +131,11 @@ describe('move next into release-candidate action', () => {
   it('should generate release notes capturing changes to the previous next pre-release', async () => {
     const {action, buildChangelog} = prepareBranchOffActionForChangelog(
       MoveNextIntoReleaseCandidateAction,
-      {
+      new ActiveReleaseTrains({
         releaseCandidate: null,
         next: new ReleaseTrain('master', parse('10.1.0-next.0')),
         latest: new ReleaseTrain('10.0.x', parse('10.0.3')),
-      },
+      }),
       /* isNextPublishedToNpm */ true,
       '10.2.0-next.0',
       '10.1.0-rc.0',
@@ -154,11 +163,11 @@ describe('move next into release-candidate action', () => {
   it('should create pull requests and new version-branch', async () => {
     await expectBranchOffActionToRun(
       MoveNextIntoReleaseCandidateAction,
-      {
+      new ActiveReleaseTrains({
         releaseCandidate: null,
         next: new ReleaseTrain('master', parse('10.1.0-next.0')),
         latest: new ReleaseTrain('10.0.x', parse('10.0.3')),
-      },
+      }),
       /* isNextPublishedToNpm */ true,
       '10.2.0-next.0',
       '10.1.0-rc.0',
diff --git a/ng-dev/release/publish/test/tag-recent-major-as-latest.spec.ts b/ng-dev/release/publish/test/tag-recent-major-as-latest.spec.ts
index 7bf7fae56..b7622ea1e 100644
--- a/ng-dev/release/publish/test/tag-recent-major-as-latest.spec.ts
+++ b/ng-dev/release/publish/test/tag-recent-major-as-latest.spec.ts
@@ -7,6 +7,7 @@
  */
 
 import {matchesVersion} from '../../../utils/testing';
+import {ActiveReleaseTrains} from '../../versioning';
 import {ReleaseTrain} from '../../versioning/release-trains';
 import {TagRecentMajorAsLatest} from '../actions/tag-recent-major-as-latest';
 import * as externalCommands from '../external-commands';
@@ -22,11 +23,11 @@ describe('tag recent major as latest action', () => {
     const {releaseConfig} = getTestConfigurationsForAction();
     expect(
       await TagRecentMajorAsLatest.isActive(
-        {
+        new ActiveReleaseTrains({
           releaseCandidate: null,
           next: new ReleaseTrain('master', parse('10.1.0-next.0')),
           latest: new ReleaseTrain('10.0.x', parse('10.0.1')),
-        },
+        }),
         releaseConfig,
       ),
     ).toBe(false);
@@ -47,11 +48,11 @@ describe('tag recent major as latest action', () => {
 
       expect(
         await TagRecentMajorAsLatest.isActive(
-          {
+          new ActiveReleaseTrains({
             releaseCandidate: null,
             next: new ReleaseTrain('master', parse('10.1.0-next.0')),
             latest: new ReleaseTrain('10.0.x', parse('10.0.0')),
-          },
+          }),
           releaseConfig,
         ),
       ).toBe(false);
@@ -74,11 +75,11 @@ describe('tag recent major as latest action', () => {
 
       expect(
         await TagRecentMajorAsLatest.isActive(
-          {
+          new ActiveReleaseTrains({
             releaseCandidate: null,
             next: new ReleaseTrain('master', parse('10.1.0-next.0')),
             latest: new ReleaseTrain('10.0.x', parse('10.0.0')),
-          },
+          }),
           releaseConfig,
         ),
       ).toBe(false);
@@ -98,11 +99,11 @@ describe('tag recent major as latest action', () => {
 
       expect(
         await TagRecentMajorAsLatest.isActive(
-          {
+          new ActiveReleaseTrains({
             releaseCandidate: null,
             next: new ReleaseTrain('master', parse('10.1.0-next.0')),
             latest: new ReleaseTrain('10.0.x', parse('10.0.0')),
-          },
+          }),
           releaseConfig,
         ),
       ).toBe(true);
@@ -112,11 +113,11 @@ describe('tag recent major as latest action', () => {
   it('should re-tag the version in the NPM registry and update the Github release', async () => {
     const {instance, gitClient, releaseConfig, repo} = setupReleaseActionForTesting(
       TagRecentMajorAsLatest,
-      {
+      new ActiveReleaseTrains({
         releaseCandidate: null,
         next: new ReleaseTrain('master', parse('10.1.0-next.0')),
         latest: new ReleaseTrain('10.0.x', parse('10.0.0')),
-      },
+      }),
     );
 
     // NPM `@latest` will point to a patch release of the previous major.
diff --git a/ng-dev/release/versioning/active-release-trains.ts b/ng-dev/release/versioning/active-release-trains.ts
index c549b9ba4..434da86fc 100644
--- a/ng-dev/release/versioning/active-release-trains.ts
+++ b/ng-dev/release/versioning/active-release-trains.ts
@@ -16,14 +16,27 @@ import {
   VersionBranch,
 } from './version-branches';
 
-/** Interface describing determined active release trains for a project. */
-export interface ActiveReleaseTrains {
+/** The active release trains for a project. */
+export class ActiveReleaseTrains {
   /** Release-train currently in the "release-candidate" or "feature-freeze" phase. */
-  releaseCandidate: ReleaseTrain | null;
-  /** Release-train currently in the "latest" phase. */
-  latest: ReleaseTrain;
+  readonly releaseCandidate: ReleaseTrain | null = this.trains.releaseCandidate || null;
   /** Release-train in the `next` phase. */
-  next: ReleaseTrain;
+  readonly next: ReleaseTrain = this.trains.next;
+  /** Release-train currently in the "latest" phase. */
+  readonly latest: ReleaseTrain = this.trains.latest;
+
+  constructor(
+    private trains: {
+      releaseCandidate: ReleaseTrain | null;
+      next: ReleaseTrain;
+      latest: ReleaseTrain;
+    },
+  ) {}
+
+  /** Whether the active release trains indicate the repository is in a feature freeze state. */
+  isFeatureFreeze() {
+    return this.releaseCandidate !== null && this.releaseCandidate.version.prerelease[0] === 'next';
+  }
 }
 
 /** Fetches the active release trains for the configured project. */
@@ -78,7 +91,7 @@ export async function fetchActiveReleaseTrains(
     );
   }
 
-  return {releaseCandidate, latest, next};
+  return new ActiveReleaseTrains({releaseCandidate, next, latest});
 }
 
 /** Finds the currently active release trains from the specified version branches. */