diff --git a/.github/workflows/accept-baselines-fix-lints.yaml b/.github/workflows/accept-baselines-fix-lints.yaml
index 6a6c5caadd7e1..15280cfa7814c 100644
--- a/.github/workflows/accept-baselines-fix-lints.yaml
+++ b/.github/workflows/accept-baselines-fix-lints.yaml
@@ -20,7 +20,7 @@ jobs:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
         with:
           token: ${{ secrets.TS_BOT_GITHUB_TOKEN }}
-      - uses: actions/setup-node@6044e13b5dc448c55e2357c09f80417699197238 # v6.2.0
+      - uses: actions/setup-node@53b83947a5a98c8d113130e565377fae1a50d02f # v6.3.0
         with:
           node-version: 'lts/*'
 
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index c8083c48840a0..463e23b477aaa 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -109,7 +109,7 @@ jobs:
     steps:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
       - name: Use node version ${{ matrix.config.node-version }}
-        uses: actions/setup-node@6044e13b5dc448c55e2357c09f80417699197238 # v6.2.0
+        uses: actions/setup-node@53b83947a5a98c8d113130e565377fae1a50d02f # v6.3.0
         with:
           node-version: ${{ matrix.config.node-version }}
           check-latest: true
@@ -143,7 +143,7 @@ jobs:
 
     steps:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
-      - uses: actions/setup-node@6044e13b5dc448c55e2357c09f80417699197238 # v6.2.0
+      - uses: actions/setup-node@53b83947a5a98c8d113130e565377fae1a50d02f # v6.3.0
         with:
           node-version: 'lts/*'
       - run: npm ci
@@ -168,7 +168,7 @@ jobs:
 
     steps:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
-      - uses: actions/setup-node@6044e13b5dc448c55e2357c09f80417699197238 # v6.2.0
+      - uses: actions/setup-node@53b83947a5a98c8d113130e565377fae1a50d02f # v6.3.0
         with:
           node-version: 'lts/*'
       - run: npm ci
@@ -181,7 +181,7 @@ jobs:
 
     steps:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
-      - uses: actions/setup-node@6044e13b5dc448c55e2357c09f80417699197238 # v6.2.0
+      - uses: actions/setup-node@53b83947a5a98c8d113130e565377fae1a50d02f # v6.3.0
         with:
           node-version: 'lts/*'
       - run: npm ci
@@ -194,7 +194,7 @@ jobs:
 
     steps:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
-      - uses: actions/setup-node@6044e13b5dc448c55e2357c09f80417699197238 # v6.2.0
+      - uses: actions/setup-node@53b83947a5a98c8d113130e565377fae1a50d02f # v6.3.0
         with:
           node-version: 'lts/*'
       - run: npm ci
@@ -216,7 +216,7 @@ jobs:
 
     steps:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
-      - uses: actions/setup-node@6044e13b5dc448c55e2357c09f80417699197238 # v6.2.0
+      - uses: actions/setup-node@53b83947a5a98c8d113130e565377fae1a50d02f # v6.3.0
         with:
           node-version: 'lts/*'
       - run: npm ci
@@ -232,7 +232,7 @@ jobs:
 
     steps:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
-      - uses: actions/setup-node@6044e13b5dc448c55e2357c09f80417699197238 # v6.2.0
+      - uses: actions/setup-node@53b83947a5a98c8d113130e565377fae1a50d02f # v6.3.0
         with:
           node-version: 'lts/*'
       - run: npm ci
@@ -246,7 +246,7 @@ jobs:
     steps:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
 
-      - uses: actions/setup-node@6044e13b5dc448c55e2357c09f80417699197238 # v6.2.0
+      - uses: actions/setup-node@53b83947a5a98c8d113130e565377fae1a50d02f # v6.3.0
         with:
           node-version: 'lts/*'
       - run: |
@@ -296,7 +296,7 @@ jobs:
           path: base
           ref: ${{ github.base_ref }}
 
-      - uses: actions/setup-node@6044e13b5dc448c55e2357c09f80417699197238 # v6.2.0
+      - uses: actions/setup-node@53b83947a5a98c8d113130e565377fae1a50d02f # v6.3.0
         with:
           node-version: 'lts/*'
       - run: |
@@ -335,7 +335,7 @@ jobs:
 
     steps:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
-      - uses: actions/setup-node@6044e13b5dc448c55e2357c09f80417699197238 # v6.2.0
+      - uses: actions/setup-node@53b83947a5a98c8d113130e565377fae1a50d02f # v6.3.0
         with:
           node-version: 'lts/*'
       - run: npm ci
@@ -351,7 +351,7 @@ jobs:
 
     steps:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
-      - uses: actions/setup-node@6044e13b5dc448c55e2357c09f80417699197238 # v6.2.0
+      - uses: actions/setup-node@53b83947a5a98c8d113130e565377fae1a50d02f # v6.3.0
         with:
           node-version: 'lts/*'
       - run: npm ci
@@ -372,7 +372,7 @@ jobs:
 
     steps:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
-      - uses: actions/setup-node@6044e13b5dc448c55e2357c09f80417699197238 # v6.2.0
+      - uses: actions/setup-node@53b83947a5a98c8d113130e565377fae1a50d02f # v6.3.0
         with:
           node-version: 'lts/*'
       - run: npm ci
diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
index bffda8680b3df..3cc182fec3256 100644
--- a/.github/workflows/codeql.yml
+++ b/.github/workflows/codeql.yml
@@ -46,7 +46,7 @@ jobs:
 
       # Initializes the CodeQL tools for scanning.
       - name: Initialize CodeQL
-        uses: github/codeql-action/init@89a39a4e59826350b863aa6b6252a07ad50cf83e # v4.32.4
+        uses: github/codeql-action/init@0d579ffd059c29b07949a3cce3983f0780820c98 # v4.32.6
         with:
           config-file: ./.github/codeql/codeql-configuration.yml
         # Override language selection by uncommenting this and choosing your languages
@@ -56,7 +56,7 @@ jobs:
       # Autobuild attempts to build any compiled languages (C/C++, C#, or Java).
       # If this step fails, then you should remove it and run the build manually (see below).
       - name: Autobuild
-        uses: github/codeql-action/autobuild@89a39a4e59826350b863aa6b6252a07ad50cf83e # v4.32.4
+        uses: github/codeql-action/autobuild@0d579ffd059c29b07949a3cce3983f0780820c98 # v4.32.6
 
       # ℹ️ Command-line programs to run using the OS shell.
       # 📚 See https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions#jobsjob_idstepsrun
@@ -70,4 +70,4 @@ jobs:
       #     make release
 
       - name: Perform CodeQL Analysis
-        uses: github/codeql-action/analyze@89a39a4e59826350b863aa6b6252a07ad50cf83e # v4.32.4
+        uses: github/codeql-action/analyze@0d579ffd059c29b07949a3cce3983f0780820c98 # v4.32.6
diff --git a/.github/workflows/copilot-setup-steps.yml b/.github/workflows/copilot-setup-steps.yml
index 3ba278f47a99a..cd0d22be26605 100644
--- a/.github/workflows/copilot-setup-steps.yml
+++ b/.github/workflows/copilot-setup-steps.yml
@@ -16,7 +16,7 @@ jobs:
     # If you do not check out your code, Copilot will do this for you.
     steps:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
-      - uses: actions/setup-node@6044e13b5dc448c55e2357c09f80417699197238 # v6.2.0
+      - uses: actions/setup-node@53b83947a5a98c8d113130e565377fae1a50d02f # v6.3.0
       - run: npm ci
       # pull dprint caches before network access is blocked
       - run: npx hereby check-format || true
diff --git a/.github/workflows/insiders.yaml b/.github/workflows/insiders.yaml
index 7d33556e1b7bb..22e7feef14be7 100644
--- a/.github/workflows/insiders.yaml
+++ b/.github/workflows/insiders.yaml
@@ -21,7 +21,7 @@ jobs:
 
     steps:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
-      - uses: actions/setup-node@6044e13b5dc448c55e2357c09f80417699197238 # v6.2.0
+      - uses: actions/setup-node@53b83947a5a98c8d113130e565377fae1a50d02f # v6.3.0
         with:
           node-version: 'lts/*'
       - run: |
@@ -43,7 +43,7 @@ jobs:
 
     steps:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
-      - uses: actions/setup-node@6044e13b5dc448c55e2357c09f80417699197238 # v6.2.0
+      - uses: actions/setup-node@53b83947a5a98c8d113130e565377fae1a50d02f # v6.3.0
         with:
           node-version: 'lts/*'
           # Use NODE_AUTH_TOKEN environment variable to authenticate to this registry.
diff --git a/.github/workflows/lkg.yml b/.github/workflows/lkg.yml
index 5195cd9c98646..69601b61a902a 100644
--- a/.github/workflows/lkg.yml
+++ b/.github/workflows/lkg.yml
@@ -33,7 +33,7 @@ jobs:
         with:
           ref: ${{ inputs.branch_name }}
           token: ${{ secrets.TS_BOT_GITHUB_TOKEN }}
-      - uses: actions/setup-node@6044e13b5dc448c55e2357c09f80417699197238 # v6.2.0
+      - uses: actions/setup-node@53b83947a5a98c8d113130e565377fae1a50d02f # v6.3.0
         with:
           node-version: 'lts/*'
       - run: |
diff --git a/.github/workflows/new-release-branch.yaml b/.github/workflows/new-release-branch.yaml
index 305b4361913f1..06a52bd6cc9f5 100644
--- a/.github/workflows/new-release-branch.yaml
+++ b/.github/workflows/new-release-branch.yaml
@@ -55,7 +55,7 @@ jobs:
           filter: blob:none # https://github.blog/2020-12-21-get-up-to-speed-with-partial-clone-and-shallow-clone/
           fetch-depth: 0 # Default is 1; need to set to 0 to get the benefits of blob:none.
           token: ${{ secrets.TS_BOT_GITHUB_TOKEN }}
-      - uses: actions/setup-node@6044e13b5dc448c55e2357c09f80417699197238 # v6.2.0
+      - uses: actions/setup-node@53b83947a5a98c8d113130e565377fae1a50d02f # v6.3.0
         with:
           node-version: 'lts/*'
       - run: |
diff --git a/.github/workflows/nightly.yaml b/.github/workflows/nightly.yaml
index 92c74366730a1..1aa2787d35ef4 100644
--- a/.github/workflows/nightly.yaml
+++ b/.github/workflows/nightly.yaml
@@ -22,7 +22,7 @@ jobs:
 
     steps:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
-      - uses: actions/setup-node@6044e13b5dc448c55e2357c09f80417699197238 # v6.2.0
+      - uses: actions/setup-node@53b83947a5a98c8d113130e565377fae1a50d02f # v6.3.0
         with:
           node-version: 'lts/*'
       - run: |
@@ -43,7 +43,7 @@ jobs:
 
     steps:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
-      - uses: actions/setup-node@6044e13b5dc448c55e2357c09f80417699197238 # v6.2.0
+      - uses: actions/setup-node@53b83947a5a98c8d113130e565377fae1a50d02f # v6.3.0
         with:
           node-version: 'lts/*'
           # Use NODE_AUTH_TOKEN environment variable to authenticate to this registry.
diff --git a/.github/workflows/release-branch-artifact.yaml b/.github/workflows/release-branch-artifact.yaml
index fcfcebdc53ba7..32cb5c7cee702 100644
--- a/.github/workflows/release-branch-artifact.yaml
+++ b/.github/workflows/release-branch-artifact.yaml
@@ -20,7 +20,7 @@ jobs:
 
     steps:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
-      - uses: actions/setup-node@6044e13b5dc448c55e2357c09f80417699197238 # v6.2.0
+      - uses: actions/setup-node@53b83947a5a98c8d113130e565377fae1a50d02f # v6.3.0
         with:
           node-version: 'lts/*'
       - run: |
diff --git a/.github/workflows/scorecard.yml b/.github/workflows/scorecard.yml
index cc0d0e1d1bd4f..4f96af1606a3b 100644
--- a/.github/workflows/scorecard.yml
+++ b/.github/workflows/scorecard.yml
@@ -55,6 +55,6 @@ jobs:
 
       # Upload the results to GitHub's code scanning dashboard.
       - name: 'Upload to code-scanning'
-        uses: github/codeql-action/upload-sarif@89a39a4e59826350b863aa6b6252a07ad50cf83e # v4.32.4
+        uses: github/codeql-action/upload-sarif@0d579ffd059c29b07949a3cce3983f0780820c98 # v4.32.6
         with:
           sarif_file: results.sarif
diff --git a/.github/workflows/set-version.yaml b/.github/workflows/set-version.yaml
index 387edc30f8ddb..cd32ffd0028d8 100644
--- a/.github/workflows/set-version.yaml
+++ b/.github/workflows/set-version.yaml
@@ -53,7 +53,7 @@ jobs:
         with:
           ref: ${{ inputs.branch_name }}
           token: ${{ secrets.TS_BOT_GITHUB_TOKEN }}
-      - uses: actions/setup-node@6044e13b5dc448c55e2357c09f80417699197238 # v6.2.0
+      - uses: actions/setup-node@53b83947a5a98c8d113130e565377fae1a50d02f # v6.3.0
         with:
           node-version: 'lts/*'
       - run: |
diff --git a/.github/workflows/sync-branch.yaml b/.github/workflows/sync-branch.yaml
index c37eae0a14eb1..e3bb90894abc3 100644
--- a/.github/workflows/sync-branch.yaml
+++ b/.github/workflows/sync-branch.yaml
@@ -42,7 +42,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/setup-node@6044e13b5dc448c55e2357c09f80417699197238 # v6.2.0
+      - uses: actions/setup-node@53b83947a5a98c8d113130e565377fae1a50d02f # v6.3.0
         with:
           node-version: 'lts/*'
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
diff --git a/.github/workflows/twoslash-repros.yaml b/.github/workflows/twoslash-repros.yaml
index 1b5b140026d9a..26de5f9d70d55 100644
--- a/.github/workflows/twoslash-repros.yaml
+++ b/.github/workflows/twoslash-repros.yaml
@@ -57,7 +57,7 @@ jobs:
           fetch-depth: 0 # Default is 1; need to set to 0 to get the benefits of blob:none.
       - if: ${{ !github.event.inputs.bisect }}
         uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
-      - uses: actions/setup-node@6044e13b5dc448c55e2357c09f80417699197238 # v6.2.0
+      - uses: actions/setup-node@53b83947a5a98c8d113130e565377fae1a50d02f # v6.3.0
         with:
           node-version: 'lts/*'
       - uses: microsoft/TypeScript-Twoslash-Repro-Action@master
diff --git a/.github/workflows/update-package-lock.yaml b/.github/workflows/update-package-lock.yaml
index 4aaf3c451826d..592989ec4864c 100644
--- a/.github/workflows/update-package-lock.yaml
+++ b/.github/workflows/update-package-lock.yaml
@@ -25,7 +25,7 @@ jobs:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
         with:
           token: ${{ secrets.TS_BOT_GITHUB_TOKEN }}
-      - uses: actions/setup-node@6044e13b5dc448c55e2357c09f80417699197238 # v6.2.0
+      - uses: actions/setup-node@53b83947a5a98c8d113130e565377fae1a50d02f # v6.3.0
         with:
           node-version: 'lts/*'
       - run: |
diff --git a/src/compiler/program.ts b/src/compiler/program.ts
index 69d10046a4c6d..b44a155f0146c 100644
--- a/src/compiler/program.ts
+++ b/src/compiler/program.ts
@@ -2555,6 +2555,9 @@ export function createProgram(_rootNamesOrOptions: readonly string[] | CreatePro
         Debug.assert(newSourceFiles.length === oldProgram.getSourceFiles().length);
         for (const newSourceFile of newSourceFiles) {
             filesByName.set(newSourceFile.path, newSourceFile);
+            if (oldProgram.isSourceFileDefaultLibrary(newSourceFile)) {
+                libFiles.add(newSourceFile.path);
+            }
         }
         const oldFilesByNameMap = oldProgram.getFilesByNameMap();
         oldFilesByNameMap.forEach((oldFile, path) => {
diff --git a/src/testRunner/unittests/reuseProgramStructure.ts b/src/testRunner/unittests/reuseProgramStructure.ts
index b3388976306bd..2e148439626f6 100644
--- a/src/testRunner/unittests/reuseProgramStructure.ts
+++ b/src/testRunner/unittests/reuseProgramStructure.ts
@@ -769,6 +769,35 @@ describe("unittests:: reuseProgramStructure:: General", () => {
         baselineDiagnostics(baselines, program4);
         runBaseline("handles file preprocessing dignostics when diagnostics are not queried", baselines);
     });
+
+    it("isSourceFileDefaultLibrary is preserved after program reuse", () => {
+        const libFile = { name: "/lib.d.ts", text: SourceText.New("", "", "declare var console: any;") };
+        const mainFile = { name: "/main.ts", text: SourceText.New("", "", "var x = 1;") };
+        const files = [libFile, mainFile];
+
+        const host = createTestCompilerHost(files, target);
+        host.getDefaultLibFileName = () => "/lib.d.ts";
+
+        const options: ts.CompilerOptions = { target };
+        const program1 = ts.createProgram(["/main.ts"], options, host) as ProgramWithSourceTexts;
+        program1.sourceTexts = files;
+        program1.host = host;
+        program1.version = 1;
+
+        const libSourceFile1 = program1.getSourceFile("/lib.d.ts")!;
+        assert.isDefined(libSourceFile1, "lib file should exist in program 1");
+        assert.isTrue(program1.isSourceFileDefaultLibrary(libSourceFile1), "lib file should be a default library in program 1");
+
+        // Update main file only (code change) -> should trigger complete structure reuse
+        mainFile.text = mainFile.text.updateProgram("var x = 2;");
+        const host2 = createTestCompilerHost(files, target, program1);
+        host2.getDefaultLibFileName = () => "/lib.d.ts";
+        const program2 = ts.createProgram(["/main.ts"], options, host2, program1);
+
+        const libSourceFile2 = program2.getSourceFile("/lib.d.ts")!;
+        assert.isDefined(libSourceFile2, "lib file should exist in program 2");
+        assert.isTrue(program2.isSourceFileDefaultLibrary(libSourceFile2), "lib file should still be a default library in program 2 after reuse");
+    });
 });
 
 describe("unittests:: reuseProgramStructure:: host is optional", () => {
diff --git a/tests/baselines/reference/tscWatch/emit/emit-file-content/file-is-deleted-and-created-as-part-of-change.js b/tests/baselines/reference/tscWatch/emit/emit-file-content/file-is-deleted-and-created-as-part-of-change.js
index 0726885ec643d..978b5fd3f1e28 100644
--- a/tests/baselines/reference/tscWatch/emit/emit-file-content/file-is-deleted-and-created-as-part-of-change.js
+++ b/tests/baselines/reference/tscWatch/emit/emit-file-content/file-is-deleted-and-created-as-part-of-change.js
@@ -126,6 +126,5 @@ Semantic diagnostics in builder refreshed for::
 
 Shape signatures in builder refreshed for::
 /home/username/projects/project/app/file.ts (computed .d.ts)
-/home/src/tslibs/TS/Lib/lib.es2025.full.d.ts (used version)
 
 exitCode:: ExitStatus.undefined
diff --git a/tests/baselines/reference/tscWatch/emit/emit-file-content/handles-new-lines-carriageReturn-lineFeed.js b/tests/baselines/reference/tscWatch/emit/emit-file-content/handles-new-lines-carriageReturn-lineFeed.js
index 0c51e3fea214c..a412733bb995f 100644
--- a/tests/baselines/reference/tscWatch/emit/emit-file-content/handles-new-lines-carriageReturn-lineFeed.js
+++ b/tests/baselines/reference/tscWatch/emit/emit-file-content/handles-new-lines-carriageReturn-lineFeed.js
@@ -115,6 +115,5 @@ Semantic diagnostics in builder refreshed for::
 
 Shape signatures in builder refreshed for::
 /home/src/projects/a/app.ts (computed .d.ts)
-/home/src/tslibs/ts/lib/lib.es2025.full.d.ts (used version)
 
 exitCode:: ExitStatus.undefined
diff --git a/tests/baselines/reference/tscWatch/emit/emit-file-content/handles-new-lines-lineFeed.js b/tests/baselines/reference/tscWatch/emit/emit-file-content/handles-new-lines-lineFeed.js
index 69e2e99f1673a..bbf6c9fbdf05f 100644
--- a/tests/baselines/reference/tscWatch/emit/emit-file-content/handles-new-lines-lineFeed.js
+++ b/tests/baselines/reference/tscWatch/emit/emit-file-content/handles-new-lines-lineFeed.js
@@ -115,6 +115,5 @@ Semantic diagnostics in builder refreshed for::
 
 Shape signatures in builder refreshed for::
 /home/src/projects/a/app.ts (computed .d.ts)
-/home/src/tslibs/ts/lib/lib.es2025.full.d.ts (used version)
 
 exitCode:: ExitStatus.undefined
diff --git a/tests/baselines/reference/tscWatch/emit/emit-for-configured-projects/should-return-all-files-if-a-global-file-changed-shape.js b/tests/baselines/reference/tscWatch/emit/emit-for-configured-projects/should-return-all-files-if-a-global-file-changed-shape.js
index d60a9bba8c6df..8577505fe0eb6 100644
--- a/tests/baselines/reference/tscWatch/emit/emit-for-configured-projects/should-return-all-files-if-a-global-file-changed-shape.js
+++ b/tests/baselines/reference/tscWatch/emit/emit-for-configured-projects/should-return-all-files-if-a-global-file-changed-shape.js
@@ -189,7 +189,6 @@ Semantic diagnostics in builder refreshed for::
 
 Shape signatures in builder refreshed for::
 /home/src/projects/a/b/globalfile3.ts (computed .d.ts)
-/home/src/tslibs/ts/lib/lib.es2025.full.d.ts (used version)
 /home/src/projects/a/b/modulefile1.ts (computed .d.ts)
 /home/src/projects/a/b/file1consumer1.ts (computed .d.ts)
 /home/src/projects/a/b/file1consumer2.ts (computed .d.ts)
diff --git a/tests/baselines/reference/tscWatch/emit/emit-with-outFile-or-out-setting/config-does-not-have-out-or-outFile.js b/tests/baselines/reference/tscWatch/emit/emit-with-outFile-or-out-setting/config-does-not-have-out-or-outFile.js
index e7862f7b839a7..3278ca732a5f3 100644
--- a/tests/baselines/reference/tscWatch/emit/emit-with-outFile-or-out-setting/config-does-not-have-out-or-outFile.js
+++ b/tests/baselines/reference/tscWatch/emit/emit-with-outFile-or-out-setting/config-does-not-have-out-or-outFile.js
@@ -142,7 +142,6 @@ Semantic diagnostics in builder refreshed for::
 
 Shape signatures in builder refreshed for::
 /home/src/projects/a/a.ts (computed .d.ts)
-/home/src/tslibs/ts/lib/lib.es2025.full.d.ts (used version)
 /home/src/projects/a/b.ts (computed .d.ts)
 
 exitCode:: ExitStatus.undefined
@@ -200,7 +199,6 @@ Semantic diagnostics in builder refreshed for::
 
 Shape signatures in builder refreshed for::
 /home/src/projects/a/a.ts (computed .d.ts)
-/home/src/tslibs/ts/lib/lib.es2025.full.d.ts (used version)
 /home/src/projects/a/b.ts (computed .d.ts)
 
 exitCode:: ExitStatus.undefined
diff --git a/tests/baselines/reference/tscWatch/emit/emit-with-outFile-or-out-setting/config-has-out.js b/tests/baselines/reference/tscWatch/emit/emit-with-outFile-or-out-setting/config-has-out.js
index ad6dc0459d151..ab5f9f74a8bdf 100644
--- a/tests/baselines/reference/tscWatch/emit/emit-with-outFile-or-out-setting/config-has-out.js
+++ b/tests/baselines/reference/tscWatch/emit/emit-with-outFile-or-out-setting/config-has-out.js
@@ -150,7 +150,6 @@ No cached semantic diagnostics in the builder::
 
 Shape signatures in builder refreshed for::
 /home/src/projects/a/a.ts (computed .d.ts)
-/home/src/tslibs/ts/lib/lib.es2025.full.d.ts (used version)
 /home/src/projects/a/b.ts (computed .d.ts)
 
 exitCode:: ExitStatus.undefined
@@ -211,7 +210,6 @@ No cached semantic diagnostics in the builder::
 
 Shape signatures in builder refreshed for::
 /home/src/projects/a/a.ts (computed .d.ts)
-/home/src/tslibs/ts/lib/lib.es2025.full.d.ts (used version)
 /home/src/projects/a/b.ts (computed .d.ts)
 
 exitCode:: ExitStatus.undefined
diff --git a/tests/baselines/reference/tscWatch/emit/when-module-emit-is-specified-as-node/when-instead-of-filechanged-recursive-directory-watcher-is-invoked.js b/tests/baselines/reference/tscWatch/emit/when-module-emit-is-specified-as-node/when-instead-of-filechanged-recursive-directory-watcher-is-invoked.js
index efc1b2e717a22..485f88df77d3c 100644
--- a/tests/baselines/reference/tscWatch/emit/when-module-emit-is-specified-as-node/when-instead-of-filechanged-recursive-directory-watcher-is-invoked.js
+++ b/tests/baselines/reference/tscWatch/emit/when-module-emit-is-specified-as-node/when-instead-of-filechanged-recursive-directory-watcher-is-invoked.js
@@ -169,7 +169,6 @@ No cached semantic diagnostics in the builder::
 
 Shape signatures in builder refreshed for::
 /home/src/projects/a/rootfolder/project/scripts/typescript.ts (computed .d.ts)
-/home/src/tslibs/ts/lib/lib.es2025.full.d.ts (used version)
 /home/src/projects/a/rootfolder/project/scripts/javascript.js (computed .d.ts)
 
 exitCode:: ExitStatus.undefined
diff --git a/tests/baselines/reference/tscWatch/noEmit/multiFile/dts-errors-with-incremental.js b/tests/baselines/reference/tscWatch/noEmit/multiFile/dts-errors-with-incremental.js
index c4b0d703aeefc..d6a9f2cc0d70a 100644
--- a/tests/baselines/reference/tscWatch/noEmit/multiFile/dts-errors-with-incremental.js
+++ b/tests/baselines/reference/tscWatch/noEmit/multiFile/dts-errors-with-incremental.js
@@ -258,7 +258,6 @@ Semantic diagnostics in builder refreshed for::
 
 Shape signatures in builder refreshed for::
 /home/src/projects/project/a.ts (computed .d.ts)
-/home/src/tslibs/ts/lib/lib.es2025.full.d.ts (used version)
 
 exitCode:: ExitStatus.undefined
 
@@ -547,7 +546,6 @@ Semantic diagnostics in builder refreshed for::
 
 Shape signatures in builder refreshed for::
 /home/src/projects/project/a.ts (computed .d.ts)
-/home/src/tslibs/ts/lib/lib.es2025.full.d.ts (used version)
 
 exitCode:: ExitStatus.undefined
 
diff --git a/tests/baselines/reference/tscWatch/noEmit/multiFile/dts-errors-without-dts-enabled-with-incremental.js b/tests/baselines/reference/tscWatch/noEmit/multiFile/dts-errors-without-dts-enabled-with-incremental.js
index 51de6929de8ce..45a78198e43c1 100644
--- a/tests/baselines/reference/tscWatch/noEmit/multiFile/dts-errors-without-dts-enabled-with-incremental.js
+++ b/tests/baselines/reference/tscWatch/noEmit/multiFile/dts-errors-without-dts-enabled-with-incremental.js
@@ -210,7 +210,6 @@ Semantic diagnostics in builder refreshed for::
 
 Shape signatures in builder refreshed for::
 /home/src/projects/project/a.ts (computed .d.ts)
-/home/src/tslibs/ts/lib/lib.es2025.full.d.ts (used version)
 
 exitCode:: ExitStatus.undefined
 
@@ -448,7 +447,6 @@ Semantic diagnostics in builder refreshed for::
 
 Shape signatures in builder refreshed for::
 /home/src/projects/project/a.ts (computed .d.ts)
-/home/src/tslibs/ts/lib/lib.es2025.full.d.ts (used version)
 
 exitCode:: ExitStatus.undefined
 
diff --git a/tests/baselines/reference/tscWatch/noEmit/multiFile/dts-errors-without-dts-enabled.js b/tests/baselines/reference/tscWatch/noEmit/multiFile/dts-errors-without-dts-enabled.js
index 729f3b8641ec9..64c355af39094 100644
--- a/tests/baselines/reference/tscWatch/noEmit/multiFile/dts-errors-without-dts-enabled.js
+++ b/tests/baselines/reference/tscWatch/noEmit/multiFile/dts-errors-without-dts-enabled.js
@@ -116,7 +116,6 @@ Semantic diagnostics in builder refreshed for::
 
 Shape signatures in builder refreshed for::
 /home/src/projects/project/a.ts (computed .d.ts)
-/home/src/tslibs/ts/lib/lib.es2025.full.d.ts (used version)
 
 exitCode:: ExitStatus.undefined
 
@@ -262,7 +261,6 @@ Semantic diagnostics in builder refreshed for::
 
 Shape signatures in builder refreshed for::
 /home/src/projects/project/a.ts (computed .d.ts)
-/home/src/tslibs/ts/lib/lib.es2025.full.d.ts (used version)
 
 exitCode:: ExitStatus.undefined
 
diff --git a/tests/baselines/reference/tscWatch/noEmit/multiFile/dts-errors.js b/tests/baselines/reference/tscWatch/noEmit/multiFile/dts-errors.js
index 90b6719ea7917..c30146fb3956c 100644
--- a/tests/baselines/reference/tscWatch/noEmit/multiFile/dts-errors.js
+++ b/tests/baselines/reference/tscWatch/noEmit/multiFile/dts-errors.js
@@ -129,7 +129,6 @@ Semantic diagnostics in builder refreshed for::
 
 Shape signatures in builder refreshed for::
 /home/src/projects/project/a.ts (computed .d.ts)
-/home/src/tslibs/ts/lib/lib.es2025.full.d.ts (used version)
 
 exitCode:: ExitStatus.undefined
 
@@ -295,7 +294,6 @@ Semantic diagnostics in builder refreshed for::
 
 Shape signatures in builder refreshed for::
 /home/src/projects/project/a.ts (computed .d.ts)
-/home/src/tslibs/ts/lib/lib.es2025.full.d.ts (used version)
 
 exitCode:: ExitStatus.undefined
 
diff --git a/tests/baselines/reference/tscWatch/noEmit/multiFile/semantic-errors-with-incremental.js b/tests/baselines/reference/tscWatch/noEmit/multiFile/semantic-errors-with-incremental.js
index b29d5a71ab4a4..82094c53a446e 100644
--- a/tests/baselines/reference/tscWatch/noEmit/multiFile/semantic-errors-with-incremental.js
+++ b/tests/baselines/reference/tscWatch/noEmit/multiFile/semantic-errors-with-incremental.js
@@ -229,7 +229,6 @@ Semantic diagnostics in builder refreshed for::
 
 Shape signatures in builder refreshed for::
 /home/src/projects/project/a.ts (computed .d.ts)
-/home/src/tslibs/ts/lib/lib.es2025.full.d.ts (used version)
 
 exitCode:: ExitStatus.undefined
 
@@ -486,7 +485,6 @@ Semantic diagnostics in builder refreshed for::
 
 Shape signatures in builder refreshed for::
 /home/src/projects/project/a.ts (computed .d.ts)
-/home/src/tslibs/ts/lib/lib.es2025.full.d.ts (used version)
 
 exitCode:: ExitStatus.undefined
 
diff --git a/tests/baselines/reference/tscWatch/noEmit/multiFile/semantic-errors.js b/tests/baselines/reference/tscWatch/noEmit/multiFile/semantic-errors.js
index 44bad78530385..03c3ce987a7fc 100644
--- a/tests/baselines/reference/tscWatch/noEmit/multiFile/semantic-errors.js
+++ b/tests/baselines/reference/tscWatch/noEmit/multiFile/semantic-errors.js
@@ -121,7 +121,6 @@ Semantic diagnostics in builder refreshed for::
 
 Shape signatures in builder refreshed for::
 /home/src/projects/project/a.ts (computed .d.ts)
-/home/src/tslibs/ts/lib/lib.es2025.full.d.ts (used version)
 
 exitCode:: ExitStatus.undefined
 
@@ -272,7 +271,6 @@ Semantic diagnostics in builder refreshed for::
 
 Shape signatures in builder refreshed for::
 /home/src/projects/project/a.ts (computed .d.ts)
-/home/src/tslibs/ts/lib/lib.es2025.full.d.ts (used version)
 
 exitCode:: ExitStatus.undefined
 
diff --git a/tests/baselines/reference/tscWatch/programUpdates/handle-recreated-files-correctly.js b/tests/baselines/reference/tscWatch/programUpdates/handle-recreated-files-correctly.js
index 1d3599c98cdbe..b819e89fb7a3e 100644
--- a/tests/baselines/reference/tscWatch/programUpdates/handle-recreated-files-correctly.js
+++ b/tests/baselines/reference/tscWatch/programUpdates/handle-recreated-files-correctly.js
@@ -153,7 +153,6 @@ Semantic diagnostics in builder refreshed for::
 
 Shape signatures in builder refreshed for::
 /user/username/workspace/solution/projects/project/commonfile2.ts (computed .d.ts)
-/home/src/tslibs/ts/lib/lib.es2025.full.d.ts (used version)
 /user/username/workspace/solution/projects/project/commonfile1.ts (computed .d.ts)
 
 exitCode:: ExitStatus.undefined
diff --git a/tests/baselines/reference/tscWatch/programUpdates/should-reflect-change-in-config-file.js b/tests/baselines/reference/tscWatch/programUpdates/should-reflect-change-in-config-file.js
index 488f80299d1f9..95f0cffd7e6c6 100644
--- a/tests/baselines/reference/tscWatch/programUpdates/should-reflect-change-in-config-file.js
+++ b/tests/baselines/reference/tscWatch/programUpdates/should-reflect-change-in-config-file.js
@@ -152,7 +152,6 @@ Semantic diagnostics in builder refreshed for::
 
 Shape signatures in builder refreshed for::
 /user/username/workspace/solution/projects/project/commonfile2.ts (computed .d.ts)
-/home/src/tslibs/ts/lib/lib.es2025.full.d.ts (used version)
 /user/username/workspace/solution/projects/project/commonfile1.ts (computed .d.ts)
 
 exitCode:: ExitStatus.undefined
diff --git a/tests/baselines/reference/tscWatch/programUpdates/updates-errors-in-lib-file/when-module-file-with-global-definitions-changes/with-default-options.js b/tests/baselines/reference/tscWatch/programUpdates/updates-errors-in-lib-file/when-module-file-with-global-definitions-changes/with-default-options.js
index 89b625dffb6e9..30d0eb555dc8d 100644
--- a/tests/baselines/reference/tscWatch/programUpdates/updates-errors-in-lib-file/when-module-file-with-global-definitions-changes/with-default-options.js
+++ b/tests/baselines/reference/tscWatch/programUpdates/updates-errors-in-lib-file/when-module-file-with-global-definitions-changes/with-default-options.js
@@ -117,7 +117,6 @@ Semantic diagnostics in builder refreshed for::
 
 Shape signatures in builder refreshed for::
 /user/username/projects/myproject/a.ts (computed .d.ts)
-/home/src/tslibs/ts/lib/lib.es2025.full.d.ts (used version)
 
 exitCode:: ExitStatus.undefined
 
@@ -170,6 +169,5 @@ Semantic diagnostics in builder refreshed for::
 
 Shape signatures in builder refreshed for::
 /user/username/projects/myproject/a.ts (computed .d.ts)
-/home/src/tslibs/ts/lib/lib.es2025.full.d.ts (used version)
 
 exitCode:: ExitStatus.undefined
diff --git a/tests/baselines/reference/tscWatch/programUpdates/updates-errors-in-lib-file/when-module-file-with-global-definitions-changes/with-skipDefaultLibCheck.js b/tests/baselines/reference/tscWatch/programUpdates/updates-errors-in-lib-file/when-module-file-with-global-definitions-changes/with-skipDefaultLibCheck.js
index 24af0860b777b..aecb48e910de7 100644
--- a/tests/baselines/reference/tscWatch/programUpdates/updates-errors-in-lib-file/when-module-file-with-global-definitions-changes/with-skipDefaultLibCheck.js
+++ b/tests/baselines/reference/tscWatch/programUpdates/updates-errors-in-lib-file/when-module-file-with-global-definitions-changes/with-skipDefaultLibCheck.js
@@ -114,12 +114,10 @@ Program files::
 /user/username/projects/myproject/a.ts
 
 Semantic diagnostics in builder refreshed for::
-/home/src/tslibs/TS/Lib/lib.es2025.full.d.ts
 /user/username/projects/myproject/a.ts
 
 Shape signatures in builder refreshed for::
 /user/username/projects/myproject/a.ts (computed .d.ts)
-/home/src/tslibs/ts/lib/lib.es2025.full.d.ts (used version)
 
 exitCode:: ExitStatus.undefined
 
@@ -168,11 +166,9 @@ Program files::
 /user/username/projects/myproject/a.ts
 
 Semantic diagnostics in builder refreshed for::
-/home/src/tslibs/TS/Lib/lib.es2025.full.d.ts
 /user/username/projects/myproject/a.ts
 
 Shape signatures in builder refreshed for::
 /user/username/projects/myproject/a.ts (computed .d.ts)
-/home/src/tslibs/ts/lib/lib.es2025.full.d.ts (used version)
 
 exitCode:: ExitStatus.undefined
diff --git a/tests/baselines/reference/tscWatch/programUpdates/updates-errors-in-lib-file/when-module-file-with-global-definitions-changes/with-skipLibCheck.js b/tests/baselines/reference/tscWatch/programUpdates/updates-errors-in-lib-file/when-module-file-with-global-definitions-changes/with-skipLibCheck.js
index de0a29fcf4ea4..8144a6ec10e81 100644
--- a/tests/baselines/reference/tscWatch/programUpdates/updates-errors-in-lib-file/when-module-file-with-global-definitions-changes/with-skipLibCheck.js
+++ b/tests/baselines/reference/tscWatch/programUpdates/updates-errors-in-lib-file/when-module-file-with-global-definitions-changes/with-skipLibCheck.js
@@ -114,12 +114,10 @@ Program files::
 /user/username/projects/myproject/a.ts
 
 Semantic diagnostics in builder refreshed for::
-/home/src/tslibs/TS/Lib/lib.es2025.full.d.ts
 /user/username/projects/myproject/a.ts
 
 Shape signatures in builder refreshed for::
 /user/username/projects/myproject/a.ts (computed .d.ts)
-/home/src/tslibs/ts/lib/lib.es2025.full.d.ts (used version)
 
 exitCode:: ExitStatus.undefined
 
@@ -168,11 +166,9 @@ Program files::
 /user/username/projects/myproject/a.ts
 
 Semantic diagnostics in builder refreshed for::
-/home/src/tslibs/TS/Lib/lib.es2025.full.d.ts
 /user/username/projects/myproject/a.ts
 
 Shape signatures in builder refreshed for::
 /user/username/projects/myproject/a.ts (computed .d.ts)
-/home/src/tslibs/ts/lib/lib.es2025.full.d.ts (used version)
 
 exitCode:: ExitStatus.undefined
diff --git a/tests/baselines/reference/tscWatch/programUpdates/updates-errors-in-lib-file/when-non-module-file-changes/with-default-options.js b/tests/baselines/reference/tscWatch/programUpdates/updates-errors-in-lib-file/when-non-module-file-changes/with-default-options.js
index 6bac50a84dd8e..85bb9811b601a 100644
--- a/tests/baselines/reference/tscWatch/programUpdates/updates-errors-in-lib-file/when-non-module-file-changes/with-default-options.js
+++ b/tests/baselines/reference/tscWatch/programUpdates/updates-errors-in-lib-file/when-non-module-file-changes/with-default-options.js
@@ -117,7 +117,6 @@ Semantic diagnostics in builder refreshed for::
 
 Shape signatures in builder refreshed for::
 /user/username/projects/myproject/a.ts (computed .d.ts)
-/home/src/tslibs/ts/lib/lib.es2025.full.d.ts (used version)
 
 exitCode:: ExitStatus.undefined
 
@@ -171,6 +170,5 @@ Semantic diagnostics in builder refreshed for::
 
 Shape signatures in builder refreshed for::
 /user/username/projects/myproject/a.ts (computed .d.ts)
-/home/src/tslibs/ts/lib/lib.es2025.full.d.ts (used version)
 
 exitCode:: ExitStatus.undefined
diff --git a/tests/baselines/reference/tscWatch/programUpdates/updates-errors-in-lib-file/when-non-module-file-changes/with-skipDefaultLibCheck.js b/tests/baselines/reference/tscWatch/programUpdates/updates-errors-in-lib-file/when-non-module-file-changes/with-skipDefaultLibCheck.js
index f45f00d408d5a..17e4810dd3976 100644
--- a/tests/baselines/reference/tscWatch/programUpdates/updates-errors-in-lib-file/when-non-module-file-changes/with-skipDefaultLibCheck.js
+++ b/tests/baselines/reference/tscWatch/programUpdates/updates-errors-in-lib-file/when-non-module-file-changes/with-skipDefaultLibCheck.js
@@ -114,12 +114,10 @@ Program files::
 /user/username/projects/myproject/a.ts
 
 Semantic diagnostics in builder refreshed for::
-/home/src/tslibs/TS/Lib/lib.es2025.full.d.ts
 /user/username/projects/myproject/a.ts
 
 Shape signatures in builder refreshed for::
 /user/username/projects/myproject/a.ts (computed .d.ts)
-/home/src/tslibs/ts/lib/lib.es2025.full.d.ts (used version)
 
 exitCode:: ExitStatus.undefined
 
@@ -169,11 +167,9 @@ Program files::
 /user/username/projects/myproject/a.ts
 
 Semantic diagnostics in builder refreshed for::
-/home/src/tslibs/TS/Lib/lib.es2025.full.d.ts
 /user/username/projects/myproject/a.ts
 
 Shape signatures in builder refreshed for::
 /user/username/projects/myproject/a.ts (computed .d.ts)
-/home/src/tslibs/ts/lib/lib.es2025.full.d.ts (used version)
 
 exitCode:: ExitStatus.undefined
diff --git a/tests/baselines/reference/tscWatch/programUpdates/updates-errors-in-lib-file/when-non-module-file-changes/with-skipLibCheck.js b/tests/baselines/reference/tscWatch/programUpdates/updates-errors-in-lib-file/when-non-module-file-changes/with-skipLibCheck.js
index 1dc440994c547..cfbde626bb710 100644
--- a/tests/baselines/reference/tscWatch/programUpdates/updates-errors-in-lib-file/when-non-module-file-changes/with-skipLibCheck.js
+++ b/tests/baselines/reference/tscWatch/programUpdates/updates-errors-in-lib-file/when-non-module-file-changes/with-skipLibCheck.js
@@ -114,12 +114,10 @@ Program files::
 /user/username/projects/myproject/a.ts
 
 Semantic diagnostics in builder refreshed for::
-/home/src/tslibs/TS/Lib/lib.es2025.full.d.ts
 /user/username/projects/myproject/a.ts
 
 Shape signatures in builder refreshed for::
 /user/username/projects/myproject/a.ts (computed .d.ts)
-/home/src/tslibs/ts/lib/lib.es2025.full.d.ts (used version)
 
 exitCode:: ExitStatus.undefined
 
@@ -169,11 +167,9 @@ Program files::
 /user/username/projects/myproject/a.ts
 
 Semantic diagnostics in builder refreshed for::
-/home/src/tslibs/TS/Lib/lib.es2025.full.d.ts
 /user/username/projects/myproject/a.ts
 
 Shape signatures in builder refreshed for::
 /user/username/projects/myproject/a.ts (computed .d.ts)
-/home/src/tslibs/ts/lib/lib.es2025.full.d.ts (used version)
 
 exitCode:: ExitStatus.undefined
diff --git a/tests/baselines/reference/tscWatch/programUpdates/when-skipLibCheck-and-skipDefaultLibCheck-changes.js b/tests/baselines/reference/tscWatch/programUpdates/when-skipLibCheck-and-skipDefaultLibCheck-changes.js
index 2be8aba10e7f8..b7f2bd43ca0d1 100644
--- a/tests/baselines/reference/tscWatch/programUpdates/when-skipLibCheck-and-skipDefaultLibCheck-changes.js
+++ b/tests/baselines/reference/tscWatch/programUpdates/when-skipLibCheck-and-skipDefaultLibCheck-changes.js
@@ -243,6 +243,7 @@ Program files::
 /user/username/projects/myproject/b.d.ts
 
 Semantic diagnostics in builder refreshed for::
+/home/src/tslibs/TS/Lib/lib.es2025.full.d.ts
 
 No shapes updated in the builder::
 
@@ -297,6 +298,7 @@ Program files::
 /user/username/projects/myproject/b.d.ts
 
 Semantic diagnostics in builder refreshed for::
+/home/src/tslibs/TS/Lib/lib.es2025.full.d.ts
 
 No shapes updated in the builder::
 
diff --git a/tests/baselines/reference/tscWatch/watchEnvironment/fsEvent-for-change-is-repeated.js b/tests/baselines/reference/tscWatch/watchEnvironment/fsEvent-for-change-is-repeated.js
index f59cee9ed1f69..93daa9358dd00 100644
--- a/tests/baselines/reference/tscWatch/watchEnvironment/fsEvent-for-change-is-repeated.js
+++ b/tests/baselines/reference/tscWatch/watchEnvironment/fsEvent-for-change-is-repeated.js
@@ -126,7 +126,6 @@ main.ts
 
 Shape signatures in builder refreshed for::
 /user/username/projects/project/main.ts (computed .d.ts)
-/home/src/tslibs/ts/lib/lib.es2025.full.d.ts (used version)
 
 exitCode:: ExitStatus.undefined
 
diff --git a/tests/baselines/reference/tscWatch/watchEnvironment/watchFile/using-dynamic-priority-polling.js b/tests/baselines/reference/tscWatch/watchEnvironment/watchFile/using-dynamic-priority-polling.js
index 465ec92999306..a8b78da35c033 100644
--- a/tests/baselines/reference/tscWatch/watchEnvironment/watchFile/using-dynamic-priority-polling.js
+++ b/tests/baselines/reference/tscWatch/watchEnvironment/watchFile/using-dynamic-priority-polling.js
@@ -708,7 +708,6 @@ Semantic diagnostics in builder refreshed for::
 
 Shape signatures in builder refreshed for::
 /a/username/projects/project/typescript.ts (computed .d.ts)
-/home/src/tslibs/ts/lib/lib.es2025.full.d.ts (used version)
 
 exitCode:: ExitStatus.undefined
 
diff --git a/tests/baselines/reference/tscWatch/watchEnvironment/watchFile/using-fixed-chunk-size-polling.js b/tests/baselines/reference/tscWatch/watchEnvironment/watchFile/using-fixed-chunk-size-polling.js
index e86d3e2e5bce4..cdda22409dafe 100644
--- a/tests/baselines/reference/tscWatch/watchEnvironment/watchFile/using-fixed-chunk-size-polling.js
+++ b/tests/baselines/reference/tscWatch/watchEnvironment/watchFile/using-fixed-chunk-size-polling.js
@@ -194,7 +194,6 @@ Semantic diagnostics in builder refreshed for::
 
 Shape signatures in builder refreshed for::
 /user/username/projects/project/commonfile1.ts (computed .d.ts)
-/home/src/tslibs/ts/lib/lib.es2025.full.d.ts (used version)
 /user/username/projects/project/commonfile2.ts (computed .d.ts)
 
 exitCode:: ExitStatus.undefined
diff --git a/tests/baselines/reference/tsserver/compileOnSave/configProjects-global-file-shape-changed.js b/tests/baselines/reference/tsserver/compileOnSave/configProjects-global-file-shape-changed.js
index 655202bf6d28e..e3771bddc72c7 100644
--- a/tests/baselines/reference/tsserver/compileOnSave/configProjects-global-file-shape-changed.js
+++ b/tests/baselines/reference/tsserver/compileOnSave/configProjects-global-file-shape-changed.js
@@ -345,7 +345,6 @@ Info seq  [hh:mm:ss:mss] response:
           "projectFileName": "/home/src/workspace/projects/b/tsconfig.json",
           "fileNames": [
             "/home/src/workspace/projects/b/globalFile3.ts",
-            "/home/src/tslibs/TS/Lib/lib.es2025.full.d.ts",
             "/home/src/workspace/projects/b/moduleFile1.ts",
             "/home/src/workspace/projects/b/file1Consumer1.ts",
             "/home/src/workspace/projects/b/file1Consumer2.ts",
diff --git a/tests/baselines/reference/tsserver/compileOnSave/emit-in-project-with-module.js b/tests/baselines/reference/tsserver/compileOnSave/emit-in-project-with-module.js
index 3fceacaf70415..984d62f620b23 100644
--- a/tests/baselines/reference/tsserver/compileOnSave/emit-in-project-with-module.js
+++ b/tests/baselines/reference/tsserver/compileOnSave/emit-in-project-with-module.js
@@ -697,7 +697,6 @@ Info seq  [hh:mm:ss:mss] response:
           "projectFileName": "/user/username/projects/myproject/tsconfig.json",
           "fileNames": [
             "/user/username/projects/myproject/file2.ts",
-            "/home/src/tslibs/TS/Lib/lib.es2025.full.d.ts",
             "/user/username/projects/myproject/file1.ts",
             "/user/username/projects/myproject/file3.ts",
             "/user/username/projects/myproject/module.ts"
diff --git a/tests/baselines/reference/tsserver/compileOnSave/emit-in-project.js b/tests/baselines/reference/tsserver/compileOnSave/emit-in-project.js
index fad7194b44441..a48ec6e4d680b 100644
--- a/tests/baselines/reference/tsserver/compileOnSave/emit-in-project.js
+++ b/tests/baselines/reference/tsserver/compileOnSave/emit-in-project.js
@@ -659,7 +659,6 @@ Info seq  [hh:mm:ss:mss] response:
           "projectFileName": "/user/username/projects/myproject/tsconfig.json",
           "fileNames": [
             "/user/username/projects/myproject/file2.ts",
-            "/home/src/tslibs/TS/Lib/lib.es2025.full.d.ts",
             "/user/username/projects/myproject/file1.ts",
             "/user/username/projects/myproject/file3.ts"
           ],