diff --git a/.github/workflows/csharp-qltest.yml b/.github/workflows/csharp-qltest.yml
index c24b8d3bc007..c8683eec02dd 100644
--- a/.github/workflows/csharp-qltest.yml
+++ b/.github/workflows/csharp-qltest.yml
@@ -66,6 +66,6 @@ jobs:
           # Update existing stubs in the repo with the freshly generated ones
           mv "$STUBS_PATH/output/stubs/_frameworks" ql/test/resources/stubs/
           git status
-          codeql test run --threads=0 --search-path "${{ github.workspace }}" --check-databases --check-undefined-labels --check-repeated-labels --check-redefined-labels --consistency-queries ql/consistency-queries -- ql/test/library-tests/dataflow/flowsources/aspremote
+          codeql test run --threads=0 --search-path "${{ github.workspace }}" --check-databases --check-diff-informed --check-undefined-labels --check-repeated-labels --check-redefined-labels --consistency-queries ql/consistency-queries -- ql/test/library-tests/dataflow/flowsources/aspremote
         env:
           GITHUB_TOKEN: ${{ github.token }}
diff --git a/.github/workflows/ruby-qltest-rtjo.yml b/.github/workflows/ruby-qltest-rtjo.yml
index d7d1724cd4b6..c2ae9c0cef19 100644
--- a/.github/workflows/ruby-qltest-rtjo.yml
+++ b/.github/workflows/ruby-qltest-rtjo.yml
@@ -35,6 +35,6 @@ jobs:
           key: ruby-qltest
       - name: Run QL tests
         run: |
-          codeql test run --dynamic-join-order-mode=all --threads=0 --ram 50000 --search-path "${{ github.workspace }}" --check-databases --check-undefined-labels --check-unused-labels --check-repeated-labels --check-redefined-labels --check-use-before-definition --consistency-queries ql/consistency-queries ql/test --compilation-cache "${{ steps.query-cache.outputs.cache-dir }}"
+          codeql test run --dynamic-join-order-mode=all --threads=0 --ram 50000 --search-path "${{ github.workspace }}" --check-databases --check-diff-informed --check-undefined-labels --check-unused-labels --check-repeated-labels --check-redefined-labels --check-use-before-definition --consistency-queries ql/consistency-queries ql/test --compilation-cache "${{ steps.query-cache.outputs.cache-dir }}"
         env:
           GITHUB_TOKEN: ${{ github.token }}
diff --git a/.github/workflows/ruby-qltest.yml b/.github/workflows/ruby-qltest.yml
index 224e1c129b4f..d1518205dab9 100644
--- a/.github/workflows/ruby-qltest.yml
+++ b/.github/workflows/ruby-qltest.yml
@@ -68,6 +68,6 @@ jobs:
           key: ruby-qltest
       - name: Run QL tests
         run: |
-          codeql test run --threads=0 --ram 50000 --search-path "${{ github.workspace }}" --check-databases --check-undefined-labels --check-unused-labels --check-repeated-labels --check-redefined-labels --check-use-before-definition --consistency-queries ql/consistency-queries ql/test --compilation-cache "${{ steps.query-cache.outputs.cache-dir }}"
+          codeql test run --threads=0 --ram 50000 --search-path "${{ github.workspace }}" --check-databases --check-diff-informed --check-undefined-labels --check-unused-labels --check-repeated-labels --check-redefined-labels --check-use-before-definition --consistency-queries ql/consistency-queries ql/test --compilation-cache "${{ steps.query-cache.outputs.cache-dir }}"
         env:
           GITHUB_TOKEN: ${{ github.token }}
diff --git a/go/Makefile b/go/Makefile
index 5bf6d70e0e69..b05ffaea4708 100644
--- a/go/Makefile
+++ b/go/Makefile
@@ -54,9 +54,9 @@ ql/lib/go.dbscheme.stats: ql/lib/go.dbscheme build/stats/src.stamp extractor
 	codeql dataset measure -o $@ build/stats/database/db-go
 
 test: all build/testdb/check-upgrade-path
-	codeql test run -j0 ql/test --search-path .. --consistency-queries ql/test/consistency --compilation-cache=$(cache) --dynamic-join-order-mode=$(rtjo)
+	codeql test run -j0 ql/test --search-path .. --check-diff-informed --consistency-queries ql/test/consistency --compilation-cache=$(cache) --dynamic-join-order-mode=$(rtjo)
 #	use GOOS=linux because GOOS=darwin GOARCH=386 is no longer supported
-	env GOOS=linux GOARCH=386 codeql$(EXE) test run -j0 ql/test/query-tests/Security/CWE-681 --search-path .. --consistency-queries ql/test/consistency --compilation-cache=$(cache) --dynamic-join-order-mode=$(rtjo)
+	env GOOS=linux GOARCH=386 codeql$(EXE) test run -j0 ql/test/query-tests/Security/CWE-681 --search-path .. --check-diff-informed --consistency-queries ql/test/consistency --compilation-cache=$(cache) --dynamic-join-order-mode=$(rtjo)
 	cd extractor; $(BAZEL) test ...
 	bash extractor-smoke-test/test.sh || (echo "Extractor smoke test FAILED"; exit 1)
 
diff --git a/ruby/Makefile b/ruby/Makefile
index 23333b494f4e..ddaca6534fbd 100644
--- a/ruby/Makefile
+++ b/ruby/Makefile
@@ -65,4 +65,4 @@ extractor:	$(FILES) $(BIN_FILES)
 	cp ../target/release/codeql-extractor-ruby$(EXE) extractor-pack/tools/$(CODEQL_PLATFORM)/extractor$(EXE)
 
 test: extractor dbscheme
-	codeql test run --check-databases --check-unused-labels --check-repeated-labels --check-redefined-labels --check-use-before-definition --search-path .. --consistency-queries ql/consistency-queries ql/test
+	codeql test run --check-databases --check-diff-informed --check-unused-labels --check-repeated-labels --check-redefined-labels --check-use-before-definition --search-path .. --consistency-queries ql/consistency-queries ql/test