diff --git a/third-party/thrift/src/thrift/lib/hack/src/IThriftWrapper.php b/third-party/thrift/src/thrift/lib/hack/src/IThriftWrapper.php
index 55e33d35c708d0..ac56e27c062090 100644
--- a/third-party/thrift/src/thrift/lib/hack/src/IThriftWrapper.php
+++ b/third-party/thrift/src/thrift/lib/hack/src/IThriftWrapper.php
@@ -1,5 +1,20 @@
 <?hh
-// (c) Meta Platforms, Inc. and affiliates. Confidential and proprietary.
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
 /*
  * Copyright (c) Meta Platforms, Inc. and affiliates.
  *
diff --git a/third-party/thrift/src/thrift/lib/hack/src/ResponseAndClientSink.php b/third-party/thrift/src/thrift/lib/hack/src/ResponseAndClientSink.php
index 42cd4c44c355ff..5d07ccb881e2de 100644
--- a/third-party/thrift/src/thrift/lib/hack/src/ResponseAndClientSink.php
+++ b/third-party/thrift/src/thrift/lib/hack/src/ResponseAndClientSink.php
@@ -1,5 +1,20 @@
 <?hh
-// (c) Meta Platforms, Inc. and affiliates. Confidential and proprietary.
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
 
 final class ResponseAndClientSink<
   TFirstResponse,
diff --git a/third-party/thrift/src/thrift/lib/hack/src/ResponseAndStream.php b/third-party/thrift/src/thrift/lib/hack/src/ResponseAndStream.php
index 1b0955be03a174..f86468fab240f7 100644
--- a/third-party/thrift/src/thrift/lib/hack/src/ResponseAndStream.php
+++ b/third-party/thrift/src/thrift/lib/hack/src/ResponseAndStream.php
@@ -1,5 +1,20 @@
 <?hh
-// (c) Meta Platforms, Inc. and affiliates. Confidential and proprietary.
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
 
 <<Oncalls('thrift')>> // @oss-disable
 class ResponseAndStream<TResponse, TStreamResult> {
diff --git a/third-party/thrift/src/thrift/lib/hack/src/TContextPropV2ServerHandler.php b/third-party/thrift/src/thrift/lib/hack/src/TContextPropV2ServerHandler.php
index 07ee6f4ab3c59b..e4daa7fd64f3e4 100644
--- a/third-party/thrift/src/thrift/lib/hack/src/TContextPropV2ServerHandler.php
+++ b/third-party/thrift/src/thrift/lib/hack/src/TContextPropV2ServerHandler.php
@@ -1,5 +1,20 @@
 <?hh
-// (c) Meta Platforms, Inc. and affiliates. Confidential and proprietary.
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
 
 type ServerInstrumentationParams = shape(
   ?'fn_name' => string,
diff --git a/third-party/thrift/src/thrift/lib/hack/src/ThriftBacktraceEventHandler.php b/third-party/thrift/src/thrift/lib/hack/src/ThriftBacktraceEventHandler.php
index 2c8c8a6e61980b..d0958f29a802be 100644
--- a/third-party/thrift/src/thrift/lib/hack/src/ThriftBacktraceEventHandler.php
+++ b/third-party/thrift/src/thrift/lib/hack/src/ThriftBacktraceEventHandler.php
@@ -1,5 +1,20 @@
 <?hh
-// (c) Meta Platforms, Inc. and affiliates. Confidential and proprietary.
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
 
 /*
  * class responsible for handling backtraces on the server side.
diff --git a/third-party/thrift/src/thrift/lib/hack/src/ThriftContextPropHandler.php b/third-party/thrift/src/thrift/lib/hack/src/ThriftContextPropHandler.php
index ba57ecbe3dd95b..fd0a4781d254d1 100644
--- a/third-party/thrift/src/thrift/lib/hack/src/ThriftContextPropHandler.php
+++ b/third-party/thrift/src/thrift/lib/hack/src/ThriftContextPropHandler.php
@@ -1,5 +1,20 @@
 <?hh
-// (c) Meta Platforms, Inc. and affiliates. Confidential and proprietary.
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
 
 // Reference implementations:
 //  www/flib/core/smc/thrift/ThriftContextPropClientEventHandler.php
diff --git a/third-party/thrift/src/thrift/lib/hack/src/ThriftContextPropServerEventHandler.php b/third-party/thrift/src/thrift/lib/hack/src/ThriftContextPropServerEventHandler.php
index 36db15d344a7f0..11eec64ce8347b 100644
--- a/third-party/thrift/src/thrift/lib/hack/src/ThriftContextPropServerEventHandler.php
+++ b/third-party/thrift/src/thrift/lib/hack/src/ThriftContextPropServerEventHandler.php
@@ -1,5 +1,20 @@
 <?hh
-// (c) Meta Platforms, Inc. and affiliates. Confidential and proprietary.
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
 
 final class ThriftContextPropServerEventHandler extends TProcessorEventHandler {
 
diff --git a/third-party/thrift/src/thrift/lib/hack/src/ThriftContextPropState.php b/third-party/thrift/src/thrift/lib/hack/src/ThriftContextPropState.php
index 2dabb90b83c602..6756444d51d802 100644
--- a/third-party/thrift/src/thrift/lib/hack/src/ThriftContextPropState.php
+++ b/third-party/thrift/src/thrift/lib/hack/src/ThriftContextPropState.php
@@ -1,5 +1,20 @@
 <?hh
-// (c) Meta Platforms, Inc. and affiliates. Confidential and proprietary.
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
 
 // Reference implementations:
 //  www/flib/core/contextprop/ContextManager.php
diff --git a/third-party/thrift/src/thrift/lib/hack/src/ThriftControllerHitLogger.php b/third-party/thrift/src/thrift/lib/hack/src/ThriftControllerHitLogger.php
index 30f3710e572237..2766a7780e2e7d 100644
--- a/third-party/thrift/src/thrift/lib/hack/src/ThriftControllerHitLogger.php
+++ b/third-party/thrift/src/thrift/lib/hack/src/ThriftControllerHitLogger.php
@@ -1,5 +1,20 @@
 <?hh
-// (c) Meta Platforms, Inc. and affiliates. Confidential and proprietary.
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
 
 <<Oncalls('alite')>>
 final class ThriftControllerHitLogger {
diff --git a/third-party/thrift/src/thrift/lib/hack/src/ThriftImmutableWrapper.php b/third-party/thrift/src/thrift/lib/hack/src/ThriftImmutableWrapper.php
index f91c72c1d3d616..cea8cf77301dd5 100644
--- a/third-party/thrift/src/thrift/lib/hack/src/ThriftImmutableWrapper.php
+++ b/third-party/thrift/src/thrift/lib/hack/src/ThriftImmutableWrapper.php
@@ -1,5 +1,20 @@
 <?hh
-// (c) Meta Platforms, Inc. and affiliates. Confidential and proprietary.
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
 
 /**
  * Immutable Wrapper class on Thrift structs exposing generic capabilities.
diff --git a/third-party/thrift/src/thrift/lib/hack/src/ThriftPolicyEnforcer.php b/third-party/thrift/src/thrift/lib/hack/src/ThriftPolicyEnforcer.php
index f5a476611621ae..800e315e4cc6c3 100644
--- a/third-party/thrift/src/thrift/lib/hack/src/ThriftPolicyEnforcer.php
+++ b/third-party/thrift/src/thrift/lib/hack/src/ThriftPolicyEnforcer.php
@@ -1,5 +1,20 @@
 <?hh
-// (c) Meta Platforms, Inc. and affiliates. Confidential and proprietary.
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
 
 final class ThriftPolicyEnforcer extends PolicyEnforcer {
   const PolicyEnforcerAssetClass ASSET_CLASS =
diff --git a/third-party/thrift/src/thrift/lib/hack/src/ThriftResultUtil.php b/third-party/thrift/src/thrift/lib/hack/src/ThriftResultUtil.php
index 14be69e0d52007..41fa54aa09a79b 100644
--- a/third-party/thrift/src/thrift/lib/hack/src/ThriftResultUtil.php
+++ b/third-party/thrift/src/thrift/lib/hack/src/ThriftResultUtil.php
@@ -1,5 +1,20 @@
 <?hh
-// (c) Meta Platforms, Inc. and affiliates. Confidential and proprietary.
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
 
 interface IResultThriftStruct extends \IThriftStruct {
   abstract const type TResult;
diff --git a/third-party/thrift/src/thrift/lib/hack/src/ThriftStreamingSerializationHelpers.php b/third-party/thrift/src/thrift/lib/hack/src/ThriftStreamingSerializationHelpers.php
index c92e44ff7c0d45..87bdc95d5b9b27 100644
--- a/third-party/thrift/src/thrift/lib/hack/src/ThriftStreamingSerializationHelpers.php
+++ b/third-party/thrift/src/thrift/lib/hack/src/ThriftStreamingSerializationHelpers.php
@@ -1,5 +1,20 @@
 <?hh
-// (c) Meta Platforms, Inc. and affiliates. Confidential and proprietary.
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
 
 final abstract class ThriftStreamingSerializationHelpers {
 
diff --git a/third-party/thrift/src/thrift/lib/hack/src/__tests__/ThriftBacktraceEventHandlerTest.php b/third-party/thrift/src/thrift/lib/hack/src/__tests__/ThriftBacktraceEventHandlerTest.php
index 71dc7a1caef613..7b1869b19a02f2 100644
--- a/third-party/thrift/src/thrift/lib/hack/src/__tests__/ThriftBacktraceEventHandlerTest.php
+++ b/third-party/thrift/src/thrift/lib/hack/src/__tests__/ThriftBacktraceEventHandlerTest.php
@@ -1,5 +1,20 @@
 <?hh
-// (c) Meta Platforms, Inc. and affiliates. Confidential and proprietary.
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
 
 <<Oncalls('xdc_artillery')>>
 final class BacktraceClientEventHandlerTest extends WWWTest {
diff --git a/third-party/thrift/src/thrift/lib/hack/src/__tests__/ThriftContextPropHandlerTest.php b/third-party/thrift/src/thrift/lib/hack/src/__tests__/ThriftContextPropHandlerTest.php
index 34fd1057e24a40..8f0c13b350b4d4 100644
--- a/third-party/thrift/src/thrift/lib/hack/src/__tests__/ThriftContextPropHandlerTest.php
+++ b/third-party/thrift/src/thrift/lib/hack/src/__tests__/ThriftContextPropHandlerTest.php
@@ -1,5 +1,20 @@
 <?hh
-// (c) Meta Platforms, Inc. and affiliates. Confidential and proprietary.
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
 
 <<Oncalls('thrift')>>
 final class ThriftContextPropHandlerTest extends WWWTest {
diff --git a/third-party/thrift/src/thrift/lib/hack/src/__tests__/ThriftContextPropServerEventHandlerTest.php b/third-party/thrift/src/thrift/lib/hack/src/__tests__/ThriftContextPropServerEventHandlerTest.php
index c46c3f7f7b5df9..0e85e4f03cfa84 100644
--- a/third-party/thrift/src/thrift/lib/hack/src/__tests__/ThriftContextPropServerEventHandlerTest.php
+++ b/third-party/thrift/src/thrift/lib/hack/src/__tests__/ThriftContextPropServerEventHandlerTest.php
@@ -1,5 +1,20 @@
 <?hh
-// (c) Meta Platforms, Inc. and affiliates. Confidential and proprietary.
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
 
 <<Oncalls('xdc_artillery')>>
 final class ThriftContextPropServerEventHandlerTest extends WWWTest {
diff --git a/third-party/thrift/src/thrift/lib/hack/src/__tests__/ThriftContextPropStateTest.php b/third-party/thrift/src/thrift/lib/hack/src/__tests__/ThriftContextPropStateTest.php
index 4590a6fbea20e7..130081d09b7264 100644
--- a/third-party/thrift/src/thrift/lib/hack/src/__tests__/ThriftContextPropStateTest.php
+++ b/third-party/thrift/src/thrift/lib/hack/src/__tests__/ThriftContextPropStateTest.php
@@ -1,5 +1,20 @@
 <?hh
-// (c) Meta Platforms, Inc. and affiliates. Confidential and proprietary.
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
 
 <<Oncalls('thrift')>>
 final class ThriftContextPropStateTest extends WWWTest {
diff --git a/third-party/thrift/src/thrift/lib/hack/src/__tests__/ThriftImmutableWrapperTest.php b/third-party/thrift/src/thrift/lib/hack/src/__tests__/ThriftImmutableWrapperTest.php
index 4da431dc36ffa3..c6b96b8e4b0176 100644
--- a/third-party/thrift/src/thrift/lib/hack/src/__tests__/ThriftImmutableWrapperTest.php
+++ b/third-party/thrift/src/thrift/lib/hack/src/__tests__/ThriftImmutableWrapperTest.php
@@ -1,5 +1,20 @@
 <?hh
-// (c) Meta Platforms, Inc. and affiliates. Confidential and proprietary.
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
 
 <<Oncalls('signals_infra')>>
 final class ThriftImmutableWrapperTest extends WWWTest {
diff --git a/third-party/thrift/src/thrift/lib/hack/src/__tests__/ThriftPolicyEnforcerTest.php b/third-party/thrift/src/thrift/lib/hack/src/__tests__/ThriftPolicyEnforcerTest.php
index 831c7b182cb7fb..fe9fd98c6c20b0 100644
--- a/third-party/thrift/src/thrift/lib/hack/src/__tests__/ThriftPolicyEnforcerTest.php
+++ b/third-party/thrift/src/thrift/lib/hack/src/__tests__/ThriftPolicyEnforcerTest.php
@@ -1,5 +1,20 @@
 <?hh
-// (c) Meta Platforms, Inc. and affiliates. Confidential and proprietary.
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
 module privacylib;
 
 <<Oncalls('www_privacy_frameworks')>>
diff --git a/third-party/thrift/src/thrift/lib/hack/src/conformance/LazyAny.php b/third-party/thrift/src/thrift/lib/hack/src/conformance/LazyAny.php
index ed95893148a00a..8c5bd9fa6242cf 100644
--- a/third-party/thrift/src/thrift/lib/hack/src/conformance/LazyAny.php
+++ b/third-party/thrift/src/thrift/lib/hack/src/conformance/LazyAny.php
@@ -1,5 +1,20 @@
 <?hh
-// (c) Meta Platforms, Inc. and affiliates. Confidential and proprietary.
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
 
 final class LazyAny implements JsonSerializable {
   const type TData = Either<apache_thrift_Any, IThriftStruct>;
diff --git a/third-party/thrift/src/thrift/lib/hack/src/conformance/ThriftLazyAny.php b/third-party/thrift/src/thrift/lib/hack/src/conformance/ThriftLazyAny.php
index 5b52bbdfa0d33f..53282e6462c1d9 100644
--- a/third-party/thrift/src/thrift/lib/hack/src/conformance/ThriftLazyAny.php
+++ b/third-party/thrift/src/thrift/lib/hack/src/conformance/ThriftLazyAny.php
@@ -1,5 +1,20 @@
 <?hh
-// (c) Meta Platforms, Inc. and affiliates. Confidential and proprietary.
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
 
 final class ThriftLazyAny implements JsonSerializable {
   const type TAnyData = (mixed, ThriftTypeStructAdapter);
diff --git a/third-party/thrift/src/thrift/lib/hack/src/conformance/ThriftTypeInfoCache.php b/third-party/thrift/src/thrift/lib/hack/src/conformance/ThriftTypeInfoCache.php
index 3380556dcbc0bd..f9939fc9d0e0df 100644
--- a/third-party/thrift/src/thrift/lib/hack/src/conformance/ThriftTypeInfoCache.php
+++ b/third-party/thrift/src/thrift/lib/hack/src/conformance/ThriftTypeInfoCache.php
@@ -1,5 +1,20 @@
 <?hh
-// (c) Meta Platforms, Inc. and affiliates. Confidential and proprietary.
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
 
 <<Oncalls('thrift'), DeadCodeBotShouldNotRemoveEntries>>
 final class ThriftTypeInfoCache
diff --git a/third-party/thrift/src/thrift/lib/hack/src/conformance/ThriftTypeRegistry.php b/third-party/thrift/src/thrift/lib/hack/src/conformance/ThriftTypeRegistry.php
index 6007fe428c32cb..bdd73962c719d6 100644
--- a/third-party/thrift/src/thrift/lib/hack/src/conformance/ThriftTypeRegistry.php
+++ b/third-party/thrift/src/thrift/lib/hack/src/conformance/ThriftTypeRegistry.php
@@ -1,5 +1,20 @@
 <?hh
-// (c) Meta Platforms, Inc. and affiliates. Confidential and proprietary.
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
 
 abstract final class ThriftTypeRegistry {
   public static function isHackTypeRegistered(classname<mixed> $cls)[]: bool {
diff --git a/third-party/thrift/src/thrift/lib/hack/src/conformance/ThriftTypeStructAdapter.php b/third-party/thrift/src/thrift/lib/hack/src/conformance/ThriftTypeStructAdapter.php
index e3f18dee966d0d..c7813a931fd7eb 100644
--- a/third-party/thrift/src/thrift/lib/hack/src/conformance/ThriftTypeStructAdapter.php
+++ b/third-party/thrift/src/thrift/lib/hack/src/conformance/ThriftTypeStructAdapter.php
@@ -1,5 +1,20 @@
 <?hh
-// (c) Meta Platforms, Inc. and affiliates. Confidential and proprietary.
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
 
 final class ThriftTypeStructAdapter implements IThriftAdapter {
   const type THackType = this;
diff --git a/third-party/thrift/src/thrift/lib/hack/src/conformance/ThriftTypeUriHashPrefixCache.php b/third-party/thrift/src/thrift/lib/hack/src/conformance/ThriftTypeUriHashPrefixCache.php
index b3e757777db83b..6a7b306bb4a191 100644
--- a/third-party/thrift/src/thrift/lib/hack/src/conformance/ThriftTypeUriHashPrefixCache.php
+++ b/third-party/thrift/src/thrift/lib/hack/src/conformance/ThriftTypeUriHashPrefixCache.php
@@ -1,5 +1,20 @@
 <?hh
-// (c) Meta Platforms, Inc. and affiliates. Confidential and proprietary.
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
 
 <<Oncalls('thrift'), DeadCodeBotShouldNotRemoveEntries>>
 final class ThriftTypeUriHashPrefixCache
diff --git a/third-party/thrift/src/thrift/lib/hack/src/conformance/ThriftUniversalName.php b/third-party/thrift/src/thrift/lib/hack/src/conformance/ThriftUniversalName.php
index fc801129f625cf..b8310b09d17c78 100644
--- a/third-party/thrift/src/thrift/lib/hack/src/conformance/ThriftUniversalName.php
+++ b/third-party/thrift/src/thrift/lib/hack/src/conformance/ThriftUniversalName.php
@@ -1,5 +1,20 @@
 <?hh
-// (c) Meta Platforms, Inc. and affiliates. Confidential and proprietary.
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
 
 abstract final class ThriftUniversalName {
   const THRIFT_SCHEME = "fbthrift://";
diff --git a/third-party/thrift/src/thrift/lib/hack/src/conformance/__tests__/LazyAnyTest.php b/third-party/thrift/src/thrift/lib/hack/src/conformance/__tests__/LazyAnyTest.php
index 03f6c0c35df418..b4247235d2df26 100644
--- a/third-party/thrift/src/thrift/lib/hack/src/conformance/__tests__/LazyAnyTest.php
+++ b/third-party/thrift/src/thrift/lib/hack/src/conformance/__tests__/LazyAnyTest.php
@@ -1,5 +1,20 @@
 <?hh
-// (c) Meta Platforms, Inc. and affiliates. Confidential and proprietary.
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
 
 <<Oncalls('search_topaggr'), Feature('FBApp_Search_IndexServe')>>
 final class LazyAnyTest extends LazyAnyTestBase {
diff --git a/third-party/thrift/src/thrift/lib/hack/src/conformance/__tests__/LazyAnyTestBase.php b/third-party/thrift/src/thrift/lib/hack/src/conformance/__tests__/LazyAnyTestBase.php
index 7c53a56db592d5..9f662242a00943 100644
--- a/third-party/thrift/src/thrift/lib/hack/src/conformance/__tests__/LazyAnyTestBase.php
+++ b/third-party/thrift/src/thrift/lib/hack/src/conformance/__tests__/LazyAnyTestBase.php
@@ -1,5 +1,20 @@
 <?hh
-// (c) Meta Platforms, Inc. and affiliates. Confidential and proprietary.
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
 
 <<Oncalls('search_topaggr'), Feature('FBApp_Search_IndexServe')>>
 abstract class LazyAnyTestBase extends WWWTest {
diff --git a/third-party/thrift/src/thrift/lib/hack/src/conformance/__tests__/ThriftTypeStructAdapterTest.php b/third-party/thrift/src/thrift/lib/hack/src/conformance/__tests__/ThriftTypeStructAdapterTest.php
index cc619a4ecd99a7..83b4a89a575a6f 100644
--- a/third-party/thrift/src/thrift/lib/hack/src/conformance/__tests__/ThriftTypeStructAdapterTest.php
+++ b/third-party/thrift/src/thrift/lib/hack/src/conformance/__tests__/ThriftTypeStructAdapterTest.php
@@ -1,5 +1,20 @@
 <?hh
-// (c) Meta Platforms, Inc. and affiliates. Confidential and proprietary.
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
 
 <<Oncalls('smint')>>
 final class ThriftTypeStructAdapterTest extends WWWTest {
diff --git a/third-party/thrift/src/thrift/lib/hack/src/conformance/__tests__/ThriftUniversalNameTest.php b/third-party/thrift/src/thrift/lib/hack/src/conformance/__tests__/ThriftUniversalNameTest.php
index 7f38faf5d1caab..aba64fe2987dac 100644
--- a/third-party/thrift/src/thrift/lib/hack/src/conformance/__tests__/ThriftUniversalNameTest.php
+++ b/third-party/thrift/src/thrift/lib/hack/src/conformance/__tests__/ThriftUniversalNameTest.php
@@ -1,5 +1,20 @@
 <?hh
-// (c) Meta Platforms, Inc. and affiliates. Confidential and proprietary.
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
 
 <<Oncalls('thrift')>>
 final class ThriftUniversalNameTest extends WWWTest {
diff --git a/third-party/thrift/src/thrift/lib/hack/src/conformance/__tests__/thrift_any/ThriftLazyAnyTest.thrift b/third-party/thrift/src/thrift/lib/hack/src/conformance/__tests__/thrift_any/ThriftLazyAnyTest.thrift
index af49bc3be279bd..903f36de9cee65 100644
--- a/third-party/thrift/src/thrift/lib/hack/src/conformance/__tests__/thrift_any/ThriftLazyAnyTest.thrift
+++ b/third-party/thrift/src/thrift/lib/hack/src/conformance/__tests__/thrift_any/ThriftLazyAnyTest.thrift
@@ -1,3 +1,20 @@
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
 include "thrift/lib/thrift/any.thrift"
 include "thrift/annotation/hack.thrift"
 
diff --git a/third-party/thrift/src/thrift/lib/hack/src/conformance/__tests__/thrift_any/ThriftLazyAnyTestBase.php b/third-party/thrift/src/thrift/lib/hack/src/conformance/__tests__/thrift_any/ThriftLazyAnyTestBase.php
index 0d90ec4d84f43b..54e33e0659dc28 100644
--- a/third-party/thrift/src/thrift/lib/hack/src/conformance/__tests__/thrift_any/ThriftLazyAnyTestBase.php
+++ b/third-party/thrift/src/thrift/lib/hack/src/conformance/__tests__/thrift_any/ThriftLazyAnyTestBase.php
@@ -1,5 +1,20 @@
 <?hh
-// (c) Meta Platforms, Inc. and affiliates. Confidential and proprietary.
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
 
 <<Oncalls('thrift')>>
 abstract class ThriftLazyAnyTestBase<T> extends WWWTest {
diff --git a/third-party/thrift/src/thrift/lib/hack/src/conformance/__tests__/thrift_any/ThriftLazyAnyTests.php b/third-party/thrift/src/thrift/lib/hack/src/conformance/__tests__/thrift_any/ThriftLazyAnyTests.php
index 5c1bbebb32f890..b390b0d289ef4d 100644
--- a/third-party/thrift/src/thrift/lib/hack/src/conformance/__tests__/thrift_any/ThriftLazyAnyTests.php
+++ b/third-party/thrift/src/thrift/lib/hack/src/conformance/__tests__/thrift_any/ThriftLazyAnyTests.php
@@ -1,5 +1,20 @@
 <?hh
-// (c) Meta Platforms, Inc. and affiliates. Confidential and proprietary.
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
 
 <<Oncalls('thrift')>>
 final class ThriftLazyAnyTestForStruct
diff --git a/third-party/thrift/src/thrift/lib/hack/src/contextprop/ExperimentIdContextHandler.php b/third-party/thrift/src/thrift/lib/hack/src/contextprop/ExperimentIdContextHandler.php
index 1f9bfacd8a07ba..a2b51bf0bf7678 100644
--- a/third-party/thrift/src/thrift/lib/hack/src/contextprop/ExperimentIdContextHandler.php
+++ b/third-party/thrift/src/thrift/lib/hack/src/contextprop/ExperimentIdContextHandler.php
@@ -1,5 +1,20 @@
 <?hh
-// (c) Meta Platforms, Inc. and affiliates. Confidential and proprietary.
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
 
 final class ExperimentIdContextHandler implements IContextHandler {
 
diff --git a/third-party/thrift/src/thrift/lib/hack/src/contextprop/IContextHandler.php b/third-party/thrift/src/thrift/lib/hack/src/contextprop/IContextHandler.php
index 7a3b3080634da3..d817f073bf9369 100644
--- a/third-party/thrift/src/thrift/lib/hack/src/contextprop/IContextHandler.php
+++ b/third-party/thrift/src/thrift/lib/hack/src/contextprop/IContextHandler.php
@@ -1,5 +1,20 @@
 <?hh
-// (c) Meta Platforms, Inc. and affiliates. Confidential and proprietary.
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
 
 interface IContextHandler {
   /**
diff --git a/third-party/thrift/src/thrift/lib/hack/src/contextprop/ImmutableThriftContextPropState.php b/third-party/thrift/src/thrift/lib/hack/src/contextprop/ImmutableThriftContextPropState.php
index aa4fbee027bc9a..c6b8fa4f937401 100644
--- a/third-party/thrift/src/thrift/lib/hack/src/contextprop/ImmutableThriftContextPropState.php
+++ b/third-party/thrift/src/thrift/lib/hack/src/contextprop/ImmutableThriftContextPropState.php
@@ -1,5 +1,20 @@
 <?hh
-// (c) Meta Platforms, Inc. and affiliates. Confidential and proprietary.
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
 
 /**
  * Immutable version of ThriftContextPropState. Used in ContextPropV2
diff --git a/third-party/thrift/src/thrift/lib/hack/src/contextprop/ImmutableThriftFrameworkMetadata.php b/third-party/thrift/src/thrift/lib/hack/src/contextprop/ImmutableThriftFrameworkMetadata.php
index 5739eecaab9041..ca750ff583568d 100644
--- a/third-party/thrift/src/thrift/lib/hack/src/contextprop/ImmutableThriftFrameworkMetadata.php
+++ b/third-party/thrift/src/thrift/lib/hack/src/contextprop/ImmutableThriftFrameworkMetadata.php
@@ -1,5 +1,20 @@
 <?hh
-// (c) Meta Platforms, Inc. and affiliates. Confidential and proprietary.
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
 
 /**
  * Immutable version of ThriftFrameworkMetadata. Used in ContextPropV2
diff --git a/third-party/thrift/src/thrift/lib/hack/src/contextprop/ImmutableThriftFrameworkMetadataOnResponse.php b/third-party/thrift/src/thrift/lib/hack/src/contextprop/ImmutableThriftFrameworkMetadataOnResponse.php
index 29bbeef012a2af..c8178dac1f1be1 100644
--- a/third-party/thrift/src/thrift/lib/hack/src/contextprop/ImmutableThriftFrameworkMetadataOnResponse.php
+++ b/third-party/thrift/src/thrift/lib/hack/src/contextprop/ImmutableThriftFrameworkMetadataOnResponse.php
@@ -1,5 +1,20 @@
 <?hh
-// (c) Meta Platforms, Inc. and affiliates. Confidential and proprietary.
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
 
 /**
  * Immutable version of ThriftFrameworkMetadataOnResponse struct. Used in ContextPropV2
diff --git a/third-party/thrift/src/thrift/lib/hack/src/contextprop/ProductIdContextHandler.php b/third-party/thrift/src/thrift/lib/hack/src/contextprop/ProductIdContextHandler.php
index e2e99ef6cc4bbc..73aeac917f3850 100644
--- a/third-party/thrift/src/thrift/lib/hack/src/contextprop/ProductIdContextHandler.php
+++ b/third-party/thrift/src/thrift/lib/hack/src/contextprop/ProductIdContextHandler.php
@@ -1,5 +1,20 @@
 <?hh
-// (c) Meta Platforms, Inc. and affiliates. Confidential and proprietary.
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
 
 final class ProductIdContextHandler implements IContextHandler {
 
diff --git a/third-party/thrift/src/thrift/lib/hack/src/contextprop/TContextPropV2ClientHandler.php b/third-party/thrift/src/thrift/lib/hack/src/contextprop/TContextPropV2ClientHandler.php
index 21b44269187f9c..bc9ac9306f4d73 100644
--- a/third-party/thrift/src/thrift/lib/hack/src/contextprop/TContextPropV2ClientHandler.php
+++ b/third-party/thrift/src/thrift/lib/hack/src/contextprop/TContextPropV2ClientHandler.php
@@ -1,5 +1,20 @@
 <?hh
-// (c) Meta Platforms, Inc. and affiliates. Confidential and proprietary.
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
 
 type ClientInstrumentationParams = shape(
   ?'service_name' => string,
diff --git a/third-party/thrift/src/thrift/lib/hack/src/contextprop/ThriftContextPropHandlers.php b/third-party/thrift/src/thrift/lib/hack/src/contextprop/ThriftContextPropHandlers.php
index 6e245c5ba66c14..d83e8c70639768 100644
--- a/third-party/thrift/src/thrift/lib/hack/src/contextprop/ThriftContextPropHandlers.php
+++ b/third-party/thrift/src/thrift/lib/hack/src/contextprop/ThriftContextPropHandlers.php
@@ -1,5 +1,20 @@
 <?hh
-// (c) Meta Platforms, Inc. and affiliates. Confidential and proprietary.
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
 
 /**
  * Helper class to install the right context prop thrift handlers based on
diff --git a/third-party/thrift/src/thrift/lib/hack/src/contextprop/ThriftFrameworkMetadataUtils.php b/third-party/thrift/src/thrift/lib/hack/src/contextprop/ThriftFrameworkMetadataUtils.php
index 3127b28fcbead7..9731d1f88ecff0 100644
--- a/third-party/thrift/src/thrift/lib/hack/src/contextprop/ThriftFrameworkMetadataUtils.php
+++ b/third-party/thrift/src/thrift/lib/hack/src/contextprop/ThriftFrameworkMetadataUtils.php
@@ -1,5 +1,20 @@
 <?hh
-// (c) Meta Platforms, Inc. and affiliates. Confidential and proprietary.
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
 
 abstract final class ThriftFrameworkMetadataUtils {
 
diff --git a/third-party/thrift/src/thrift/lib/hack/src/contextprop/UpdateUniverseContextHandler.php b/third-party/thrift/src/thrift/lib/hack/src/contextprop/UpdateUniverseContextHandler.php
index 734e8d1d45f074..122df1f618d49b 100644
--- a/third-party/thrift/src/thrift/lib/hack/src/contextprop/UpdateUniverseContextHandler.php
+++ b/third-party/thrift/src/thrift/lib/hack/src/contextprop/UpdateUniverseContextHandler.php
@@ -1,5 +1,20 @@
 <?hh
-// (c) Meta Platforms, Inc. and affiliates. Confidential and proprietary.
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
 
 final class UpdateUniverseContextHandler implements IContextHandler {
   use TThriftPoliciedOptOutList;
diff --git a/third-party/thrift/src/thrift/lib/hack/src/contextprop/__tests__/ExperimentIdContextHandlerTest.php b/third-party/thrift/src/thrift/lib/hack/src/contextprop/__tests__/ExperimentIdContextHandlerTest.php
index 4c75e1d36a2780..991823a9519f24 100644
--- a/third-party/thrift/src/thrift/lib/hack/src/contextprop/__tests__/ExperimentIdContextHandlerTest.php
+++ b/third-party/thrift/src/thrift/lib/hack/src/contextprop/__tests__/ExperimentIdContextHandlerTest.php
@@ -1,5 +1,20 @@
 <?hh
-// (c) Meta Platforms, Inc. and affiliates. Confidential and proprietary.
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
 
 <<Oncalls('xdc_artillery')>>
 final class ExperimentIdContextHandlerTest extends WWWTest {
diff --git a/third-party/thrift/src/thrift/lib/hack/src/contextprop/__tests__/ProductIdContextHandlerTest.php b/third-party/thrift/src/thrift/lib/hack/src/contextprop/__tests__/ProductIdContextHandlerTest.php
index 04032fcdede29e..c1864bbeac7043 100644
--- a/third-party/thrift/src/thrift/lib/hack/src/contextprop/__tests__/ProductIdContextHandlerTest.php
+++ b/third-party/thrift/src/thrift/lib/hack/src/contextprop/__tests__/ProductIdContextHandlerTest.php
@@ -1,5 +1,20 @@
 <?hh
-// (c) Meta Platforms, Inc. and affiliates. Confidential and proprietary.
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
 
 <<Oncalls('xdc_artillery')>>
 final class ProductIdContextHandlerTest extends WWWTest {
diff --git a/third-party/thrift/src/thrift/lib/hack/src/contextprop/__tests__/UpdateUniverseContextHandlerTest.php b/third-party/thrift/src/thrift/lib/hack/src/contextprop/__tests__/UpdateUniverseContextHandlerTest.php
index 99e19343263008..063ce0a668ef1f 100644
--- a/third-party/thrift/src/thrift/lib/hack/src/contextprop/__tests__/UpdateUniverseContextHandlerTest.php
+++ b/third-party/thrift/src/thrift/lib/hack/src/contextprop/__tests__/UpdateUniverseContextHandlerTest.php
@@ -1,5 +1,20 @@
 <?hh
-// (c) Meta Platforms, Inc. and affiliates. Confidential and proprietary.
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
 
 <<Oncalls('xdc_artillery')>>
 final class UpdateUniverseContextHandlerTest
diff --git a/third-party/thrift/src/thrift/lib/hack/src/protocol/__tests__/AdapterTest.thrift b/third-party/thrift/src/thrift/lib/hack/src/protocol/__tests__/AdapterTest.thrift
index afc4c7cd20e777..937865b917cd5d 100644
--- a/third-party/thrift/src/thrift/lib/hack/src/protocol/__tests__/AdapterTest.thrift
+++ b/third-party/thrift/src/thrift/lib/hack/src/protocol/__tests__/AdapterTest.thrift
@@ -1,3 +1,20 @@
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
 package "meta.com/thrift/adapter_test"
 
 namespace hack AdapterTest
diff --git a/third-party/thrift/src/thrift/lib/hack/src/protocol/__tests__/CompactTest.thrift b/third-party/thrift/src/thrift/lib/hack/src/protocol/__tests__/CompactTest.thrift
index a53242ecd9d10e..57dc38e92243e9 100644
--- a/third-party/thrift/src/thrift/lib/hack/src/protocol/__tests__/CompactTest.thrift
+++ b/third-party/thrift/src/thrift/lib/hack/src/protocol/__tests__/CompactTest.thrift
@@ -1,3 +1,20 @@
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
 include "thrift/annotation/thrift.thrift"
 package "meta.com/thrift/core/protocol/_tests_/compact_test"
 
diff --git a/third-party/thrift/src/thrift/lib/hack/src/protocol/__tests__/FieldWrapperTest.thrift b/third-party/thrift/src/thrift/lib/hack/src/protocol/__tests__/FieldWrapperTest.thrift
index 481209d68aee9c..f8d96fcbd0e8d7 100644
--- a/third-party/thrift/src/thrift/lib/hack/src/protocol/__tests__/FieldWrapperTest.thrift
+++ b/third-party/thrift/src/thrift/lib/hack/src/protocol/__tests__/FieldWrapperTest.thrift
@@ -1,3 +1,20 @@
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
 include "thrift/annotation/hack.thrift"
 include "thrift/annotation/scope.thrift"
 
diff --git a/third-party/thrift/src/thrift/lib/hack/src/protocol/__tests__/ProtocolTest.thrift b/third-party/thrift/src/thrift/lib/hack/src/protocol/__tests__/ProtocolTest.thrift
index d9957d1f020e4d..bd4f487568bc93 100644
--- a/third-party/thrift/src/thrift/lib/hack/src/protocol/__tests__/ProtocolTest.thrift
+++ b/third-party/thrift/src/thrift/lib/hack/src/protocol/__tests__/ProtocolTest.thrift
@@ -1,3 +1,20 @@
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
 include "thrift/annotation/thrift.thrift"
 package "meta.com/thrift/core/protocol/_tests_/protocol_test"
 
diff --git a/third-party/thrift/src/thrift/lib/hack/src/protocol/__tests__/SerializationTest.php b/third-party/thrift/src/thrift/lib/hack/src/protocol/__tests__/SerializationTest.php
index 29575a9b5edc94..98532260259ea7 100644
--- a/third-party/thrift/src/thrift/lib/hack/src/protocol/__tests__/SerializationTest.php
+++ b/third-party/thrift/src/thrift/lib/hack/src/protocol/__tests__/SerializationTest.php
@@ -1,5 +1,20 @@
 <?hh
-// (c) Meta Platforms, Inc. and affiliates. Confidential and proprietary.
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
 /*
  * Copyright (c) Meta Platforms, Inc. and affiliates.
  *
diff --git a/third-party/thrift/src/thrift/lib/hack/src/protocol/__tests__/TSimpleJSONProtocolTest.thrift b/third-party/thrift/src/thrift/lib/hack/src/protocol/__tests__/TSimpleJSONProtocolTest.thrift
index 84d53abd97893f..0efea030e6c434 100644
--- a/third-party/thrift/src/thrift/lib/hack/src/protocol/__tests__/TSimpleJSONProtocolTest.thrift
+++ b/third-party/thrift/src/thrift/lib/hack/src/protocol/__tests__/TSimpleJSONProtocolTest.thrift
@@ -1,3 +1,20 @@
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
 package "meta.com/t_simple_json_protocol_test"
 
 namespace php TSimpleJSONProtocolTest
diff --git a/third-party/thrift/src/thrift/lib/hack/src/protocol/__tests__/TypeAndStructWrapperAnnotationTest.thrift b/third-party/thrift/src/thrift/lib/hack/src/protocol/__tests__/TypeAndStructWrapperAnnotationTest.thrift
index 309b92f6dca2d8..2d579ed7ab0d84 100644
--- a/third-party/thrift/src/thrift/lib/hack/src/protocol/__tests__/TypeAndStructWrapperAnnotationTest.thrift
+++ b/third-party/thrift/src/thrift/lib/hack/src/protocol/__tests__/TypeAndStructWrapperAnnotationTest.thrift
@@ -1,3 +1,20 @@
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
 include "thrift/annotation/hack.thrift"
 
 package "meta.com/thrift/wrapper_test"
diff --git a/third-party/thrift/src/thrift/lib/hack/src/protocol/__tests__/TypeAndStructWrapperConstantsTest.thrift b/third-party/thrift/src/thrift/lib/hack/src/protocol/__tests__/TypeAndStructWrapperConstantsTest.thrift
index ced13792619274..5a3371cd1bce4d 100644
--- a/third-party/thrift/src/thrift/lib/hack/src/protocol/__tests__/TypeAndStructWrapperConstantsTest.thrift
+++ b/third-party/thrift/src/thrift/lib/hack/src/protocol/__tests__/TypeAndStructWrapperConstantsTest.thrift
@@ -1,3 +1,20 @@
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
 include "TypeAndStructWrapperTest.thrift"
 
 package "meta.com/thrift/wrapper_test"
diff --git a/third-party/thrift/src/thrift/lib/hack/src/protocol/__tests__/TypeAndStructWrapperTest.thrift b/third-party/thrift/src/thrift/lib/hack/src/protocol/__tests__/TypeAndStructWrapperTest.thrift
index a903bcac7d849d..d8efb5605b045b 100644
--- a/third-party/thrift/src/thrift/lib/hack/src/protocol/__tests__/TypeAndStructWrapperTest.thrift
+++ b/third-party/thrift/src/thrift/lib/hack/src/protocol/__tests__/TypeAndStructWrapperTest.thrift
@@ -1,3 +1,20 @@
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
 include "thrift/annotation/hack.thrift"
 include "thrift/annotation/scope.thrift"
 
diff --git a/third-party/thrift/src/thrift/lib/hack/src/protocol/__tests__/TypeAndStructWrapperTestModule.thrift b/third-party/thrift/src/thrift/lib/hack/src/protocol/__tests__/TypeAndStructWrapperTestModule.thrift
index 7ea8fc8ff264dd..dde30924a71292 100644
--- a/third-party/thrift/src/thrift/lib/hack/src/protocol/__tests__/TypeAndStructWrapperTestModule.thrift
+++ b/third-party/thrift/src/thrift/lib/hack/src/protocol/__tests__/TypeAndStructWrapperTestModule.thrift
@@ -1,3 +1,20 @@
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
 include "TypeAndStructWrapperTest.thrift"
 include "thrift/annotation/hack.thrift"
 
diff --git a/third-party/thrift/src/thrift/lib/hack/src/protocol/__tests__/wrappers/TypeAndStructTestWrappers.php b/third-party/thrift/src/thrift/lib/hack/src/protocol/__tests__/wrappers/TypeAndStructTestWrappers.php
index 39427113753544..fc62527e73f46e 100644
--- a/third-party/thrift/src/thrift/lib/hack/src/protocol/__tests__/wrappers/TypeAndStructTestWrappers.php
+++ b/third-party/thrift/src/thrift/lib/hack/src/protocol/__tests__/wrappers/TypeAndStructTestWrappers.php
@@ -1,5 +1,20 @@
 <?hh
-// (c) Meta Platforms, Inc. and affiliates. Confidential and proprietary.
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
 
 final class MyTypeWrapper<TThriftType>
   extends \IThriftTypeWrapper<TThriftType> {
diff --git a/third-party/thrift/src/thrift/lib/hack/src/transport/TChunkedMemoryBuffer.php b/third-party/thrift/src/thrift/lib/hack/src/transport/TChunkedMemoryBuffer.php
index 8310d9932d0b94..4753ddccf762fb 100644
--- a/third-party/thrift/src/thrift/lib/hack/src/transport/TChunkedMemoryBuffer.php
+++ b/third-party/thrift/src/thrift/lib/hack/src/transport/TChunkedMemoryBuffer.php
@@ -1,5 +1,20 @@
 <?hh
-// (c) Meta Platforms, Inc. and affiliates. Confidential and proprietary.
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
 
 /**
  * You should probably use TMemoryBuffer instead.
diff --git a/third-party/thrift/src/thrift/lib/hack/src/transport/TWritePropsTransport.php b/third-party/thrift/src/thrift/lib/hack/src/transport/TWritePropsTransport.php
index 321a4991a7f9de..fadff2a8bdf154 100644
--- a/third-party/thrift/src/thrift/lib/hack/src/transport/TWritePropsTransport.php
+++ b/third-party/thrift/src/thrift/lib/hack/src/transport/TWritePropsTransport.php
@@ -1,5 +1,20 @@
 <?hh
-// (c) Meta Platforms, Inc. and affiliates. Confidential and proprietary.
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
 
 abstract class TWritePropsTransport extends TTransport {
   <<__Override>>
diff --git a/third-party/thrift/src/thrift/lib/hack/src/transport/__tests__/TChunkedMemoryBufferTest.php b/third-party/thrift/src/thrift/lib/hack/src/transport/__tests__/TChunkedMemoryBufferTest.php
index 18da9b5891efc4..61d6fe2b0ef738 100644
--- a/third-party/thrift/src/thrift/lib/hack/src/transport/__tests__/TChunkedMemoryBufferTest.php
+++ b/third-party/thrift/src/thrift/lib/hack/src/transport/__tests__/TChunkedMemoryBufferTest.php
@@ -1,5 +1,20 @@
 <?hh
-// (c) Meta Platforms, Inc. and affiliates. Confidential and proprietary.
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
 
 <<Oncalls('thrift')>>
 final class TChunkedMemoryBufferTest extends WWWTest {
diff --git a/third-party/thrift/src/thrift/lib/hack/src/transport/__tests__/TFileStreamTest.php b/third-party/thrift/src/thrift/lib/hack/src/transport/__tests__/TFileStreamTest.php
index 58ceeab2cf78fe..c2bf1f5ce303c8 100644
--- a/third-party/thrift/src/thrift/lib/hack/src/transport/__tests__/TFileStreamTest.php
+++ b/third-party/thrift/src/thrift/lib/hack/src/transport/__tests__/TFileStreamTest.php
@@ -1,5 +1,20 @@
 <?hh
-// (c) Meta Platforms, Inc. and affiliates. Confidential and proprietary.
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
 
 <<Oncalls('thrift')>>
 final class TFileStreamTest extends WWWTest {