Merge 5 release notes into RELEASE_NOTES.md

Change-Id: I7177215f838de4ed8a4fda9960a8f63627c3d9ee
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/1049138
Reviewed-by: Heather Miller <hcm@google.com>
diff --git a/RELEASE_NOTES.md b/RELEASE_NOTES.md
index 1d31874..48df30f 100644
--- a/RELEASE_NOTES.md
+++ b/RELEASE_NOTES.md
@@ -2,6 +2,28 @@
 
 This file includes a list of high level updates for each milestone release.
 
+Milestone 141
+-------------
+  * `GrAHardwareBufferUtils::GetSkColorTypeFromBufferFormat` is replaced by
+    `AHardwareBufferUtils::GetSkColorTypeFromBufferFormat`, which is shared between Graphite and Ganesh.
+  * Graphite's `ContextOptions` struct now has an `fExecutor` member. This allows clients to give Graphite threads on which it can perform work. Initially, this facility will be used to compile Pipelines in parallel.
+  * Change `SkNamedTransferFn::kHLG` and `SkNamedTransferFn::kPQ` to use the
+    new skcms representations.
+
+    This will have the side-effect of changing `SkColorSpace::MakeCICP` to
+    use the new representations.
+  * ##`SkPath::asArc() removed`
+
+    This method reported true if the path was internally recognized as an "Arc" segment.
+    This functionality is now removed, so the method has also been removed.
+  * `SkShader::makeWithWorkingColorSpace()` now accepts an optional output
+    colorspace parameter. If it is null (the default), it's assumed to be the same
+    as the input or working colorspace parameter. This allows shaders to actively
+    participate in colorspace conversion and inform Skia about the space changes
+    that they apply.
+
+* * *
+
 Milestone 140
 -------------
   * `Context::insertRecording` now returns an object that behaves like an enum or a true/false bool
diff --git a/relnotes/color_type_from_buffer_format_update.md b/relnotes/color_type_from_buffer_format_update.md
deleted file mode 100644
index 4de70cb..0000000
--- a/relnotes/color_type_from_buffer_format_update.md
+++ /dev/null
@@ -1,2 +0,0 @@
-`GrAHardwareBufferUtils::GetSkColorTypeFromBufferFormat` is replaced by
-`AHardwareBufferUtils::GetSkColorTypeFromBufferFormat`, which is shared between Graphite and Ganesh.
diff --git a/relnotes/context_options_executor.md b/relnotes/context_options_executor.md
deleted file mode 100644
index 06938b8..0000000
--- a/relnotes/context_options_executor.md
+++ /dev/null
@@ -1 +0,0 @@
-Graphite's `ContextOptions` struct now has an `fExecutor` member. This allows clients to give Graphite threads on which it can perform work. Initially, this facility will be used to compile Pipelines in parallel.
diff --git a/relnotes/hlg-pq-v2.md b/relnotes/hlg-pq-v2.md
deleted file mode 100644
index 71063bb..0000000
--- a/relnotes/hlg-pq-v2.md
+++ /dev/null
@@ -1,5 +0,0 @@
-Change `SkNamedTransferFn::kHLG` and `SkNamedTransferFn::kPQ` to use the
-new skcms representations.
-
-This will have the side-effect of changing `SkColorSpace::MakeCICP` to
-use the new representations.
diff --git a/relnotes/path_asarc_removed.md b/relnotes/path_asarc_removed.md
deleted file mode 100644
index 80f8ea0..0000000
--- a/relnotes/path_asarc_removed.md
+++ /dev/null
@@ -1,4 +0,0 @@
-##`SkPath::asArc() removed`
-
-This method reported true if the path was internally recognized as an "Arc" segment.
-This functionality is now removed, so the method has also been removed.
diff --git a/relnotes/shader_working_colorspace.md b/relnotes/shader_working_colorspace.md
deleted file mode 100644
index 4d0f7d8..0000000
--- a/relnotes/shader_working_colorspace.md
+++ /dev/null
@@ -1,5 +0,0 @@
-`SkShader::makeWithWorkingColorSpace()` now accepts an optional output
-colorspace parameter. If it is null (the default), it's assumed to be the same
-as the input or working colorspace parameter. This allows shaders to actively
-participate in colorspace conversion and inform Skia about the space changes
-that they apply.