diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9fbf034391c44d5edb99667fcf86bb188ff32fff..05ca99c34d4a28ef426578e98b0090a216117521 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -18,6 +18,14 @@ This changelog aims to follow the guiding principles of
 ### Added
 - Median Blur for 5x5 and 7x7 kernels.
 - Gaussian Blur for 21x21 kernels.
+- Support for GCC 8.4.
+- C example.
+
+### Changed
+- Multithreaded dispatching in the OpenCV HAL of convertScale.
+
+### Fixed
+- Inplace operation of kleidicv_scale_f32.
 
 ## 0.4.0 - 2025-03-25
 
diff --git a/doc/build.md b/doc/build.md
index b174a32f163d67c102728130129281cca3a61ef3..5e35f18b2494239e6e5e15ec3d620101626c8a98 100644
--- a/doc/build.md
+++ b/doc/build.md
@@ -86,7 +86,7 @@ documentation for cross-building instructions.
 
 ## Prerequisites
 To successfully build and compile this project for AArch64 Linux, you'll need the following tools:
-- Either GCC 9.4 or higher, or Clang 12 or higher.
+- Either GCC 8.4 or higher, or Clang 12 or higher.
 - Binutils
 - [CMake](https://cmake.org) 3.16 or higher.
 - `make`
diff --git a/kleidicv/CMakeLists.txt b/kleidicv/CMakeLists.txt
index ff6a1cb47e77fc0eeb3a6e24936dda8e603eb082..d901c7cc84005900c2d5f9e80ed1e5c7917924a1 100644
--- a/kleidicv/CMakeLists.txt
+++ b/kleidicv/CMakeLists.txt
@@ -127,6 +127,15 @@ elseif(CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
     "-flax-vector-conversions"
     "-Wno-unused-label"
   )
+  # Some warnings are too sensitive in older GCC versions
+  if(CMAKE_CXX_COMPILER_VERSION VERSION_LESS 10)
+    list(APPEND KLEIDICV_CXX_FLAGS
+      "-Wno-unused-parameter"
+      "-Wno-unused-but-set-parameter"
+      "-Wno-maybe-uninitialized"
+      "-Wno-unused-but-set-variable"
+    )
+  endif()
 endif()
 
 if (KLEIDICV_CHECK_BANNED_FUNCTIONS)
diff --git a/kleidicv_thread/CMakeLists.txt b/kleidicv_thread/CMakeLists.txt
index 73a4b1c7e4c2cfcafddaf4ac107bd9ab8c8f6889..0710a5300db6fb7ed77e6ec23ba9d9eb60e2869b 100644
--- a/kleidicv_thread/CMakeLists.txt
+++ b/kleidicv_thread/CMakeLists.txt
@@ -1,4 +1,4 @@
-# SPDX-FileCopyrightText: 2024 Arm Limited and/or its affiliates <open-source-office@arm.com>
+# SPDX-FileCopyrightText: 2024 - 2025 Arm Limited and/or its affiliates <open-source-office@arm.com>
 #
 # SPDX-License-Identifier: Apache-2.0
 
@@ -19,6 +19,16 @@ set(KLEIDICV_THREAD_CXX_FLAGS
   "-Wno-shadow" # GCC's shadow declaration check is too sensitive for the library
 )
 
+# Some warnings are too sensitive in older GCC versions
+if(CMAKE_CXX_COMPILER_ID STREQUAL "GNU" AND CMAKE_CXX_COMPILER_VERSION VERSION_LESS 10)
+  list(APPEND KLEIDICV_THREAD_CXX_FLAGS
+    "-Wno-unused-parameter"
+    "-Wno-unused-but-set-parameter"
+    "-Wno-maybe-uninitialized"
+    "-Wno-unused-but-set-variable"
+  )
+endif()
+
 if (KLEIDICV_CHECK_BANNED_FUNCTIONS)
   # The `SHELL:` prefix is used to turn off de-duplication of compiler flags,
   # it is necessary if other headers need to be force included.