diff --git a/3rdparty/flac b/3rdparty/flac
index a01948c..28e4f05 160000
--- a/3rdparty/flac
+++ b/3rdparty/flac
@@ -1 +1 @@
-Subproject commit a01948c29accb3760567ec90b3dd806efba4908a
+Subproject commit 28e4f0528c76b296c561e922ba67d43751990599
diff --git a/3rdparty/flac.cmake b/3rdparty/flac.cmake
index faa6023..f5d5225 100644
--- a/3rdparty/flac.cmake
+++ b/3rdparty/flac.cmake
@@ -8,7 +8,7 @@
 #    set(CMAKE_BUILD_TYPE Release CACHE STRING "Choose the type of build, options are: None Debug Release RelWithDebInfo")
 #endif()
 
-set(FLAC_VERSION 1.3.3) # HOMEPAGE_URL "https://www.xiph.org/flac/")
+set(FLAC_VERSION 1.4.3) # HOMEPAGE_URL "https://www.xiph.org/flac/")
 
 message(STATUS "FLAC VERSION: ${FLAC_VERSION}")
 set(BUILD_SHARED_LIBS BOOL OFF)
@@ -23,7 +23,11 @@ set(PROJECT_SOURCE_DIR "${PROJECT_SOURCE_DIR}/3rdparty/flac/")
 #set(HAVE_ICONV ${Iconv_FOUND})
 
 #if(CMAKE_C_COMPILER_ID MATCHES "GNU|Clang")
-#    set(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} -O3 -funroll-loops")
+#    set(CMAKE_C_FLAGS_RELEASE "-O3 -funroll-loops ${CMAKE_C_FLAGS_RELEASE}")
+#    set(CMAKE_C_FLAGS_RELEASE "-DNDEBUG ${CMAKE_C_FLAGS_RELEASE}")
+#endif()
+#if(MSVC)
+#    set(CMAKE_C_FLAGS_RELEASE "/O2 /Ob2 /Oi /Ot /Oy ${CMAKE_C_FLAGS_RELEASE}")
 #endif()
 
 include(CMakePackageConfigHelpers)
@@ -42,33 +46,46 @@ include(TestBigEndian)
 check_include_file("byteswap.h" HAVE_BYTESWAP_H)
 check_include_file("inttypes.h" HAVE_INTTYPES_H)
 check_include_file("stdint.h" HAVE_STDINT_H)
-if(MSVC)
+check_include_file("stdbool.h" HAVE_STDBOOL_H)
+check_include_file("arm_neon.h" FLAC__HAS_NEONINTRIN)
+check_include_file("semaphore.h" HAVE_SEMAPHORE_H)
+
+if (NOT HAVE_STDINT_H OR NOT HAVE_STDBOOL_H)
+    message(SEND_ERROR "Header stdint.h and/or stdbool.h not found")
+endif ()
+
+if (MSVC)
     check_include_file("intrin.h" FLAC__HAS_X86INTRIN)
-else()
+else ()
     check_include_file("x86intrin.h" FLAC__HAS_X86INTRIN)
-endif()
+endif ()
 
 #check_function_exists(fseeko HAVE_FSEEKO)
 
 check_c_source_compiles("int main() { return __builtin_bswap16 (0) ; }" HAVE_BSWAP16)
 check_c_source_compiles("int main() { return __builtin_bswap32 (0) ; }" HAVE_BSWAP32)
 
-if(NOT "${CMAKE_C_PLATFORM_ID}" MATCHES "MinGW" OR (NOT ${CMAKE_SYSTEM_PROCESSOR} MATCHES "arm" AND NOT ${CMAKE_SYSTEM_PROCESSOR} MATCHES "aarch64"))
+if (NOT "${CMAKE_C_PLATFORM_ID}" MATCHES "MinGW" OR (NOT ${CMAKE_SYSTEM_PROCESSOR} MATCHES "arm" AND NOT ${CMAKE_SYSTEM_PROCESSOR} MATCHES "aarch64"))
     test_big_endian(CPU_IS_BIG_ENDIAN)
-endif()
+endif ()
 
 check_c_compiler_flag(-mstackrealign HAVE_STACKREALIGN_FLAG)
 
+if (CMAKE_SYSTEM_PROCESSOR STREQUAL "i686" AND HAVE_STACKREALIGN_FLAG)
+    add_compile_options(-mstackrealign)
+    add_compile_options($<$<OR:$<COMPILE_LANGUAGE:C>,$<COMPILE_LANGUAGE:CXX>>:-mstackrealign>)
+endif ()
+
 include_directories("3rdparty/flac/include")
 
 include_directories("${CMAKE_CURRENT_BINARY_DIR}/3rdparty/flac")
 add_definitions(-DHAVE_CONFIG_H)
 
-if(MSVC)
+if (MSVC)
     add_definitions(
             -D_CRT_SECURE_NO_WARNINGS
             -D_USE_MATH_DEFINES)
-endif()
+endif ()
 
 option(WITH_ASM "Use any assembly optimization routines" ON)
 
@@ -80,93 +97,94 @@ check_function_exists(lround HAVE_LROUND)
 
 include(CheckCSourceCompiles)
 include(CheckCPUArch)
+include(CheckA64NEON)
 
 check_cpu_arch_x64(FLAC__CPU_X86_64)
-if(NOT FLAC__CPU_X86_64)
+if (NOT FLAC__CPU_X86_64)
     check_cpu_arch_x86(FLAC__CPU_IA32)
-endif()
+endif ()
 
-if(FLAC__CPU_X86_64 OR FLAC__CPU_IA32)
+if (FLAC__CPU_X86_64 OR FLAC__CPU_IA32)
     set(FLAC__ALIGN_MALLOC_DATA 1)
-    option(WITH_AVX "Enable AVX, AVX2 optimizations" ON)
-endif()
+    option(WITH_AVX "Enable AVX, AVX2 optimizations (with runtime detection, resulting binary does not require AVX2, so only necessary when a compiler doesn't know about AVX)" ON)
+    if (WITH_AVX AND MSVC)
+        set_source_files_properties(fixed_intrin_avx2.c lpc_intrin_avx2.c stream_encoder_intrin_avx2.c PROPERTIES COMPILE_FLAGS /arch:AVX2)
+        set_source_files_properties(lpc_intrin_fma.c PROPERTIES COMPILE_FLAGS "/arch:AVX2 /fp:fast")
+    endif ()
+    if (WITH_AVX AND (CMAKE_C_COMPILER_ID MATCHES "Clang"))
+        set_source_files_properties(lpc_intrin_fma.c PROPERTIES COMPILE_FLAGS "-ffast-math")
+    endif ()
+else ()
+    if (FLAC__CPU_ARM64)
+        check_a64neon(FLAC__HAS_A64NEONINTRIN)
+    endif ()
+endif ()
 
-# TODO: Fix linking
-#include(CheckLanguage)
-#check_language(ASM_NASM)
-#if(CMAKE_ASM_NASM_COMPILER)
-#    enable_language(ASM_NASM)
-#    add_definitions(-DFLAC__HAS_NASM)
-#endif()
-
-if(NOT WITH_ASM)
+if (NOT WITH_ASM)
     add_definitions(-DFLAC__NO_ASM)
-endif()
+endif ()
 
-if(FLAC__CPU_IA32)
-    if(WITH_ASM AND CMAKE_ASM_NASM_COMPILER)
-        add_subdirectory(3rdparty/flac/src/libFLAC/ia32)
-    endif()
-
-    option(WITH_SSE "Enable SSE2 optimizations" ON)
-    check_c_compiler_flag(-msse2 HAVE_MSSE2_FLAG)
-    if(WITH_SSE)
-        add_compile_options(
-                $<$<BOOL:${HAVE_MSSE2_FLAG}>:-msse2>
-                $<$<BOOL:${MSVC}>:/arch:SSE2>)
-    endif()
-endif()
+if (HAVE_SEMAPHORE_H)
+    set(CMAKE_THREAD_PREFER_PTHREAD TRUE)
+    set(THREADS_PREFER_PTHREAD_FLAG TRUE)
+    find_package(Threads)
+    if (CMAKE_USE_PTHREADS_INIT)
+        set(HAVE_PTHREAD 1)
+    endif ()
+endif ()
 
 include_directories("3rdparty/flac/src/libFLAC/include")
 
 target_sources("Aaru.Compression.Native" PRIVATE
-               3rdparty/flac/src/libFLAC/bitmath.c
-               3rdparty/flac/src/libFLAC/bitreader.c
-               3rdparty/flac/src/libFLAC/bitwriter.c
-               3rdparty/flac/src/libFLAC/cpu.c
-               3rdparty/flac/src/libFLAC/crc.c
-               3rdparty/flac/src/libFLAC/fixed.c
-               3rdparty/flac/src/libFLAC/fixed_intrin_sse2.c
-               3rdparty/flac/src/libFLAC/fixed_intrin_ssse3.c
-               3rdparty/flac/src/libFLAC/float.c
-               3rdparty/flac/src/libFLAC/format.c
-               3rdparty/flac/src/libFLAC/lpc.c
-               3rdparty/flac/src/libFLAC/lpc_intrin_sse.c
-               3rdparty/flac/src/libFLAC/lpc_intrin_sse2.c
-               3rdparty/flac/src/libFLAC/lpc_intrin_sse41.c
-               3rdparty/flac/src/libFLAC/lpc_intrin_avx2.c
-               3rdparty/flac/src/libFLAC/lpc_intrin_vsx.c
-               3rdparty/flac/src/libFLAC/md5.c
-               3rdparty/flac/src/libFLAC/memory.c
-               3rdparty/flac/src/libFLAC/metadata_iterators.c
-               3rdparty/flac/src/libFLAC/metadata_object.c
-               3rdparty/flac/src/libFLAC/stream_decoder.c
-               3rdparty/flac/src/libFLAC/stream_encoder.c
-               3rdparty/flac/src/libFLAC/stream_encoder_intrin_sse2.c
-               3rdparty/flac/src/libFLAC/stream_encoder_intrin_ssse3.c
-               3rdparty/flac/src/libFLAC/stream_encoder_intrin_avx2.c
-               3rdparty/flac/src/libFLAC/stream_encoder_framing.c
-               3rdparty/flac/src/libFLAC/window.c
-            $<$<BOOL:${WIN32}>:3rdparty/flac/include/share/windows_unicode_filenames.h>
-            $<$<BOOL:${WIN32}>:3rdparty/flac/src/libFLAC/windows_unicode_filenames.c>
-            $<$<BOOL:${OGG_FOUND}>:ogg_decoder_aspect.c>
-            $<$<BOOL:${OGG_FOUND}>:ogg_encoder_aspect.c>
-            $<$<BOOL:${OGG_FOUND}>:ogg_helper.c>
-            $<$<BOOL:${OGG_FOUND}>:ogg_mapping.c>)
+        3rdparty/flac/src/libFLAC/bitmath.c
+        3rdparty/flac/src/libFLAC/bitreader.c
+        3rdparty/flac/src/libFLAC/bitwriter.c
+        3rdparty/flac/src/libFLAC/cpu.c
+        3rdparty/flac/src/libFLAC/crc.c
+        3rdparty/flac/src/libFLAC/fixed.c
+        3rdparty/flac/src/libFLAC/fixed_intrin_sse2.c
+        3rdparty/flac/src/libFLAC/fixed_intrin_ssse3.c
+        3rdparty/flac/src/libFLAC/fixed_intrin_sse42.c
+        3rdparty/flac/src/libFLAC/fixed_intrin_avx2.c
+        3rdparty/flac/src/libFLAC/float.c
+        3rdparty/flac/src/libFLAC/format.c
+        3rdparty/flac/src/libFLAC/lpc.c
+        3rdparty/flac/src/libFLAC/lpc_intrin_neon.c
+        3rdparty/flac/src/libFLAC/lpc_intrin_sse2.c
+        3rdparty/flac/src/libFLAC/lpc_intrin_sse41.c
+        3rdparty/flac/src/libFLAC/lpc_intrin_avx2.c
+        3rdparty/flac/src/libFLAC/lpc_intrin_fma.c
+        3rdparty/flac/src/libFLAC/md5.c
+        3rdparty/flac/src/libFLAC/memory.c
+        3rdparty/flac/src/libFLAC/metadata_iterators.c
+        3rdparty/flac/src/libFLAC/metadata_object.c
+        3rdparty/flac/src/libFLAC/stream_decoder.c
+        3rdparty/flac/src/libFLAC/stream_encoder.c
+        3rdparty/flac/src/libFLAC/stream_encoder_intrin_sse2.c
+        3rdparty/flac/src/libFLAC/stream_encoder_intrin_ssse3.c
+        3rdparty/flac/src/libFLAC/stream_encoder_intrin_avx2.c
+        3rdparty/flac/src/libFLAC/stream_encoder_framing.c
+        3rdparty/flac/src/libFLAC/window.c
+        $<$<BOOL:${WIN32}>:3rdparty/flac/include/share/win_utf8_io.h>
+        $<$<BOOL:${WIN32}>:3rdparty/flac/src/share/win_utf8_io/win_utf8_io.c>
+        $<$<BOOL:${OGG_FOUND}>:ogg_decoder_aspect.c>
+        $<$<BOOL:${OGG_FOUND}>:ogg_encoder_aspect.c>
+        $<$<BOOL:${OGG_FOUND}>:ogg_helper.c>
+        $<$<BOOL:${OGG_FOUND}>:ogg_mapping.c>)
 
 target_compile_definitions("Aaru.Compression.Native" PUBLIC FLAC__NO_DLL)
 target_compile_definitions("Aaru.Compression.Native" PUBLIC FLAC__NO_FILEIO)
 
 # Disable fortify source when not-release or when cross-building with MingW for WoA
-if(CMAKE_BUILD_TYPE STREQUAL Debug OR CMAKE_BUILD_TYPE STREQUAL RelWithDebInfo OR "${CMAKE_C_PLATFORM_ID}" MATCHES "MinGW")
+if (CMAKE_BUILD_TYPE STREQUAL Debug OR CMAKE_BUILD_TYPE STREQUAL RelWithDebInfo OR "${CMAKE_C_PLATFORM_ID}" MATCHES "MinGW")
     set(DODEFINE_FORTIFY_SOURCE 0)
-endif()
+endif ()
 
 set_property(TARGET "Aaru.Compression.Native" PROPERTY C_VISIBILITY_PRESET hidden)
 
-if(ARCHITECTURE_IS_64BIT)
+if (ARCHITECTURE_IS_64BIT)
     set(ENABLE_64_BIT_WORDS 1)
-endif()
+endif ()
 
 configure_file(3rdparty/flac/config.cmake.h.in 3rdparty/flac/config.h)
 
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 97de24f..67816a7 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -122,6 +122,21 @@ ENDMACRO()
 
 TARGET_LINK_LIBRARIES_WHOLE_ARCHIVE("Aaru.Compression.Native" libzstd_static m)
 
+check_include_file("semaphore.h" HAVE_SEMAPHORE_H)
+
+if(HAVE_SEMAPHORE_H)
+    set(CMAKE_THREAD_PREFER_PTHREAD TRUE)
+    set(THREADS_PREFER_PTHREAD_FLAG TRUE)
+    find_package(Threads)
+    if(CMAKE_USE_PTHREADS_INIT)
+        set(HAVE_PTHREAD 1)
+    endif()
+endif()
+
+if(HAVE_PTHREAD)
+    TARGET_LINK_LIBRARIES_WHOLE_ARCHIVE("Aaru.Compression.Native" Threads::Threads)
+endif()
+
 if(NOT "${CMAKE_C_PLATFORM_ID}" MATCHES "MinGW" OR (NOT ${CMAKE_SYSTEM_PROCESSOR} MATCHES "arm" AND NOT ${CMAKE_SYSTEM_PROCESSOR} MATCHES "aarch64"))
     set_property(TARGET "Aaru.Compression.Native" PROPERTY POSITION_INDEPENDENT_CODE TRUE)
 else()