diff --git a/.github/workflows/pawn-tests.yaml b/.github/workflows/pawn-tests.yaml
index b225992..6ed5b2b 100644
--- a/.github/workflows/pawn-tests.yaml
+++ b/.github/workflows/pawn-tests.yaml
@@ -1,4 +1,4 @@
-name: Pawn tests
+name: Build and test pawn
 
 on:
   push:
@@ -11,20 +11,87 @@ on:
 
 jobs:
   build:
-    name: Building and testing pawn
-    runs-on: ubuntu-latest
+    name: ${{ matrix.config.name }}
+    runs-on: ${{ matrix.config.os }}
+    env:
+      CC: ${{ matrix.config.cc }}
+      CXX: ${{ matrix.config.cxx }}
+    strategy:
+      fail-fast: false
+      matrix:
+        config:
+          - name: "Ubuntu Latest - GCC"
+            os: ubuntu-latest
+            cc: gcc
+            cxx: g++
+            shell: bash
+          - name: "Ubuntu Latest - Clang"
+            os: ubuntu-latest
+            cc: clang
+            cxx: clang++
+            shell: bash
+          - name: "Ubuntu 20.04 - GCC"
+            os: ubuntu-20.04
+            cc: gcc
+            cxx: g++
+            shell: bash
+          - name: "Ubuntu 20.04 - Clang"
+            os: ubuntu-20.04
+            cc: clang
+            cxx: clang++
+            shell: bash
+          - name: "MacOS - GCC 11"
+            os: macos-latest
+            cc: gcc-11
+            cxx: g++-11
+            shell: bash
+          - name: "MacOS - Clang"
+            os: macos-latest
+            cc: clang
+            cxx: clang++
+            shell: bash
+          - name: "Windows 2022 - GCC"
+            os: windows-2022
+            cc: gcc
+            cxx: g++
+            sys: mingw64
+            packages: mingw-w64-x86_64-gcc
+            shell: msys2 {0}
+          - name: "Windows 2022 - Clang"
+            os: windows-2022
+            cc: clang
+            cxx: clang++
+            sys: mingw64
+            packages: mingw-w64-x86_64-clang mingw-w64-x86_64-lld
+            shell: msys2 {0}
+    defaults:
+      run:
+        shell: ${{ matrix.config.shell }}
     steps:
       - name: Check out repository
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
         with:
           fetch-depth: 0
-      - name: Extract bench signature
-        run: "git log HEAD | grep 'Bench: ' | head -n 1 | awk '{print $2}' > bench.sig"
+      - name: Prepare Windows with MSYS2
+        if: runner.os == 'Windows'
+        uses: msys2/setup-msys2@v2
+        with:
+          msystem: ${{matrix.config.sys}}
+          install: make git diffutils ${{matrix.config.packages}}
+      - name: Fetch bench signature
+        run: "git log HEAD | grep 'Bench: ' | head -n 1 | awk '{print $2}' > bench.sig_ref"
       - name: Build pawn
         run: "make"
       - name: Run bench
-        run: "build/pawn bench 2>&1 | grep 'Nodes searched:' | awk '{print $3}' > bench.out"
-      - name: Verify bench signature
-        run: "cmp bench.sig bench.out"
+        run: |
+          build/pawn bench > bench.out 2>&1
+          cat bench.out
+      - name: Extract and verify bench signature
+        run: |
+          cat bench.out | grep 'Nodes searched:' | awk '{print $3}' > bench.sig
+          cmp bench.sig bench.sig_ref
       - name: Run tests
-        run: "build/pawn test | grep -q 'All tests passed'"
+        run: |
+          build/pawn test > test.out
+          cat test.out
+          grep -q 'All tests passed' test.out
diff --git a/.github/workflows/release.yaml b/.github/workflows/release.yaml
new file mode 100644
index 0000000..aa9f0a2
--- /dev/null
+++ b/.github/workflows/release.yaml
@@ -0,0 +1,77 @@
+name: Upload binaries to release
+
+on:
+  release:
+    types: [published]
+
+permissions:
+  contents: write
+
+jobs:
+  build:
+    name: ${{matrix.config.name}}
+    runs-on: ${{matrix.config.os}}
+    env:
+      CC: ${{matrix.config.cc}}
+      CXX: ${{matrix.config.cxx}}
+    strategy:
+      fail-fast: false
+      matrix:
+        config:
+          - name: ubuntu
+            os: ubuntu-20.04
+            cc: gcc
+            cxx: g++
+            shell: bash
+          - name: macos
+            os: macos-latest
+            cc: gcc-11
+            cxx: g++-11
+            shell: bash
+          - name: windows
+            os: windows-2022
+            cc: gcc
+            cxx: g++
+            sys: mingw64
+            packages: mingw-w64-x86_64-gcc
+            shell: msys2 {0}
+        binaries:
+          - x86-64
+          - haswell
+    defaults:
+      run:
+        shell: ${{matrix.config.shell}}
+    steps:
+      - name: Check out repository
+        uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+      - name: Prepare Windows with MSYS2
+        if: runner.os == 'Windows'
+        uses: msys2/setup-msys2@v2
+        with:
+          msystem: ${{matrix.config.sys}}
+          install: make git diffutils mingw-w64-x86_64-github-cli ${{matrix.config.packages}}
+      - name: Build
+        run: make ARCH=${{matrix.binaries}} -j
+      - name: Verify bench signature
+        run: |
+          git log HEAD | grep 'Bench: ' | head -n 1 | awk '{print $2}' > bench.sig_ref
+          build/pawn bench > bench.out 2>&1
+          cat bench.out
+          cat bench.out | grep 'Nodes searched:' | awk '{print $3}' > bench.sig
+          cmp bench.sig bench.sig_ref
+      - name: Upload Release Asset
+        if: runner.os != 'Windows'
+        env:
+          GITHUB_TOKEN: ${{secrets.GITHUB_TOKEN}}
+        run: |
+          cp build/pawn pawn-${{github.event.release.tag_name}}-${{matrix.config.name}}-${{matrix.binaries}}
+          gh release upload ${{github.event.release.tag_name}} pawn-${{github.event.release.tag_name}}-${{matrix.config.name}}-${{matrix.binaries}}
+      - name: Upload Release Asset (Windows)
+        if: runner.os == 'Windows'
+        env:
+          GITHUB_TOKEN: ${{secrets.GITHUB_TOKEN}}
+        run: |
+          cp build/pawn.exe pawn-${{github.event.release.tag_name}}-${{matrix.config.name}}-${{matrix.binaries}}.exe
+          gh release upload ${{github.event.release.tag_name}} pawn-${{github.event.release.tag_name}}-${{matrix.config.name}}-${{matrix.binaries}}.exe
diff --git a/Makefile b/Makefile
index 7cbd3a7..61cabc0 100644
--- a/Makefile
+++ b/Makefile
@@ -6,14 +6,26 @@ SRC_DIR=src
 ARCH = native
 
 # Compiler flags
-CFLAGS = -Wall -Isrc/syzygy/Fathom/src -O3 -flto -march=$(ARCH)
-CXXFLAGS = -Wall -std=c++17 -Isrc/syzygy/Fathom/src -O3 -flto -march=$(ARCH)
-LDFLAGS = -pthread -flto -march=$(ARCH)
+COMMON = -Wall -Isrc/syzygy/Fathom/src -O3 -flto -march=$(ARCH)
+CFLAGS = $(COMMON)
+CXXFLAGS = $(COMMON) -std=c++17
+LDFLAGS = -flto -march=$(ARCH)
 
 # Windows-specific stuff
 ifeq ($(OS), Windows_NT)
 	LDFLAGS += -static
 	BIN_NAME := $(BIN_NAME).exe
+	ifeq ($(CC), clang)
+# Needed for -flto to work on Windows Clang
+# This is also the only case where we don't use -pthread
+		CFLAGS += -fuse-ld=lld
+		CXXFLAGS += -fuse-ld=lld
+		LDFLAGS += -fuse-ld=lld
+	else
+		LDFLAGS += -pthread
+	endif
+else
+	LDFLAGS += -pthread
 endif
 
 SRC_FILES := $(shell find $(SRC_DIR) -name *.cpp) src/syzygy/Fathom/src/tbprobe.c
diff --git a/src/NNUE.cpp b/src/NNUE.cpp
index 9e7baa0..518a34b 100644
--- a/src/NNUE.cpp
+++ b/src/NNUE.cpp
@@ -1,3 +1,4 @@
+#include "incbin/incbin.h"
 #include "Types.hpp"
 #include "NNUE.hpp"
 #include <iostream>
diff --git a/src/NNUE.hpp b/src/NNUE.hpp
index 96a165e..1c17f96 100644
--- a/src/NNUE.hpp
+++ b/src/NNUE.hpp
@@ -1,7 +1,7 @@
 #pragma once
-#include "incbin/incbin.h"
 #include "Types.hpp"
 
+
 #define NNUE_Default_File "nnue-10427ad1e4e6.dat"
 
 
diff --git a/src/Tests.cpp b/src/Tests.cpp
index 4fead34..75d794d 100644
--- a/src/Tests.cpp
+++ b/src/Tests.cpp
@@ -115,8 +115,8 @@ namespace Tests
         for (auto& test : tests)
         {
             Position pos(test.fen());
-            Histories hists;
-            auto result = Search::perft<false>(pos, test.depth(), hists);
+            auto hists = std::make_unique<Histories>();
+            auto result = Search::perft<false>(pos, test.depth(), *hists);
             if (result == test.result())
             {
                 std::cout << "[ OK ] " << test.fen() << " (" << result << ")" << std::endl;
diff --git a/src/Tests.hpp b/src/Tests.hpp
index 3a1bb4b..5e220db 100644
--- a/src/Tests.hpp
+++ b/src/Tests.hpp
@@ -48,10 +48,10 @@ namespace Tests
         int n_failed = 0;
         for (auto& test : tests)
         {
-            Histories hists;
             Position pos(test.fen());
-            auto result_base = Search::perft<false>(pos, test.depth() - 1, hists);
-            auto result_test = Search::template perft<false, USE_ORDER, TT, LEGALITY, VALIDITY>(pos, test.depth() - 1, hists);
+            auto hists = std::make_unique<Histories>();
+            auto result_base = Search::perft<false>(pos, test.depth() - 1, *hists);
+            auto result_test = Search::template perft<false, USE_ORDER, TT, LEGALITY, VALIDITY>(pos, test.depth() - 1, *hists);
             if (result_base == result_test)
             {
                 std::cout << "[ OK ] " << test.fen() << " (" << result_test << ")" << std::endl;