diff --git a/.gitignore b/.gitignore
index 0a20e0d..1a3a04c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,8 @@
 /libmimalloc-sys-0.1.28.crate
 /libmimalloc-sys-0.1.30.crate
 /libmimalloc-sys-0.1.33.crate
+/libmimalloc-sys-0.1.35.crate
+/libmimalloc-sys-0.1.38.crate
+/libmimalloc-sys-0.1.39.crate
+/libmimalloc-sys-0.1.42.crate
+/libmimalloc-sys-0.1.44.crate
diff --git a/get-bundled-mimalloc-ver.sh b/get-bundled-mimalloc-ver.sh
new file mode 100755
index 0000000..ba2b568
--- /dev/null
+++ b/get-bundled-mimalloc-ver.sh
@@ -0,0 +1,4 @@
+#!/bin/sh
+for v in 2 3; do
+  grep "define MI_MALLOC_VERSION" libmimalloc-sys-*/c_src/mimalloc/v$v/include/mimalloc.h | cut -d' ' -f3 | fold -w1 | paste -sd.
+done
diff --git a/rust-libmimalloc-sys.spec b/rust-libmimalloc-sys.spec
index 4b5b4b3..82cc4f9 100644
--- a/rust-libmimalloc-sys.spec
+++ b/rust-libmimalloc-sys.spec
@@ -1,11 +1,11 @@
-# Generated by rust2rpm 24
-%bcond_without check
+# Generated by rust2rpm 27
+%bcond check 1
 %global debug_package %{nil}
 
 %global crate libmimalloc-sys
 
 Name:           rust-libmimalloc-sys
-Version:        0.1.33
+Version:        0.1.44
 Release:        %autorelease
 Summary:        Sys crate wrapping the mimalloc allocator
 
@@ -13,11 +13,14 @@ License:        MIT
 URL:            https://crates.io/crates/libmimalloc-sys
 Source:         %{crates_source}
 
-BuildRequires:  rust-packaging >= 21
+BuildRequires:  cargo-rpm-macros >= 24
 
 # TODO: get this to build against system mimalloc
 # or ask mimalloc dev to switch to mimalloc-sys
-Provides:       bundled(mimalloc) = 2.1.2
+# https://github.com/purpleprotocol/mimalloc_rust/issues/73
+# use get-bundled-mimalloc-ver.sh after unpacking the crate
+Provides:       bundled(mimalloc) = 2.2.4
+Provides:       bundled(mimalloc) = 3.1.5
 
 %global _description %{expand:
 Sys crate wrapping the mimalloc allocator.}
@@ -35,7 +38,8 @@ use the "%{crate}" crate.
 
 %files          devel
 %license %{crate_instdir}/LICENSE.txt
-%license %{crate_instdir}/c_src/mimalloc/LICENSE
+%license %{crate_instdir}/c_src/mimalloc/v2/LICENSE
+%license %{crate_instdir}/c_src/mimalloc/v3/LICENSE
 %{crate_instdir}/
 
 %package     -n %{name}+default-devel
@@ -50,6 +54,18 @@ use the "default" feature of the "%{crate}" crate.
 %files       -n %{name}+default-devel
 %ghost %{crate_instdir}/Cargo.toml
 
+%package     -n %{name}+arena-devel
+Summary:        %{summary}
+BuildArch:      noarch
+
+%description -n %{name}+arena-devel %{_description}
+
+This package contains library source intended for building other packages which
+use the "arena" feature of the "%{crate}" crate.
+
+%files       -n %{name}+arena-devel
+%ghost %{crate_instdir}/Cargo.toml
+
 %package     -n %{name}+cty-devel
 Summary:        %{summary}
 BuildArch:      noarch
@@ -110,6 +126,18 @@ use the "local_dynamic_tls" feature of the "%{crate}" crate.
 %files       -n %{name}+local_dynamic_tls-devel
 %ghost %{crate_instdir}/Cargo.toml
 
+%package     -n %{name}+no_thp-devel
+Summary:        %{summary}
+BuildArch:      noarch
+
+%description -n %{name}+no_thp-devel %{_description}
+
+This package contains library source intended for building other packages which
+use the "no_thp" feature of the "%{crate}" crate.
+
+%files       -n %{name}+no_thp-devel
+%ghost %{crate_instdir}/Cargo.toml
+
 %package     -n %{name}+override-devel
 Summary:        %{summary}
 BuildArch:      noarch
@@ -134,11 +162,20 @@ use the "secure" feature of the "%{crate}" crate.
 %files       -n %{name}+secure-devel
 %ghost %{crate_instdir}/Cargo.toml
 
+%package     -n %{name}+v3-devel
+Summary:        %{summary}
+BuildArch:      noarch
+
+%description -n %{name}+v3-devel %{_description}
+
+This package contains library source intended for building other packages which
+use the "v3" feature of the "%{crate}" crate.
+
+%files       -n %{name}+v3-devel
+%ghost %{crate_instdir}/Cargo.toml
+
 %prep
-%autosetup -n %{crate}-%{version_no_tilde} -p1
-# these are Windows .exe and .dlls, and unneeded
-# see build.rs for the ones that are actually referenced
-rm -r c_src/mimalloc/bin
+%autosetup -n %{crate}-%{version} -p1
 %cargo_prep
 
 %generate_buildrequires
diff --git a/sources b/sources
index 960830a..c39a392 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (libmimalloc-sys-0.1.33.crate) = ac2161b4324436ff55b421bd5d26c5c3a54da62319299b392f9aaebd65dcd5862b8f8488738959e7e45be3165259b251643416ddd9905ddf6580807136c71616
+SHA512 (libmimalloc-sys-0.1.44.crate) = 18de89a1084ed2da37f9ea6357289e40fe95d86e8de2ee4567bba5453c2f622a116473e2baffeb086cdf814a4b7b12f6e05563992b0b88cf939abcc5a2584fc2