diff --git a/.gitignore b/.gitignore
index ccfb61e..78c59aa 100644
--- a/.gitignore
+++ b/.gitignore
@@ -4,3 +4,4 @@
 /async-std-1.9.0.crate
 /async-std-1.10.0.crate
 /async-std-1.11.0.crate
+/async-std-1.12.0.crate
diff --git a/async-std-fix-metadata.diff b/async-std-fix-metadata.diff
index b207ede..5cdc3fd 100644
--- a/async-std-fix-metadata.diff
+++ b/async-std-fix-metadata.diff
@@ -1,6 +1,6 @@
---- async-std-1.11.0/Cargo.toml	1970-01-01T00:00:01+00:00
-+++ async-std-1.11.0/Cargo.toml	2022-03-22T21:40:20.467341+00:00
-@@ -29,10 +29,6 @@
+--- async-std-1.12.0/Cargo.toml	1970-01-01T00:00:01+00:00
++++ async-std-1.12.0/Cargo.toml	2022-07-16T10:34:51.714357+00:00
+@@ -46,10 +46,6 @@
  [[example]]
  name = "tcp-ipv4-and-6-echo"
  required-features = ["unstable"]
@@ -11,34 +11,44 @@
  
  [[test]]
  name = "stream"
-@@ -95,9 +91,6 @@
+@@ -109,10 +105,6 @@
  version = "0.4.2"
  optional = true
  
 -[dependencies.surf]
 -version = "2.0.0"
 -optional = true
+-
  [dev-dependencies.femme]
  version = "2.1.1"
  
-@@ -116,11 +109,10 @@
- [features]
- alloc = ["futures-core/alloc", "pin-project-lite"]
- attributes = ["async-attributes"]
--default = ["std", "async-global-executor", "async-io", "futures-lite", "kv-log-macro", "log", "num_cpus", "pin-project-lite", "gloo-timers"]
-+default = ["std", "async-global-executor", "async-io", "futures-lite", "kv-log-macro", "log", "num_cpus", "pin-project-lite"]
- docs = ["attributes", "unstable", "default"]
--std = ["alloc", "crossbeam-utils", "futures-core/std", "futures-io", "memchr", "once_cell", "pin-utils", "slab", "wasm-bindgen-futures", "futures-channel", "async-channel", "async-lock"]
-+std = ["alloc", "crossbeam-utils", "futures-core/std", "futures-io", "memchr", "once_cell", "pin-utils", "slab", "async-channel", "async-lock"]
+@@ -142,7 +134,6 @@
+     "kv-log-macro",
+     "log",
+     "pin-project-lite",
+-    "gloo-timers",
+ ]
+ docs = [
+     "attributes",
+@@ -158,13 +149,10 @@
+     "once_cell",
+     "pin-utils",
+     "slab",
+-    "wasm-bindgen-futures",
+-    "futures-channel",
+     "async-channel",
+     "async-lock",
+ ]
  tokio02 = ["async-global-executor/tokio02"]
 -tokio03 = ["async-global-executor/tokio03"]
  tokio1 = ["async-global-executor/tokio"]
- unstable = ["std", "async-io", "async-process"]
- [target."cfg(not(target_os = \"unknown\"))".dependencies.async-global-executor]
-@@ -139,21 +131,3 @@
+ unstable = [
+     "std",
+@@ -188,23 +176,3 @@
  [target."cfg(not(target_os = \"unknown\"))".dependencies.futures-lite]
  version = "1.0.0"
  optional = true
+-
 -[target."cfg(target_arch = \"wasm32\")".dependencies.futures-channel]
 -version = "0.3.4"
 -optional = true
@@ -51,6 +61,7 @@
 -[target."cfg(target_arch = \"wasm32\")".dependencies.wasm-bindgen-futures]
 -version = "0.4.10"
 -optional = true
+-
 -[target."cfg(target_arch = \"wasm32\")".dev-dependencies.getrandom]
 -version = "0.2.0"
 -features = ["js"]
diff --git a/rust-async-std.spec b/rust-async-std.spec
index 492bc2e..e757275 100644
--- a/rust-async-std.spec
+++ b/rust-async-std.spec
@@ -5,7 +5,7 @@
 %global crate async-std
 
 Name:           rust-%{crate}
-Version:        1.11.0
+Version:        1.12.0
 Release:        %autorelease
 Summary:        Async version of the Rust standard library
 
@@ -250,18 +250,6 @@ use the "memchr" feature of the "%{crate}" crate.
 %files       -n %{name}+memchr-devel
 %ghost %{crate_instdir}/Cargo.toml
 
-%package     -n %{name}+num_cpus-devel
-Summary:        %{summary}
-BuildArch:      noarch
-
-%description -n %{name}+num_cpus-devel %{_description}
-
-This package contains library source intended for building other packages which
-use the "num_cpus" feature of the "%{crate}" crate.
-
-%files       -n %{name}+num_cpus-devel
-%ghost %{crate_instdir}/Cargo.toml
-
 %package     -n %{name}+once_cell-devel
 Summary:        %{summary}
 BuildArch:      noarch
diff --git a/sources b/sources
index 6499d19..a934ab2 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (async-std-1.11.0.crate) = 8978520f1031273ef93e7af63b7b72d43fe52f4c4058a3538ed1c16ae21bff79b787f79d5e9c54cb5266c24875681a52bd68d85ff322423dfb6656e215f32c20
+SHA512 (async-std-1.12.0.crate) = aaeef7f474fc700bba7beb6725d4eb778a9a05ebccfecdd81789b5d039c49508860d953f231c7b8fbce4c5b237d063a43eb03b83410490fc14eca572884f57e2