diff --git a/var/spack/repos/builtin/packages/gasnet/package.py b/var/spack/repos/builtin/packages/gasnet/package.py
index 3dd6c328f6..6917f06626 100644
--- a/var/spack/repos/builtin/packages/gasnet/package.py
+++ b/var/spack/repos/builtin/packages/gasnet/package.py
@@ -37,6 +37,7 @@ class Gasnet(Package, CudaPackage, ROCmPackage):
     version("main", branch="stable")
     version("master", branch="master")
 
+    version("2023.3.0", sha256="e1fa783d38a503cf2efa7662be591ca5c2bb98d19ac72a9bc6da457329a9a14f")
     version("2022.9.2", sha256="2352d52f395a9aa14cc57d82957d9f1ebd928d0a0021fd26c5f1382a06cd6f1d")
     version("2022.9.0", sha256="6873ff4ad8ebee49da4378f2d78095a6ccc31333d6ae4cd739b9f772af11f936")
     version("2022.3.0", sha256="91b59aa84c0680c807e00d3d1d8fa7c33c1aed50b86d1616f93e499620a9ba09")
diff --git a/var/spack/repos/builtin/packages/oneapi-level-zero/package.py b/var/spack/repos/builtin/packages/oneapi-level-zero/package.py
index dd64b96c79..738c9ce062 100644
--- a/var/spack/repos/builtin/packages/oneapi-level-zero/package.py
+++ b/var/spack/repos/builtin/packages/oneapi-level-zero/package.py
@@ -21,6 +21,13 @@ class OneapiLevelZero(CMakePackage):
 
     maintainers("rscohn2")
 
+    version("1.9.9", sha256="3d1784e790bbaae5f160b920c07e7dc2941640d9c631aaa668ccfd57aafc7b56")
+    version("1.9.4", sha256="7f91ed993be1e643c752cf95a319a0fc64113d91ec481fbb8a2f478f433d3380")
+    version("1.8.12", sha256="9c5d3dd912882abe8e2e3ba72f8c27e2a2d86759ac48f6318a0df091204985eb")
+    version("1.8.8", sha256="3553ae8fa0d2d69c4210a8f3428bd6612bd8bb8a627faf52c3658a01851e66d2")
+    version("1.8.5", sha256="b6e9663bbcc53c148d32376998298bec6f7c434ef2218c61fa708963e3a09394")
+    version("1.8.1", sha256="de9582ca075dbd207113d432c4d70a2daaf9d6904672c707e340d43cf4e114a5")
+    version("1.8.0", sha256="d4089820ed6338ce1616746498bff9383cd9485568190b7977d7c5bf0bf8297b")
     version("1.7.15", sha256="c39bb05a8e5898aa6c444e1704105b93d3f1888b9c333f8e7e73825ffbfb2617")
     version("1.7.9", sha256="b430a7f833a689c899b32172a31c3bca1d16adcad8ff866f240a3a8968433de7")
     version("1.7.4", sha256="23a3f393f6e8f7ed694e0d3248d1ac1b92f2b6964cdb4d747abc23328050513b")
diff --git a/var/spack/repos/builtin/packages/upcxx/package.py b/var/spack/repos/builtin/packages/upcxx/package.py
index 63949234a4..3cb89840e8 100644
--- a/var/spack/repos/builtin/packages/upcxx/package.py
+++ b/var/spack/repos/builtin/packages/upcxx/package.py
@@ -16,7 +16,7 @@ def is_CrayXC():
 
 
 def is_CrayEX():
-    return (spack.platforms.host().name == "cray") and (
+    return (spack.platforms.host().name in ["linux", "cray"]) and (
         os.environ.get("CRAYPE_NETWORK_TARGET") in ["ofi", "ucx"]
     )
 
@@ -47,6 +47,7 @@ class Upcxx(Package, CudaPackage, ROCmPackage):
     version("develop", branch="develop")
     version("master", branch="master")
 
+    version("2023.3.0", sha256="382af3c093decdb51f0533e19efb4cc7536b6617067b2dd89431e323704a1009")
     version("2022.9.0", sha256="dbf15fd9ba38bfe2491f556b55640343d6303048a117c4e84877ceddb64e4c7c")
     version("2022.3.0", sha256="72bccfc9dfab5c2351ee964232b3754957ecfdbe6b4de640e1b1387d45019496")
     version("2021.9.0", sha256="9299e17602bcc8c05542cdc339897a9c2dba5b5c3838d6ef2df7a02250f42177")
@@ -67,12 +68,23 @@ class Upcxx(Package, CudaPackage, ROCmPackage):
     variant(
         "cuda",
         default=False,
-        description="Enables UPC++ support for the CUDA memory kind.\n"
+        description="Enables UPC++ support for the CUDA memory kind on NVIDIA GPUs.\n"
         + "NOTE: Requires CUDA Driver library be present on the build system",
+        when="@2019.3.0:",
     )
 
     variant(
-        "rocm", default=False, description="Enables UPC++ support for the ROCm/HIP memory kind"
+        "rocm",
+        default=False,
+        description="Enables UPC++ support for the ROCm/HIP memory kind on AMD GPUs",
+        when="@2022.3.0:",
+    )
+
+    variant(
+        "level_zero",
+        default=False,
+        description="Enables UPC++ support for the Level Zero memory kind on Intel GPUs",
+        when="@2023.3.0:",
     )
 
     variant(
@@ -100,6 +112,8 @@ class Upcxx(Package, CudaPackage, ROCmPackage):
 
     conflicts("hip@:4.4.0", when="+rocm")
 
+    depends_on("oneapi-level-zero@1.8.0:", when="+level_zero")
+
     # All flags should be passed to the build-env in autoconf-like vars
     flag_handler = env_flags
 
@@ -202,6 +216,10 @@ def install(self, spec, prefix):
                 "--with-ld-flags=" + self.compiler.cc_rpath_arg + spec["hip"].prefix.lib
             )
 
+        if "+level_zero" in spec:
+            options.append("--enable-ze")
+            options.append("--with-ze-home=" + spec["oneapi-level-zero"].prefix)
+
         env["GASNET_CONFIGURE_ARGS"] = "--enable-rpath " + env["GASNET_CONFIGURE_ARGS"]
 
         configure(*options)