diff --git a/artifacts/manifests/k8s-staging-kops/1.21.0-alpha.3.yaml b/artifacts/manifests/k8s-staging-kops/1.21.0-alpha.3.yaml
new file mode 100644
index 00000000000..87905161053
--- /dev/null
+++ b/artifacts/manifests/k8s-staging-kops/1.21.0-alpha.3.yaml
@@ -0,0 +1,65 @@
+files:
+- name: 1.21.0-alpha.3/darwin/amd64/kops
+  sha256: 8ba5b69637192087082a7a64333416074f7609ca4cc1e55d9fb58c0bb4f9ce0e
+- name: 1.21.0-alpha.3/darwin/amd64/kops.sha256
+  sha256: 55257318896fc9045560029d63164c410ab14d79a108f812eb626556e6f3e5ff
+- name: 1.21.0-alpha.3/images/dns-controller-amd64.tar.gz
+  sha256: b15d829a5532d5c090a09914c7d0019970b7d025315a545060d7553e2b1976cd
+- name: 1.21.0-alpha.3/images/dns-controller-amd64.tar.gz.sha256
+  sha256: ae21c88c0d210dfef176751174f944ee87f426ef5461f04bad28d433f77ab3a9
+- name: 1.21.0-alpha.3/images/dns-controller-arm64.tar.gz
+  sha256: d23cd72d25bcdc609856e0dbd59f62333491ba41778f1208433aaef685a083a3
+- name: 1.21.0-alpha.3/images/dns-controller-arm64.tar.gz.sha256
+  sha256: cc1a2a64fec5d20d332f3da882b477d2f297bdb72510905fad75c926f6673ca6
+- name: 1.21.0-alpha.3/images/kops-controller-amd64.tar.gz
+  sha256: 0894d8e7f8c06fd0a331fdc622535b41e82005cd66a4d032bfbe6c71ae0b184d
+- name: 1.21.0-alpha.3/images/kops-controller-amd64.tar.gz.sha256
+  sha256: 174fc04c2f95f05bd474cc36c8b98c10c3dc80a9dd92b7ceef032101f3ebd126
+- name: 1.21.0-alpha.3/images/kops-controller-arm64.tar.gz
+  sha256: 309971189c5ab05a8d54824404be0ab1b69a4f0cf72c246daea4e9b11f8ea612
+- name: 1.21.0-alpha.3/images/kops-controller-arm64.tar.gz.sha256
+  sha256: b1e42e520f6ce66a93cdb20cfbaa734176b951845bf47a2af7976e8f1cbc30be
+- name: 1.21.0-alpha.3/images/kube-apiserver-healthcheck-amd64.tar.gz
+  sha256: f2da4e33a3ec52bfceb873d787f59ccdbb7fd4342cc4c7b0db29538a33d52f9a
+- name: 1.21.0-alpha.3/images/kube-apiserver-healthcheck-amd64.tar.gz.sha256
+  sha256: 5c06ab355e9abc41a34158005fb764b4af71cffc9cf3a8725d67b7d5561d6d95
+- name: 1.21.0-alpha.3/images/kube-apiserver-healthcheck-arm64.tar.gz
+  sha256: 38d80be92e74e2aefcfac5c7a8c8ee4a7a86c98e80c8846ea84e98c31667a3d4
+- name: 1.21.0-alpha.3/images/kube-apiserver-healthcheck-arm64.tar.gz.sha256
+  sha256: 7b453034519972d32216c7d79c8fe9ab48afb0aec88073a732de8ab04488cb87
+- name: 1.21.0-alpha.3/linux/amd64/channels
+  sha256: 59d1e0145432fdaf48b278fa93812dabef86fc5e24768655c5a6a8a5bb616abb
+- name: 1.21.0-alpha.3/linux/amd64/channels.sha256
+  sha256: 9b260fc15e47422f43e0787fb995b6f1fef5af27c34eed47954d75f0dca0ad34
+- name: 1.21.0-alpha.3/linux/amd64/kops
+  sha256: 2d154aa8f24cbceb771b66184df07f007573255fcda5c27cf379a696f27733b5
+- name: 1.21.0-alpha.3/linux/amd64/kops.sha256
+  sha256: 9fd39da217b44cf883593558ebac71b05fae8a80f2e946201aeff5b4d77449de
+- name: 1.21.0-alpha.3/linux/amd64/nodeup
+  sha256: 846138da52c08361a00f43f168b793c2bff40977278147d35d876bf5dc003eee
+- name: 1.21.0-alpha.3/linux/amd64/nodeup.sha256
+  sha256: dbdf9507bc62edbe4a5f732005883d7b300c09871ed50ba3c1631d2f213bc14c
+- name: 1.21.0-alpha.3/linux/amd64/protokube
+  sha256: 774991cf90bb1af6dca6f9e906668a677ace9c3f85a9f1c2a22e8a0f64f2446b
+- name: 1.21.0-alpha.3/linux/amd64/protokube.sha256
+  sha256: 3260b5029c25fff28f73aa7ad4b6355038c942d521304a48d6d0430f641229f7
+- name: 1.21.0-alpha.3/linux/arm64/channels
+  sha256: df41b03bc26bdd288df4deabc292e9e21b8e2b240f13f67f1be2f28f2383d0cf
+- name: 1.21.0-alpha.3/linux/arm64/channels.sha256
+  sha256: e5d177e49817f2f5fe186e0ca09311f0b26e6fdeaf92635900a4a54ac655f540
+- name: 1.21.0-alpha.3/linux/arm64/kops
+  sha256: c945000fce98ed010be20a1a37b1fd98e4f68c6d5d6801e8fe25043a5248a269
+- name: 1.21.0-alpha.3/linux/arm64/kops.sha256
+  sha256: 28e87186b11591a1f526bb1bfd316d11f079d4360ae9a1f05fc67627be9e0dd6
+- name: 1.21.0-alpha.3/linux/arm64/nodeup
+  sha256: 380a75e9af5dd8946d7d76908e807e3c28d47dbe052560b3c9da4a1122ce8377
+- name: 1.21.0-alpha.3/linux/arm64/nodeup.sha256
+  sha256: 4232c296f3d4ca6c7a782060deb39c125579a6a4831eb7eca45fe2460e95cf18
+- name: 1.21.0-alpha.3/linux/arm64/protokube
+  sha256: 9bf1398278183823d13b6dfdcff804234eba97ce85835a19a59029321ba959b7
+- name: 1.21.0-alpha.3/linux/arm64/protokube.sha256
+  sha256: 9960ad3bb4b51ebd80c96046569fe5548f8b92749894f3e8103795d6c8ca0b77
+- name: 1.21.0-alpha.3/windows/amd64/kops.exe
+  sha256: c6f106be6c43bc0fbde1c094af7b041cbab840347962cf3ded4431451b7f5631
+- name: 1.21.0-alpha.3/windows/amd64/kops.exe.sha256
+  sha256: 1bdb6d3a5308fbb6a4ac43e96ab5d7a36886475af2599fad0d72571a7695c91b