diff --git a/.vsts-ci/azure-pipelines-ci.yml b/.vsts-ci/azure-pipelines-ci.yml
index af8ad3bea5..d6bb03970a 100644
--- a/.vsts-ci/azure-pipelines-ci.yml
+++ b/.vsts-ci/azure-pipelines-ci.yml
@@ -35,18 +35,18 @@ trigger:
 jobs:
 - job: Windows
   pool:
-    vmImage: 'VS2017-Win2016'
+    vmImage: 'windows-2019'
   steps:
   - template: templates/ci-general.yml
 
 - job: macOS
   pool:
-    vmImage: 'macOS-10.14'
+    vmImage: 'macOS-10.15'
   steps:
   - template: templates/ci-general.yml
 
 - job: Linux
   pool:
-    vmImage: 'Ubuntu-16.04'
+    vmImage: 'Ubuntu-20.04'
   steps:
   - template: templates/ci-general.yml
diff --git a/package-lock.json b/package-lock.json
index d9517d028f..297ac48b98 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -65,6 +65,12 @@
       "integrity": "sha512-+iTbntw2IZPb/anVDbypzfQa+ay64MW0Zo8aJ8gZPWMMK6/OubMVb6lUPMagqjOPnmtauXnFCACVl3O7ogjeqQ==",
       "dev": true
     },
+    "@tootallnate/once": {
+      "version": "1.1.2",
+      "resolved": "https://registry.npmjs.org/@tootallnate/once/-/once-1.1.2.tgz",
+      "integrity": "sha512-RbzJvlNzmRq5c3O09UipeuXno4tA1FE6ikOjxZK0tuxVv3412l64l5t1W5pj4+rJq9vpkm/kwiR07aZXnsKPxw==",
+      "dev": true
+    },
     "@types/glob": {
       "version": "7.1.3",
       "resolved": "https://botbuilder.myget.org/F/botframework-cli/npm/@types/glob/-/@types/glob-7.1.3.tgz",
@@ -170,12 +176,12 @@
       "dev": true
     },
     "agent-base": {
-      "version": "4.3.0",
-      "resolved": "https://botbuilder.myget.org/F/botframework-cli/npm/agent-base/-/agent-base-4.3.0.tgz",
-      "integrity": "sha1-gWXwHENgCbzK0LHRIvBe13Dvxu4=",
+      "version": "6.0.2",
+      "resolved": "https://registry.npmjs.org/agent-base/-/agent-base-6.0.2.tgz",
+      "integrity": "sha512-RZNwNclF7+MS/8bDg70amg32dyeZGZxiDuQmZxKLAlQjr3jGyLx+4Kkk58UO7D2QdgFIQCovuSuZESne6RG6XQ==",
       "dev": true,
       "requires": {
-        "es6-promisify": "^5.0.0"
+        "debug": "4"
       }
     },
     "ajv": {
@@ -311,12 +317,34 @@
       "resolved": "https://botbuilder.myget.org/F/botframework-cli/npm/balanced-match/-/balanced-match-1.0.0.tgz",
       "integrity": "sha1-ibTRmasr7kneFk6gK4nORi1xt2c="
     },
+    "big-integer": {
+      "version": "1.6.48",
+      "resolved": "https://registry.npmjs.org/big-integer/-/big-integer-1.6.48.tgz",
+      "integrity": "sha512-j51egjPa7/i+RdiRuJbPdJ2FIUYYPhvYLjzoYbcMMm62ooO6F94fETG4MTs46zPAF9Brs04OajboA/qTGuz78w==",
+      "dev": true
+    },
+    "binary": {
+      "version": "0.3.0",
+      "resolved": "https://registry.npmjs.org/binary/-/binary-0.3.0.tgz",
+      "integrity": "sha1-n2BVO8XOjDOG87VTz/R0Yq3sqnk=",
+      "dev": true,
+      "requires": {
+        "buffers": "~0.1.1",
+        "chainsaw": "~0.1.0"
+      }
+    },
     "binary-extensions": {
       "version": "2.2.0",
       "resolved": "https://registry.npmjs.org/binary-extensions/-/binary-extensions-2.2.0.tgz",
       "integrity": "sha512-jDctJ/IVQbZoJykoeHbhXpOlNBqGNcwXJKJog42E5HDPUwQTSdjCHdihjj0DlnheQ7blbT6dHOafNAiS8ooQKA==",
       "dev": true
     },
+    "bluebird": {
+      "version": "3.4.7",
+      "resolved": "https://registry.npmjs.org/bluebird/-/bluebird-3.4.7.tgz",
+      "integrity": "sha1-9y12C+Cbf3bQjtj66Ysomo0F+rM=",
+      "dev": true
+    },
     "boolbase": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/boolbase/-/boolbase-1.0.0.tgz",
@@ -353,6 +381,18 @@
       "integrity": "sha1-DTM+PwDqxQqhRUq9MO+MKl2ackI=",
       "dev": true
     },
+    "buffer-indexof-polyfill": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/buffer-indexof-polyfill/-/buffer-indexof-polyfill-1.0.2.tgz",
+      "integrity": "sha512-I7wzHwA3t1/lwXQh+A5PbNvJxgfo5r3xulgpYDB5zckTu/Z9oUK9biouBKQUjEqzaz3HnAT6TYoovmE+GqSf7A==",
+      "dev": true
+    },
+    "buffers": {
+      "version": "0.1.1",
+      "resolved": "https://registry.npmjs.org/buffers/-/buffers-0.1.1.tgz",
+      "integrity": "sha1-skV5w77U1tOWru5tmorn9Ugqt7s=",
+      "dev": true
+    },
     "builtin-modules": {
       "version": "1.1.1",
       "resolved": "https://botbuilder.myget.org/F/botframework-cli/npm/builtin-modules/-/builtin-modules-1.1.1.tgz",
@@ -371,6 +411,15 @@
       "integrity": "sha512-c7wVvbw3f37nuobQNtgsgG9POC9qMbNuMQmTCqZv23b6MIz0fcYpBiOlv9gEN/hdLdnZTDQhg6e9Dq5M1vKvfg==",
       "dev": true
     },
+    "chainsaw": {
+      "version": "0.1.0",
+      "resolved": "https://registry.npmjs.org/chainsaw/-/chainsaw-0.1.0.tgz",
+      "integrity": "sha1-XqtQsor+WAdNDVgpE4iCi15fvJg=",
+      "dev": true,
+      "requires": {
+        "traverse": ">=0.3.0 <0.4"
+      }
+    },
     "chalk": {
       "version": "2.4.2",
       "resolved": "https://botbuilder.myget.org/F/botframework-cli/npm/chalk/-/chalk-2.4.2.tgz",
@@ -542,6 +591,12 @@
         "emitter-listener": "^1.1.1"
       }
     },
+    "core-util-is": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/core-util-is/-/core-util-is-1.0.2.tgz",
+      "integrity": "sha1-tf1UIgqivFq1eqtxQMlAdUUDwac=",
+      "dev": true
+    },
     "cross-spawn": {
       "version": "6.0.5",
       "resolved": "https://botbuilder.myget.org/F/botframework-cli/npm/cross-spawn/-/cross-spawn-6.0.5.tgz",
@@ -589,12 +644,20 @@
       "dev": true
     },
     "debug": {
-      "version": "3.1.0",
-      "resolved": "https://botbuilder.myget.org/F/botframework-cli/npm/debug/-/debug-3.1.0.tgz",
-      "integrity": "sha1-W7WgZyYotkFJVmuhaBnmFRjGcmE=",
+      "version": "4.3.1",
+      "resolved": "https://registry.npmjs.org/debug/-/debug-4.3.1.tgz",
+      "integrity": "sha512-doEwdvm4PCeK4K3RQN2ZC2BYUBaxwLARCqZmMjtF8a51J2Rb0xpVloFRnCODwqjpwnAoao4pelN8l3RJdv3gRQ==",
       "dev": true,
       "requires": {
-        "ms": "2.0.0"
+        "ms": "2.1.2"
+      },
+      "dependencies": {
+        "ms": {
+          "version": "2.1.2",
+          "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.2.tgz",
+          "integrity": "sha512-sGkPx+VjMtmA6MX27oA4FBFELFCZZ4S4XqeGOXCv68tT+jb3vk/RyaKWP0PTKyWtmLSM0b+adUTEvbs1PEaH2w==",
+          "dev": true
+        }
       }
     },
     "decamelize": {
@@ -693,6 +756,15 @@
         "domhandler": "^4.0.0"
       }
     },
+    "duplexer2": {
+      "version": "0.1.4",
+      "resolved": "https://registry.npmjs.org/duplexer2/-/duplexer2-0.1.4.tgz",
+      "integrity": "sha1-ixLauHjA1p4+eJEFFmKjL8a93ME=",
+      "dev": true,
+      "requires": {
+        "readable-stream": "^2.0.2"
+      }
+    },
     "emitter-listener": {
       "version": "1.1.2",
       "resolved": "https://registry.npmjs.org/emitter-listener/-/emitter-listener-1.1.2.tgz",
@@ -713,21 +785,6 @@
       "integrity": "sha512-hCx1oky9PFrJ611mf0ifBLBRW8lUUVRlFolb5gWRfIELabBlbp9xZvrqZLZAs+NxFnbfQoeGd8wDkygjg7U85w==",
       "dev": true
     },
-    "es6-promise": {
-      "version": "4.2.8",
-      "resolved": "https://botbuilder.myget.org/F/botframework-cli/npm/es6-promise/-/es6-promise-4.2.8.tgz",
-      "integrity": "sha1-TrIVlMlyvEBVPSduUQU5FD21Pgo=",
-      "dev": true
-    },
-    "es6-promisify": {
-      "version": "5.0.0",
-      "resolved": "https://botbuilder.myget.org/F/botframework-cli/npm/es6-promisify/-/es6-promisify-5.0.0.tgz",
-      "integrity": "sha1-UQnWLz5W6pZ8S2NQWu8IKRyKUgM=",
-      "dev": true,
-      "requires": {
-        "es6-promise": "^4.0.3"
-      }
-    },
     "escalade": {
       "version": "3.1.1",
       "resolved": "https://registry.npmjs.org/escalade/-/escalade-3.1.1.tgz",
@@ -1033,6 +1090,18 @@
       "dev": true,
       "optional": true
     },
+    "fstream": {
+      "version": "1.0.12",
+      "resolved": "https://registry.npmjs.org/fstream/-/fstream-1.0.12.tgz",
+      "integrity": "sha512-WvJ193OHa0GHPEL+AycEJgxvBEwyfRkN1vhjca23OaPVMCaLCXTd5qAu82AjTcgP1UJmytkOKb63Ypde7raDIg==",
+      "dev": true,
+      "requires": {
+        "graceful-fs": "^4.1.2",
+        "inherits": "~2.0.0",
+        "mkdirp": ">=0.5 0",
+        "rimraf": "2"
+      }
+    },
     "function-bind": {
       "version": "1.1.1",
       "resolved": "https://botbuilder.myget.org/F/botframework-cli/npm/function-bind/-/function-bind-1.1.1.tgz",
@@ -1083,6 +1152,12 @@
         "type-fest": "^0.8.1"
       }
     },
+    "graceful-fs": {
+      "version": "4.2.6",
+      "resolved": "https://registry.npmjs.org/graceful-fs/-/graceful-fs-4.2.6.tgz",
+      "integrity": "sha512-nTnJ528pbqxYanhpDYsi4Rd8MAeaBA67+RZ10CM1m3bTAVFEDcd5AuA4a6W5YkGZ1iNXHzZz8T6TBKLeBuNriQ==",
+      "dev": true
+    },
     "growl": {
       "version": "1.10.5",
       "resolved": "https://registry.npmjs.org/growl/-/growl-1.10.5.tgz",
@@ -1123,23 +1198,24 @@
       }
     },
     "http-proxy-agent": {
-      "version": "2.1.0",
-      "resolved": "https://botbuilder.myget.org/F/botframework-cli/npm/http-proxy-agent/-/http-proxy-agent-2.1.0.tgz",
-      "integrity": "sha1-5IIb7vWyFCogJr1zkm/lN2McVAU=",
+      "version": "4.0.1",
+      "resolved": "https://registry.npmjs.org/http-proxy-agent/-/http-proxy-agent-4.0.1.tgz",
+      "integrity": "sha512-k0zdNgqWTGA6aeIRVpvfVob4fL52dTfaehylg0Y4UvSySvOq/Y+BOyPrgpUrA7HylqvU8vIZGsRuXmspskV0Tg==",
       "dev": true,
       "requires": {
-        "agent-base": "4",
-        "debug": "3.1.0"
+        "@tootallnate/once": "1",
+        "agent-base": "6",
+        "debug": "4"
       }
     },
     "https-proxy-agent": {
-      "version": "2.2.4",
-      "resolved": "https://botbuilder.myget.org/F/botframework-cli/npm/https-proxy-agent/-/https-proxy-agent-2.2.4.tgz",
-      "integrity": "sha1-TuenN6vZJniik9mzShr00NCMeHs=",
+      "version": "5.0.0",
+      "resolved": "https://registry.npmjs.org/https-proxy-agent/-/https-proxy-agent-5.0.0.tgz",
+      "integrity": "sha512-EkYm5BcKUGiduxzSt3Eppko+PiNWNEpa4ySk9vTC6wDsQJW9rHSa+UhGNJoRYp7bz6Ht1eaRIa6QaJqO5rCFbA==",
       "dev": true,
       "requires": {
-        "agent-base": "^4.3.0",
-        "debug": "^3.1.0"
+        "agent-base": "6",
+        "debug": "4"
       }
     },
     "iconv-lite": {
@@ -1404,6 +1480,12 @@
         "uc.micro": "^1.0.1"
       }
     },
+    "listenercount": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/listenercount/-/listenercount-1.0.1.tgz",
+      "integrity": "sha1-hMinKrWcRyUyFIDJdeZQg0LnCTc=",
+      "dev": true
+    },
     "locate-path": {
       "version": "6.0.0",
       "resolved": "https://registry.npmjs.org/locate-path/-/locate-path-6.0.0.tgz",
@@ -1996,6 +2078,12 @@
       "integrity": "sha1-IZMqVJ9eUv/ZqCf1cOBL5iqX2lQ=",
       "dev": true
     },
+    "process-nextick-args": {
+      "version": "2.0.1",
+      "resolved": "https://registry.npmjs.org/process-nextick-args/-/process-nextick-args-2.0.1.tgz",
+      "integrity": "sha512-3ouUOpQhtgrbOa17J7+uxOTpITYWaGP7/AhoR3+A+/1e9skrzelGi/dXzEYyvbxubEF6Wn2ypscTKiKJFFn1ag==",
+      "dev": true
+    },
     "progress": {
       "version": "2.0.3",
       "resolved": "https://botbuilder.myget.org/F/botframework-cli/npm/progress/-/progress-2.0.3.tgz",
@@ -2026,6 +2114,35 @@
         "mute-stream": "~0.0.4"
       }
     },
+    "readable-stream": {
+      "version": "2.3.7",
+      "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-2.3.7.tgz",
+      "integrity": "sha512-Ebho8K4jIbHAxnuxi7o42OrZgF/ZTNcsZj6nRKyUmkhLFq8CHItp/fy6hQZuZmP/n3yZ9VBUbp4zz/mX8hmYPw==",
+      "dev": true,
+      "requires": {
+        "core-util-is": "~1.0.0",
+        "inherits": "~2.0.3",
+        "isarray": "~1.0.0",
+        "process-nextick-args": "~2.0.0",
+        "safe-buffer": "~5.1.1",
+        "string_decoder": "~1.1.1",
+        "util-deprecate": "~1.0.1"
+      },
+      "dependencies": {
+        "isarray": {
+          "version": "1.0.0",
+          "resolved": "https://registry.npmjs.org/isarray/-/isarray-1.0.0.tgz",
+          "integrity": "sha1-u5NdSFgsuhaMBoNJV6VKPgcSTxE=",
+          "dev": true
+        },
+        "safe-buffer": {
+          "version": "5.1.2",
+          "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.1.2.tgz",
+          "integrity": "sha512-Gd2UZBJDkXlY7GbJxfsE8/nvKkUEU1G38c1siN6QP6a9PT9MmHB8GnpscSmMJSoF8LOIrt8ud/wPtojys4G6+g==",
+          "dev": true
+        }
+      }
+    },
     "readdirp": {
       "version": "3.5.0",
       "resolved": "https://registry.npmjs.org/readdirp/-/readdirp-3.5.0.tgz",
@@ -2151,6 +2268,12 @@
         "randombytes": "^2.1.0"
       }
     },
+    "setimmediate": {
+      "version": "1.0.5",
+      "resolved": "https://registry.npmjs.org/setimmediate/-/setimmediate-1.0.5.tgz",
+      "integrity": "sha1-KQy7Iy4waULX1+qbg3Mqt4VvgoU=",
+      "dev": true
+    },
     "shebang-command": {
       "version": "1.2.0",
       "resolved": "https://botbuilder.myget.org/F/botframework-cli/npm/shebang-command/-/shebang-command-1.2.0.tgz",
@@ -2266,6 +2389,23 @@
         }
       }
     },
+    "string_decoder": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-1.1.1.tgz",
+      "integrity": "sha512-n/ShnvDi6FHbbVfviro+WojiFzv+s8MPMHBczVePfUpDJLwoLT0ht1l4YwBCbi8pJAveEEdnkHyPyTP/mzRfwg==",
+      "dev": true,
+      "requires": {
+        "safe-buffer": "~5.1.0"
+      },
+      "dependencies": {
+        "safe-buffer": {
+          "version": "5.1.2",
+          "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.1.2.tgz",
+          "integrity": "sha512-Gd2UZBJDkXlY7GbJxfsE8/nvKkUEU1G38c1siN6QP6a9PT9MmHB8GnpscSmMJSoF8LOIrt8ud/wPtojys4G6+g==",
+          "dev": true
+        }
+      }
+    },
     "strip-ansi": {
       "version": "4.0.0",
       "resolved": "https://botbuilder.myget.org/F/botframework-cli/npm/strip-ansi/-/strip-ansi-4.0.0.tgz",
@@ -2372,6 +2512,12 @@
         "is-number": "^7.0.0"
       }
     },
+    "traverse": {
+      "version": "0.3.9",
+      "resolved": "https://registry.npmjs.org/traverse/-/traverse-0.3.9.tgz",
+      "integrity": "sha1-cXuPIgzAu3tE5AUUwisui7xw2Lk=",
+      "dev": true
+    },
     "tslib": {
       "version": "1.14.1",
       "resolved": "https://botbuilder.myget.org/F/botframework-cli/npm/tslib/-/tslib-1.14.1.tgz",
@@ -2492,6 +2638,24 @@
       "integrity": "sha1-Tz+1OxBuYJf8+ctBCfKl6b36UCI=",
       "dev": true
     },
+    "unzipper": {
+      "version": "0.10.11",
+      "resolved": "https://registry.npmjs.org/unzipper/-/unzipper-0.10.11.tgz",
+      "integrity": "sha512-+BrAq2oFqWod5IESRjL3S8baohbevGcVA+teAIOYWM3pDVdseogqbzhhvvmiyQrUNKFUnDMtELW3X8ykbyDCJw==",
+      "dev": true,
+      "requires": {
+        "big-integer": "^1.6.17",
+        "binary": "~0.3.0",
+        "bluebird": "~3.4.1",
+        "buffer-indexof-polyfill": "~1.0.0",
+        "duplexer2": "~0.1.4",
+        "fstream": "^1.0.12",
+        "graceful-fs": "^4.2.2",
+        "listenercount": "~1.0.1",
+        "readable-stream": "~2.3.6",
+        "setimmediate": "~1.0.4"
+      }
+    },
     "uri-js": {
       "version": "4.4.0",
       "resolved": "https://botbuilder.myget.org/F/botframework-cli/npm/uri-js/-/uri-js-4.4.0.tgz",
@@ -2507,6 +2671,12 @@
       "integrity": "sha1-dBxsL0WWxIMNZxhGCSDQySIC3Hg=",
       "dev": true
     },
+    "util-deprecate": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/util-deprecate/-/util-deprecate-1.0.2.tgz",
+      "integrity": "sha1-RQ1Nyfpw3nMnYvvS1KKJgUGaDM8=",
+      "dev": true
+    },
     "uuid": {
       "version": "8.3.2",
       "resolved": "https://registry.npmjs.org/uuid/-/uuid-8.3.2.tgz",
@@ -2607,14 +2777,40 @@
       "integrity": "sha512-k8luDIWJWyenLc5ToFQQMaSrqCHiLwyKPHKPQZ5zz21vM+vIVUSvsRpcbiECH4WR88K2XZqc4ScRcZ7nk/jbeA=="
     },
     "vscode-test": {
-      "version": "1.4.1",
-      "resolved": "https://botbuilder.myget.org/F/botframework-cli/npm/vscode-test/-/vscode-test-1.4.1.tgz",
-      "integrity": "sha1-b0ucB9hs2ohcZV+4wOhriND+4XM=",
+      "version": "1.5.1",
+      "resolved": "https://registry.npmjs.org/vscode-test/-/vscode-test-1.5.1.tgz",
+      "integrity": "sha512-tDloz6euDne+GeUSglhufL0c2xhuYAPAT74hjsuGxfflALfXF9bYnJ7ehZEeVkr/ZnQEh/T8EBrfPL+m0h5qEQ==",
       "dev": true,
       "requires": {
-        "http-proxy-agent": "^2.1.0",
-        "https-proxy-agent": "^2.2.4",
-        "rimraf": "^2.6.3"
+        "http-proxy-agent": "^4.0.1",
+        "https-proxy-agent": "^5.0.0",
+        "rimraf": "^3.0.2",
+        "unzipper": "^0.10.11"
+      },
+      "dependencies": {
+        "glob": {
+          "version": "7.1.6",
+          "resolved": "https://registry.npmjs.org/glob/-/glob-7.1.6.tgz",
+          "integrity": "sha512-LwaxwyZ72Lk7vZINtNNrywX0ZuLyStrdDtabefZKAY5ZGJhVtgdznluResxNmPitE0SAO+O26sWTHeKSI2wMBA==",
+          "dev": true,
+          "requires": {
+            "fs.realpath": "^1.0.0",
+            "inflight": "^1.0.4",
+            "inherits": "2",
+            "minimatch": "^3.0.4",
+            "once": "^1.3.0",
+            "path-is-absolute": "^1.0.0"
+          }
+        },
+        "rimraf": {
+          "version": "3.0.2",
+          "resolved": "https://registry.npmjs.org/rimraf/-/rimraf-3.0.2.tgz",
+          "integrity": "sha512-JZkJMZkAGFFPP2YqXZXPbMlMBgsxzE8ILs4lMIX/2o0L9UBw9O/Y3o6wFw/i9YLapcUJWwqbi3kdxIPdC62TIA==",
+          "dev": true,
+          "requires": {
+            "glob": "^7.1.3"
+          }
+        }
       }
     },
     "which": {
diff --git a/package.json b/package.json
index 6bda152984..9961ebd60d 100644
--- a/package.json
+++ b/package.json
@@ -73,7 +73,7 @@
     "tslint": "~6.1.3",
     "typescript": "~4.2.2",
     "vsce": "~1.85.1",
-    "vscode-test": "~1.4.0"
+    "vscode-test": "~1.5.1"
   },
   "extensionDependencies": [
     "vscode.powershell"