diff --git a/CHANGES.txt b/CHANGES.txt
index 17f636b47..a58d9713a 100644
--- a/CHANGES.txt
+++ b/CHANGES.txt
@@ -1,3 +1,7 @@
+10.17.3 (February 25, 2022)
+ - Updated format for MySegments keys in LocalStorage, keeping backwards compatibility (issue https://github.com/splitio/javascript-client/issues/638).
+ - Updated some dependencies for vulnerability fixes.
+
 10.17.2 (January 31, 2022)
  - Updated some dependencies for vulnerability fixes.
  - Bugfixing - Fixed internal handling of Fetch API promise rejection, to avoid unhandled exceptions on some Web browsers (issue https://github.com/splitio/javascript-client/issues/621)
diff --git a/package-lock.json b/package-lock.json
index e708c4da3..457236b59 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "@splitsoftware/splitio",
-  "version": "10.17.2",
+  "version": "10.17.3",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
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+      "resolved": "https://registry.npmjs.org/@socket.io/base64-arraybuffer/-/base64-arraybuffer-1.0.2.tgz",
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-      "resolved": "https://registry.npmjs.org/@types/component-emitter/-/component-emitter-1.2.10.tgz",
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+      "resolved": "https://registry.npmjs.org/@types/component-emitter/-/component-emitter-1.2.11.tgz",
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+      "resolved": "https://registry.npmjs.org/@types/cookie/-/cookie-0.4.1.tgz",
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-      "resolved": "https://registry.npmjs.org/@types/cors/-/cors-2.8.10.tgz",
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+      "resolved": "https://registry.npmjs.org/@types/cors/-/cors-2.8.12.tgz",
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@@ -1517,13 +1523,30 @@
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+      "resolved": "https://registry.npmjs.org/accepts/-/accepts-1.3.8.tgz",
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-        "mime-types": "~2.1.24",
-        "negotiator": "0.6.2"
+        "mime-types": "~2.1.34",
+        "negotiator": "0.6.3"
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+          "dev": true
+        },
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+          "resolved": "https://registry.npmjs.org/mime-types/-/mime-types-2.1.34.tgz",
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+          "dev": true,
+          "requires": {
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@@ -1896,12 +1919,6 @@
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+      "resolved": "https://registry.npmjs.org/body-parser/-/body-parser-1.19.2.tgz",
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+        "bytes": "3.1.2",
         "content-type": "~1.0.4",
         "debug": "2.6.9",
         "depd": "~1.1.2",
-        "http-errors": "1.7.2",
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-        "qs": "6.7.0",
-        "raw-body": "2.4.0",
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+        "qs": "6.9.7",
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@@ -1989,6 +2006,15 @@
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+      "dev": true,
+      "requires": {
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@@ -2480,9 +2506,9 @@
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@@ -2713,6 +2739,12 @@
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+      "resolved": "https://registry.npmjs.org/date-format/-/date-format-4.0.3.tgz",
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       "dev": true,
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+        "@types/cors": "^2.8.12",
+        "@types/node": ">=10.0.0",
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         "cors": "~2.8.5",
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-        "engine.io-parser": "~4.0.0",
-        "ws": "~7.4.2"
+        "engine.io-parser": "~5.0.0",
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@@ -3599,6 +3642,15 @@
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@@ -3669,10 +3721,16 @@
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+      "resolved": "https://registry.npmjs.org/fs-extra/-/fs-extra-10.0.1.tgz",
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+      "requires": {
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+        "jsonfile": "^6.0.1",
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-        "inherits": "2.0.3",
-        "setprototypeof": "1.1.1",
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@@ -4471,6 +4538,16 @@
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-        "log4js": "^6.2.1",
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-          "integrity": "sha512-b8um+L1RzM3WDSzvhm6gIz1yfTbBt6YTlcEKAvsmqCZZFw46z626lVj9j1yEPW33H5H+lBQpZMP1k8l+78Ha0A==",
-          "dev": true,
-          "requires": {
-            "fill-range": "^7.0.1"
-          }
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-        "fill-range": {
-          "version": "7.0.1",
-          "resolved": "https://registry.npmjs.org/fill-range/-/fill-range-7.0.1.tgz",
-          "integrity": "sha512-qOo9F+dMUmC2Lcb4BbVvnKJxTPjCm+RRpe4gDuGrzkL7mEVl/djYSu2OdQ2Pa302N4oqkSg9ir6jaLWJ2USVpQ==",
-          "dev": true,
-          "requires": {
-            "to-regex-range": "^5.0.1"
-          }
-        },
         "glob": {
-          "version": "7.1.7",
-          "resolved": "https://registry.npmjs.org/glob/-/glob-7.1.7.tgz",
-          "integrity": "sha512-OvD9ENzPLbegENnYP5UUfJIirTg4+XwMWGaQfQTY0JenxNvvIKP3U3/tAQSPIu/lHxXYSZmpXlUHeqAIdKzBLQ==",
+          "version": "7.2.0",
+          "resolved": "https://registry.npmjs.org/glob/-/glob-7.2.0.tgz",
+          "integrity": "sha512-lmLf6gtyrPq8tTjSmrO94wBeQbFR3HbLHbuyD69wuyQkImp2hWqMGB47OX65FBkPffO641IP9jWa1z4ivqG26Q==",
           "dev": true,
           "requires": {
             "fs.realpath": "^1.0.0",
@@ -4541,21 +4600,15 @@
           }
         },
         "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
-        },
-        "is-number": {
-          "version": "7.0.0",
-          "resolved": "https://registry.npmjs.org/is-number/-/is-number-7.0.0.tgz",
-          "integrity": "sha512-41Cifkg6e8TylSpdtTpeLVMqvSBEVzTttHvERD741+pnZ8ANv0004MRL43QKPDlK9cGvNp6NZWZUBlbGXYxxng==",
+          "version": "4.2.9",
+          "resolved": "https://registry.npmjs.org/graceful-fs/-/graceful-fs-4.2.9.tgz",
+          "integrity": "sha512-NtNxqUcXgpW2iMrfqSfR73Glt39K+BLwWsPs94yR63v45T0Wbej7eRmL5cWfwEgqXnmjQp3zaJTshdRW/qC2ZQ==",
           "dev": true
         },
         "mime": {
-          "version": "2.5.2",
-          "resolved": "https://registry.npmjs.org/mime/-/mime-2.5.2.tgz",
-          "integrity": "sha512-tqkh47FzKeCPD2PUiPB6pkbMzsCasjxAfC62/Wap5qrUWcb+sFasXUC5I3gYM5iBM8v/Qpn4UK0x+j0iHyFPDg==",
+          "version": "2.6.0",
+          "resolved": "https://registry.npmjs.org/mime/-/mime-2.6.0.tgz",
+          "integrity": "sha512-USPkMeET31rOMiarsBNIHZKLGgvKc/LrjofAnBlOttf5ajRvqiRA8QsenbcooctK6d6Ts6aqZXBA+XbkKthiQg==",
           "dev": true
         },
         "source-map": {
@@ -4563,24 +4616,6 @@
           "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.6.1.tgz",
           "integrity": "sha512-UjgapumWlbMhkBgzT7Ykc5YXUT46F0iKu8SGXq0bcwP5dz/h0Plj6enJqjz1Zbq2l5WaqYnrVbwWOWMyF3F47g==",
           "dev": true
-        },
-        "tmp": {
-          "version": "0.2.1",
-          "resolved": "https://registry.npmjs.org/tmp/-/tmp-0.2.1.tgz",
-          "integrity": "sha512-76SUhtfqR2Ijn+xllcI5P1oyannHNHByD80W1q447gU3mp9G9PSpGdWmjUOHRDPiHYacIk66W7ubDTuPF3BEtQ==",
-          "dev": true,
-          "requires": {
-            "rimraf": "^3.0.0"
-          }
-        },
-        "to-regex-range": {
-          "version": "5.0.1",
-          "resolved": "https://registry.npmjs.org/to-regex-range/-/to-regex-range-5.0.1.tgz",
-          "integrity": "sha512-65P7iz6X5yEr1cwcgvQxbbIw7Uk3gOy5dIdtZ4rDveLqhrdJP+Li/Hx6tyK0NEb+2GCyneCMJiGqrADCSNk8sQ==",
-          "dev": true,
-          "requires": {
-            "is-number": "^7.0.0"
-          }
         }
       }
     },
@@ -4714,9 +4749,9 @@
       "dev": true
     },
     "log4js": {
-      "version": "6.4.0",
-      "resolved": "https://registry.npmjs.org/log4js/-/log4js-6.4.0.tgz",
-      "integrity": "sha512-ysc/XUecZJuN8NoKOssk3V0cQ29xY4fra6fnigZa5VwxFsCsvdqsdnEuAxNN89LlHpbE4KUD3zGcn+kFqonSVQ==",
+      "version": "6.4.1",
+      "resolved": "https://registry.npmjs.org/log4js/-/log4js-6.4.1.tgz",
+      "integrity": "sha512-iUiYnXqAmNKiIZ1XSAitQ4TmNs8CdZYTAWINARF3LjnsLN8tY5m0vRwd6uuWj/yNY0YHxeZodnbmxKFUOM2rMg==",
       "dev": true,
       "requires": {
         "date-format": "^4.0.3",
@@ -4726,12 +4761,6 @@
         "streamroller": "^3.0.2"
       },
       "dependencies": {
-        "date-format": {
-          "version": "4.0.3",
-          "resolved": "https://registry.npmjs.org/date-format/-/date-format-4.0.3.tgz",
-          "integrity": "sha512-7P3FyqDcfeznLZp2b+OMitV9Sz2lUnsT87WaTat9nVwqsBkTzPG3lPLNwW3en6F4pHUiWzr6vb8CLhjdK9bcxQ==",
-          "dev": true
-        },
         "debug": {
           "version": "4.3.3",
           "resolved": "https://registry.npmjs.org/debug/-/debug-4.3.3.tgz",
@@ -4741,55 +4770,11 @@
             "ms": "2.1.2"
           }
         },
-        "flatted": {
-          "version": "3.2.4",
-          "resolved": "https://registry.npmjs.org/flatted/-/flatted-3.2.4.tgz",
-          "integrity": "sha512-8/sOawo8tJ4QOBX8YlQBMxL8+RLZfxMQOif9o0KUKTNTjMYElWPE0r/m5VNFxTRd0NSw8qSy8dajrwX4RYI1Hw==",
-          "dev": true
-        },
-        "fs-extra": {
-          "version": "10.0.0",
-          "resolved": "https://registry.npmjs.org/fs-extra/-/fs-extra-10.0.0.tgz",
-          "integrity": "sha512-C5owb14u9eJwizKGdchcDUQeFtlSHHthBk8pbX9Vc1PFZrLombudjDnNns88aYslCyF6IY5SUw3Roz6xShcEIQ==",
-          "dev": true,
-          "requires": {
-            "graceful-fs": "^4.2.0",
-            "jsonfile": "^6.0.1",
-            "universalify": "^2.0.0"
-          }
-        },
-        "jsonfile": {
-          "version": "6.1.0",
-          "resolved": "https://registry.npmjs.org/jsonfile/-/jsonfile-6.1.0.tgz",
-          "integrity": "sha512-5dgndWOriYSm5cnYaJNhalLNDKOqFwyDB/rr1E9ZsGciGvKPs8R2xYGCacuf3z6K1YKDz182fd+fY3cn3pMqXQ==",
-          "dev": true,
-          "requires": {
-            "graceful-fs": "^4.1.6",
-            "universalify": "^2.0.0"
-          }
-        },
         "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
-        },
-        "streamroller": {
-          "version": "3.0.2",
-          "resolved": "https://registry.npmjs.org/streamroller/-/streamroller-3.0.2.tgz",
-          "integrity": "sha512-ur6y5S5dopOaRXBuRIZ1u6GC5bcEXHRZKgfBjfCglMhmIf+roVCECjvkEYzNQOXIN2/JPnkMPW/8B3CZoKaEPA==",
-          "dev": true,
-          "requires": {
-            "date-format": "^4.0.3",
-            "debug": "^4.1.1",
-            "fs-extra": "^10.0.0"
-          }
-        },
-        "universalify": {
-          "version": "2.0.0",
-          "resolved": "https://registry.npmjs.org/universalify/-/universalify-2.0.0.tgz",
-          "integrity": "sha512-hAZsKq7Yy11Zu1DE0OzWjw7nnLZmJZYTDZZyEFHZdUhV8FkH5MCfoU1XMaxXovpyW5nq5scPqq0ZDP9Zyl04oQ==",
-          "dev": true
         }
       }
     },
@@ -4965,9 +4950,9 @@
       "dev": true
     },
     "negotiator": {
-      "version": "0.6.2",
-      "resolved": "https://registry.npmjs.org/negotiator/-/negotiator-0.6.2.tgz",
-      "integrity": "sha512-hZXc7K2e+PgeI1eDBe/10Ard4ekbfrrqG8Ep+8Jmf4JID2bNg7NvCPOZN+kfF574pFQI7mum2AUqDidoKqcTOw==",
+      "version": "0.6.3",
+      "resolved": "https://registry.npmjs.org/negotiator/-/negotiator-0.6.3.tgz",
+      "integrity": "sha512-+EUsqGPLsM+j/zdChZjsnX51g4XrHFOIXwfnCVPGlQk/k5giakcKsuxCObBRu6DSm9opw/O6slWbJdghQM4bBg==",
       "dev": true
     },
     "neo-async": {
@@ -5543,9 +5528,9 @@
       "dev": true
     },
     "qs": {
-      "version": "6.7.0",
-      "resolved": "https://registry.npmjs.org/qs/-/qs-6.7.0.tgz",
-      "integrity": "sha512-VCdBRNFTX1fyE7Nb6FYoURo/SPe62QCaAyzJvUjwRaIsc+NePBEniHlvxFmmX56+HZphIGtV0XeCirBtpDrTyQ==",
+      "version": "6.9.7",
+      "resolved": "https://registry.npmjs.org/qs/-/qs-6.9.7.tgz",
+      "integrity": "sha512-IhMFgUmuNpyRfxA90umL7ByLlgRXu6tIfKPpF5TmcfRLlLCckfP/g3IQmju6jjpu+Hh8rA+2p6A27ZSPOOHdKw==",
       "dev": true
     },
     "querystring": {
@@ -5592,13 +5577,13 @@
       "dev": true
     },
     "raw-body": {
-      "version": "2.4.0",
-      "resolved": "https://registry.npmjs.org/raw-body/-/raw-body-2.4.0.tgz",
-      "integrity": "sha512-4Oz8DUIwdvoa5qMJelxipzi/iJIi40O5cGV1wNYp5hvZP8ZN0T+jiNkL0QepXs+EsQ9XJ8ipEDoiH70ySUJP3Q==",
+      "version": "2.4.3",
+      "resolved": "https://registry.npmjs.org/raw-body/-/raw-body-2.4.3.tgz",
+      "integrity": "sha512-UlTNLIcu0uzb4D2f4WltY6cVjLi+/jEN4lgEUj3E04tpMDpUlkBo/eSn6zou9hum2VMNpCCUone0O0WeJim07g==",
       "dev": true,
       "requires": {
-        "bytes": "3.1.0",
-        "http-errors": "1.7.2",
+        "bytes": "3.1.2",
+        "http-errors": "1.8.1",
         "iconv-lite": "0.4.24",
         "unpipe": "1.0.0"
       }
@@ -6078,9 +6063,9 @@
       "dev": true
     },
     "setprototypeof": {
-      "version": "1.1.1",
-      "resolved": "https://registry.npmjs.org/setprototypeof/-/setprototypeof-1.1.1.tgz",
-      "integrity": "sha512-JvdAWfbXeIGaZ9cILp38HntZSFSo3mWg6xGcJJsd+d4aRMOqauag1C63dJfDw7OaMYwEbHMOxEZ1lqVRYP2OAw==",
+      "version": "1.2.0",
+      "resolved": "https://registry.npmjs.org/setprototypeof/-/setprototypeof-1.2.0.tgz",
+      "integrity": "sha512-E5LDX7Wrp85Kil5bhZv46j8jOeboKq5JMmYM3gVGdGH8xFpPWXUMsNrlODCrkoxMEeNi/XZIwuRvY4XNwYMJpw==",
       "dev": true
     },
     "sha.js": {
@@ -6174,26 +6159,40 @@
       "dev": true
     },
     "socket.io": {
-      "version": "3.1.2",
-      "resolved": "https://registry.npmjs.org/socket.io/-/socket.io-3.1.2.tgz",
-      "integrity": "sha512-JubKZnTQ4Z8G4IZWtaAZSiRP3I/inpy8c/Bsx2jrwGrTbKeVU5xd6qkKMHpChYeM3dWZSO0QACiGK+obhBNwYw==",
+      "version": "4.4.1",
+      "resolved": "https://registry.npmjs.org/socket.io/-/socket.io-4.4.1.tgz",
+      "integrity": "sha512-s04vrBswdQBUmuWJuuNTmXUVJhP0cVky8bBDhdkf8y0Ptsu7fKU2LuLbts9g+pdmAdyMMn8F/9Mf1/wbtUN0fg==",
       "dev": true,
       "requires": {
-        "@types/cookie": "^0.4.0",
-        "@types/cors": "^2.8.8",
-        "@types/node": ">=10.0.0",
         "accepts": "~1.3.4",
         "base64id": "~2.0.0",
-        "debug": "~4.3.1",
-        "engine.io": "~4.1.0",
-        "socket.io-adapter": "~2.1.0",
-        "socket.io-parser": "~4.0.3"
+        "debug": "~4.3.2",
+        "engine.io": "~6.1.0",
+        "socket.io-adapter": "~2.3.3",
+        "socket.io-parser": "~4.0.4"
+      },
+      "dependencies": {
+        "debug": {
+          "version": "4.3.3",
+          "resolved": "https://registry.npmjs.org/debug/-/debug-4.3.3.tgz",
+          "integrity": "sha512-/zxw5+vh1Tfv+4Qn7a5nsbcJKPaSvCDhojn6FEl9vupwK2VCSDtEiEtqr8DFtzYFOdz63LBkxec7DYuc2jon6Q==",
+          "dev": true,
+          "requires": {
+            "ms": "2.1.2"
+          }
+        },
+        "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
+        }
       }
     },
     "socket.io-adapter": {
-      "version": "2.1.0",
-      "resolved": "https://registry.npmjs.org/socket.io-adapter/-/socket.io-adapter-2.1.0.tgz",
-      "integrity": "sha512-+vDov/aTsLjViYTwS9fPy5pEtTkrbEKsw2M+oVSoFGw6OD1IpvlV1VPhUzNbofCQ8oyMbdYJqDtGdmHQK6TdPg==",
+      "version": "2.3.3",
+      "resolved": "https://registry.npmjs.org/socket.io-adapter/-/socket.io-adapter-2.3.3.tgz",
+      "integrity": "sha512-Qd/iwn3VskrpNO60BeRyCyr8ZWw9CPZyitW4AQwmRZ8zCiyDiL+znRnWX6tDHXnWn1sJrM1+b6Mn6wEDJJ4aYQ==",
       "dev": true
     },
     "socket.io-parser": {
@@ -6295,6 +6294,17 @@
         }
       }
     },
+    "streamroller": {
+      "version": "3.0.2",
+      "resolved": "https://registry.npmjs.org/streamroller/-/streamroller-3.0.2.tgz",
+      "integrity": "sha512-ur6y5S5dopOaRXBuRIZ1u6GC5bcEXHRZKgfBjfCglMhmIf+roVCECjvkEYzNQOXIN2/JPnkMPW/8B3CZoKaEPA==",
+      "dev": true,
+      "requires": {
+        "date-format": "^4.0.3",
+        "debug": "^4.1.1",
+        "fs-extra": "^10.0.0"
+      }
+    },
     "string.prototype.trim": {
       "version": "1.2.1",
       "resolved": "https://registry.npmjs.org/string.prototype.trim/-/string.prototype.trim-1.2.1.tgz",
@@ -6676,16 +6686,34 @@
         "setimmediate": "^1.0.4"
       }
     },
+    "tmp": {
+      "version": "0.2.1",
+      "resolved": "https://registry.npmjs.org/tmp/-/tmp-0.2.1.tgz",
+      "integrity": "sha512-76SUhtfqR2Ijn+xllcI5P1oyannHNHByD80W1q447gU3mp9G9PSpGdWmjUOHRDPiHYacIk66W7ubDTuPF3BEtQ==",
+      "dev": true,
+      "requires": {
+        "rimraf": "^3.0.0"
+      }
+    },
     "to-fast-properties": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/to-fast-properties/-/to-fast-properties-2.0.0.tgz",
       "integrity": "sha1-3F5pjL0HkmW8c+A3doGk5Og/YW4=",
       "dev": true
     },
+    "to-regex-range": {
+      "version": "5.0.1",
+      "resolved": "https://registry.npmjs.org/to-regex-range/-/to-regex-range-5.0.1.tgz",
+      "integrity": "sha512-65P7iz6X5yEr1cwcgvQxbbIw7Uk3gOy5dIdtZ4rDveLqhrdJP+Li/Hx6tyK0NEb+2GCyneCMJiGqrADCSNk8sQ==",
+      "dev": true,
+      "requires": {
+        "is-number": "^7.0.0"
+      }
+    },
     "toidentifier": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/toidentifier/-/toidentifier-1.0.0.tgz",
-      "integrity": "sha512-yaOH/Pk/VEhBWWTlhI+qXxDFXlejDGcQipMlyxda9nthulaxLZUNcUqFxokp0vcYnvteJln5FNQDRrxj3YcbVw==",
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/toidentifier/-/toidentifier-1.0.1.tgz",
+      "integrity": "sha512-o5sSPKEkg/DIQNmH43V0/uerLrpzVedkUh8tGNvaeXpfpuwjKenlSox/2O/BTlZUtEe+JG7s5YhEz608PlAHRA==",
       "dev": true
     },
     "tr46": {
@@ -6735,9 +6763,9 @@
       }
     },
     "ua-parser-js": {
-      "version": "0.7.28",
-      "resolved": "https://registry.npmjs.org/ua-parser-js/-/ua-parser-js-0.7.28.tgz",
-      "integrity": "sha512-6Gurc1n//gjp9eQNXjD9O3M/sMwVtN5S8Lv9bvOYBfKfDNiIIhqiyi01vMBO45u4zkDE420w/e0se7Vs+sIg+g==",
+      "version": "0.7.31",
+      "resolved": "https://registry.npmjs.org/ua-parser-js/-/ua-parser-js-0.7.31.tgz",
+      "integrity": "sha512-qLK/Xe9E2uzmYI3qLeOmI0tEOt+TBBQyUIAh4aAgU05FVYzeZrKUdkAZfBNVGRaHVgV0TDkdEngJSw/SyQchkQ==",
       "dev": true
     },
     "unbox-primitive": {
@@ -6803,6 +6831,12 @@
       "integrity": "sha512-PqSoPh/pWetQ2phoj5RLiaqIk4kCNwoV3CI+LfGmWLKI3rE3kl1h59XpX2BjgDrmbxD9ARtQobPGU1SguCYuQg==",
       "dev": true
     },
+    "universalify": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/universalify/-/universalify-2.0.0.tgz",
+      "integrity": "sha512-hAZsKq7Yy11Zu1DE0OzWjw7nnLZmJZYTDZZyEFHZdUhV8FkH5MCfoU1XMaxXovpyW5nq5scPqq0ZDP9Zyl04oQ==",
+      "dev": true
+    },
     "unpipe": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/unpipe/-/unpipe-1.0.0.tgz",
@@ -6849,9 +6883,9 @@
       }
     },
     "url-parse": {
-      "version": "1.5.3",
-      "resolved": "https://registry.npmjs.org/url-parse/-/url-parse-1.5.3.tgz",
-      "integrity": "sha512-IIORyIQD9rvj0A4CLWsHkBBJuNqWpFQe224b6j9t/ABmquIS0qDU2pY6kl6AuOrL5OkCXHMCFNe1jBcuAggjvQ==",
+      "version": "1.5.7",
+      "resolved": "https://registry.npmjs.org/url-parse/-/url-parse-1.5.7.tgz",
+      "integrity": "sha512-HxWkieX+STA38EDk7CE9MEryFeHCKzgagxlGvsdS7WBImq9Mk+PGwiT56w82WI3aicwJA8REp42Cxo98c8FZMA==",
       "optional": true,
       "requires": {
         "querystringify": "^2.1.1",
diff --git a/package.json b/package.json
index 9192a6dc9..32e51ba24 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@splitsoftware/splitio",
-  "version": "10.17.2",
+  "version": "10.17.3",
   "description": "Split SDK",
   "files": [
     "README.md",
diff --git a/src/__tests__/errorCatching/browser.spec.js b/src/__tests__/errorCatching/browser.spec.js
index f5d4f88a7..bd3fb80dc 100644
--- a/src/__tests__/errorCatching/browser.spec.js
+++ b/src/__tests__/errorCatching/browser.spec.js
@@ -18,7 +18,7 @@ const settings = SettingsFactory({
 
 // prepare localstorage to emit SDK_READY_FROM_CACHE
 localStorage.clear();
-localStorage.setItem('errorCatching.SPLITIO.splits.till', 25);
+localStorage.setItem('SPLITIO.splits.till', 25);
 
 fetchMock.get(settings.url('/splitChanges?since=25'), function () {
   return new Promise((res) => { setTimeout(() => res({ status: 200, body: splitChangesMock1 }), 1000); });
@@ -53,7 +53,7 @@ tape('Error catching on callbacks - Browsers', assert => {
     },
     storage: {
       type: 'LOCALSTORAGE',
-      prefix: 'errorCatching'
+      // Using default prefix 'SPLITIO'
     },
     streamingEnabled: false
   });
diff --git a/src/storage/KeysLocalStorage.js b/src/storage/KeysLocalStorage.js
index 1c9a044f6..1e59cec66 100644
--- a/src/storage/KeysLocalStorage.js
+++ b/src/storage/KeysLocalStorage.js
@@ -10,11 +10,11 @@ class KeyBuilderForLocalStorage extends KeyBuilder {
   }
 
   buildSegmentNameKey(segmentName) {
-    return `${matching(this.settings.core.key)}.${this.settings.storage.prefix}.segment.${segmentName}`;
+    return `${this.settings.storage.prefix}.${matching(this.settings.core.key)}.segment.${segmentName}`;
   }
 
   extractSegmentName(builtSegmentKeyName) {
-    const prefix = `${matching(this.settings.core.key)}.${this.settings.storage.prefix}.segment.`;
+    const prefix = `${this.settings.storage.prefix}.${matching(this.settings.core.key)}.segment.`;
 
     if (startsWith(builtSegmentKeyName, prefix))
       return builtSegmentKeyName.substr(prefix.length);
@@ -35,6 +35,18 @@ class KeyBuilderForLocalStorage extends KeyBuilder {
   buildSplitsFilterQueryKey() {
     return `${this.settings.storage.prefix}.splits.filterQuery`;
   }
+
+  // @BREAKING: The key used to start with the matching key instead of the prefix, this was changed on version 10.17.3
+  buildOldSegmentNameKey(segmentName) {
+    return `${matching(this.settings.core.key)}.${this.settings.storage.prefix}.segment.${segmentName}`;
+  }
+  // @BREAKING: The key used to start with the matching key instead of the prefix, this was changed on version 10.17.3
+  extractOldSegmentKey(maybeOldKey) {
+    const prefix = `${matching(this.settings.core.key)}.${this.settings.storage.prefix}.segment.`;
+
+    if (startsWith(maybeOldKey, prefix))
+      return maybeOldKey.substr(prefix.length);
+  }
 }
 
 export default KeyBuilderForLocalStorage;
diff --git a/src/storage/SegmentCache/InLocalStorage/index.js b/src/storage/SegmentCache/InLocalStorage/index.js
index 526588dbd..82b2e60b9 100644
--- a/src/storage/SegmentCache/InLocalStorage/index.js
+++ b/src/storage/SegmentCache/InLocalStorage/index.js
@@ -46,9 +46,29 @@ class SegmentCacheInLocalStorage {
 
     // Scan current values from localStorage
     const storedSegmentNames = Object.keys(localStorage).reduce((accum, key) => {
-      const segmentName = this.keys.extractSegmentName(key);
-
-      if (segmentName) accum.push(segmentName);
+      let segmentName = this.keys.extractSegmentName(key);
+
+      if (segmentName) {
+        accum.push(segmentName);
+      } else {
+        // @BREAKING: This is only to clean up "old" keys. Remove this whole else code block.
+        segmentName = this.keys.extractOldSegmentKey(key);
+
+        if (segmentName) { // this was an old segment key, let's clean up.
+          const newSegmentKey = this.keys.buildSegmentNameKey(segmentName);
+          try {
+            // If the new format key is not there, create it.
+            if (!localStorage.getItem(newSegmentKey) && segmentNames.indexOf(segmentName) > -1) {
+              localStorage.setItem(newSegmentKey, DEFINED);
+              // we are migrating a segment, let's track it.
+              accum.push(segmentName);
+            }
+            localStorage.removeItem(key); // we migrated the current key, let's delete it.
+          } catch (e) {
+            log.error(e);
+          }
+        }
+      }
 
       return accum;
     }, []);
@@ -65,7 +85,7 @@ class SegmentCacheInLocalStorage {
       segmentNames.forEach(segmentName => this.addToSegment(segmentName));
     } else {
       // Slowest path => we need to find at least 1 difference because
-      for(index = 0; index < segmentNames.length && storedSegmentNames.indexOf(segmentNames[index]) !== -1; index++) {
+      for (index = 0; index < segmentNames.length && storedSegmentNames.indexOf(segmentNames[index]) !== -1; index++) {
         // TODO: why empty statement?
       }
 
diff --git a/src/storage/__tests__/SegmentCache/InLocalStorage/browser.spec.js b/src/storage/__tests__/SegmentCache/InLocalStorage/browser.spec.js
index 9bb772504..63c61d8bc 100644
--- a/src/storage/__tests__/SegmentCache/InLocalStorage/browser.spec.js
+++ b/src/storage/__tests__/SegmentCache/InLocalStorage/browser.spec.js
@@ -19,5 +19,41 @@ tape('SEGMENT CACHE / in LocalStorage', assert => {
 
   assert.ok( cache.isInSegment('mocked-segment') === false );
 
+  cache.flush();
+  assert.end();
+});
+
+// @BREAKING: REMOVE when removing this backwards compatibility.
+tape('SEGMENT CACHE / in LocalStorage migration for mysegments keys', assert => {
+
+  const keys = new KeyBuilder(SettingsFactory({
+    core: { key: 'test_nico' },
+    storage:{ prefix: 'LS_BC_test'}
+  }));
+  const cache =  new SegmentCacheInLocalStorage(keys);
+  const oldKey1 = 'test_nico.LS_BC_test.SPLITIO.segment.segment1';
+  const oldKey2 = 'test_nico.LS_BC_test.SPLITIO.segment.segment2';
+  const newKey1 = keys.buildSegmentNameKey('segment1');
+  const newKey2 = keys.buildSegmentNameKey('segment2');
+
+  cache.flush(); // cleanup before starting.
+
+  // Not adding a full suite for LS keys now, testing here
+  assert.equal(oldKey1, keys.buildOldSegmentNameKey('segment1'));
+  assert.equal('segment1', keys.extractOldSegmentKey(oldKey1));
+
+  // add two segments, one we don't want to send on reset, should only be cleared, other one will be migrated.
+  localStorage.setItem(oldKey1, 1);
+  localStorage.setItem(oldKey2, 1);
+  assert.equal(localStorage.getItem(newKey1), null, 'control assertion');
+
+  cache.resetSegments(['segment1']);
+
+  assert.equal(localStorage.getItem(newKey1), '1', 'The segment key for segment1, as is part of the new list, should be migrated.');
+  assert.equal(localStorage.getItem(newKey2), null, 'The segment key for segment2 should not be migrated.');
+  assert.equal(localStorage.getItem(oldKey1), null, 'Old keys are removed.');
+  assert.equal(localStorage.getItem(oldKey2), null, 'Old keys are removed.');
+
+  cache.flush();
   assert.end();
 });
\ No newline at end of file
diff --git a/src/utils/settings/index.js b/src/utils/settings/index.js
index ea1507169..0de1e1a01 100644
--- a/src/utils/settings/index.js
+++ b/src/utils/settings/index.js
@@ -27,7 +27,7 @@ import { API } from '../../utils/logger';
 import { STANDALONE_MODE, STORAGE_MEMORY, CONSUMER_MODE, OPTIMIZED } from '../../utils/constants';
 import validImpressionsMode from './impressionsMode';
 
-const version = '10.17.2';
+const version = '10.17.3';
 const eventsEndpointMatcher = /^\/(testImpressions|metrics|events)/;
 const authEndpointMatcher = /^\/v2\/auth/;
 const streamingEndpointMatcher = /^\/(sse|event-stream)/;