diff --git a/composer.lock b/composer.lock
index 3c1262a..30c0c79 100644
--- a/composer.lock
+++ b/composer.lock
@@ -242,16 +242,16 @@
         },
         {
             "name": "zendframework/zend-diactoros",
-            "version": "1.6.1",
+            "version": "1.8.6",
             "source": {
                 "type": "git",
                 "url": "https://github.com/zendframework/zend-diactoros.git",
-                "reference": "c8664b92a6d5bc229e48b0923486c097e45a7877"
+                "reference": "20da13beba0dde8fb648be3cc19765732790f46e"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/zendframework/zend-diactoros/zipball/c8664b92a6d5bc229e48b0923486c097e45a7877",
-                "reference": "c8664b92a6d5bc229e48b0923486c097e45a7877",
+                "url": "https://api.github.com/repos/zendframework/zend-diactoros/zipball/20da13beba0dde8fb648be3cc19765732790f46e",
+                "reference": "20da13beba0dde8fb648be3cc19765732790f46e",
                 "shasum": ""
             },
             "require": {
@@ -264,17 +264,29 @@
             "require-dev": {
                 "ext-dom": "*",
                 "ext-libxml": "*",
-                "phpunit/phpunit": "^5.7.16 || ^6.0.8",
+                "php-http/psr7-integration-tests": "dev-master",
+                "phpunit/phpunit": "^5.7.16 || ^6.0.8 || ^7.2.7",
                 "zendframework/zend-coding-standard": "~1.0"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "1.6-dev",
-                    "dev-develop": "1.7-dev"
+                    "dev-master": "1.8.x-dev",
+                    "dev-develop": "1.9.x-dev",
+                    "dev-release-2.0": "2.0.x-dev"
                 }
             },
             "autoload": {
+                "files": [
+                    "src/functions/create_uploaded_file.php",
+                    "src/functions/marshal_headers_from_sapi.php",
+                    "src/functions/marshal_method_from_sapi.php",
+                    "src/functions/marshal_protocol_version_from_sapi.php",
+                    "src/functions/marshal_uri_from_sapi.php",
+                    "src/functions/normalize_server.php",
+                    "src/functions/normalize_uploaded_files.php",
+                    "src/functions/parse_cookie_header.php"
+                ],
                 "psr-4": {
                     "Zend\\Diactoros\\": "src/"
                 }
@@ -290,38 +302,39 @@
                 "psr",
                 "psr-7"
             ],
-            "time": "2017-10-12T15:24:51+00:00"
+            "time": "2018-09-05T19:29:37+00:00"
         },
         {
             "name": "zendframework/zendxml",
-            "version": "1.0.2",
+            "version": "1.1.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/zendframework/ZendXml.git",
-                "reference": "7b64507bc35d841c9c5802d67f6f87ef8e1a58c9"
+                "reference": "267db6a2c431a08a8f8ff0f1f4c302a5ba6f5b99"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/zendframework/ZendXml/zipball/7b64507bc35d841c9c5802d67f6f87ef8e1a58c9",
-                "reference": "7b64507bc35d841c9c5802d67f6f87ef8e1a58c9",
+                "url": "https://api.github.com/repos/zendframework/ZendXml/zipball/267db6a2c431a08a8f8ff0f1f4c302a5ba6f5b99",
+                "reference": "267db6a2c431a08a8f8ff0f1f4c302a5ba6f5b99",
                 "shasum": ""
             },
             "require": {
-                "php": "^5.3.3 || ^7.0"
+                "php": "^5.6 || ^7.0"
             },
             "require-dev": {
-                "phpunit/phpunit": "^3.7 || ^4.0",
-                "squizlabs/php_codesniffer": "^1.5"
+                "phpunit/phpunit": "^5.7.27 || ^6.5.8 || ^7.1.4",
+                "zendframework/zend-coding-standard": "~1.0.0"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "1.0-dev"
+                    "dev-master": "1.1.x-dev",
+                    "dev-develop": "1.2.x-dev"
                 }
             },
             "autoload": {
-                "psr-0": {
-                    "ZendXml\\": "library/"
+                "psr-4": {
+                    "ZendXml\\": "src/"
                 }
             },
             "notification-url": "https://packagist.org/downloads/",
@@ -329,13 +342,13 @@
                 "BSD-3-Clause"
             ],
             "description": "Utility library for XML usage, best practices, and security in PHP",
-            "homepage": "http://packages.zendframework.com/",
             "keywords": [
+                "ZendFramework",
                 "security",
                 "xml",
-                "zf2"
+                "zf"
             ],
-            "time": "2016-02-04T21:02:08+00:00"
+            "time": "2018-04-30T15:11:04+00:00"
         }
     ],
     "packages-dev": [
diff --git a/lib/REST.php b/lib/REST.php
index fa457a9..0dcd6ec 100644
--- a/lib/REST.php
+++ b/lib/REST.php
@@ -43,10 +43,10 @@ class REST {
         // Fever                https://feedafever.com/api
         // Feedbin v2           https://github.com/feedbin/feedbin-api
         // CommaFeed            https://www.commafeed.com/api/
+        // Selfoss              https://github.com/SSilence/selfoss/wiki/Restful-API-for-Apps-or-any-other-external-access
         // Unclear if clients exist:
         // Miniflux             https://github.com/miniflux/miniflux/blob/master/docs/json-rpc-api.markdown
         // NextCloud News v2    https://github.com/nextcloud/news/blob/master/docs/externalapi/External-Api.md
-        // Selfoss              https://github.com/SSilence/selfoss/wiki/Restful-API-for-Apps-or-any-other-external-access
         // BirdReader           https://github.com/glynnbird/birdreader/blob/master/API.md
         // Feedbin v1           https://github.com/feedbin/feedbin-api/commit/86da10aac5f1a57531a6e17b08744e5f9e7db8a9
         // Proprietary (centralized) entities:
diff --git a/tests/cases/REST/TestREST.php b/tests/cases/REST/TestREST.php
index ebfd79d..fcc4965 100644
--- a/tests/cases/REST/TestREST.php
+++ b/tests/cases/REST/TestREST.php
@@ -156,7 +156,8 @@ class TestREST extends \JKingWeb\Arsse\Test\AbstractTest {
         Phake::when($r)->corsNormalizeOrigin->thenReturnCallback(function ($origin) {
             return $origin;
         });
-        $req = new Request("", "GET", "php://memory", ['Origin' => $origin]);
+        $headers = isset($origin) ? ['Origin' => $origin] : [];
+        $req = new Request("", "GET", "php://memory", $headers);
         $act = $r->corsNegotiate($req, $allowed, $denied);
         $this->assertSame($exp, $act);
     }
@@ -182,7 +183,7 @@ class TestREST extends \JKingWeb\Arsse\Test\AbstractTest {
             ["",                         false, "*",               "*"             ],
             ["",                         false, "*",               ""              ],
             [["null", "http://example"], false, "*",               ""              ],
-            [[],                         false, "*",               ""              ],
+            [null,                       false, "*",               ""              ],
         ];
     }
 
diff --git a/vendor-bin/csfixer/composer.lock b/vendor-bin/csfixer/composer.lock
index b5d302e..9b25d49 100644
--- a/vendor-bin/csfixer/composer.lock
+++ b/vendor-bin/csfixer/composer.lock
@@ -68,6 +68,50 @@
             ],
             "time": "2016-08-30T16:08:34+00:00"
         },
+        {
+            "name": "composer/xdebug-handler",
+            "version": "1.3.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/composer/xdebug-handler.git",
+                "reference": "b8e9745fb9b06ea6664d8872c4505fb16df4611c"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/composer/xdebug-handler/zipball/b8e9745fb9b06ea6664d8872c4505fb16df4611c",
+                "reference": "b8e9745fb9b06ea6664d8872c4505fb16df4611c",
+                "shasum": ""
+            },
+            "require": {
+                "php": "^5.3.2 || ^7.0",
+                "psr/log": "^1.0"
+            },
+            "require-dev": {
+                "phpunit/phpunit": "^4.8.35 || ^5.7 || ^6.5"
+            },
+            "type": "library",
+            "autoload": {
+                "psr-4": {
+                    "Composer\\XdebugHandler\\": "src"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "John Stevenson",
+                    "email": "john-stevenson@blueyonder.co.uk"
+                }
+            ],
+            "description": "Restarts a process without xdebug.",
+            "keywords": [
+                "Xdebug",
+                "performance"
+            ],
+            "time": "2018-08-31T19:07:57+00:00"
+        },
         {
             "name": "doctrine/annotations",
             "version": "v1.4.0",
@@ -192,27 +236,27 @@
         },
         {
             "name": "friendsofphp/php-cs-fixer",
-            "version": "v2.9.0",
+            "version": "v2.13.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/FriendsOfPHP/PHP-CS-Fixer.git",
-                "reference": "454ddbe65da6a9297446f442bad244e8a99a9a38"
+                "reference": "54814c62d5beef3ba55297b9b3186ed8b8a1b161"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/FriendsOfPHP/PHP-CS-Fixer/zipball/454ddbe65da6a9297446f442bad244e8a99a9a38",
-                "reference": "454ddbe65da6a9297446f442bad244e8a99a9a38",
+                "url": "https://api.github.com/repos/FriendsOfPHP/PHP-CS-Fixer/zipball/54814c62d5beef3ba55297b9b3186ed8b8a1b161",
+                "reference": "54814c62d5beef3ba55297b9b3186ed8b8a1b161",
                 "shasum": ""
             },
             "require": {
                 "composer/semver": "^1.4",
+                "composer/xdebug-handler": "^1.2",
                 "doctrine/annotations": "^1.2",
                 "ext-json": "*",
                 "ext-tokenizer": "*",
-                "gecko-packages/gecko-php-unit": "^2.0 || ^3.0",
                 "php": "^5.6 || >=7.0 <7.3",
-                "php-cs-fixer/diff": "^1.2",
-                "symfony/console": "^3.2 || ^4.0",
+                "php-cs-fixer/diff": "^1.3",
+                "symfony/console": "^3.4.17 || ^4.1.6",
                 "symfony/event-dispatcher": "^3.0 || ^4.0",
                 "symfony/filesystem": "^3.0 || ^4.0",
                 "symfony/finder": "^3.0 || ^4.0",
@@ -226,16 +270,22 @@
                 "hhvm": "*"
             },
             "require-dev": {
-                "johnkary/phpunit-speedtrap": "^1.1 || ^2.0@dev",
+                "johnkary/phpunit-speedtrap": "^1.1 || ^2.0 || ^3.0",
                 "justinrainbow/json-schema": "^5.0",
+                "keradus/cli-executor": "^1.1",
                 "mikey179/vfsstream": "^1.6",
-                "php-coveralls/php-coveralls": "^2.0",
+                "php-coveralls/php-coveralls": "^2.1",
                 "php-cs-fixer/accessible-object": "^1.0",
-                "phpunit/phpunit": "^5.7.23 || ^6.4.3",
-                "symfony/phpunit-bridge": "^3.2.2 || ^4.0"
+                "php-cs-fixer/phpunit-constraint-isidenticalstring": "^1.0.1",
+                "php-cs-fixer/phpunit-constraint-xmlmatchesxsd": "^1.0.1",
+                "phpunit/phpunit": "^5.7.27 || ^6.5.8 || ^7.1",
+                "phpunitgoodpractices/traits": "^1.5.1",
+                "symfony/phpunit-bridge": "^4.0"
             },
             "suggest": {
                 "ext-mbstring": "For handling non-UTF8 characters in cache signature.",
+                "php-cs-fixer/phpunit-constraint-isidenticalstring": "For IsIdenticalString constraint.",
+                "php-cs-fixer/phpunit-constraint-xmlmatchesxsd": "For XmlMatchesXsd constraint.",
                 "symfony/polyfill-mbstring": "When enabling `ext-mbstring` is not possible."
             },
             "bin": [
@@ -247,11 +297,15 @@
                     "PhpCsFixer\\": "src/"
                 },
                 "classmap": [
-                    "tests/Test/Assert/AssertTokensTrait.php",
                     "tests/Test/AbstractFixerTestCase.php",
+                    "tests/Test/AbstractIntegrationCaseFactory.php",
                     "tests/Test/AbstractIntegrationTestCase.php",
+                    "tests/Test/Assert/AssertTokensTrait.php",
                     "tests/Test/IntegrationCase.php",
-                    "tests/Test/IntegrationCaseFactory.php"
+                    "tests/Test/IntegrationCaseFactory.php",
+                    "tests/Test/IntegrationCaseFactoryInterface.php",
+                    "tests/Test/InternalIntegrationCaseFactory.php",
+                    "tests/TestCase.php"
                 ]
             },
             "notification-url": "https://packagist.org/downloads/",
@@ -269,86 +323,33 @@
                 }
             ],
             "description": "A tool to automatically fix PHP code style",
-            "time": "2017-12-08T16:36:20+00:00"
-        },
-        {
-            "name": "gecko-packages/gecko-php-unit",
-            "version": "v3.0",
-            "source": {
-                "type": "git",
-                "url": "https://github.com/GeckoPackages/GeckoPHPUnit.git",
-                "reference": "6a866551dffc2154c1b091bae3a7877d39c25ca3"
-            },
-            "dist": {
-                "type": "zip",
-                "url": "https://api.github.com/repos/GeckoPackages/GeckoPHPUnit/zipball/6a866551dffc2154c1b091bae3a7877d39c25ca3",
-                "reference": "6a866551dffc2154c1b091bae3a7877d39c25ca3",
-                "shasum": ""
-            },
-            "require": {
-                "php": "^7.0"
-            },
-            "require-dev": {
-                "phpunit/phpunit": "^6.0"
-            },
-            "suggest": {
-                "ext-dom": "When testing with xml.",
-                "ext-libxml": "When testing with xml.",
-                "phpunit/phpunit": "This is an extension for it so make sure you have it some way."
-            },
-            "type": "library",
-            "extra": {
-                "branch-alias": {
-                    "dev-master": "3.0-dev"
-                }
-            },
-            "autoload": {
-                "psr-4": {
-                    "GeckoPackages\\PHPUnit\\": "src/PHPUnit"
-                }
-            },
-            "notification-url": "https://packagist.org/downloads/",
-            "license": [
-                "MIT"
-            ],
-            "description": "Additional PHPUnit asserts and constraints.",
-            "homepage": "https://github.com/GeckoPackages",
-            "keywords": [
-                "extension",
-                "filesystem",
-                "phpunit"
-            ],
-            "time": "2017-08-23T07:46:41+00:00"
+            "time": "2018-10-21T00:32:10+00:00"
         },
         {
             "name": "paragonie/random_compat",
-            "version": "v2.0.11",
+            "version": "v9.99.99",
             "source": {
                 "type": "git",
                 "url": "https://github.com/paragonie/random_compat.git",
-                "reference": "5da4d3c796c275c55f057af5a643ae297d96b4d8"
+                "reference": "84b4dfb120c6f9b4ff7b3685f9b8f1aa365a0c95"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/paragonie/random_compat/zipball/5da4d3c796c275c55f057af5a643ae297d96b4d8",
-                "reference": "5da4d3c796c275c55f057af5a643ae297d96b4d8",
+                "url": "https://api.github.com/repos/paragonie/random_compat/zipball/84b4dfb120c6f9b4ff7b3685f9b8f1aa365a0c95",
+                "reference": "84b4dfb120c6f9b4ff7b3685f9b8f1aa365a0c95",
                 "shasum": ""
             },
             "require": {
-                "php": ">=5.2.0"
+                "php": "^7"
             },
             "require-dev": {
-                "phpunit/phpunit": "4.*|5.*"
+                "phpunit/phpunit": "4.*|5.*",
+                "vimeo/psalm": "^1"
             },
             "suggest": {
                 "ext-libsodium": "Provides a modern crypto API that can be used to generate random bytes."
             },
             "type": "library",
-            "autoload": {
-                "files": [
-                    "lib/random.php"
-                ]
-            },
             "notification-url": "https://packagist.org/downloads/",
             "license": [
                 "MIT"
@@ -363,30 +364,31 @@
             "description": "PHP 5.x polyfill for random_bytes() and random_int() from PHP 7",
             "keywords": [
                 "csprng",
+                "polyfill",
                 "pseudorandom",
                 "random"
             ],
-            "time": "2017-09-27T21:40:39+00:00"
+            "time": "2018-07-02T15:55:56+00:00"
         },
         {
             "name": "php-cs-fixer/diff",
-            "version": "v1.2.0",
+            "version": "v1.3.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/PHP-CS-Fixer/diff.git",
-                "reference": "f0ef6133d674137e902fdf8a6f2e8e97e14a087b"
+                "reference": "78bb099e9c16361126c86ce82ec4405ebab8e756"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/PHP-CS-Fixer/diff/zipball/f0ef6133d674137e902fdf8a6f2e8e97e14a087b",
-                "reference": "f0ef6133d674137e902fdf8a6f2e8e97e14a087b",
+                "url": "https://api.github.com/repos/PHP-CS-Fixer/diff/zipball/78bb099e9c16361126c86ce82ec4405ebab8e756",
+                "reference": "78bb099e9c16361126c86ce82ec4405ebab8e756",
                 "shasum": ""
             },
             "require": {
                 "php": "^5.6 || ^7.0"
             },
             "require-dev": {
-                "phpunit/phpunit": "^4.8.35 || ^5.4.3",
+                "phpunit/phpunit": "^5.7.23 || ^6.4.3",
                 "symfony/process": "^3.3"
             },
             "type": "library",
@@ -396,6 +398,9 @@
                 ]
             },
             "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "BSD-3-Clause"
+            ],
             "authors": [
                 {
                     "name": "Kore Nordmann",
@@ -414,7 +419,7 @@
             "keywords": [
                 "diff"
             ],
-            "time": "2017-10-19T09:58:18+00:00"
+            "time": "2018-02-15T16:58:55+00:00"
         },
         {
             "name": "psr/log",
@@ -465,16 +470,16 @@
         },
         {
             "name": "symfony/console",
-            "version": "v3.4.2",
+            "version": "v3.4.17",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/console.git",
-                "reference": "9f21adfb92a9315b73ae2ed43138988ee4913d4e"
+                "reference": "3b2b415d4c48fbefca7dc742aa0a0171bfae4e0b"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/console/zipball/9f21adfb92a9315b73ae2ed43138988ee4913d4e",
-                "reference": "9f21adfb92a9315b73ae2ed43138988ee4913d4e",
+                "url": "https://api.github.com/repos/symfony/console/zipball/3b2b415d4c48fbefca7dc742aa0a0171bfae4e0b",
+                "reference": "3b2b415d4c48fbefca7dc742aa0a0171bfae4e0b",
                 "shasum": ""
             },
             "require": {
@@ -495,7 +500,7 @@
                 "symfony/process": "~3.3|~4.0"
             },
             "suggest": {
-                "psr/log": "For using the console logger",
+                "psr/log-implementation": "For using the console logger",
                 "symfony/event-dispatcher": "",
                 "symfony/lock": "",
                 "symfony/process": ""
@@ -530,20 +535,20 @@
             ],
             "description": "Symfony Console Component",
             "homepage": "https://symfony.com",
-            "time": "2017-12-14T19:40:10+00:00"
+            "time": "2018-10-02T16:33:53+00:00"
         },
         {
             "name": "symfony/debug",
-            "version": "v3.4.2",
+            "version": "v3.4.17",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/debug.git",
-                "reference": "543deab3ffff94402440b326fc94153bae2dfa7a"
+                "reference": "0a612e9dfbd2ccce03eb174365f31ecdca930ff6"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/debug/zipball/543deab3ffff94402440b326fc94153bae2dfa7a",
-                "reference": "543deab3ffff94402440b326fc94153bae2dfa7a",
+                "url": "https://api.github.com/repos/symfony/debug/zipball/0a612e9dfbd2ccce03eb174365f31ecdca930ff6",
+                "reference": "0a612e9dfbd2ccce03eb174365f31ecdca930ff6",
                 "shasum": ""
             },
             "require": {
@@ -586,20 +591,20 @@
             ],
             "description": "Symfony Debug Component",
             "homepage": "https://symfony.com",
-            "time": "2017-12-12T08:27:14+00:00"
+            "time": "2018-10-02T16:33:53+00:00"
         },
         {
             "name": "symfony/event-dispatcher",
-            "version": "v3.4.2",
+            "version": "v3.4.17",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/event-dispatcher.git",
-                "reference": "b869cbf8a15ca6261689de2c28a7d7f2d0706835"
+                "reference": "b2e1f19280c09a42dc64c0b72b80fe44dd6e88fb"
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             "dist": {
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diff --git a/vendor-bin/phpunit/composer.lock b/vendor-bin/phpunit/composer.lock
index 26b133e..bf99b96 100644
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@@ -153,28 +153,28 @@
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@@ -367,16 +367,16 @@
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@@ -465,33 +465,33 @@
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@@ -524,20 +524,20 @@
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@@ -916,7 +916,7 @@
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@@ -965,21 +965,21 @@
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                 "url": "https://github.com/sebastianbergmann/comparator.git",
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@@ -1025,7 +1025,7 @@
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@@ -1519,16 +1519,16 @@
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                 "url": "https://github.com/webmozart/assert.git",
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@@ -1565,7 +1565,7 @@
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diff --git a/vendor-bin/robo/composer.lock b/vendor-bin/robo/composer.lock
index 3f95a03..7418050 100644
--- a/vendor-bin/robo/composer.lock
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@@ -8,16 +8,16 @@
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                 "url": "https://github.com/consolidation/annotated-command.git",
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@@ -29,8 +29,9 @@
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-                "satooshi/php-coveralls": "^1.0.2 | dev-master",
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@@ -55,20 +56,20 @@
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                 "url": "https://github.com/consolidation/config.git",
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@@ -109,20 +110,20 @@
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@@ -131,8 +132,9 @@
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@@ -157,33 +159,40 @@
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                 "url": "https://github.com/consolidation/output-formatters.git",
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@@ -206,27 +215,29 @@
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@@ -243,8 +254,10 @@
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@@ -283,7 +296,57 @@
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+            "version": "1.1.4",
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+                "url": "https://github.com/consolidation/self-update.git",
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+                "symfony/console": "^2.8|^3|^4",
+                "symfony/filesystem": "^2.5|^3|^4"
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+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
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+                    "email": "greg.1.anderson@greenknowe.org"
+                },
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+                    "email": "menk@mestrona.net"
+                }
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+            "description": "Provides a self:update command for Symfony Console applications.",
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@@ -375,6 +438,39 @@
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+            "type": "library",
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
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+                    "email": "greg.1.anderson@greenknowe.org"
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@@ -650,20 +746,20 @@
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@@ -690,7 +786,7 @@
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@@ -845,16 +941,16 @@
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@@ -875,7 +971,7 @@
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@@ -966,20 +1062,20 @@
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