diff --git a/.drone.yml b/.drone.yml
index bbdcbaa52..5f42a21a2 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -22,11 +22,11 @@ pipeline:
     when:
       matrix:
         TESTS: check-app-compatbility
-  check-app-compatbility-12:
+  check-app-compatbility-13:
     image: nextcloudci/php7.0:php7.0-17
     environment:
       - APP_NAME=deck
-      - CORE_BRANCH=stable12
+      - CORE_BRANCH=stable13
       - DB=sqlite
     commands:
       # Pre-setup steps
@@ -40,24 +40,6 @@ pipeline:
     when:
       matrix:
         TESTS: check-app-compatbility-13
-  check-app-compatbility-12:
-    image: nextcloudci/php7.0:php7.0-17
-    environment:
-      - APP_NAME=deck
-      - CORE_BRANCH=stable12
-      - DB=sqlite
-    commands:
-      # Pre-setup steps
-      - wget https://raw.githubusercontent.com/nextcloud/travis_ci/master/before_install.sh
-      - bash ./before_install.sh $APP_NAME $CORE_BRANCH $DB
-      - cd ../server
-      # Code checker
-      - ./occ app:check-code $APP_NAME -c strong-comparison
-      - ./occ app:check-code $APP_NAME -c deprecation
-      - cd apps/$APP_NAME/
-    when:
-      matrix:
-        TESTS: check-app-compatbility-12
   signed-off-check:
     image: nextcloudci/php7.0:php7.0-17
     environment:
@@ -230,7 +212,6 @@ pipeline:
 matrix:
   include:
     - TESTS: check-app-compatbility
-    - TESTS: check-app-compatbility-12
     - TESTS: check-app-compatbility-13
     - TESTS: signed-off-check
     - TESTS: syntax-php5.6
diff --git a/appinfo/info.xml b/appinfo/info.xml
index eb0bb642d..f2ff32e48 100644
--- a/appinfo/info.xml
+++ b/appinfo/info.xml
@@ -14,7 +14,7 @@
 - 🚀 Get your project organized
 
 </description>
-    <version>0.4.0</version>
+    <version>0.5.0-dev1</version>
     <licence>agpl</licence>
     <author>Julius Härtl</author>
     <namespace>Deck</namespace>
@@ -26,7 +26,7 @@
     <screenshot>https://download.bitgrid.net/nextcloud/deck/screenshots/Deck_Board.png</screenshot>
     <screenshot>https://download.bitgrid.net/nextcloud/deck/screenshots/Deck_Details.png</screenshot>
     <dependencies>
-        <nextcloud min-version="12" max-version="14" />
+        <nextcloud min-version="13" max-version="14" />
     </dependencies>
     <background-jobs>
         <job>OCA\Deck\Cron\DeleteCron</job>
diff --git a/js/package-lock.json b/js/package-lock.json
index 3c8c8369d..14b59d531 100644
--- a/js/package-lock.json
+++ b/js/package-lock.json
@@ -5,17 +5,17 @@
   "requires": true,
   "dependencies": {
     "@uirouter/angularjs": {
-      "version": "1.0.18",
-      "resolved": "https://registry.npmjs.org/@uirouter/angularjs/-/angularjs-1.0.18.tgz",
-      "integrity": "sha512-tswhwMMBDnbGOZnnCVpnA0pbd7dXkBck1HO0WY7fw8GO3dKbWAAc/rL0479dLypR89UDDGym5leTvZCLW4cJnA==",
+      "version": "1.0.19",
+      "resolved": "https://registry.npmjs.org/@uirouter/angularjs/-/angularjs-1.0.19.tgz",
+      "integrity": "sha512-O+M3CB4en9OPMKqSrMC6hZsuMbtttYpGlALZoqAYqUmqdw1CJ5WBnuj7s/40svhZG338SfqxXN/Y2uKh5x+gPQ==",
       "requires": {
-        "@uirouter/core": "5.0.19"
+        "@uirouter/core": "5.0.20"
       }
     },
     "@uirouter/core": {
-      "version": "5.0.19",
-      "resolved": "https://registry.npmjs.org/@uirouter/core/-/core-5.0.19.tgz",
-      "integrity": "sha512-wow+CKRThUAQkiTLNQCBsKQIU3NbH8GGH/w/TrcjKdvkZQA2jQB9QSqmmZxj7XNoZXY7QVcSSc4DWmxuSeAWmQ=="
+      "version": "5.0.20",
+      "resolved": "https://registry.npmjs.org/@uirouter/core/-/core-5.0.20.tgz",
+      "integrity": "sha512-7MwtORbMF0UFCgMb+KcBAx+7EsYn/6sP5mEAjLNQq14AkHOJom5pPRE0N3nxduFbK3V2TXfsOX2UjtbkuXql+A=="
     },
     "@webassemblyjs/ast": {
       "version": "1.5.13",
@@ -2728,9 +2728,9 @@
       }
     },
     "enhanced-resolve": {
-      "version": "4.0.0",
-      "resolved": "https://registry.npmjs.org/enhanced-resolve/-/enhanced-resolve-4.0.0.tgz",
-      "integrity": "sha512-jox/62b2GofV1qTUQTMPEJSDIGycS43evqYzD/KVtEb9OCoki9cnacUPxCrZa7JfPzZSYOCZhu9O9luaMxAX8g==",
+      "version": "4.1.0",
+      "resolved": "https://registry.npmjs.org/enhanced-resolve/-/enhanced-resolve-4.1.0.tgz",
+      "integrity": "sha512-F/7vkyTtyc/llOIn8oWclcB25KdRaiPBpZYDgJHgh/UHtpgT2p2eldQgtQnLtUvfMKPKxbRaQM/hHkvLHt1Vng==",
       "dev": true,
       "requires": {
         "graceful-fs": "^4.1.2",
@@ -2859,9 +2859,9 @@
       }
     },
     "eslint-scope": {
-      "version": "3.7.3",
-      "resolved": "https://registry.npmjs.org/eslint-scope/-/eslint-scope-3.7.3.tgz",
-      "integrity": "sha512-W+B0SvF4gamyCTmUc+uITPY0989iXVfKvhwtmJocTaYoc/3khEHmEmvfY/Gn9HA9VV75jrQECsHizkNw1b68FA==",
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/eslint-scope/-/eslint-scope-4.0.0.tgz",
+      "integrity": "sha512-1G6UTDi7Jc1ELFwnR58HV4fK9OQK4S6N985f166xqXxpjU6plxFISJa2Ba9KCQuFa8RCnj/lSFJbHo7UFDBnUA==",
       "dev": true,
       "requires": {
         "esrecurse": "^4.1.0",
@@ -3062,17 +3062,6 @@
         "chardet": "^0.5.0",
         "iconv-lite": "^0.4.22",
         "tmp": "^0.0.33"
-      },
-      "dependencies": {
-        "iconv-lite": {
-          "version": "0.4.23",
-          "resolved": "https://registry.npmjs.org/iconv-lite/-/iconv-lite-0.4.23.tgz",
-          "integrity": "sha512-neyTUVFtahjf0mB3dZT77u+8O0QB89jFdnBkd5P1JgYPbPaia3gXXOVL2fq8VyU2gMMD7SaN7QukTB/pmXYvDA==",
-          "dev": true,
-          "requires": {
-            "safer-buffer": ">= 2.1.2 < 3"
-          }
-        }
       }
     },
     "extglob": {
@@ -4093,9 +4082,9 @@
       }
     },
     "global-modules-path": {
-      "version": "2.1.0",
-      "resolved": "https://registry.npmjs.org/global-modules-path/-/global-modules-path-2.1.0.tgz",
-      "integrity": "sha512-3DrmGj2TP+96cABk9TfMp6f3knH/Y46dqvWznTU3Tf6/bDGLDAn15tFluQ7BcloykOcdY16U0WGq0BQblYOxJQ==",
+      "version": "2.3.0",
+      "resolved": "https://registry.npmjs.org/global-modules-path/-/global-modules-path-2.3.0.tgz",
+      "integrity": "sha512-HchvMJNYh9dGSCy8pOQ2O8u/hoXaL+0XhnrwH0RyLiSXMMTl9W3N6KUU73+JFOg5PGjtzl6VZzUQsnrpm7Szag==",
       "dev": true
     },
     "globals": {
@@ -4572,12 +4561,6 @@
             "supports-color": "^5.3.0"
           }
         },
-        "has-flag": {
-          "version": "3.0.0",
-          "resolved": "https://registry.npmjs.org/has-flag/-/has-flag-3.0.0.tgz",
-          "integrity": "sha1-tdRU3CGZriJWmfNGfloH87lVuv0=",
-          "dev": true
-        },
         "is-fullwidth-code-point": {
           "version": "2.0.0",
           "resolved": "https://registry.npmjs.org/is-fullwidth-code-point/-/is-fullwidth-code-point-2.0.0.tgz",
@@ -5438,9 +5421,9 @@
       }
     },
     "markdown-it": {
-      "version": "8.4.1",
-      "resolved": "https://registry.npmjs.org/markdown-it/-/markdown-it-8.4.1.tgz",
-      "integrity": "sha512-CzzqSSNkFRUf9vlWvhK1awpJreMRqdCrBvZ8DIoDWTOkESMIF741UPAhuAmbyWmdiFPA6WARNhnu2M6Nrhwa+A==",
+      "version": "8.4.2",
+      "resolved": "https://registry.npmjs.org/markdown-it/-/markdown-it-8.4.2.tgz",
+      "integrity": "sha512-GcRz3AWTqSUphY3vsUqQSFMbgR38a4Lh3GWlHRh/7MRwz8mcu9n2IO7HOh+bXHrR9kOPDl5RNCaEsrneb+xhHQ==",
       "requires": {
         "argparse": "^1.0.7",
         "entities": "~1.1.1",
@@ -7208,9 +7191,9 @@
       }
     },
     "rxjs": {
-      "version": "6.2.1",
-      "resolved": "https://registry.npmjs.org/rxjs/-/rxjs-6.2.1.tgz",
-      "integrity": "sha512-OwMxHxmnmHTUpgO+V7dZChf3Tixf4ih95cmXjzzadULziVl/FKhHScGLj4goEw9weePVOH2Q0+GcCBUhKCZc/g==",
+      "version": "6.2.2",
+      "resolved": "https://registry.npmjs.org/rxjs/-/rxjs-6.2.2.tgz",
+      "integrity": "sha512-0MI8+mkKAXZUF9vMrEoPnaoHkfzBPP4IGwUYRJhIRJF6/w3uByO1e91bEHn8zd43RdkTMKiooYKmwz7RH6zfOQ==",
       "dev": true,
       "requires": {
         "tslib": "^1.9.0"
@@ -8482,9 +8465,9 @@
       }
     },
     "webpack": {
-      "version": "4.16.0",
-      "resolved": "https://registry.npmjs.org/webpack/-/webpack-4.16.0.tgz",
-      "integrity": "sha512-oNx9djAd6uAcccyfqN3hyXLNMjZHiRySZmBQ4c8FNmf1SNJGhx7n9TSvHNyXxgToRdH65g/Q97s94Ip9N6F7xg==",
+      "version": "4.16.1",
+      "resolved": "https://registry.npmjs.org/webpack/-/webpack-4.16.1.tgz",
+      "integrity": "sha512-6jpzObU18y7lXDJz7XCLvzgrqcJ0rZ2jhKvnTivza9gM2GvPW93xxtmEll2GgmdC0zVQAtbHrH/9BtyMjSDZfA==",
       "dev": true,
       "requires": {
         "@webassemblyjs/ast": "1.5.13",
@@ -8498,7 +8481,7 @@
         "ajv-keywords": "^3.1.0",
         "chrome-trace-event": "^1.0.0",
         "enhanced-resolve": "^4.1.0",
-        "eslint-scope": "^3.7.1",
+        "eslint-scope": "^4.0.0",
         "json-parse-better-errors": "^1.0.2",
         "loader-runner": "^2.3.0",
         "loader-utils": "^1.1.0",
@@ -8528,9 +8511,9 @@
       }
     },
     "webpack-cli": {
-      "version": "3.0.8",
-      "resolved": "https://registry.npmjs.org/webpack-cli/-/webpack-cli-3.0.8.tgz",
-      "integrity": "sha512-KnRLJ0BUaYRqrhAMb9dv3gzdmhmgIMKo0FmdsnmfqbPGtLnnZ6tORZAvmmKfr+A0VgiVpqC60Gv7Ofg0R2CHtQ==",
+      "version": "3.1.0",
+      "resolved": "https://registry.npmjs.org/webpack-cli/-/webpack-cli-3.1.0.tgz",
+      "integrity": "sha512-p5NeKDtYwjZozUWq6kGNs9w+Gtw/CPvyuXjXn2HMdz8Tie+krjEg8oAtonvIyITZdvpF7XG9xDHwscLr2c+ugQ==",
       "dev": true,
       "requires": {
         "chalk": "^2.4.1",
@@ -8543,7 +8526,7 @@
         "loader-utils": "^1.1.0",
         "supports-color": "^5.4.0",
         "v8-compile-cache": "^2.0.0",
-        "yargs": "^11.1.0"
+        "yargs": "^12.0.1"
       },
       "dependencies": {
         "ansi-regex": {
@@ -8602,11 +8585,23 @@
             "which": "^1.2.9"
           }
         },
-        "has-flag": {
+        "decamelize": {
+          "version": "2.0.0",
+          "resolved": "https://registry.npmjs.org/decamelize/-/decamelize-2.0.0.tgz",
+          "integrity": "sha512-Ikpp5scV3MSYxY39ymh45ZLEecsTdv/Xj2CaQfI8RLMuwi7XvjX9H/fhraiSuU+C5w5NTDu4ZU72xNiZnurBPg==",
+          "dev": true,
+          "requires": {
+            "xregexp": "4.0.0"
+          }
+        },
+        "find-up": {
           "version": "3.0.0",
-          "resolved": "https://registry.npmjs.org/has-flag/-/has-flag-3.0.0.tgz",
-          "integrity": "sha1-tdRU3CGZriJWmfNGfloH87lVuv0=",
-          "dev": true
+          "resolved": "https://registry.npmjs.org/find-up/-/find-up-3.0.0.tgz",
+          "integrity": "sha512-1yD6RmLI1XBfxugvORwlck6f75tYL+iR0jqwsOrOxMZyGYqUuDhJ0l4AXdO1iX/FTs9cBAMEk1gWSEx1kSbylg==",
+          "dev": true,
+          "requires": {
+            "locate-path": "^3.0.0"
+          }
         },
         "is-fullwidth-code-point": {
           "version": "2.0.0",
@@ -8614,6 +8609,16 @@
           "integrity": "sha1-o7MKXE8ZkYMWeqq5O+764937ZU8=",
           "dev": true
         },
+        "locate-path": {
+          "version": "3.0.0",
+          "resolved": "https://registry.npmjs.org/locate-path/-/locate-path-3.0.0.tgz",
+          "integrity": "sha512-7AO748wWnIhNqAuaty2ZWHkQHRSNfPVIsPIfwEOWO22AmaoVrWavlOcMR5nzTLNYvp36X220/maaRsrec1G65A==",
+          "dev": true,
+          "requires": {
+            "p-locate": "^3.0.0",
+            "path-exists": "^3.0.0"
+          }
+        },
         "os-locale": {
           "version": "2.1.0",
           "resolved": "https://registry.npmjs.org/os-locale/-/os-locale-2.1.0.tgz",
@@ -8625,10 +8630,28 @@
             "mem": "^1.1.0"
           }
         },
-        "semver": {
-          "version": "5.5.0",
-          "resolved": "https://registry.npmjs.org/semver/-/semver-5.5.0.tgz",
-          "integrity": "sha512-4SJ3dm0WAwWy/NVeioZh5AntkdJoWKxHxcmyP622fOkgHa4z3R0TdBJICINyaSDE6uNwVc8gZr+ZinwZAH4xIA==",
+        "p-limit": {
+          "version": "2.0.0",
+          "resolved": "https://registry.npmjs.org/p-limit/-/p-limit-2.0.0.tgz",
+          "integrity": "sha512-fl5s52lI5ahKCernzzIyAP0QAZbGIovtVHGwpcu1Jr/EpzLVDI2myISHwGqK7m8uQFugVWSrbxH7XnhGtvEc+A==",
+          "dev": true,
+          "requires": {
+            "p-try": "^2.0.0"
+          }
+        },
+        "p-locate": {
+          "version": "3.0.0",
+          "resolved": "https://registry.npmjs.org/p-locate/-/p-locate-3.0.0.tgz",
+          "integrity": "sha512-x+12w/To+4GFfgJhBEpiDcLozRJGegY+Ei7/z0tSLkMmxGZNybVMSfWj9aJn8Z5Fc7dBUNJOOVgPv2H7IwulSQ==",
+          "dev": true,
+          "requires": {
+            "p-limit": "^2.0.0"
+          }
+        },
+        "p-try": {
+          "version": "2.0.0",
+          "resolved": "https://registry.npmjs.org/p-try/-/p-try-2.0.0.tgz",
+          "integrity": "sha512-hMp0onDKIajHfIkdRk3P4CdCmErkYAxxDtP3Wx/4nZ3aGlau2VKh3mZpcuFkH27WQkL/3WBCPOktzA9ZOAnMQQ==",
           "dev": true
         },
         "string-width": {
@@ -8665,15 +8688,21 @@
           "integrity": "sha1-2e8H3Od7mQK4o6j6SzHD4/fm6Ho=",
           "dev": true
         },
+        "xregexp": {
+          "version": "4.0.0",
+          "resolved": "https://registry.npmjs.org/xregexp/-/xregexp-4.0.0.tgz",
+          "integrity": "sha512-PHyM+sQouu7xspQQwELlGwwd05mXUFqwFYfqPO0cC7x4fxyHnnuetmQr6CjJiafIDoH4MogHb9dOoJzR/Y4rFg==",
+          "dev": true
+        },
         "yargs": {
-          "version": "11.1.0",
-          "resolved": "https://registry.npmjs.org/yargs/-/yargs-11.1.0.tgz",
-          "integrity": "sha512-NwW69J42EsCSanF8kyn5upxvjp5ds+t3+udGBeTbFnERA+lF541DDpMawzo4z6W/QrzNM18D+BPMiOBibnFV5A==",
+          "version": "12.0.1",
+          "resolved": "https://registry.npmjs.org/yargs/-/yargs-12.0.1.tgz",
+          "integrity": "sha512-B0vRAp1hRX4jgIOWFtjfNjd9OA9RWYZ6tqGA9/I/IrTMsxmKvtWy+ersM+jzpQqbC3YfLzeABPdeTgcJ9eu1qQ==",
           "dev": true,
           "requires": {
             "cliui": "^4.0.0",
-            "decamelize": "^1.1.1",
-            "find-up": "^2.1.0",
+            "decamelize": "^2.0.0",
+            "find-up": "^3.0.0",
             "get-caller-file": "^1.0.1",
             "os-locale": "^2.0.0",
             "require-directory": "^2.1.1",
@@ -8681,14 +8710,14 @@
             "set-blocking": "^2.0.0",
             "string-width": "^2.0.0",
             "which-module": "^2.0.0",
-            "y18n": "^3.2.1",
-            "yargs-parser": "^9.0.2"
+            "y18n": "^3.2.1 || ^4.0.0",
+            "yargs-parser": "^10.1.0"
           }
         },
         "yargs-parser": {
-          "version": "9.0.2",
-          "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-9.0.2.tgz",
-          "integrity": "sha1-nM9qQ0YP5O1Aqbto9I1DuKaMwHc=",
+          "version": "10.1.0",
+          "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-10.1.0.tgz",
+          "integrity": "sha512-VCIyR1wJoEBZUqk5PA+oOBF6ypbwh5aNB3I50guxAL/quggdfs4TtNHQrSazFA3fYZ+tEqfs0zIGlv0c/rgjbQ==",
           "dev": true,
           "requires": {
             "camelcase": "^4.1.0"
diff --git a/js/package.json b/js/package.json
index 5b3e3d490..51f5babba 100644
--- a/js/package.json
+++ b/js/package.json
@@ -8,14 +8,14 @@
     "test": "tests"
   },
   "dependencies": {
-    "@uirouter/angularjs": "^1.0.18",
+    "@uirouter/angularjs": "^1.0.19",
     "angular": "^1.7.2",
     "angular-animate": "^1.7.2",
     "angular-file-upload": "^2.5.0",
     "angular-markdown-it": "^0.6.1",
     "angular-sanitize": "^1.7.2",
     "babel-polyfill": "^6.26.0",
-    "markdown-it": "^8.4.1",
+    "markdown-it": "^8.4.2",
     "markdown-it-link-target": "^1.0.2",
     "ng-sortable": "^1.3.8",
     "ui-select": "^0.19.8"
@@ -28,8 +28,8 @@
     "karma": "^2.0.4",
     "mini-css-extract-plugin": "^0.4.1",
     "node-sass": "^4.9.2",
-    "webpack": "^4.16.0",
-    "webpack-cli": "^3.0.8",
+    "webpack": "^4.16.1",
+    "webpack-cli": "^3.1.0",
     "webpack-merge": "^4.1.3"
   },
   "scripts": {
diff --git a/l10n/cs.js b/l10n/cs.js
index 299b1a4df..fe21b3356 100644
--- a/l10n/cs.js
+++ b/l10n/cs.js
@@ -12,21 +12,29 @@ OC.L10N.register(
     "The card \"%s\" on \"%s\" has reached its due date." : "U karty \"%s\" z tabule \"%s\" nastalo plánované datum dokončení.",
     "The board \"%s\" has been shared with you by %s." : "Tabule \"%s\" s vámi byla nasdílena uživatelem %s.",
     "{user} has shared the board %s with you." : "{user} s vámi nasdílel tabuli %s.",
+    "No data was provided to create an attachment." : "Žádná data k vytvoření přílohy.",
     "Finished" : "Dokončeno",
     "To review" : "K revizi",
     "Action needed" : "Nutná akce",
     "Later" : "Později",
+    "To do" : "Udělat",
+    "Doing" : "Provádím",
     "Done" : "Hotovo",
     "Example Task 3" : "Třetí úkol pro ukázku",
     "Example Task 2" : "Druhý úkol pro ukázku",
     "Example Task 1" : "První úkol pro ukázku",
     "The file was uploaded" : "Soubor byl nahrán",
+    "The uploaded file exceeds the upload_max_filesize directive in php.ini" : "Nahrávaný soubor přesahuje nastavení upload_max_filesize v php.ini",
+    "The uploaded file exceeds the MAX_FILE_SIZE directive that was specified in the HTML form" : "Odeslaný soubor přesáhl svou velikostí parametr MAX_FILE_SIZE specifikovaný ve formuláři HTML",
     "The file was only partially uploaded" : "Soubor byl nahrán pouze z části",
     "No file was uploaded" : "Nebyl nahrán žádný soubor",
     "Missing a temporary folder" : "Chybí adresář pro dočasné soubory",
     "Could not write file to disk" : "Nedaří se zapsat soubor do úložiště",
     "A PHP extension stopped the file upload" : "Rozšíření PHP zastavilo nahrávání souboru.",
+    "No file uploaded or file size exceeds maximum of %s" : "Soubor nebyl nahrán nebo jeho velikost přesáhla %s",
     "Deck" : "Balík",
+    "A kanban style project and personal management tool for Nextcloud" : "Nástroj pro projektový a osobní management ve stylu Kanban.",
+    "Deck is a kanban style organization tool aimed at personal planning and project organization for teams integrated with Nextcloud.\n\n\n- 📥 Add your tasks to cards and put them in order\n- 📄 Write down additional notes in markdown\n- 🔖 Assign labels for even better organization\n- 👥 Share with your team, friends or family\n- 🚀 Get your project organized" : "Karty jsou nástroj zacílený na osobní nebo projektové plánování týmů v Kanban stylu, jenž je zaintegrovaný do Nextcloudu.\n\n\n- 📥 Vložte a uspořádejte své úkoly do karet\n- 📄 Zapište si dodatečné poznámky \n- 🔖 Přilepte štítek pro ještě lepší organizaci\n- 👥 Sdílejte se svým týmem, přátely nebo rodinou\n- 🚀 Dostaťe svůj projekt pod kontrolu",
     "Add a new stack" : "Přidat nový zásobník",
     "Submit" : "Odeslat",
     "Show archived cards" : "Zobrazit archivované karty",
@@ -34,6 +42,7 @@ OC.L10N.register(
     "Board details" : "Detaily desky",
     "All Boards" : "Všechny desky",
     "Archived boards" : "Archivované desky",
+    "Drop your files here to upload it to the card" : "Přetáhněte soubor sem, pokud jej chcete připojit ke kartě.",
     "Archive" : "Archiv",
     "Unarchive" : "Zrušit archivování",
     "Enter a card title" : "Zadejte nadpis karty",
@@ -62,12 +71,14 @@ OC.L10N.register(
     "Delete board" : "Smazat desku",
     "Reset" : "Obnovit",
     "Undo board deletion - Otherwise the board will be deleted during the next cronjob run." : "Vrátit smazání tabule - Tabule bude jinak trvale odstraněna během příštího běhu cronjobu.",
-    "Create new board" : "VYtvořit ovou desku",
+    "Create new board" : "Vytvořit novou desku",
     "New board title" : "Nadpis nové desky",
     "Select an attachment" : "Vybrat přílohu",
     "Cancel upload" : "Zrušit nahrávání",
     "by" : "od",
+    "Undo file deletion - Otherwise the file will be deleted during the next cronjob run." : "Vrátit smazání souboru - v opačném případě bude soubor trvale smazán při dalším běhu cronjobu.",
     "Undo file deletion" : "Vzít zpět smazání souboru",
+    "Insert the file into the description" : "Vložte soubor do popisku.",
     "Modified:" : "Upraveno:",
     "Created:" : "Vytvořeno:",
     "Choose a tag" : "Vyberte štítek",
diff --git a/l10n/cs.json b/l10n/cs.json
index 57a657233..917e9b800 100644
--- a/l10n/cs.json
+++ b/l10n/cs.json
@@ -10,21 +10,29 @@
     "The card \"%s\" on \"%s\" has reached its due date." : "U karty \"%s\" z tabule \"%s\" nastalo plánované datum dokončení.",
     "The board \"%s\" has been shared with you by %s." : "Tabule \"%s\" s vámi byla nasdílena uživatelem %s.",
     "{user} has shared the board %s with you." : "{user} s vámi nasdílel tabuli %s.",
+    "No data was provided to create an attachment." : "Žádná data k vytvoření přílohy.",
     "Finished" : "Dokončeno",
     "To review" : "K revizi",
     "Action needed" : "Nutná akce",
     "Later" : "Později",
+    "To do" : "Udělat",
+    "Doing" : "Provádím",
     "Done" : "Hotovo",
     "Example Task 3" : "Třetí úkol pro ukázku",
     "Example Task 2" : "Druhý úkol pro ukázku",
     "Example Task 1" : "První úkol pro ukázku",
     "The file was uploaded" : "Soubor byl nahrán",
+    "The uploaded file exceeds the upload_max_filesize directive in php.ini" : "Nahrávaný soubor přesahuje nastavení upload_max_filesize v php.ini",
+    "The uploaded file exceeds the MAX_FILE_SIZE directive that was specified in the HTML form" : "Odeslaný soubor přesáhl svou velikostí parametr MAX_FILE_SIZE specifikovaný ve formuláři HTML",
     "The file was only partially uploaded" : "Soubor byl nahrán pouze z části",
     "No file was uploaded" : "Nebyl nahrán žádný soubor",
     "Missing a temporary folder" : "Chybí adresář pro dočasné soubory",
     "Could not write file to disk" : "Nedaří se zapsat soubor do úložiště",
     "A PHP extension stopped the file upload" : "Rozšíření PHP zastavilo nahrávání souboru.",
+    "No file uploaded or file size exceeds maximum of %s" : "Soubor nebyl nahrán nebo jeho velikost přesáhla %s",
     "Deck" : "Balík",
+    "A kanban style project and personal management tool for Nextcloud" : "Nástroj pro projektový a osobní management ve stylu Kanban.",
+    "Deck is a kanban style organization tool aimed at personal planning and project organization for teams integrated with Nextcloud.\n\n\n- 📥 Add your tasks to cards and put them in order\n- 📄 Write down additional notes in markdown\n- 🔖 Assign labels for even better organization\n- 👥 Share with your team, friends or family\n- 🚀 Get your project organized" : "Karty jsou nástroj zacílený na osobní nebo projektové plánování týmů v Kanban stylu, jenž je zaintegrovaný do Nextcloudu.\n\n\n- 📥 Vložte a uspořádejte své úkoly do karet\n- 📄 Zapište si dodatečné poznámky \n- 🔖 Přilepte štítek pro ještě lepší organizaci\n- 👥 Sdílejte se svým týmem, přátely nebo rodinou\n- 🚀 Dostaťe svůj projekt pod kontrolu",
     "Add a new stack" : "Přidat nový zásobník",
     "Submit" : "Odeslat",
     "Show archived cards" : "Zobrazit archivované karty",
@@ -32,6 +40,7 @@
     "Board details" : "Detaily desky",
     "All Boards" : "Všechny desky",
     "Archived boards" : "Archivované desky",
+    "Drop your files here to upload it to the card" : "Přetáhněte soubor sem, pokud jej chcete připojit ke kartě.",
     "Archive" : "Archiv",
     "Unarchive" : "Zrušit archivování",
     "Enter a card title" : "Zadejte nadpis karty",
@@ -60,12 +69,14 @@
     "Delete board" : "Smazat desku",
     "Reset" : "Obnovit",
     "Undo board deletion - Otherwise the board will be deleted during the next cronjob run." : "Vrátit smazání tabule - Tabule bude jinak trvale odstraněna během příštího běhu cronjobu.",
-    "Create new board" : "VYtvořit ovou desku",
+    "Create new board" : "Vytvořit novou desku",
     "New board title" : "Nadpis nové desky",
     "Select an attachment" : "Vybrat přílohu",
     "Cancel upload" : "Zrušit nahrávání",
     "by" : "od",
+    "Undo file deletion - Otherwise the file will be deleted during the next cronjob run." : "Vrátit smazání souboru - v opačném případě bude soubor trvale smazán při dalším běhu cronjobu.",
     "Undo file deletion" : "Vzít zpět smazání souboru",
+    "Insert the file into the description" : "Vložte soubor do popisku.",
     "Modified:" : "Upraveno:",
     "Created:" : "Vytvořeno:",
     "Choose a tag" : "Vyberte štítek",
diff --git a/l10n/fr.js b/l10n/fr.js
index 55b7b8065..04caa6e90 100644
--- a/l10n/fr.js
+++ b/l10n/fr.js
@@ -18,6 +18,11 @@ OC.L10N.register(
     "Action needed" : "Action requise",
     "Later" : "Plus tard",
     "To do" : "À faire",
+    "Doing" : "En cours",
+    "Done" : "Terminé",
+    "Example Task 3" : "Exemple de tâche 3",
+    "Example Task 2" : "Exemple de tâche 2",
+    "Example Task 1" : "Exemple de tâche 1",
     "The file was uploaded" : "Le fichier a été téléchargé",
     "The uploaded file exceeds the upload_max_filesize directive in php.ini" : "Le fichier téléversé dépasse la valeur upload_max_filesize située dans le fichier php.ini",
     "The uploaded file exceeds the MAX_FILE_SIZE directive that was specified in the HTML form" : "Le fichier envoyé dépasse la valeur MAX_FILE_SIZE qui était spécifiée dans le formulaire HTML",
diff --git a/l10n/fr.json b/l10n/fr.json
index e6a5adb40..e3d056cf2 100644
--- a/l10n/fr.json
+++ b/l10n/fr.json
@@ -16,6 +16,11 @@
     "Action needed" : "Action requise",
     "Later" : "Plus tard",
     "To do" : "À faire",
+    "Doing" : "En cours",
+    "Done" : "Terminé",
+    "Example Task 3" : "Exemple de tâche 3",
+    "Example Task 2" : "Exemple de tâche 2",
+    "Example Task 1" : "Exemple de tâche 1",
     "The file was uploaded" : "Le fichier a été téléchargé",
     "The uploaded file exceeds the upload_max_filesize directive in php.ini" : "Le fichier téléversé dépasse la valeur upload_max_filesize située dans le fichier php.ini",
     "The uploaded file exceeds the MAX_FILE_SIZE directive that was specified in the HTML form" : "Le fichier envoyé dépasse la valeur MAX_FILE_SIZE qui était spécifiée dans le formulaire HTML",
diff --git a/lib/AppInfo/Application.php b/lib/AppInfo/Application.php
index aac44b52d..528c1e416 100644
--- a/lib/AppInfo/Application.php
+++ b/lib/AppInfo/Application.php
@@ -61,6 +61,10 @@ class Application extends App {
 			return $container->getServer()->getConfig()->getSystemValue('dbtype', 'sqlite');
 		});
 
+		$container->registerService('database4ByteSupport', function($container) {
+			return $container->getServer()->getDatabaseConnection()->supports4ByteText();
+		});
+
 		// Delete user/group acl entries when they get deleted
 		/** @var IUserManager $userManager */
 		$userManager = $server->getUserManager();
diff --git a/lib/Db/CardMapper.php b/lib/Db/CardMapper.php
index 7c5e78462..e0234fc43 100644
--- a/lib/Db/CardMapper.php
+++ b/lib/Db/CardMapper.php
@@ -38,29 +38,40 @@ class CardMapper extends DeckMapper implements IPermissionMapper {
 	/** @var IManager */
 	private $notificationManager;
 	private $databaseType;
+	private $database4ByteSupport;
 
 	public function __construct(
 		IDBConnection $db,
 		LabelMapper $labelMapper,
 		IUserManager $userManager,
 		IManager $notificationManager,
-		$databaseType = 'sqlite'
+		$databaseType = 'sqlite',
+		$database4ByteSupport = true
 	) {
 		parent::__construct($db, 'deck_cards', Card::class);
 		$this->labelMapper = $labelMapper;
 		$this->userManager = $userManager;
 		$this->notificationManager = $notificationManager;
 		$this->databaseType = $databaseType;
+		$this->database4ByteSupport = $database4ByteSupport;
 	}
 
 	public function insert(Entity $entity) {
 		$entity->setDatabaseType($this->databaseType);
 		$entity->setCreatedAt(time());
 		$entity->setLastModified(time());
+		if (!$this->database4ByteSupport) {
+			$description = preg_replace('/[\x{10000}-\x{10FFFF}]/u', "\xEF\xBF\xBD", $entity->getDescription());
+			$entity->setDescription($description);
+		}
 		return parent::insert($entity);
 	}
 
 	public function update(Entity $entity, $updateModified = true) {
+		if (!$this->database4ByteSupport) {
+			$description = preg_replace('/[\x{10000}-\x{10FFFF}]/u', "\xEF\xBF\xBD", $entity->getDescription());
+			$entity->setDescription($description);
+		}
 		$entity->setDatabaseType($this->databaseType);
 
 		if ($updateModified) {
diff --git a/lib/Service/CardService.php b/lib/Service/CardService.php
index f76ce220e..26fa3753c 100644
--- a/lib/Service/CardService.php
+++ b/lib/Service/CardService.php
@@ -195,6 +195,7 @@ class CardService {
 	}
 
 	public function assignUser($cardId, $userId) {
+		$this->permissionService->checkPermission($this->cardMapper, $cardId, Acl::PERMISSION_EDIT);
 		$assignments = $this->assignedUsersMapper->find($cardId);
 		foreach ($assignments as $assignment) {
 			if ($assignment->getParticipant() === $userId) {
@@ -208,6 +209,7 @@ class CardService {
 	}
 
 	public function unassignUser($cardId, $userId) {
+		$this->permissionService->checkPermission($this->cardMapper, $cardId, Acl::PERMISSION_EDIT);
 		$assignments = $this->assignedUsersMapper->find($cardId);
 		foreach ($assignments as $assignment) {
 			if ($assignment->getParticipant() === $userId) {