diff --git a/app/blueprints/api/endpoints.py b/app/blueprints/api/endpoints.py
index bfee815..d71b7e0 100644
--- a/app/blueprints/api/endpoints.py
+++ b/app/blueprints/api/endpoints.py
@@ -20,7 +20,7 @@ from sqlalchemy.sql.expression import func
 
 from app import csrf
 from app.utils.markdown import render_markdown
-from app.models import Tag, PackageState, PackageType, Package, db, PackageRelease, Permission, ForumTopic, MinetestRelease, APIToken, PackageScreenshot, License
+from app.models import Tag, PackageState, PackageType, Package, db, PackageRelease, Permission, ForumTopic, MinetestRelease, APIToken, PackageScreenshot, License, ContentWarning
 from app.querybuilder import QueryBuilder
 from app.utils import is_package_page
 from . import bp
@@ -317,6 +317,11 @@ def tags():
 	return jsonify([tag.getAsDictionary() for tag in Tag.query.all() ])
 
 
+@bp.route("/api/content_warnings/")
+def content_warnings():
+	return jsonify([warning.getAsDictionary() for warning in ContentWarning.query.all() ])
+
+
 @bp.route("/api/licenses/")
 def licenses():
 	return jsonify([ { "name": license.name, "is_foss": license.is_foss } \
diff --git a/app/flatpages/help/api.md b/app/flatpages/help/api.md
index 962c2ed..0d9022c 100644
--- a/app/flatpages/help/api.md
+++ b/app/flatpages/help/api.md
@@ -63,7 +63,7 @@ Examples:
 # Edit packages
 curl -X PUT http://localhost:5123/api/packages/username/name/ \
     -H "Authorization: Bearer YOURTOKEN" -H "Content-Type: application/json" \
-    -d '{ "title": "Foo bar", "tags": ["pvp", "survival"], "license": "wtfpl" }'
+    -d '{ "title": "Foo bar", "tags": ["pvp", "survival"], "license": "WTFPL" }'
     
 # Remove website URL
 curl -X PUT http://localhost:5123/api/packages/username/name/ \
diff --git a/app/flatpages/help/package_config.md b/app/flatpages/help/package_config.md
index c518e89..97d269f 100644
--- a/app/flatpages/help/package_config.md
+++ b/app/flatpages/help/package_config.md
@@ -38,6 +38,40 @@ and for mods only:
 
 * `name` - the mod technical name.
 
+
+## .cdb.json
+
+You can include a `.cdb.json` file in the root of your content directory (ie: next to a .conf)
+to update the package meta.
+
+It should be a JSON dictionary with one or more of the following optional keys.
+
+* `type`: One of `GAME`, `MOD`, `TXP`.
+* `title`: Human-readable title.
+* `name`: Technical name (needs permission if already approved).
+* `short_description`
+* `tags`: List of tag names, see [/api/tags/](/api/tags/).
+* `content_Warnings`: List of content warning names, see [/api/content_warnings/](/api/content_warnings/).
+* `license`: A license name, see [/api/licenses/](/api/licenses/).
+* `media_license`: A license name.          
+* `desc`: Long markdown description.
+* `repo`: Git repo URL.
+* `website`: Website URL.
+* `issue_tracker`: Issue tracker URL.
+* `forums`: forum topic ID.
+
+Use `null` to unset fields where relevant.
+
+Example:
+
+```json
+{
+    "title": "Foo bar",
+    "tags": ["pvp", "survival"],
+    "license": "WTFPL"
+}
+```
+
 ## Controlling Release Creation
 
 ### Git-based Releases and Submodules
diff --git a/app/logic/packages.py b/app/logic/packages.py
index c00f290..cf7bd70 100644
--- a/app/logic/packages.py
+++ b/app/logic/packages.py
@@ -15,11 +15,12 @@
 # along with this program.  If not, see <https://www.gnu.org/licenses/>.
 
 
-import re, validators
+import re
+import validators
 
 from app.logic.LogicError import LogicError
-from app.models import User, Package, PackageType, MetaPackage, Tag, ContentWarning, db, Permission, NotificationType, AuditSeverity, License
-from app.utils import addNotification, addAuditLog
+from app.models import User, Package, PackageType, MetaPackage, Tag, ContentWarning, db, Permission, AuditSeverity, License
+from app.utils import addAuditLog
 
 
 def check(cond: bool, msg: str):
@@ -152,9 +153,6 @@ def do_edit_package(user: User, package: Package, was_new: bool, data: dict, rea
 		else:
 			msg = "Edited {} ({})".format(package.title, reason)
 
-		addNotification(package.maintainers, user, NotificationType.PACKAGE_EDIT,
-				msg, package.getDetailsURL(), package)
-
 		severity = AuditSeverity.NORMAL if user in package.maintainers else AuditSeverity.EDITOR
 		addAuditLog(severity, user, msg, package.getDetailsURL(), package)
 
diff --git a/app/models/packages.py b/app/models/packages.py
index 9e743a7..499757d 100644
--- a/app/models/packages.py
+++ b/app/models/packages.py
@@ -727,6 +727,10 @@ class ContentWarning(db.Model):
 		regex = re.compile("[^a-z_]")
 		self.name = regex.sub("", self.title.lower().replace(" ", "_"))
 
+	def getAsDictionary(self):
+		description = self.description if self.description != "" else None
+		return { "name": self.name, "title": self.title, "description": description }
+
 
 class Tag(db.Model):
 	id              = db.Column(db.Integer, primary_key=True)
diff --git a/app/tasks/importtasks.py b/app/tasks/importtasks.py
index aeee25e..86a70a9 100644
--- a/app/tasks/importtasks.py
+++ b/app/tasks/importtasks.py
@@ -13,8 +13,7 @@
 #
 # You should have received a copy of the GNU Affero General Public License
 # along with this program.  If not, see <https://www.gnu.org/licenses/>.
-
-
+import json
 import os, shutil, gitdb
 from zipfile import ZipFile
 from git import GitCommandError
@@ -23,9 +22,11 @@ from kombu import uuid
 
 from app.models import *
 from app.tasks import celery, TaskError
-from app.utils import randomString, post_bot_message, addSystemNotification, addSystemAuditLog
+from app.utils import randomString, post_bot_message, addSystemNotification, addSystemAuditLog, get_system_user
 from app.utils.git import clone_repo, get_latest_tag, get_latest_commit, get_temp_dir
 from .minetestcheck import build_tree, MinetestCheckError, ContentType
+from ..logic.LogicError import LogicError
+from ..logic.packages import do_edit_package
 
 
 @celery.task()
@@ -90,13 +91,21 @@ def postReleaseCheckUpdate(self, release, path):
 			db.session.add(Dependency(package, meta=meta, optional=True))
 
 		# Update min/max
-
 		if tree.meta.get("min_minetest_version"):
 			release.min_rel = MinetestRelease.get(tree.meta["min_minetest_version"], None)
 
 		if tree.meta.get("max_minetest_version"):
 			release.max_rel = MinetestRelease.get(tree.meta["max_minetest_version"], None)
 
+		try:
+			with open(os.path.join(tree.baseDir, ".cdb.json"), "r") as f:
+				data = json.loads(f.read())
+				do_edit_package(package.author, package, False, data, "Post release hook")
+		except LogicError as e:
+			raise TaskError(e.message)
+		except IOError:
+			pass
+
 		return tree
 
 	except MinetestCheckError as err:
diff --git a/app/utils/models.py b/app/utils/models.py
index 8fb07b9..d11f359 100644
--- a/app/utils/models.py
+++ b/app/utils/models.py
@@ -85,23 +85,23 @@ def clearNotifications(url):
 		Notification.query.filter_by(user=current_user, url=url).delete()
 		db.session.commit()
 
-def addSystemNotification(target, type: NotificationType, title: str, url: str, package: Package = None):
+
+def get_system_user():
 	system_user = User.query.filter_by(username="ContentDB").first()
 	assert system_user
+	return system_user
 
-	return addNotification(target, system_user, type, title, url, package)
+
+def addSystemNotification(target, type: NotificationType, title: str, url: str, package: Package = None):
+	return addNotification(target, get_system_user(), type, title, url, package)
 
 
 def addSystemAuditLog(severity: AuditSeverity, title: str, url: str, package=None, description=None):
-	system_user = User.query.filter_by(username="ContentDB").first()
-	assert system_user
-
-	return addAuditLog(severity, system_user, title, url, package, description)
+	return addAuditLog(severity, get_system_user(), title, url, package, description)
 
 
 def post_bot_message(package: Package, title: str, message: str):
-	system_user = User.query.filter_by(username="ContentDB").first()
-	assert system_user
+	system_user = get_system_user()
 
 	thread = package.threads.filter_by(author=system_user).first()
 	if not thread: