Error Data too long for column 'before' at row 1

Hi, I've got this error (conn=14121) Data too long for column 'before' at row 1 when want to save Collection Permissions

Any Idea what causes this? Thanks

and this is my Diagnostic Info

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"vendor": "Google Inc."
"system-info": {
"file.encoding": "UTF-8",
"": "OpenJDK Runtime Environment",
"java.runtime.version": "11.0.7+10",
"java.vendor": "AdoptOpenJDK",
"java.vendor.url": "",
"java.version": "11.0.7",
"": "OpenJDK 64-Bit Server VM",
"java.vm.version": "11.0.7+10",
"": "Linux",
"os.version": "5.4.0-1030-aws",
"user.language": "en",
"user.timezone": "GMT"
"metabase-info": {
"databases": [
"hosting-env": "unknown",
"application-database": "mysql",
"application-database-details": {
"database": {
"name": "MySQL",
"version": "8.0.23"
"jdbc-driver": {
"name": "MariaDB Connector/J",
"version": "2.6.2"
"run-mode": "prod",
"version": {
"date": "2020-10-26",
"tag": "v0.37.0.2",
"branch": "release-x.37.x",
"hash": "ba7be09"
"settings": {
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Hi @luf
That was just fixed yesterday and will be available in 0.42.0.
You need to update the application database columns with the type TEXT to LONGTEXT.
Specifically collection_revision.before for this error (that table is called collection_permission_graph_revision from 0.39)
Latest release is 0.41.1: