Custom Metadata Types Support Long Text Areas (Generally Available)

Configuration data often runs longer than the 255-character text field limit. So in the last release, we piloted Long Text Area, a new field supported on custom metadata types. The pilot was a success, and the Long Text Area custom field type is now generally available. If you’ve been using workarounds to store longer strings, such as API keys, specialized markup, or SOQL queries, no more! Use Long Text Area fields instead.