These notifications are for the tenant devs, so they don't need as much technical details under What is happening. They don't care about case numbers and such. That's better detail for the CHG which is sent to the customer.
Maybe something like?
This change fixes some connection leaking we are seeing in Kibana and ElasticSearch. This should improve the timeouts and 504s people are seeing in Kibana.
These notifications are for the tenant devs, so they don't need as much technical details under What is happening. They don't care about case numbers and such. That's better detail for the CHG which is sent to the customer.
Maybe something like?