# Which Problems Are Solved
In versions previous to v2.66 it was possible to set a different
resource owner on project grants. This was introduced with the new
resource based API. The resource owner was possible to overwrite using
the x-zitadel-org header.
Because of this issue project grants got the wrong resource owner,
instead of the owner of the project it got the granted org which is
wrong because a resource owner of an aggregate is not allowed to change.
# How the Problems Are Solved
- The wrong owners of the events are set to the original owner of the
project.
- A new event is pushed to these aggregates `project.owner.corrected`
- The projection updates the owners of the user grants if that event was
written
# Additional Changes
The eventstore push function (replaced in version 2.66) writes the
correct resource owner.
# Additional Context
closes https://github.com/zitadel/zitadel/issues/9072
# Which Problems Are Solved
On Zitadel cloud we found changing the order of columns in the
`eventstore.events2_current_sequence` index improved CPU usage for the
`SELECT ... FOR UPDATE` query the pusher executes.
# How the Problems Are Solved
`eventstore.events2_current_sequence`-index got replaced
# Additional Context
closes https://github.com/zitadel/zitadel/issues/9082
# Which Problems Are Solved
get instance by domain cannot provide an instance id because it is not
known at that time. This causes a full table scan on the fields table
because current indexes always include the `instance_id` column.
# How the Problems Are Solved
Added a specific index for this query.
# Additional Context
If a system has many fields and there is no cache hit for the given
domain this query can heaviuly influence database CPU usage, the newly
added resolves this problem.
# Which Problems Are Solved
setup step 41 cannot handle downgrades at the moment. This step writes
the instance domain to the fields table. If there are new instances
created during the downgraded version is running there would be domain
missing in the fields afterwards.
# How the Problems Are Solved
Make step 41 repeatable for each version
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