UpsertMulti expiry

Hello everyone,
I’m trying to do a upsertMulti with expiry but the data is set without expiration timestamp on couchbase. No errors are throw/showing. Any ideas?

Here is an example

    $options = new UpsertOptions();
    $options->expiry(60);
    $this->collection->upsertMulti([['key0', 'dummy']], $options);

I’m using couchbase PHP SDK version 4.2.3

There is an open ticket Issue navigator - Couchbase Cloud

Thank you, looking forward for updates. Any release date for this?