For all Hypernodes with the first letter M-Z we’ve stopped HHVM unless it was used.
The remaining Hypernodes (A-L) will also receive this feature in due time.

HHVM is deprecated in favor for PHP7. In order to save memory we’ve stopped HHVM on
all nodes which were not using it to reclaim memory. New Hypernodes have already
been delivered without hhvm and we’re in the process now of stopping HHVM for all
Hypernodes which do not use it.

Should you want/require HHVM, even though it is deprecated, contact our support.