12.8. Release 0.228

• Reduce excessive memory usage by ExchangeClient.
• Improve coordinator stability on parsing functions that may create large constantarrays/maps/rows (e.g., , REPEAT, , etc) by delaying theevaluation on these functions on workers.
• Allow Bing Tiles at zoom level 0.

• Fix ORC writer rollback failure due to exception thrown during rollback.

• Move most utilities to the presto-expressions module.