Minecraft wiki entry for Development_versions, associated text: MC-29432 – Water and ice no longer transparent on fast graphics.
MC-29493 – Minecraft crash near 30 million blocks.
MC-29505 – Some plants not working properly with flowerpots.
MC-29530 – All the new flowers give only 1 of their respective dye whereas dandelions and 'roses' (now poppies) still give 2.
MC-29866 – Thorns enchantment backfires.
MC-30405 – Flint and steel sound and hand animation do not play when igniting a creeper.