Since the release of update 1.6 for Stardew Valley, ConcernedApe has been a busy beaver, releasing five patches for the update over the last month or so, the most recent being 1.6.6.
While 1.6.2 and 1.6.3 mainly focused on fixes and QoL updates, the developer recently released patch 1.6.4, which added fish frenzies, a new cutscene, and four new fairy styles. It also features 40 mine layouts, 20 “alternatives” after reaching the bottom of the mine, and 20 new volcano layouts that appear once you have unlocked the shortcut between the caldera and the volcano entrance.
With the patch, you can now place eight additional non-fish items into fish tanks, the Raccoon Shop now includes a trade for mystery boxes and golden mystery boxes, vinegar can now be poured onto trees to stop them from ever-growing moss, and shaving enchantment will now cause tree-specific drops.