Civilization VI Winter 2016 Update

The Winter 2016 Update for Civilization VI was released on December 20, 2016. The update was released simultaneously with the following DLCs:
* Poland Civilization & Scenario Pack
* Vikings Scenario Pack
The following is a complete list of change notes.
==New==
* Added Earth map (Standard size).
* Added “Alert” action for units.
* Put a unit to sleep until they spot an enemy unit.
* Scenario setup menu.
** Jump into Scenarios more easily within the Single Player menu. This only shows up when a single player scenario is available and enabled (as can be found in both of the new DLCs!)
* Added new replay option to Wonder completion movies.
==Gameplay updates==
* Religious units may now Fortify Until Healed.
* Coastal Raids can now pillage districts in addition to the buildings within.
* Great Admirals are no longer allowed to spawn on wonders in water tiles (ex. Huey, Great Lighthouse) so they cannot become stranded in lakes.
==Balance changes==
* Cities can no longer receive yields from more than one regional building per type; they take the highest (ex. production from multiple Factories).
* Cities can no longer receive amenities from more than one regional building per type; they take the highest (ex. amenities from multiple Stadiums).
* Decreased production costs of Wonders progressively.
** From the Industrial era (about -10%) to the Atomic era (about -40%).
* Decreased production costs of all Space Race Projects by 40%.
* Increased research costs of Technologies and Civics progressively.
** From the Industrial era (about +5%) to the Information era (about +20%).
* Increased Faith from Mission.
* Increased Culture from Chateau.
* Lowered the minimum unit upgrade cost.
* Improved clarity on Warmongering penalties associated with taking a civ's final city.
* Most Civilization unique districts now require population to construct (like normal districts).
* Spaceport district no longer requires population to construct.
==AI tuning==
* Improved AI Deal negotiations and analysis.
* Improved AI handling of Promises; including that they are more likely to agree if they like you, and also will consider how trustworthy a civ is by whether they've kept previous promises.
* Improved tactical handling of Great Admirals and Great Generals.
* Improved AI interest in Terracotta Army.
* Improved handling of leaf techs.
* Improved building of Forts.
* Improved resource grabbing in late game.
* Improved Last Viking King agenda's analysis for who is in bottom percentage of navies.
* Improved handling of several complaint or kudo messages from AI.
* Rebalanced Catherine's evaluation of the ‘no spying’ Promise.
* AI will not try to convert unconvertible cities.
==Bug fixes==
* Fixed several unique buildings that weren't getting their yields increased by various game effects (ex. Policies).
* Fixed an issue that allowed the Goddess of the Harvest pantheon bonus to stack.
* Fixed it so loading screens now show the correct text and play matching VO.
* Fixed an issue that blocked certain relationship-based diplomatic actions.
* Fixed an issue where incomplete Encampment districts were able to attack.
* Fixed an issue where you could declare war on friends or allies by moving units.
* Fixed an issue where AI could declare war on a civ with whom they were already at war.
* Fixed an issue that caused a Multiplayer lobby to require joining players to have Additional Content that wasn't actually needed.
* Fixed a bug that caused Apostles to run out of promotions.
* Fixed a bug where gaining policy slots mid-turn could block progression.
* Fixed issues caused by trading lots of Great Works at the same time.
* Fixed an issue where turn timers weren't loading correctly from a save.
* Fixed an issue where Rome's roads would connect to too many adjacent roads.
* Fixed issue where civs could get another civ's exclusive agenda.
* Fixed multiple links to the Civilopedia.
* Fixed issue that could cause menu music to play twice and overlap itself.
* Fixed an issue that could cause private MP games to become public.
* Fixed multiple text & grammatical issues.
* Fixed multiple crashes.
==Visuals==
* Added new art for National Parks.
* Updated Mines for several eras.
* Updated Swordsman.
* Improved city fading during combat.
==Multiplayer==
* Hallowed Ground scenario is no playable on huge maps.
* VO now plays correctly when loading a save.
==UI==
* Resource Report now correctly shows resources from several sources:
** Great People abilities.
** Diplomatic Deals.
* Checkboxes for toggle yields and grid now stay in sync with hotkeys.
* Improved differentiation in Government Lens hex colors.
* Added Defeat icon to the End Game Results screen.
==Audio==
* Added sound effect for Quick Save hotkey.