Update 1.6.3 (14 January 2019) Changes:

Update to garbage/recycling collection and emptying of garbage/recycling rooms to provide better stability in larger towers

Updates to Japanese localization
Bug fixes:

Fixed bug with two outdoor decorations (Las Vegas expansion)

Fixed bug with medium electronics store

Fixed bug with mural being relocatable
Update 1.6.2 (11 September 2018) Changes:

Translation updates for Simplified and Traditional Chinese localizations
Bug fixes:

Fixed bug with text display for awnings in hotel buildings (Las Vegas EP)

Fixed navigation bugs in two-story consultant offices (Brilliant Berlin CP)
Update 1.6.1 (16th August 2018)

Changes:

Main menu now shows the "street view" background art for all users, instead of showing "Las Vegas" art if the user had installed the Las Vegas DLC.

Bug fixes:

Fixed bug with Union Hall description in English and Japanese

Fixed bug with a balcony apartment not getting counted in one of the contracts

Fixed bug with bus stop leaving behind trash on removal

Fixed bug with incorrect requirements for a Berlin residence

Fixed so that Brilliant Berlin apartments no longer show up without the DLC
Update 1.6.0 (19th July 2018) New additions - Base game:

Rooftop decorations

New Japanese and Traditional Chinese translations
Bug fixes:

Fixed bug NPC pathing in London Life expansive offices

Fixed bug about build ribbon highlighting during tutorials

Fixed bug about bus station build size

Fixed bug with plaza item building requirements

Fixed translation errors in Polish

Fixed some text bugs in contracts and medals in all languages
Changes:

Updated game engine to Unity 2017.4.4 LTS
Update 1.5.12 (05th March 2018) Bug fixes:

Fixed visibility of expansive offices to London Life content pack

Arrays and antennae shouldn't be placeable underground

Fixed a bug with Tokyo Towers deco not unlocking

Typo and localization fixes
Update 1.5.11 (28th February 2018) New additions - London Life Content Pack:

New London-themed offices

New rooftop building facilities (satellite dishes, antennae)

New London-themed restaurants

New London-themed lobbies and decorations

New outdoor plaza items

New London-inspired artworks (paintings and sculptures)

Three new London Life scenarios

New office/artwork contracts
New additions - Base game:

Added new infrastructure category - doors

Security doors that block all movement

Revolving doors that reduce spread of smells

Sound doors that reduce spread of noises
Bug fixes:

Fixed a bug where the utility ribbon closing unexpectedly in scenarios

Improved Chinese font rendering in ADA report

Fixed medal bug in Las Vegas/hotel "Going Upscale" scenario
Changes:

Updated game engine to Unity 2017.3
Version 1.5.10 (20th December 2017) New additions:

Added Simplified Chinese and Polish translations

Added large winter holiday decorations for tall lobbies and outdoors
Bug fixes:

One-time hint about buzz should not show up in unlimited mode
Changes:

Updated game engine to Unity 2017.2
Patch 1.5.9.1 (14 September 2017)

Fixed a bug where student apartments were showing up outside of the Tokyo Towers content pack

Fixed a bug with some medium retail move-in queues failing to refill

Fixed text display bug with communal bathrooms and recycling services showing the same info on mouseover

Fixed contract bug in Industrial Conversion scenario

Fixed missing header string in ADA population report
Changes:

Updated game engine to Unity 2017.1.1
Patch 1.5.8 (08 September 2017) New additions - Tokyo Towers Content Pack:

New Tokyo-themed apartments

New services for Tokyo apartments

New class of restaurants - food stalls

New Tokyo-themed lobbies and decorations

New Tokyo artworks (paintings and sculptures)

Two new Tokyo Towers scenarios

New residential contracts
New additions - Base game:

Opposite-facing versions of both rooftop restaurants and option to choose during move-in

Opposite-facing versions of both penthouse apartments and option to choose during move-in
Changes (base and content pack):

Retuning of residential services:

Demand should be more balanced for all residential services

Unhappiness for missed service calls for most apartments increased

Overhaul of the decos ribbon

Put items from expansions and content packs into relevant categories

Moved fountains, lobby art and outdoor art items from expansions and content packs into relevant categories

Changed consultant upgrade required for plaza items to be consistent throughout
Bug fixes:

Fixed display problems with weather
Patch 1.5.7 (28 July 2017) Bug fixes:

Fixed bug with demo visitors wanting breakfast in the evening

Fixed unexpected behavior with hotel housekeeping hours

Outside bus terminal is now removable

Fixed a bug where bus terminal placed on the right edge of the game board spawned visitors in an invalid position, and they would get stuck there
Changes:

Updated game engine to Unity 2017.1
Patch 1.5.6 (21 July 2017) Bug fixes:

Fixed bug with common areas where they would all revert to the same visual state on loading a saved game

Fixed bug in bronze medal requirements for Stratified Success scenario (Miami Malls CP)
Patch 1.5.5 (21 July 2017) New additions - Miami Malls Content Pack:

New Miami-themed retail and restaurant tenants

New services for new retail stores

New Miami-themed lobbies, decorations and fountains

Expanded loading dock with vastly more capacity

Train stations and bus terminals that generate extra building visitors

Mall amenities and demo stations to increase visitor traffic

Rooftop observation deck

Two new Miami Malls scenarios

New retail/restaurant contracts
New additions - Base Game:

Six new summertime decos (under the "seasonal" tab)
Changes (base and content pack):

Retuning to improve balance and profitability:

Visitor traffic and generation for all retail tenants

Visitor traffic and generation for large restaurants and some gourmet restuarants
Bug fixes:

Fixed a bug with conference center visuals not appearing sometimes

Fixed some triggers for hotel-related one-time events so they no longer trigger without hotel-related content
Patch 1.5.5.4 (17th July 2017)

Minor bug fixes.
Patch 1.5.4 (21 May 2017) 1.5.4 is now available!

The big addition for 1.5.4 is are the "Fast Track" actions. These can be found in the consultants menu and allow you to spend influence to get one-time boosts. And they can be repeated - if you have enough influence!

We're also announcing a new content pack - Miami Malls - which will be available on July 13. Check out the store page for more details!
New Additions:

New "Fast Track" actions in the Consultants dialog. You can spend influence to get one-time boosts, and repeat them as many times as desired (but their price goes up over time). Each fast track action unlocks only after unlocking the entire category of upgrades.

New one-time event for tourist/entertainment events to match the business event

New keyboard shortcuts

Infrastructure: Z (bulldoze), X (build floor), C (build standard elevator)

TAB (press repeatedly to pan camera to top floor, ground floor, and return)

Shift-Q / Shift-E (zoom all the way in or out)

R (show ADA reports)
Changes:

Updates to French, German, Italian, Russian and Spanish translations
Bug fixes:

Fixed a bug with hotel, casino and event related one-time events occurring without the appropriate things being built
Patch 1.5.2.1 (15th May 2017) Bug fixes:

Removed building of donut shops from the food court tenants list

Fixed error with "Fluid Formations" contract in Home Suite Home scenario

Changed unclear language in "Project Prestige" contract in Live/Work scenario

Changed mouseover for unlimited mode to clarify that achievements will be disabled

Fixed visual bug with people sleeping outside of their room in certain small suites

Fixed visual bug with people sitting in large engineering office

Fixed visual bug with common areas displaying incorrect state after loading from a save file

Fixed visual bug with carrara marble wallpaper overlapping common area visuals

Fixed a bug with the Tutorials achievement not triggering correctly

Corrected the info display of the small club to include requirement for cable TV utility

Upgraded to Unity engine 5.6.0
Patch 1.5.1 (20 April 2017) Improvements:

Screenshot upload (when saving the game) will now capture an image of the entire building

When using Shift + Left Click to fill an entire floor with a utility wire or pipe, it will no longer get interrupted by existing disconnected wires or pipes.
Bug fixes:

Disable HVAC vent placement if the compressor hasn't been placed yet

Consultant offices can now be relocated as well

Fixed grand casino placement getting locked out when more than 1 marquee was present

Fixed contract Epicurean Empire not counting the Small China Shop

Fixed a couple of missing hotel assets, and some mis-spelled or confusing text

Fixed casinos losing too many visitors during a negative random events

Fixed "Meet ADA/360" achievement not triggering
Patch 1.5.0.1 (13 April 2017) New Additions - Las Vegas DLC Hotels

Start by building a front desk, and then build hotel rooms and fill them with visitors

Hotel demand is based on building amenities, prestige and visitor ratings

Hotels generate revenue when guests check out, in the middle of the day (not at end of day, like rent)

Hotel services require a variety of support hotel rooms

Service elevators are required for certain hotel services in order to move carts throughout the building
Events

Build event venues of different types, and then book performers or presenters to host an event there

Events help fill hotel rooms and increase patronage to stores, restaurants and casinos
Casinos

New Las Vegas lobbies, decorations, signs and artworks

Additional utility type - HVAC (air conditioning)

A variety of Las Vegas themed contracts, NPCs and animations

Las Vegas cityscape background and building exterior

Five new scenarios
New Additions - Base Game

Random events

Randomized events in sandbox games that temporarily alter the economy and certain elements of the simulation

Utilities that are used at 100% of their capacity are likely to short out and shut down

Events can be turned off in "advanced settings" during new game setup.

Tenant relocation

Movers office is required to start relocation

Offices, apartments, stores and restaurants can now be moved for cash and influence cost

Services and artworks can now be moved for cash cost

Several new restaurant and retail tenants can be built

Additional contracts added based on new content

Small tuning adjustments to base game to improve gameplay
Bug fixes:

Putative fix for trash rooms that don't empty in certain save files
Patch 1.4.0 (26th January 2017) New Additions

Modern skyscraper lobbies. You can add 2-story and 3-story lobbies to your building, by placing them on top of finished empty floor (and you can use the bulldozer to delete them).

Large-scale decorations that fit large skyscraper lobbies.

Several new wallpapers for regular-sized floors that match lobby visuals.

New scenario: Contemporary Conversion

Patch 1.3.1.1 (24th January 2017)

Minor hotfixes
Patch 1.3.1 (19th January 2017) New Additions:

New scenario: Above the Skyline
Improvements:

Contracts can now be cancelled, if you're willing to pay the penalty
Bug fixes:

Fixed a bug with contract unlocking for the Highrise Living contract

Flyout text now scales correctly with UI scaling settings
Patch 1.3.0.1 (07th December 2016) New Additions

Rooftop Restaurants and Penthouse Apartments. They combine indoor and outdoor elements, and can only be placed on the top floor.

Winter Holiday Decorations. Deck the halls with new decos for the holiday season, including Christmas trees and more!

Unlimited Mode. When you don't want to worry about the economics, and just want to architect the greatest building in the world, check out this mode under "New Game".

New scenario: Going Green

Improvements

Occasional snow flurries instead of rain, somewhat randomly, depending on the day of the year
Bug fixes

Fixed a bug where some restaurants were overly sensitive to losing regular customers

Confirmation dialogs (ok/cancel) should no longer hide the dialog over which they are displaying
Patch 1.2.0.1 (10th November 2016) New Additions

Skybridges. You can now place a skybridge that connects two towers. Skybridge tiles can contain decorations and furniture, and carry utilities, but cannot be leased to tenants.

Cantilevered floor. You can place a floor that extends up to four tiles beyond existing floor immediately below.
Improvements

When placing utilities, hold down SHIFT to auto-fill an entire empty floor (the floor needs to have an existing closet, already hooked up to the rest of the network)
Bug fixes

"New Game" dialog now remembers the last-chosen sandbox difficulty level and lot size

Fixed the custodial room showing a "services full" or "unhappy" notifs

Fixed a bug where removing a storage room assigned to a retail store did not reduce the store's happiness.

Fixed a bug with small plaza tiles not showing up after placement
Patch 1.1.2 (26 October 2016) Additions

Added Titans of Trade scenario
Improvements

Updated names for difficulty levels to be easier to understand

Increased the frequency of trash and recycling bins getting checked and emptied into the collection room

Adjusted services for loft apartments to increase their capacity and decrease frequency of calls

Adjustments to UI elements in Russian translation for improved readability

Bug fixes

Fixed utility requirements not showing up for custodian office, broom closet, and amenities

Added a cooldown period for global rent settings. This fixes an exploit where the player could jack up global rents before midnight, and reset right after, and not suffer a happiness hit.

Person's info box no longer floats off screen when UI scale is set to more than 100%

Fixed a bug with final luxury apartment contract (Living Large) where large luxury apartments were not being counted properly.

Fixed a bug with building amenities not recoloring when they're first unlocked with prestige

Fixed a bug with localized text missing in a contract for the Flatiron scenario

Fixed a bug with contracts in Project Rescue scenario
Patch 1.1.1 (20 October 2016) New additions

Added seasonal Autumn and Halloween decorations for your building

Added a Russian translation
Bug fixes

Fixes in Italian, French translations

UI bottom ribbon bug fixes, to make the buttons
Patch 1.1.0 (13 October 2016)

New kinds of amenities can be placed around the building:

A variety of vending machines

Narrow payphone booths

Shoe shine stations

Residential common areas

Office workers and residents will get a happiness boost from using amenities near their office or home, and some of them provide additional benefits as well.

New mechanics for grime control: custodial broom closets can be placed in the building, to reduce grime production on the entire floor. However their total number is limited and they require custodial supply rooms to support them.
Patch 1.0.7 (6th October 2016) Improvements

Art galleries no longer generate noise

Adjusted gold and silver medals for Project Rescue scenario

Reduced the strength and impact of elevator proximity heatmap

Reduced prices for art pieces on higher difficulty levels

Further tuning changes to prevent units from reacting to their own foot traffic

Performance optimizations for very large buildings (more than 1000 people)
Bug fixes

Fixed a description bug in the Federal Center scenario

Fixed a bug with contract unlock in the Live Work scenario

Fixed visual bugs with empty floor and construction sprites flickering
Patch 1.0.6.2 (27th September 2016) Improvements

Reduced the traffic impact that people have on their own offices and apartments

Reduced the frequency of elevator breakdowns

Adjusted color palette for character clothing, make them a clearer match for workplaces

Service placement mode is "sticky" until the user right-clicks out of it

Tenant move-out improvements: -- New pop up ticker alerts the player when a tenant suddenly moves out -- Click on the ticker to pan the camera over to their former location -- Click on debris left behind to get more info on why they moved out

Upgraded to Unity engine 5.4.1
Bug fixes

Fixed a bug where overlays would appear shifted over narrow lots (scenarios and sandbox)

Fixed a bug where placing a utility every second tile would cost half as much as it should

Fixed a bug where executive and regular elevators could be attached together

Fixed a bug where placing a large utility meter did not include utility lines in same location
Patch 1.0.5 (21st September 2016)

-#####Improvements

Added a new graphics option to customize heatmap colors, for players with color blindness

Added a hint mouseover that displays what a tenant is going to need after they moved in, but before they start demanding it (see an icon "i", next to tenant's satisfaction smiley)

Added a fast camera pan mode: CTRL + mouse wheel now pans the camera up and down

Retuned worker and resident NPCs to patronize retail stores much more than they used to

Retuned retail store revenues and limits, to account for the change in customer base

Retuned restaurants and retail to be more sensitive to not generating enough profit
Bug fixes

Fixed arrow keys so that they behave exactly like WASD, +/- behave like Q/E

Fixed a bug where the budget popup would show up twice in a row, give double revenues (This should also fix restaurants + retail incorrectly showing "0 customers yesterday")

Fixed a problem with media campaign "Call in a Favor" not unlocking an extra contract

Fixed broken achievements for 5 and 10 scenario gold medals

Fixed a bug where floor tiles would remain unfinished forever, if you destroyed the construction office while construction workers were finishing them

Fixed art gallery consultants incorrectly demanding utilities

Fixed a bug where construction grid was displayed mis-aligned after a height upgrade

Fixed loan repayment so it will show up in reports as a one-time expense not a daily one

Fixed a bug where a mis-timed renovation could bring the player's cash amount below $0

Fixed the renovation button to very clearly gray out if a renovation was already scheduled

Fixed a display bug where a new scenario would briefly show incorrect cash amount at startup

--
Patch 1.0.4 (15th September 2016) Improvements

Added UI scaling below 100% (for displays smaller than 720p)

Retuned higher-level tenants to make fewer service calls

Initial construction office can now be removed, and placed elsewhere

(it shows up in the infrastructure build menu after bulldozing)
Bug fixes

Fixed a bug with courier and copy center services not reporting correctly

Fixed UI scaling selection not getting saved

Fixed incorrect logging of "I can't get to where I need to go" feedback

Fixed a bug with some gourmet restaurants not being counted in goals

Fixed a bug with cleaner service causing navigation problems for workers

Fixed incorrect rent pricing for studio apartments

Fixed some incorrect animations for restaurant visitors

Fixed the "+1 construction worker" upgrade getting undone if the player

bulldozed and rebuilt the expanded construction office

Services will no longer consider themselves "overloaded" if only a small

number of service calls (<= 3) were not fulfilled

Fixed achievements that were failing to register: the tutorials-related achievement,

Wording improvement: clarified placement requirements based on media campaigns

Fixed inconsistency with "Exclusive Electricity" media campaign,

now power/water meters get discounted in addition to conduits and closets

Fixed sports bar not getting counted as a large dinner restaurant in contracts

Fixed some prestige inconsistencies
Patch 1.0.3 (12th September 2016) Improvements

Increased capacity of certain services

Increased height caps in sandbox mode
Bug fixes

Text fixes in multiple languages

Fixed a bug where bulldozer tool had slightly different removal behavior than clicking "evict or remove" button in the unit's dialog

Fixed a bug with some decorations leaving behind boxes when they're removed

Fixed a bug with 2-story plaza decorations leaving behind boxes that float in the air

Fixed a bug with construction workers floating mid-air if you deleted the floor around and underneath them, now they get snapped to the ground

Fixed a bug with deleted floor tiles showing "destination unreachable" warnings

Fixed a bug where broken elevators sometimes did not get fixed

Fixed a bug where trash boxes sometimes did not get collected

Fixed a bug where time like "4:30" would be displayed incorrectly sometimes

Fixed a bug where some restaurant workers were not getting dinner and complaining

Fixed several tuning problems with media campaigns

Fixed a pricing discrepancy between 2BR and 2BR Lux apartments

Fixed out of bounds pathing anchors in several restaurants and retail stores

Fixed gourmet restaurant goal not accepting seafood restaurant

Fixed requirements for finance HQ office requiring too many financial offices
Version 1.0.2 Bug fixes

Text fixes in multiple languages