You previous saves will work for the most part. However, if you're looking to get the best out of this, or you have found your current save is glitched (stuck in seasons, etc), then I suggest you start a new game. This patch contains the following + more.

• Fixed not being able to buy more than 3 buildings after ranking up.
• Fixed a bug where buffs and debuffs and aflictions and whatnot wheren't showing up when you selected someone.
• As per the request of a community member, if you choose to keep a sick worker employed while they cannot work, they will now only take half wage.
• People will now have better immune systems
• Horses should now be less inclined to trot around on roofs, going clippity clop with their hoofs.
• The horse cart you can buy for your house should now show up when you hover over the button for your house
• Any building you own will now have a blue icon when the overview map is displayed.
• Wind and rain sounds are now less obnoxious
• Fixed a really stupid bug where people wouldn't pay for stuff from your bakehouse
• In the tutorial, placed a bush near one of the apple trees for just in case you are trying to do that objective during winter, when apple trees have no fruit
• Set a 100 gold limit for breaking into a building
• Some people got stuck in an endless winter - I found a cause for this and fixed it. Hopefully that's the only cause.
• Made some slight adjustments, which should hopefully help with some crashes
• Lowered the price of mines and woodcutting huts by 1000. I think they were a priced a bit high.
• Fixed a bug that was causing money notifications to get stuck on the screen
• The supervising buff will now last 2 minutes, instead of 1.
• Double-clicking a portrait while in overview map mode will now exit overview map mode
• Some changes to prices and the equation that calculates the prices based on demand
• A new marathon day length, as well as additional options for the other start settings
• Fixed an issue with days per year calculation that caused bugs
• The time at which people leave for work is now based on how long the day is, this should mean that they arrive on time to work.
• You can now use - and + keys to speed up and stop time. Pause > Normal > x2 > x3. Can no longer speed up time while sleeping.
• Metalworker. Makes jewellery (more productions to come). Wealthy people buy jewellery from the market to feel fancy.
• Proper GUI scaling
• AI will now wait for a bit before buying property at the start of the game
• Breaking into a business now doesn't result in money, and breaking into a house now results in less money.
• A thief who is wearing a hood will now be better at pickpocketing compared to a thief with no hood.
• Lots of bug fixes with game lengths, and years passing, etc
• Changes to how the camera works, I am unsure if it will be better or worse