On Equipment:

• Playing Cards are now an item instead of the more generic Gaming Set.
• Potions of Healing are described as being red.
• Spellbook is not described as a magic focus, but this might just be a difference between the full game and the basic game.
• Tinderbox now specifies that lighting more challenging fires takes 1 minute, instead of at least as long as a torch (1 action).
• Torch specifies it deals 1 fire damage if you hit someone with it (and it’s burning, obviously).
• All of the Mounts, Tack & Harness, Food, Drink and Lodging tables are new.

On Weapons (and Armour):

• Splint Mail reduces your speed by 10 feet if your Strength is lower than 15. (Previously, it just reduced speed by 5 feet).
• Javelins can be used in melee or thrown.
• There are minor adjustments to the weights of weapons. E.g. Clubs, Handaxes, Javelins, and Light Hammers weigh less.
• Quite a few weapons aren’t listed in the starter set; e.g. Sling, Flail and Pike.

On Spells:

• Warding Bond is a new 2^nd level cleric spell
• Revivify and Spirit Guardians are new 3^rd level cleric spells
• There is no Read Magic in the starter set cantrips for Wizards!
• Misty Step is a new 2^nd level wizard spell
• DC to resist spells is 8+proficiency modifier+spellcasting ability modifier rather than 10+spellcasting ability modifier (the latter was retained in the How to Play document, despite being replaced in the Classes document)
• It’s Wizard, not Mage!

On Magic Items:

• Boots of Striding and Springing give a flat speed of 30 feet if you are normally slower, in addition to other effects that were in the playtest.
• +1 armour never rusts nor deteriorates.
• You can identify items by concentrating on them during a short rest.
• Potions can be identified by a taste test. (In the playtest, this might not have worked).
• You can end your attunement to an item with a short rest. In the playtest, it instead required 10 minutes.
• Likewise, attuning to an item takes a short rest rather than 10 minutes.

Further changes are listed here (Starter Set Fighter) and here (Wilderness Map Changes)