123 new blocks and items were added to Minecraft 1.17 java edition.
Caves and Cliffs - Part 1
A long term fan request, this update adds more cave features and sub-biomes, several cave and mountain related mobs, and notably the new copper ore. This release of features is to be spread over 2 updates, so some blocks and items are avalible only in creative mode.
Amethyst Cluster
Amethyst Shard
Azalea
Azalea Leaves
Big Dripleaf
Black Candle
Block of Amethyst
Block of Copper
Block of Raw Copper
Block of Raw Gold
Block of Raw Iron
Blue Candle
Brown Candle
Budding Amethyst
Calcite
Candle
Chiseled Deepslate
Cobbled Deepslate
Cobbled Deepslate Slab
Cobbled Deepslate Stairs
Cobbled Deepslate Wall
Copper Ingot
Copper Ore
Cracked Deepslate Bricks
Cracked Deepslate Tiles
Cut Copper
Cut Copper Slab
Cut Copper Stairs
Cyan Candle
Deepslate
Deepslate Brick Slab
Deepslate Brick Stairs
Deepslate Brick Wall
Deepslate Bricks
Deepslate Coal Ore
Deepslate Copper Ore
Deepslate Diamond Ore
Deepslate Emerald Ore
Deepslate Gold Ore
Deepslate Iron Ore
Deepslate Lapis Lazuli Ore
Deepslate Redstone Ore
Deepslate Tile Slab
Deepslate Tile Stairs
Deepslate Tile Wall
Deepslate Tiles
Dripstone Block
Exposed Copper
Exposed Cut Copper
Exposed Cut Copper Slab
Exposed Cut Copper Stairs
Flowering Azalea
Flowering Azalea Leaves
Glow Berries
Glow Ink Sac
Glow Item Frame
Glow Lichen
Gray Candle
Green Candle
Hanging Roots
Infested Deepslate
Large Amethyst Bud
Light
Light Blue Candle
Light Gray Candle
Lightning Rod
Lime Candle
Magenta Candle
Medium Amethyst Bud
Moss Block
Moss Carpet
Orange Candle
Oxidized Copper
Oxidized Cut Copper
Oxidized Cut Copper Slab
Oxidized Cut Copper Stairs
Pink Candle
Pointed Dripstone
Polished Deepslate
Polished Deepslate Slab
Polished Deepslate Stairs
Polished Deepslate Wall
Powder Snow Bucket
Purple Candle
Raw Copper
Raw Gold
Raw Iron
Red Candle
Rooted Dirt
Sculk Sensor
Small Amethyst Bud
Small Dripleaf
Smooth Basalt
Spore Blossom
Spyglass
Tinted Glass
Tuff
Waxed Block of Copper
Waxed Cut Copper
Waxed Cut Copper Slab
Waxed Cut Copper Stairs
Waxed Exposed Copper
Waxed Exposed Cut Copper
Waxed Exposed Cut Copper Slab
Waxed Exposed Cut Copper Stairs
Waxed Oxidized Copper
Waxed Oxidized Cut Copper
Waxed Oxidized Cut Copper Slab
Waxed Oxidized Cut Copper Stairs
Waxed Weathered Copper
Waxed Weathered Cut Copper
Waxed Weathered Cut Copper Slab
Waxed Weathered Cut Copper Stairs
Weathered Copper
Weathered Cut Copper
Weathered Cut Copper Slab
Weathered Cut Copper Stairs
White Candle
Yellow Candle
Technical blocks that can't be placed in inventory, can be placed in world by /setblock. Not included in our new block count, as usually they are attached to an item version.
Big Dripleaf Stem
Cake with Black Candle
Cake with Blue Candle
Cake with Brown Candle
Cake with Candle
Cake with Cyan Candle
Cake with Gray Candle
Cake with Green Candle
Cake with Light Blue Candle
Cake with Light Gray Candle
Cake with Lime Candle
Cake with Magenta Candle
Cake with Orange Candle
Cake with Pink Candle
Cake with Purple Candle
Cake with Red Candle
Cake with White Candle
Cake with Yellow Candle
Cave Vines
Cave Vines Plant
Lava Cauldron
Potted Azalea
Potted Flowering Azalea
Powder Snow
Powder Snow Cauldron
Water Cauldron
Particles
Dripping Dripstone Lava
Dripping Dripstone Water
Dust Color Transition
Electric Spark
Falling Dripstone Lava
Falling Dripstone Water
Falling Spore Blossom
Glow Squid Ink
Scrape
Snowflake
Spore Blossom Air
Vibration
Wax Off
Wax On