Update Details
The Fragments Update:

- 2 new Smithing Perks have been added

- Dwemer Smithing
Allows you to craft basic Dwemer Constructs to aid you in Battle

- Advanced Dwemer Smithing
Allows you to craft more advanced Dwemer Constructs using upgrade cores

Update Details
The Blackreach Update:

- Dwemer are now aligned with the Falmer which means they will run to their aid and vice versa, so be careful when attacking Falmer in Blackreach

- Dwemer now drop Dwemer Fragments that can be traded in future updates for items, spells and equipment. The Champions drop Champion Fragments which can be used to purchase better equipment

- Dwemer have moved into Blackreach and started gathering resources.

New Dwemer Units:

Dwemer Overseer - Will buff nearby Dwemer units in future updates and slightly stronger than normal Dwemer

Dwemer Security Arachnid - Alerts nearby Dwemer to the presence of an enemy, makes it harder for sneaking classes to creep up on Dwemer units

Dwemer Miner - Average Dwemer unit that can be found around Blackreach mining for ores to aid the Dwemers return, they will also carry ores in future updates that can be obtained by killing them

Dwemer Mining Centurion - Smaller than the mining Goliath but a little larger than normal centurions. These are used by the Dwemer for mining ores and salvaging resources

Dwemer Champions:

Agrun The Pneumatic Champion - A large Dwemer champion with a pneumatic fist, be careful facing this guy near ledges as his power attacks can launch you long distances

Broken Dwemer Mining Goliath - A Goliath used for opening up new caves for construction but currently not functioning correctly so does not drop a champion fragment yet, will be fixed and patched for future updates