You have to hand it to Blizzard, they are a tenacious bunch. Despite starting off with a rather shaky foundation, to put things lightly, they've managed to slowly turn Diablo 3 around and eventually transform it into something wonderful. The expansion helped, naturally, but every single update that came out in the past year or so has been right on the mark.
The same applies to the upcoming Patch 2.4.2 which brings with it the expected balance changes and bug fixes, but also a couple of new difficulty levels, adjustments to gold rewards, and a bunch of new items to collect. As of right now Patch 2.4.2 is only available on the Public Test Realms, but it should make its way to the official servers in a couple of weeks, as long as any devastating bugs don't decide to crash the party.
Since the patch notes are quite large I would recommend you head over to the Diablo 3 blog and dig into them there, especially if you're a Demon Hunter. As for me, allow me to just present you a couple of the "more important" changes:
GENERAL
• New difficulty levels, Torment XI-XIII have been added to the game
• Gold rewards have been adjusted:
- Greater Rift 26 and up has been rescaled to a flat 3% increase per tier
- Torment VII-XIII has been changed to match Greater Rift reward scaling
- The cost to empower a Greater Rift has been reduced to match the new gold reward rate
Demon Hunter
• Active Skills: Spike Trap has been redesigned
- Traps no longer have an arming time
- Traps now only detonate once
- Now has 4 charges each with a 5 second recharge time
- All active traps are now detonated by the next Hatred spender you cast
- Damage increased from 340% to 950% weapon damage
- Hatred cost reduced from 30 to 10
Items
• Bottomless Potion of Chaos - New Legendary Potion
- Teleport to another location when used below 40% health
If you ever thought that playing Diablo 3 on the hardest difficulty in the Hardcore League was too easy, well, now you have a "proper" way to challenge yourself once again. Most of these changes are self explanatory, so I won't waste your time with pointless elaborations, but I will say that the Bottomless Potion of Chaos pleases me greatly. Nothing quite like throwing the dice and then watching yourself either get miraculously saved... or thrown into a whole bunch of very, very perturbed bees. Is it viable in Hardcore? Probably not, but I can imagine it being a whole load of fun regardless!
In order to test out Patch 2.4.2 for yourself, you will simply need to go to the official FAQ and follow the instructions outlined there. It shouldn't take you more than a couple of minutes, the actual download process notwithstanding.