Im playing rogue assa in cata classic and after read some guide I don't understand some things about stats. 
I know as a rogue assa I have to priories hit rating until the spell hit cap of 17% (1332 if I remember) but i dont understand how to manage other stats like mastery and haste/crit or expertise. 
Did I have to put full mastery ? and reforge all the crit chance, expertise and reforge haste at least ? Or did I have to balance mastery and haste ?
Can someone help me to understand in wich ordre and priority I have to manage stats as Assa Rogue in wow cata classic ?

Hi, i need help with my race as a UH DK. I've been raiding with my guild and realize that the other UH DK (an orc) is topping DPS and me as a blood elf just suck. I've been looking at wcLogs and found that i got 2k strenght less than him, looking at the top UH DPS the first 20 or 30 are orcs.
I just wanna know if as an orc i had that 2k extra str. I've been looking for an answer since last week, just cant believe i got 2k str less than any other DK just for my race.
Thanks for your time guys.

No Dragonflight in today's hotfix batch, as we get Remix and Cata improvements only! A TBC tier set bonus gets removed and Priests and Shamans get some adjustments, with some pretty interesting changes in there.
 June 21 (Source)
WoW Remix: Mists of Pandaria
Fixed an issue causing Echo of Light from Holy Priest to scale incorrectly when there’s a level disparity. Cataclysm Classic
Shaman Fire Elementals will now prefer targets that have their master’s Flameshock active on them, and will switch to those targets over targets without their master’s Flameshock. This check occurs only once every several seconds, so may take a little time to occur. Temporarily removed the Elemental Shaman (2) Set Bonus on the Burning Crusade Tier 4 set. Developer’s note: The 2 Piece Elemental Shaman Tier 4 bonus has a bug that existed in original Cataclysm, but was found later on in Warlords of Draenor. If this bonus were to remain in its bugged state, it would cause Elemental Shamans to wear 2 Pieces of The Burning Crusade tier for the entire expansion and we kind of like it when people have to progress their gear. Because the real fix we wish to do requires server restarts, we are removing the 2-set bonus off of the set for the weekend, and then placing it back after server restarts in its fixed state.

Blizzard have dramatically reduced the gap between available services like server transfers and race/faction changes! They're down from 30 days to only 3.
Transfers (Source)
Greetings Cataclysm Classic adventurers.
We’ve recently deployed a hotfix that reduces the cooldowns for race change, faction change, and paid server transfer on Cataclysm Classic realms from 30 days, down to 3 days (72 hours). This change also applies retroactively, so for those who are currently on a cooldown after initiating these services within the past 30 days, expect your cooldown to be completed after 3 days from when the service began.

Blizzard will be changing the way Moonkin plays in Cataclysm Classic, as they were seen players heavily favor the Solar end of the balance and changed things up last week. Today they have changed things once more, as Insect Swarm is now Spellstorm damage, so that going into Lunar Eclipse is more appealing.
Balance (Source)
Greetings Moonkins.
We noticed that Balance druid gameplay was seeing a trend towards sitting in Solar and trying not to leave it, especially in Multi-DoT situations. Not engaging with a decent chunk of your core rotation to stay in Solar Eclipse is not a playstyle that we nor the original developers had intended, so we released a change last week that was aimed at preventing mastery snapshotting pre-pull by resetting Eclipse when engaging a boss.
Having your Eclipse state reset on boss pull does a few things:
It lets Balance druids start pulls on a relatively even playing field (even after wiping) It makes you less reluctant to participate in trash pulls instead of saving an Eclipse state, and It also doesn’t punish a player who was recently in Solar, and starts a boss with their bar pushing towards Lunar Eclipse We acknowledge this change required breaking a few Moonkin eggs and understand this could be a damage reduction in many scenarios. As a result, we went looking for a lightweight change to bring back the DPS lost from not being able to start in a specific Eclipse state, and to attack the core problem that Moonkins were facing that made them want to play ‘Sunkin’ in the first place–it feels bad to leave Solar Eclipse.
To address this, we recently deployed a hotfix that changes Insect Swarm to now deal Spellstorm (Arcane/Nature) damage so it can now benefit from Lunar Eclipse. This means that when you end up in Lunar Eclipse, you will still be buffing your two core DoTs. We estimate this change to be about a 15% damage increase to Insect Swarm, which is typically a Balance Druid’s second most damaging ability on non-single target encounters. There may still be situations where staying in Solar Eclipse is ideal, and that’s totally fine, we just don’t think it’s healthy for that to be every situation and on every pull.
We recognize that the lack of communication when the first change went live was frustrating, but we wanted to get the initial change out quickly so that the gearing meta did not settle in a specific way for Balance Druids, only to have that change a few weeks later while we continued to iterate on this set of changes. We look forward to seeing your Lunar Eclipsed swarms in action and will continue to monitor druid performance after this change.
Thank you!