Don't play queenside castle. Play castle on the kingside. These mainlines don't allow you to get crazy. If you castle queenside then black is faster with the attack and you will remain worse. You have to show patience and build up slowly ( it's a drawish line so don't try to hard to create play)
how do deal with blacks annoying 9.h5 in the tartakower caro kann?

Don't play queenside castle. Play castle on the kingside. These mainlines don't allow you to get crazy. If you castle queenside then black is faster with the attack and you will remain worse. You have to show patience and build up slowly ( it's a drawish line so don't try to hard to create play)
could you provide a few example lines? when you castle black usually continues with h4 and a potential attack on the kingside

Also you can always play the advance, which as a caro player, feels much more challenging. In fact, I PRAY somebody actually lets me go into the main line for once.

I prefer castling short here for white. Not to say I haven't gotten mated before as black here when white castled long, but I think white just has a slight advantage in those castles short lines
You also don't have to allow this; there are lots of other ways for white to play vs ef6. For instance Nikos Ntirlis on X: "4/ 4... Nf6 5. Nxf6+ exf6 6. Be3! This is the move seems to be challenging and practical for White to investigate. After the natural moves: 6...Bd6 7. Bd3 O-O 8. Ne2 (D) Re8 9. O-O Nd7 10. c4! White plays at the side they are stronger (majority) https://t.co/s5RuSrc3FW" / X (twitter.com)

another idea is not to play Nxf6. play Ng3. Blacks general tactics don't exist if exf6 doesn't happen.

Don't play queenside castle. Play castle on the kingside.
This. I used to try castling long in this line, and I got nowhere with it. For a while, I gave up the whole Classical variation because of this. But after changing to short castling (10. 0-0 h4 11. h3), I've found this line much more pleasant to play. White has a space advantage, our pieces stand fairly well, and we'll have the better endgame because of the queenside majority. It's not a big advantage, but it's a fairly stable one, and it's not so easy for Black to come up with a plan. And sometimes White even manages a piece-based kingside attack. (Don't try to force it though.)

the computer recommends the interesting 12.d5! here
I don't understand why thats good. Yes, it helps you break in the center, but is giving up a pawn worth it?
edit: just saw ur annotations. Turns out it isnt a pawn sac.

I deal with it by not playing the Mainline Caro-Kann in general.
Isnt 3.Nc3 the main line? i guess its possible that times have changed though and its not longer the main line

I deal with it by not playing the Mainline Caro-Kann in general.
Isnt 3.Nc3 the main line? i guess its possible that times have changed though and its not longer the main line
Right -- I think his point (which wasn't exactly helpful) was that you can avoid the Tartakower by just playing something other than 3. Nc3.
The rest of us were taking you at your word that you want to keep playing the main line and are looking for ways to make the Tartakower variation of it work.
Minor caveat to the above: statistically, the old main line probably isn't the main line any more (the Advance Variation is a bit more popular these days). But people still refer to it as the main line, since there doesn't seem to be another name for it.
Further minor caveat: I play the main line with 3. Nd2 instead of 3. Nc3, which, in 99% of cases, transposes immediately, but which gives you a simple, effective way to play against the rare Gurgenidze Variation, in which Black plays 3. ... g6. The point is that, if your knight is on d2, you can just play 4. c3, and Black's fianchetto setup looks pointless. But this line is completely out of favor against either 3. Nd2 or Nc3 (for independent reasons -- I believe there's supposed to be some complicated refutation that I never bothered learning), so it will almost never make any difference.

I deal with it by not playing the Mainline Caro-Kann in general.
Isnt 3.Nc3 the main line? i guess its possible that times have changed though and its not longer the main line
Right -- I think his point (which wasn't exactly helpful) was that you can avoid the Tartakower by just playing something other than 3. Nc3.
The rest of us were taking you at your word that you want to keep playing the main line and are looking for ways to make the Tartakower variation of it work.
Minor caveat to the above: statistically, the old main line probably isn't the main line any more (the Advance Variation is a bit more popular these days). But people still refer to it as the main line, since there doesn't seem to be another name for it.
Further minor caveat: I play the main line with 3. Nd2 instead of 3. Nc3, which, in 99% of cases, transposes immediately, but which gives you a simple, effective way to play against the rare Gurgenidze Variation, in which Black plays 3. ... g6. The point is that, if your knight is on d2, you can just play 4. c3, and Black's fianchetto setup looks pointless. But this line is completely out of favor against either 3. Nd2 or Nc3 (for independent reasons -- I believe there's supposed to be some complicated refutation that I never bothered learning), so it will almost never make any difference.
yeah i like the positions that come out of 3.Nc3. Its just that 9.h5 of the tartakower is difficult to play compared to most other positions in 4.Bf5 or 4.Nd7
i also stopped playing the advanced because eventually people know the theory in the tal or bayonnet variations, and the short variation is not my cup of tea.

Do try the short-castle lines. They're not as sexy as trying to castle long, but with a little practice in them, you'll probably be happier with the positions you get.

I deal with it by not playing the Mainline Caro-Kann in general.
Isnt 3.Nc3 the main line? i guess its possible that times have changed though and its not longer the main line
Against the Caro-Kann, I play 2. d3 instead of 2. d4.

Post 6 gave you another very good option which is a more modern one. I would recommend you to study master games in these lines and look for ideas.

I deal with it by not playing the Mainline Caro-Kann in general.
Isnt 3.Nc3 the main line? i guess its possible that times have changed though and its not longer the main line
Against the Caro-Kann, I play 2. d3 instead of 2. d4.
I go for 2. Nf3 d5 3. d3, which isn’t quite the same as the Breyer proper, but hey it’s fun to see a fellow Breyer player here.
ive been playing 3.Nc3 agianst the caro kann alot recently and 9.h5 has been very annoying to face on lichess, so i want to know if there is an antidote and way to win as white?
i typically play in this fashion
its very difficult for me to start a kingside attack due to blacks h5 push and i often have to then deal with blacks queenside attack while i struggle for counterplay in the center. Is there a better way to play this? could i get recommendations and improvements on this from people please.