for a regular movie buff like u, i must say that you are very very knowledgeable! i guess that you must be the kind who watch ALL the movies regardless how bad the review is? 

the 4th installment will gonna come out soon...titled "zombi kilang biskut"

and there another good film by mamat khalid....."rock" and its sequel "rock ooo".....film about rock scene in 80'...

Ok, post-2010 movies that cut it to my list:

Songlap (2011) - 5/5
Bunohan (2011) - 5/5
Rock Oo (2013) - 5/5
Adnan Sempit (2010) - 4/5 (hahaha, yes. But don't watch the 2nd and 3rd movies, or the spin-offs, they will make your IQ drop).
SAM (2012) - 4/5 ~ you didn't want Yusof Haslam you maybe meant his son Shamsul? (YH mana direct movies since 2000s la). But this movie is by the other son, and much better than Shamsul Yusof.)
Sembunyi (2013) - 3.5/5
KIL (2013) - 4.5/5
Kolumpo (2013) - 4.5/5
Psiko Pencuri Hati (2013) - 3.5/5
Papadom 2 (2013) - 3.5/5
Kami the Movie (2008) - 4.5/5 (watch the series, it's the best)
Sini Ada Hantu (2011) - 4/5
...Dalam Botol (2011) - 4/5 (gay movie lol)
Cun (2011) - 3.5/5
Nur Kasih the Movie (2011) -4/5 (only if you watched the series because they are related. Watching it as standalone not really satisfying)
Tolong, Awek Aku Pontianak (2011) - 4/5
Misteri Jalan Lama (2011) - 3.5/5
Ombak Rindu (2011) - now I hate the 'message' of the movie, but it's a well executed melodrama actually. 4/5 for technicalities
Hooperz (2010) - 3.5/5
Magika (2010) - 4/5
Istanbul Aku Datang (2013) - 3.5/5

Now showing:
The Journey (2013)- 5/5 (not Malay, I know)
Kami Histeria (2013) - 3.5/5
Cuak (2013) - 4/5
Sejoli (2013) - (haven't watched but probably 3.5-4/5 based on the look)

Relatively recent but pre-2010:
Setem (2009) - 5/5
Papadom (2009) - 4/5
Baik Punya Cilok (2005) - 4.5/5
Pisau Cukur (2009) - 4/5
Gol & Gincu (2005) (note: Gol & Gincu, Pisau Cukur, Istanbul Aku Datang are part of the 'gedik trilogy' = same writer and director. Recently the fourth is Kami Histeria, same team but different director).
Rock! (2005) - 5/5
Puteri Gunung Ledang (2004) - 5/5
Zombi Kampung Pisang (2008) - 4.5/5
Kala Malam Bulan Mengambang (2008) - 4/5
Sepi (2008) - 4.5/5
Cinta (2006) - 5/5
Pensil (2008) - 4/5
Budak Kelantan (2008) - 5/5
Histeria (2008) - 4/5
Chermin (2008) - 4/5
Buli (2004) & Buli Balik (2006) - 4/5
Man Laksa (2006) - 4/5
All 6 Yasmin Ahmad movies - Rabun, Sepet, Mukhsin, Gubra, Talentime, Muallaf (2002-2009) - 4/5 to 5/5

the 4th installment will gonna come out soon...titled "zombi kilang biskut"

and there another good film by mamat khalid....."rock" and its sequel "rock ooo".....film about rock scene in 80'...

Of course not all, I do avoid some notorious directors like plague haha. And I don't really watch movies because of reviews (more often I would look up for reviews AFTER I watched them lol ~ like I said I like to think and reading other people's thoughts are kinda stimulating). I watch movies that piqued my interest, that's all
I hope Zombi Kilang Biskut is not over-commercialized like Jin Pakai Toncit.

In another thread I've made a list of good recent Malay movies (quoted below). Rock and Rock Oo are both 5/5 in my list (big fan of rock kapak hahaha )
The thread has some other recommendations and discussions on Malay movies: https://forum.lowyat.net/topic/3157357/all