Quartus 11.1 Service Pack 2 install

[Altera_Forum]

do i only need to install just service pack 2 or both service pack 1 and 2? (after installing quartus 11.1) 

 explanation I installed Quartus 11.1 and I was planning to install just service pack 2. Normally you just install the latest service pack and it is done. But But I saw different service pack notes for 1 and 2 on the website and confused. Funnyly there is no explanation and both service packs are there.         copy paste from the website that shows service pack differences.      Quartus II Subscription Edition v11.1 Service Pack 2 

• Includes Stratix® V device programming support 
• Includes several enhancements and bug fixes 

Quartus II Subscription Edition v11.1 Service Pack 1  

• Includes device updates 
• Improved support for high-speed transceiver designs in Stratix® V devices and bug fixes 

[Altera_Forum]

more than 20 views and nobody can answer yes/no question?

[Altera_Forum]

--- Quote Start ---   Do I only need to install just Service Pack 2 or both Service Pack 1 and 2? (after installing Quartus 11.1)    --- Quote End ---    Install 11.1 and then install sp2. Service packs are cumulative.  If you are on Windows 7 64-bit, then you'll also need this patch:  http://www.altera.com/support/kdb/solutions/rd03062012_414.html  Cheers, Dave

[Altera_Forum]

Hi, you need to install the following : 

 11.1_173_quartus_windows.exe 11.1_173_devices_stratix_hardcopy_windows.exe 11.1_173_devices_cyclone_max_legacy_windows.exe 11.1_173_devices_arria_windows.exe 11.1_173_dsp_builder_windows.exe (If you need DSP builder)  Followed by 11.1sp2_259_quartus_windows.exe 11.1sp2_259_dsp_builder_windows.exe  In an altera doc, I read a few month ago that Quartus 12 was planned to week 18. I really hope that it will correct the impressive number of issues encoutered with the 11.x releases.