2009 Schweser L1 Version

I have been studying for L1 using 2009 Schweser Notes but at the bottom of the page it says “2008 Kaplan Schweser”. But the copyright section says it is 2009 version. Is this normal or am I using the older version. The LOS matches with the one issued by CFAI. I noticed it after I found that secret sauce instead says “2009 Kaplan Schweser”.

That is correct. I’m using the 2010 version and they say 2009 at the bottom of the page.

study notes were available in late 2008, whereas secret sauce wasn’t available until March of this year which is why you see different dates

Its the date when they wrote the stuff, not referring to the version.