Fruity beers are known as radlers and they are with low alcohol content (usually 2%), which makes them attractive for summer refreashments, and for groups that are not much beer drinkers, like women and older minors (in some parts of the world where it is not so strict).
 

Dating Jelen Fresh radler was quite easy, since each year between 2011. and 2013. on brand's official YouTube channel there is a video clip introducing a new taste of radler. Since in 2016. deer gets dropped from the logo of the crown cap of the main beer, the same happend to the cap for radler. Following further simlifications of the main cap, radler's cap goes through the same change a year or two later.
 

For dating Lav radler caps we used international database at http:/crowncaps.info where we found all 3 caps (for lemon, orange, and red grapefruit) entered in 2012. (although 2013. saw the addition of even newer taste: peach and ginger). The only dilemma was whether Twist existed prior to 2012, when the logo was changed from lion's body to only head, and which cap was on it. The official YouTube channel helped again with a commercial for radler from the beginning of 2012. where we see Twist and LAV logo with a ball at the end of horizontal line on "A" which is lost in the later part of 2012. and onward, meaning that the green cap with body of lion logo belongs to the first Lav Twist lemon:

Mihailo Alić, researcher and collector, Belgrade, May 2021.

http://www.ultrahome.in.rs/crowncaps
http://crowncaps.info/collections/4946