ahmad said: "Although I am not too old, but I already feel outdated."

I **AM** old, tell me about it.

How I cope with Technological advance is to keep learning.

I pick a topic, say IPv6, and spend a month or so reading and playing with code until I am comfortable that I won't make a complete fool of myself in an IPv6 conversation. A Side Note: at the current rate of consumption we really will be out of IPv4 addresses in the third quarter of next year. I expect to get a fair amount of work in the few years consulting with folks who need to run dual-stack (supporting both v4 and v6 addressing) architectures. Think the likes of a shopping web-site, if you can't cope with the Customer's addressing mode, you have lost the sale to someone who can.

I just started poking at Rakudo*. There are part of it that are very familiar, and parts the make my mind itch. This is not unexpected when I start poking at any new Technology. I expect to see Perl6 become Production Ready in the next year or so, so I might even have occasion to use it in Combat. But, I don't expect Perl5 to wither away. There are too many folks that use Perl5 for business-critical things. I will have work as long as I want it. (After all, Perl5 has been reported as a dying/dead language by the Media how many times in the past year or so?)

I learned some time back that there is a language called 'Programming' and, once you have some facility with it, other programming languages (Perl, Ruby, FORTRAN, Lisp, ...) can be learned as dialects of the Ur-language. You have to translate the idioms from Programming into the particular dialect you are writing, but. As to the HTML5 issue -- there is another Ur-Language called 'Display'....

There is an quote from Stephen J Gould (I think, I've seen various attributions) that applies to the problem of Technological Change:

"Biologists have a word for something that doesn`t change; that word is 'dead'."

UPDATE

The quote is from J. S. B. Haldane, and it's even more appropriate:

"Biologists have a word for people who have stopped learning; that word is 'Dead'."