Hello I've some understanding of joomla component development. i wish to realize that exactly what is a fundamental change require for joomla 1.5 aspect of joomla component 1.6 .

have have idea kindly replay me.

There's a wiki page for that on Joomlas docs wiki.

Although it doesn't appear to become complete at this time, it will assist you.

Your component might even just work with no changes.

You will find muchos alterations in Form input handling, and definition. Also, cellular phone xml file has transformed. The overall consensus within the Joomla! community appears to become hold back until the following release due in June 2011. Ive even seen Joomla! Devs reccomending people start new Websites in Joomla! 1.5.. Conclusion: you might like to postpone for a little! D