The PHP developers are still patching and adding functionality with each release but their hands are tied with "backward compatability". I'm sure there are a lot of features they would like to remove/alter but cannot due to breaking older scripts.

There has not been a huge uptake of php5 in the hosting industry (developers are not using it for commercial applications for this reason alone, hosters arent adopting it as there are few scripts written in it, catch22) and I dont see much of an uptake of 6 either unless it is a new standalone version. I would like to see the developers bite the bullet on v6 and forget backward compatability and implement everything they would like to in 6 and release it as a seperate language. Some hosts have phpv4 and phpv5 installed on their systems and it would be easy to provide a v6 version too.

The only thing I would really like added to v6 is variable casting as standard.

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