Yes,
Is Image Handler 4 compatible to version 2.1.0 yet?
Wade
Printable View
Yes,
Is Image Handler 4 compatible to version 2.1.0 yet?
Wade
You should see the readme for IH4 and zc2.1.0 considering requirements and then decide.
Is there any issue for you upgrading to IH5?
IH4 was very good. IH5 is superb and a well maintained plugin.