Since yesterday (15th April 2015) the latest Oracle Application Express (APEX) release 5.0 is available for download.
APEX 5.0 can be found under http://www.oracle.com/technetwork/developer-tools/apex/downloads/index.html
The new APEX 5.0 is supported for all Editions of Oracle Database 126.96.36.199 or higher, even Oracle Express Edition 11g (XE) can be used for the new APEX 5.0
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