It started life as a copy of Net_LDAP but introduced some API changes so beni created a new package instead of breaking the old Net_LDAP one.
But, as of now: Net_LDAP is deprecated, old and broken!
Going forward: how do I migrate?
Pretty simply replacing calls to
Net_LDAP2*will get you 90% of the way.
You can see there is little difference between the two, apart from the latter being E_STRICT friendly.
With this release, Net_LDAP will only be maintained for bugfixes and security issues. Please move to Net_LDAP2 which is actively developed and constantly gets new features.