Credit to akdukaan for the addition.

You can now specify a warp name format regex in the config:

Thanks to @DrBot for the contribution

Previous version was tab-completing commands which you did not type. Fixed that issue.

Thanks to @DrBot for the majority of work that went into this update.

Subcommands are now only tab-completed when the player in question has the necessary permissions.

When creating a iWarp war and not specifying the amount of days, 1 day will be assumed.

Fixed issue that allowed one to rename their iWarp warp to any (possibly existing) non-iwarp warp.

Thanks to @DrBot

They would previously cause error while attempting to save the warp to a file.

Now periods will not be allowed in warp names. There is a separate new message for such cases when creating a warp.

New message:
Thanks to @AcornMC for bringing this to my attention.

Added possibility to require confirmation for renewal

Fixed typo in help message

New config entry:
New message in config:

The new addon is a warp limiter.

It allows (when enabled) to limit the amount of warps each player is allowed to create through iwarp.

New section in config:
default number of warps
default: 1 # iwarp.limits.default -> warps
VIP: 3 # iwarp.limits.vip -> VIP number of
Whoever has the iwarp.limits.default permissions (by default, everyone) can create 1 warp and whoever has iwarp.limits.vip permission (by default, nobody) can create 3 warps.
Whoever has the iwarp.limits.override permission can create infinitely many (read: 2^31 - 1) warps.

Only the permission associated with the biggest number is taken into account.

Added BStats.

There's a config option to disable BStats if you wish.

Also fixed typo in plugin.yml that meant Essentials and Vault weren't proper dependencies (which caused errors in console for newer versions).

New subcommand:
/iwarp arename <oldname> <newname>
New permission:
iwarp.command.adminrename - defaults to OP

Fixed issue with faulty create conversation.
Also removed a debug output message.

Fix issue where /iwarp create was able to overwrite non-iwarp warps (i.e warps made with /setwarp)

Fixed issue with the renew command where attempting to renew a non-existing warp would charge the player money with no effect.
Now, a message saying the warp was not found will be displayed instead.

Added support for offline player lookup in /iwarp info command and made it config-toggleable. ( lookup-offline-players in config[/url])

Added possibility to show expiry notification when a warp is about to expire. ( addons.warp-expiry-notifier in config, you can make only the owner see the message with only-owner and change the number of days of notifications with days-for-notification)

Added possibility to list (or not list) warps owned through Essentials in /iwarp list. ( include-essentials-warps-in-list in config)

Now, you can enable logging of expired warp locations in the config.
The logs will be stored in oldwarps.yml.

Added option to have a confirm message when creating or moving a warp, plus messages involved.

Added a reload command to reload config + warps, messages involved.

Expired warps are now listed in console when expired.

Minor code revision.