It's okay to release something relying on 1.8.3-dev+, but that's something which should be clearly stated in the first post, and it would be worth to add some check inside the plugin like :
Code:
#if AMXX_VERSION_NUM < 183
#error "This plugins requires AMX Mod X 1.8.3-dev, see http://www.amxmodx.org/snapshots.php."
#endif
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