The plug-in architecture arrived with FreeNAS 8.2 and FreeNAS versioning was synchronized with FreeBSD for clarity.
ðə plˈʌɡɪn ˈɑːɹkɪtˌɛktʃɚɹ ɚɹˈaɪvd wɪð fɹˈiː ˌɛnˌeɪˈɛs ˈeɪt.tˈuː ænd fɹˈiː ˌɛnˌeɪˈɛs vˈɜːʒənɪŋ wʌz sˈɪŋkɹənˌaɪzd wɪð fɹˈiː bˌiːˌɛsdˈiː fɔːɹ klˈæɹᵻɾi.