End of Support means when a Skylight Version is too old and not worth updating anymore. This doesn't mean that you cannot use the operating system. It just means bugs and other improvements won't be added or fixed.
Skylight Cerulean doesn't have an End of Support date yet!
Skylight Azurine Doesn't have an End of Support date yet!
Skylight Server 2023 has an end of support date of 8/4/24
Skylight Neptune's End of Support date was 12/32/24
Skylight Mirage's End of Support date was 7/20/23
Skylight Mavi's End of Support date was 1/20/23
Skylight Oxford's End of Support date was 9/20/22
Skylight Capri's End of Support date was 6/2/22
Skylight Azul's End of Support date was 1/15/22
Skylight Yinmn's End of Support date was 12/1/21
Skylight Sapphire's End of Support date was 10/27/21
Skylight 0.4.1's End of Support date was 6/26/21
Skylight 0.3's End of Support date was 6/26/21