Release it in two ways simultaneously.

One, public, going for maximum exposure. This causes (short-term) availability. Assume this channel can get compromised at any time. Ie. clearweb.

Two, at the same time, a more censorship resistant solution such as Tor or IPFS. Ie. darkweb.

At the very least you should research the second option beforehand. I'd say though, if you already include the address in say your GitHub, then this allows caching beforehand hence a smoother transition.

I saw this recently applied in alt-right movement. People getting banned from Twitter and Facebook already mentioning their contact info on darkweb beforehand cause they saw it coming.