Australia I understood is to acquire Tomahawk missiles for its submarines under the AUKUS agreem
Todjaeger
Potstirrer
I know that the announcement was on the AusGov Defence website, but I would still hold off on making that assumption. The (US) DCMA announcement previously issued on approval for the sale of up to 220 RGM-109E Tomahawk missiles did not mention any inclusion of the sub-launched UGM-109 version and so far I have not come across any new/updated DCMA announcement, or related approvals from either State or the Senate authorizing the sale of sub-launched Tomahawks, or the kit which would likely be needed to convert a ship-launched to a sub-launched cruise missile. So at this point not sure if there is another announcement coming out, or if there is something else which we have missed.
TBH from my POV Australia going to the time and expense of changing Tomahawks into sub-launched versions seems like an unwise and unnecessary waste of time and resources.