Aptos has just proposed an upgrade for AIP-137, focusing on adding support for post-quantum signatures at the account level. In my opinion, this is a long-term preparatory step to mitigate the risks when future quantum computers could break current encryption algorithms.
If you have been following me for a while, you would know that Solana has also been preparing for this and Aptos is the second L1 following that. I also evaluate this project quite positively.
The upgrade of AIP-137 will allow accounts on Aptos to flexibly support new types of signatures, rather than relying entirely on traditional signature standards. This enables the network to gradually transition to new security standards without the need for a hard fork or significant architectural changes.
The noteworthy point is that Aptos does not say that the quantum threat is 'imminent', but they are one step ahead. While many other blockchains still view quantum as a very distant story, Aptos has begun to incorporate this issue into account-level design, which directly affects users' assets and control.
Looking more broadly, this proposal shows that Aptos is positioning itself as a Layer 1 aimed at a very long lifecycle, ready to adapt to major technological changes in the next 10–20 years, rather than just optimizing for the short-term story of the market.
