No, your plots are virtually unaffected by the passage of time, aside from hardware errors. Even in the presence of bit flips due to aging hardware, plots remain mostly effective. The only cases where you would need to re-plot are: 1. if you are using solo plots (not NFT plots) and wish to join a pool (please see note below) or 2. if hardware speeds advance to the point of a certain k value becoming obsolete (e.g., k=32 becomes too fast to plot and we ban them, forcing you to replace them with k≧33 plots). For case 1., you are free to have any mix of solo plots and pool plots if you do not want to re-plot. For case 2., k=32 is not expected to become outdated until sometime between 2026-2031.
- Note on case 1: We have added a Pooling Protocol that replaces the hard-coded "Pool Public Key" of a plot, with a plotNFT's "Pool Contract Address" - more on this subject can be read here: https://github.com/Chia-Network/chia-blockchain/wiki/Pooling-FAQ