Downloading older versions from official sources or reputable archives is generally legal if you have a valid license or the version is freely available.
Legacy versions provide standard digital audio workstation (DAW) features: Basic amplification and normalization. Simple noise reduction (spectral subtraction). High-pass, low-pass, and equalizer filters. Traditional effects like reverb, echo, and flanger. What the New Version Adds wavepad sound editor old version new
Older versions are still sought after for compatibility with aging hardware: wavepad sound editor old version new