Yes, usually. If you purchase a Spine license today, you are legally allowed to download and use version 4.1 (2021) for legacy projects. Check your license agreement under "Version Locking."
New Sequence attachments allow you to treat a series of images as a single keyed animation, making it much easier to mix traditional frame-by-frame elements (like dust or VFX) with skeletal movement. spine 41 2021 download
