How do you animate changes in edit mode in Blender?

To animate changes in Blender's edit mode, you need to insert keyframes for the specific changes you make to the mesh.

Here's a breakdown of the process based on the provided reference:

Steps to Animate Edit Mode Changes

Enter Edit Mode: Select your object and switch to Edit Mode.
Check Location (If Necessary): In the case that you are animating the location of your vertices, ensure that the "location" property is checked.
Insert Initial Keyframe: With the property you would like to animate selected, press the I key to insert a keyframe at your starting point. This captures the initial state of your mesh or the selected property.
Make Changes: Move the current frame to where you would like the change in animation to occur on your timeline. Modify the mesh as desired. For example, you could move an edge, extrude a face, or scale some vertices.
Insert Second Keyframe: After making your edit, press the I key again to insert another keyframe. This keyframe saves your edited state for this specific frame.
Return to Object Mode: Once you've set your keyframes in edit mode, you need to switch back to object mode in order to play your animation and see it come to life.

Keyframe Types: The keyframe you insert will depend on the types of changes you make. Common options include location, rotation, and scale.
Timeline: Use Blender's timeline to navigate between frames to review your animations.
Object Mode Transition: Once you're done editing keyframes in edit mode, ensure to return to object mode.
Mesh Topology: Be aware that drastic changes in the mesh topology (adding or removing vertices/faces) can make it difficult for Blender to blend between keyframes and create smooth animations.

Let's say you want to animate a simple edge moving upwards:

Select your mesh object and enter Edit Mode.
Select the edge you wish to move.
Press I to insert a keyframe for the location property at the current frame of your animation timeline.
Advance a few frames forward on the timeline.
Move the edge upwards, or anywhere you want.
Press I again to insert another keyframe.

Now, when you play the animation, the edge will smoothly transition from its original position to its moved position.

By following these steps, you can effectively animate changes made in Blender's Edit Mode.