I haven't changed my wedge's finial design in years, but it is different.
(Two old planes in front of two new planes)
My side rounds seem to constantly evolve and still change slightly every year or two.
The mortises remain tight.
(new on left, old on right)
Other facets of the planes, however, still change slightly as I tweak my methods and make still better tools more efficiently. I am, after thousands of planes, still learning about these tools.
Some methods have changed as the business has evolved.
Other methods remain the same as I'll be teaching classes like I have in the past:
But let's try a new venue for teaching now that I have many more years of talking behind me: