On Mon, Jun 12, 2017 at 12:32 PM, Mathias Schickel
<msch@fa.uni-tuebingen.de> wrote:
> Dear Hans,
>
> the newest beta (I have updated some hours ago) contains again some bugs regarding the size and placement of primes. You can verify that by using the following minimal example (created to show some older bugs being resolved meanwhile):
>
> %%%%%%%
> \starttext
> %
> Compare $f'$ to $(f')$ and to $f''$, $(f'')$, $f^{''}$ and $(f^{''})$.
> %
> \startformula
>         %
>         \int\nolimits_a^b \bigl(\|f(x)\|\bigr)\, {\mathrm d}x
>         %
> \stopformula
> %
> \stoptext
> %%%%%%%
>
> The output is attached. The primes are obviously rendered too small. And while $f'$ seems to lead to a placement of the prime a little too low, $f^{'}$ seems to cause the prime being placed too high.
>
> Best
> Mathias
>
>
>
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I think this is intended (see the other thread). Hans decided to do
the primes differently, which means that they will look strange until
luatex 1.05 is out. You can compile luatex 1.05 yourself, and you will
see that the primes look OK. I attach a pdf result of your file,
compiled with 1.05.

/Mikael