Clarification on double_contract() usage in dealii 9.4.2

[ME20D503 NEWTON]

Dear All,
I wanted to check whether it is safe to use the double_contract() function in deal.II 9.4.2. I came across a note in the documentation mentioning that it has been deprecated, which left me  confused.
If anyone has clarity on this, please let me know.

Thank you

[Matthias Maier]

The only mention of a deprecated *double_contract()* that I can find is
from version 8.4.0 from 2015. And I don't quite remember what I removed
back then.

So yes, using *double_contract()* as it appears in version 9.4.2 or
later is perfectly fine. The methods are also not deprecated.

Best,
Matthias

On Sat, Oct 4, 2025, at 05:09 CDT, ME20D503 NEWTON <me20...@iittp.ac.in> wrote:

> Dear All,

> I wanted to check whether it is safe to use the *double_contract()*

> function in deal.II 9.4.2. I came across a note in the documentation

> mentioning that it has been* deprecated*, which left me confused.