Re: [Quantlib-users] Deprecated functions in Quantlib

[Ashish B. <ash...@gm...>]

Thanks Luigi for the answer.

If it was removed in 1.22, then how come it still works and provide us an
output? Would the output be wrong?

If we migrate from FDAm..engine to FDBla..engine, would the output remain
same since both use same inputs? Sorry for my ignorance about it. Am new to
QL.

Regards
Ashish


On Tue, Oct 19, 2021, 4:46 PM Luigi Ballabio <lui...@gm...>
wrote:

> Hello,
>     deprecated functions stay in the library for four or five more
> releases and then they are removed.  The FDAmericanEngine class was
> deprecated in version 1.17 and finally removed in version 1.22, so yes, if
> you upgrade you'll need to use FdBlackScholesVanillaEngine instead.
>
> Luigi
>
>
> On Tue, Oct 19, 2021 at 12:36 PM Ashish Bansal <ash...@gm...>
> wrote:
>
>> Hi,
>>
>> We are using the quantlib for valuating the european and american options
>> using functions which were deprecated in v1.22 in April-2021
>> e.g. FDAmericanEngine. We are calling through python code.
>>
>> Want to know if these will keep working as they were or should they be
>> replaced with new function FdBlackScholesVanillaEngine soon? Is there any
>> date till these will work? Does deprecated mean no new development or
>> existing stops working properly too?
>>
>> Thanks
>> Ashish Bansal
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>