the new upstream release offers a few performance improvements for avx and neon and packaging now includes quad precision libraries and finer grained packages.
Attached the debdiff against the debian version.
The transitional package libfftw3-3 depends on the single and double packages so no explicit transition is needed
Some high popcon packages should be rebuilt to save some space and bandwidth (e.g. imagemagick)
(nothing in ubuntu links against the long double symbols so the libfftw3-3 does not depend on it)
fftw3 (3.3.3-1) experimental; urgency=low
* New upstream release (Closes: #694401)
* split the precision libraries into separate packages:
- libfftw3-single3: single precision
- libfftw3-double3: double precision
- libfftw3-long3: long double precision
- libfftw3-quad3: quad precision (Closes: #691677)
- libfftw3-3: transitional package depending on single and double
- libfftw3-dev: depends on all precisions
- libfftw3-mpi3: continues to contain all precisions
* Acknowledge NMU, thanks Ansgar Burchardt
* add debian/source/extended-diff-ignore to ignore generated files
* add hardening flags to long long test so build log check does not complain
* drop --with-gcc-arch configure flag, has no effect anymore
* use dh-autoreconf
* Bump to standards 3.9.4, no changes required
* add .NOTPARALLEL to debian/rules
* escape minus signs in 03_fix_manpages.diff
* pkg-config.patch: move -lm to Libs.private
* delete obsolete and disabled 10_uptodate_configure.diff
* don't install tests as examples, they are not good examples and won't
compile without files in the source tree
Thanks. Uploaded with this bug number added to your changelog entry.