Download Rtools 4.5.6608

Distributed as rtools45-6608-6492.exe and rtools45-aarch64-6608-6492.exe.
In this Rtools release, package quantlib 1.38 has been added. Upstream MXE changes have been merged from 53a0021aec08cda84c26eb0bb603961eb84f91dc. and additional packages have been updated as detailed below:
boost 1.87.0 to 1.88.0
cairo 1.18.2 to 1.18.4
c-ares 1.34.4 to 1.34.5
curl 8.12.1 to 8.13.0
dlfcn-win32 1.4.1 to 1.4.2
expat 2.6.4 to 2.7.1
ffmpeg 7.1 to 7.1.1
flint 3.1.3-p1 to 3.2.2
fluidsynth 2.4.3 to 2.4.6
gdal 3.10.2 to 3.11.0
gettext 0.24 to 0.25
glib 2.83.4 to 2.85.0
gpgme 1.24.2 to 1.24.3
harfbuzz 10.3.0 to 11.2.1
hiredis 1.2.0 to 1.3.0
icu4c 76.1 to 77.1
imagemagick 7.1.1-44 to 7.1.1-47
intel-tbb 2022.0.0 to 2022.1.0
jasper 4.2.4 to 4.2.5
kealib 1.6.1 to 1.6.2
libarchive 3.7.7 to 3.8.0
libde265 1.0.15 to 1.0.16
libdeflate 1.23 to 1.24
libffi 3.4.7 to 3.4.8
libgcrypt 1.11.0 to 1.11.1
libgpg_error 1.51 to 1.55
libheif 1.19.5 to 1.19.8
libidn2 2.3.7 to 2.3.8
libpng 1.6.47 to 1.6.48
libraw 0.21.3 to 0.21.4
libsbml 5.20.4 to 5.20.5
libuv 1.50.0 to 1.51.0
libvpx 1.15.0 to 1.15.1
libxml2 2.12.9 to 2.12.10
libxslt 1.1.42 to 1.1.43
minizip 4.0.8 to 4.0.10
mpfr 4.2.1 to 4.2.2
nghttp2 1.64.0 to 1.65.0
openssl 3.4.1 to 3.5.0
pango 1.56.1 to 1.56.3
pixman 0.44.2 to 0.46.0
poppler 25.02.0 to 25.05.0
postgresql 13.20 to 16.9
proj 9.5.1 to 9.6.0
sqlite 3490100 to 3490200
theora 1.1.1 to 1.2.0
xz 5.6.4 to 5.8.1