I plan on releasing 2.5.1 tomorrow and I've tentatively scheduled creating the 2.6 branch on April 2, followed by 2.6.0 on April 18.
As discussed previously we'll drop support for Qt 4 and GTK+ in the master branch after master-2.6 is created. Unless there are strong objections I'd like to bump the minimum GLib version to 2.32.
I'd also like your opinion on doing the following:
Deprecating or removing Autotools. We'd need generate source tarballs using another method, e.g. tools/git-export-release.sh.
Shipping the Windows installers with Npcap.
Renaming protocols to match current reality, e.g. "bootp" to "dhcp" and "ssl" to "tls".