Am 22.04.2016 um 10:13 schrieb Sönke Ludwig:

Main changes

  • Drops support for DMD frontend 2.066.x and below (which includes the
    current stable GDC release) and adds support up to 2.071.0
  • Removes all deprecated functionality, as well as the libev driver
  • Contains considerable performance improvement for URLRouter

All changes can be found in the change log:
https://github.com/rejectedsoftware/vibe.d/blob/master/CHANGELOG.md

Please help testing by running dub upgrade --prerelase on your project.

The second beta contains some Json and serialization related fixes, as
well as some WebSocket improvements. If no further issues come up, this
will be tagged as a release candidate on June 6th.

Instead of dub upgrade --prerelease you need to manually put
"0.7.29-beta.2" into dub.selections.json, because there is already a
0.7.30-alpha.1 version, which would otherwise be chosen.