v0.3.4
Bump version to 0.3.4 and add a Fabric install note: deltalake is preloaded by the runtime, so `%pip install duckrun --upgrade` only takes effect after `notebookutils.session.restartPython()` — that restart is what swaps in the pinned deltalake 1.5.0. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>