This is a testnet release.
https://github.com/anza-xyz/agave/blob/v4.0/CHANGELOG.md
What's Changed
- Bump version to 4.0.0-beta.3 by @github-actions[bot] in #11276
- v4.0: transaction verification cleanups (backport of #10950) by @mergify[bot] in #11287
- v4.0: fix(net-utils): harden ip echo client response parsing (backport of #11362) by @mergify[bot] in #11394
- v4.0: feature-set: core bpf stake program v5 (backport of #11316) by @mergify[bot] in #11368
- v4.0: ag migration: ignore empty genesis certificate account (backport of #11384) by @mergify[bot] in #11404
- v4.0: rekey feature: discard unexpected data complete shreds (backport of #11382) by @mergify[bot] in #11414
- v4.0: fix: explicitly set burn_percent to match implicit feature gate activation behavior (backport of #10404) by @mergify[bot] in #11405
- v4.0: replay: validate chained block id on parallel replay path as well (backport of #11353) by @mergify[bot] in #11357
- v4.0: limit ip echo usage (backport of #11417) by @mergify[bot] in #11422
Full Changelog: v4.0.0-beta.2...v4.0.0-beta.3