According to Odaily, Go Ethereum, the Ethereum client in Go language, has announced the release of its Geth v1.14.6 version. This new version introduces the experimental witness building verification code used in the 'cross-validation' proposal. The introduction of this experimental code is a significant step forward in the development of the Ethereum client. The 'cross-validation' proposal is a key part of the ongoing improvements to the Ethereum network. The new Geth v1.14.6 version is expected to enhance the overall performance and security of the Ethereum network. Further details about the specific improvements and changes in the new version were not provided in the announcement.