*   Unified eager and `tf.function` execution:

    *   Eager mode can now execute each op as a `tf.function`, allowing for more
        consistent feature support in future releases.
    *   It is available for immediate use.
        *   See the `TF_RUN_EAGER_OP_AS_FUNCTION` environment variable in

The focus of this release is **compatibility** with Pydantic v1 and v2, to make sure your current apps keep working. Later there will be more focus on refactors, correctness, code improvements, and then **performance** improvements. Some third-party early beta testers that ran benchmarks on the beta releases of FastAPI reported improvements of **2x - 3x**. Which is not bad for just doing `pip install --upgrade fastapi pydantic`. This was not an official benchmark and I didn't check it myself, but it's...

 s0 ^= xk[k+0] s1 ^= xk[k+1] s2 ^= xk[k+2] s3 ^= xk[k+3] _ = dst[15] // early bounds check byteorder.BEPutUint32(dst[0:4], s0) byteorder.BEPutUint32(dst[4:8], s1) byteorder.BEPutUint32(dst[8:12], s2) byteorder.BEPutUint32(dst[12:16], s3) } // Decrypt one block from src into dst, using the expanded key xk. func decryptBlockGeneric(c *blockExpanded, dst, src []byte) { checkGenericIsExpect() xk := c.dec[:] _ = src[15] // early bounds check s0 := byteorder.BEUint32(src[0:4]) s1 := byteorder.BEUint32(src[4:8])...

### Increase the Kubernetes support window to one year

As of Kubernetes 1.19, bugfix support via patch releases for a Kubernetes minor release has increased from 9 months to 1 year.

A survey conducted in early 2019 by the working group (WG) Long Term Support (LTS) showed that a significant subset of Kubernetes end-users fail to upgrade within the previous 9-month support period.