* New docs: [Dependencies with `yield` - Early exit and `scope`](https://fastapi.tiangolo.com/tutorial/dependencies/dependencies-with-yield/#early-exit-and-scope).

### Internal

    *   Keras-based LSTM models must be converted with an explicit batch size in
        the input layer.

## Bug Fixes and Other Changes

### TF Core:

*   Set `tf2_behavior` to 1 to enable V2 for early loading cases.
*   Add `execute_fn_for_device function` to dynamically choose the
    implementation based on underlying device placement.
*   Eager:
    *   Add `reduce_logsumexp` benchmark with experiment compile.

 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])...

 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])...

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. 
A yearly support period provides the cushion end-users appear to desire, and is more in harmony with familiar annual planning cycles.