1There are times when we make changes that include a temporary shim for 2backward-compatibility (e.g., a macro or some other function to preserve 3the original API) to avoid having to bump the major version number in 4the next release. However, when we do eventually want to release a 5feature that does change the API in a non-backward-compatible way, we 6will wind up bumping the major version number anyway, at which point we 7can take the opportunity to clean up any pending backward-compatibility 8shims. 9 10This file lists all pending backward-compatibility changes that should 11be cleaned up the next time we are going to bump the major version 12number: 13 14- remove `GRPC_ARG_MAX_MESSAGE_LENGTH` channel arg from 15 `include/grpc/impl/codegen/grpc_types.h` (commit `af00d8b`) 16 (cannot be done until after next grpc release, so that TensorFlow can 17 use the same code both internally and externally) 18