This issue is tracking the deprecation of the (1) configs (2) model checkpoints quantized with these configs.

What is deprecated:

1. We added version 2 config in Add Float8Tensor #2463, and switched the default version to 2 in Bump version for float8 dynamic quant and weight only quant configs #2650, the version 1 config is now deprecated, please use version 2 config to quantize the model
2. the quantized checkpoints quantized with version 1 config previously is deprecated as well, and we plan to remove the support to load these checkpoints after pytorch 2.11 release (around 9 months from now)

Timeline:
0.13.0: annouce deprecation for version 1 config
after we migrated all tensor subclasses: remove support for version 1 config
after pytorch 2.11 release: remove support for version 1 checkpoints