remove v0.7.0 warning

streaming/base/dataset.py

@@ -415,9 +415,7 @@ def __init__(self,
                           f'predownload to at-least batch_size.')
         elif self.predownload is None:
             logger.warning(f'Because `predownload` was not specified, it will default to ' +
-                           f'8*batch_size if batch_size is not None, otherwise 64. Prior to ' +
-                           f'Streaming v0.7.0, `predownload` defaulted to ' +
-                           f'max(batch_size, 256 * batch_size // num_canonical_nodes).')
+                           f'8*batch_size if batch_size is not None, otherwise 64.')
             self.predownload = 8 * self.batch_size if self.batch_size is not None else 64
 
         # Convert epoch size from string to int, if needed. Cannot be negative.
@@ -671,8 +669,7 @@ def _set_shuffle_block_size(self, world: World):
             if not world.worker_of_rank:
                 logger.warning(f'Because `shuffle_block_size` was not specified, it will ' +
                                f'default to max(4_000_000 // num_canonical_nodes, 1 << 18) if ' +
-                               f'num_canonical_nodes is not None, otherwise 262144. Prior to ' +
-                               f'Streaming v0.7.0, `shuffle_block_size` defaulted to 262144.')
+                               f'num_canonical_nodes is not None, otherwise 262144.')
             self.shuffle_block_size = max(4_000_000 // self.num_canonical_nodes, 1 << 18) \
                 if self.num_canonical_nodes is not None else 1 << 18
 
@@ -700,9 +697,7 @@ def _resume(self, world: World, epoch: int) -> tuple[int, int]:
                         logger.warning(
                             f'Because `num_canonical_nodes` was not specified, and ' +
                             f'`shuffle_algo` is {self.shuffle_algo}, it will default to ' +
-                            f'be equal to physical nodes. Prior to Streaming ' +
-                            f'v0.7.0, `num_canonical_nodes` defaulted to 64 * physical ' +
-                            f'nodes.')
+                            f'be equal to physical nodes.')
                     self.num_canonical_nodes = world.num_nodes
             self._set_shuffle_block_size(world)
             return epoch, 0
@@ -723,9 +718,7 @@ def _resume(self, world: World, epoch: int) -> tuple[int, int]:
                         logger.warning(
                             f'Because `num_canonical_nodes` was not specified, and ' +
                             f'`shuffle_algo` is {self.shuffle_algo}, it will default to ' +
-                            f'be equal to physical nodes. Prior to Streaming ' +
-                            f'v0.7.0, `num_canonical_nodes` defaulted to 64 * physical ' +
-                            f'nodes.')
+                            f'be equal to physical nodes.')
                     self.num_canonical_nodes = world.num_nodes
             self._set_shuffle_block_size(world)
             return epoch, 0