Prepare changes for 1.4.0 release (#325)

Consume new version of mountpoint_s3_client and prepare changes for 1.4.0 release

Author: IsaevIlya

CHANGELOG.md

@@ -1,14 +1,20 @@
-## TBD
+## v1.4.0 (April 9, 2025)
 
 ### New features
 * Introducing support of FSDP in DCP benchmark (#313)
-* Exposing max_attempts setting through S3ClientConfig and adding support of S3ClientConfig to DCP
+* Exposing max_attempts setting through S3ClientConfig and adding support of S3ClientConfig to DCP (#322)
 
 ### Bug fixes
 * Consume mountpoint-s3-client changes for race condition on GET request path, that may lead to an empty response 
 
+### Other changes
+* Update Pyo3 version (#314)
+
 ### Breaking changes
-* No breaking changes. 
+* We changed the way we handle `fork` operations. The CRT client used for communication with S3 is not stable 
+during `fork` due to global state and locks held by background threads. To address this, we now clean up all 
+existing CRT clients before a `fork` operation and create new CRT clients in the child process. 
+This change prevents segfaults and hanging GET requests for training workloads that rely on `fork` (#320)  
 
 ## v1.3.2 (February 5, 2025)
 

s3torchconnector/pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "s3torchconnector"
-version = "1.3.2"
+version = "1.4.0"
 description = "S3 connector integration for PyTorch"
 requires-python = ">=3.8,<3.13"
 readme = "README.md"
@@ -23,7 +23,7 @@ classifiers = [
 
 dependencies = [
     "torch >= 2.0.1, != 2.5.0",
-    "s3torchconnectorclient == 1.3.2",
+    "s3torchconnectorclient == 1.4.0",
 ]
 
 [project.optional-dependencies]
@@ -53,7 +53,7 @@ lightning = [
 lightning-tests = [
     "s3torchconnector[lightning]",
     "s3fs",
-    "torchmetrics != 1.7.0", # version 1.7.0 breaks lightning checkpoints e2e tests during "lightning" module import
+    "torchmetrics != 1.7.0, != 1.7.1", # version 1.7.0 and 1.7.1 breaks lightning checkpoints e2e tests during "lightning" module import
 ]
 
 dcp = [